CCNA3 FINAL - ESwitching Final Exam - CCNA Exploration: LAN Switching and Wireless (Version 4.0)

Take Assessment - ESwitching Final Exam - CCNA Exploration: LAN Switching and Wireless (Version 4.0) 
November 02, 2010
           
1
 
Refer to the exhibit. An administrator documented the output of a CAM table from an Ethernet switch as shown. What action will the switch take when it receives the frame shown at the bottom of the exhibit?

discard the frame

forward the frame out port 2

forward the frame out port 3

forward the frame out all ports

forward the frame out all ports except port 3

add station 00-00-3D-1F-11-05 to port 2 in the forwarding table

   
2

Refer to the exhibit. An administrator issues the commands as shown on SwitchB. What is the result for port Fa0/22?

CCNA2 Skill v4.0

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Given the network as in the diagram above, you need to create subnets with the given IP address of a major IP network. As for router configuration, you need to make the IP routing among all network segments. After finishing the configuration tasks, students have to ‘capture’ the configuration to text files and give to the examiner.

Note: Regarding the overall cooperation among team members –example: IP subnneting– the examiner watches the performance of the whole team and gives the score.

Section 1: IP Planning (20 points, for all team)

Use VLSM to assign IP address for each network.

Section 2: Basic configuration (20 points, for each student)

Overall requirements: all network segments in the network diagram can connect to each other.

a) Router name: Assign the names as given to each router accordingly.

b) IP address and subnest mask: Set IP address correcly for all related interfaces.

c) Password: Console, AUX, and vty lines are password protected, password= ‘cisco’; set the secret password to ‘class’.

d) Banner and descriptions: Banner contains the name of the student who configures it; descriptions of interface contain the name of the device it connects to. Banner (motd) example: Hello, this is router 1, configured by Alice. Interface description example: Connect to router ‘saigon’.

e) Backup configuration file: back up configuration file of each router using either TFTP or Capture Text.

Section 3: Routing (40 point, for each student)

Student 1:

Use EIGRP 100 for interface serial 1, 2, loopback 0. Use OSPF for interface serial 3.

Redistribute between OSPF and EIGRP (include the default-route which R1 learnt from EIGRP).

Student 2:

Use EIGRP 100 for interfaces serial 1, 2 and loopback 1

Configure the default-route through Lo0, and propagates it into EIGRP 100.

Student 3:

Use EIGRP 100 for interfaces serial 0/0, 0/1 and loopback 0

Configure static route (one command) for all remote routes through Lo0, and propagates into EIGRP 100.

Student 4:

Use OSPF for interfaces serial 0/1, fastEthernet 0/0 and loopback 0

Configure static route (one command) for all remote routes through Lo0, and propagates into OSPF area.

Student 5:

Use OSPF for interfaces serial 0, 1 and loopback 0

Configure static route (one command) for all remote routes through Lo0, and propagates into OSPF area.

Student 6:

Use OSPF for interfaces serial 0, Ethernet 0/0 and loopback 0

Configure static route (one command) for all remote routes through Lo0, and propagates into OSPF area.

Section 4: Question sheet (20 points, for each student)

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-----------4 Questions Updated 25/03/2009-----------------
1
Which statement is true about open authentication when it is enabled on an access point?

requires no authentication

uses a 64-bit encryption algorithm

requires the use of an authentication server

requires a mutually agreed upon password


2



Refer to the exhibit. The switches in the exhibit have VTP pruning enabled. What will be pruned in the VTP advertisements from switch ST-C to switch ST-1?
VLAN 30
VLAN 20 and VLAN 30
VLAN 1, VLAN 20, and VLAN 30
VLAN 2 through VLAN 29, and VLAN 31 through VLAN 1000




3



Refer to the exhibit. Router RA receives a packet with a source address of 192.168.1.35 and a destination address of 192.168.1.85. What will the router do with this packet?

The router will drop the packet.

The router will forward the packet out interface FastEthernet 0/1.1.

The router will forward the packet out interface FastEthernet 0/1.2.

The router will forward the packet out interface FastEthernet 0/1.3.

The router will forward the packet out interface FastEthernet 0/1.2 and interface FastEthernet 0/1.3.




4


Refer to the exhibit. The switches are configured for VTP as shown. Which two statements correctly describe the operation of these switches? (Choose two.)

A new VLAN can be added to Switch1 and that information will be added only to Switch2.

A new VLAN can be added to Switch1 and that information will be added to Switch2 and Switch4.

An existing VLAN can be deleted from Switch4 and that VLAN will be deleted from Switch1 and Switch2.

An existing VLAN can be deleted from Switch2 and that VLAN will be deleted from Switch1 and Switch4.

A new VLAN can be added to Switch4 and that information will be added to Switch1, Switch2, and Switch3.

A new VLAN can be added to Switch3 and that information will be added to Switch1, Switch2, and Switch4.


-------------------/4 New Question----------------------------------------


1

Refer to the exhibit. The network administrator needs to setup Switch1 for remote access from HostA. The show ip interface brief is issued on Router1 and the show interfaces trunk command is issued on the
Switch1 to verify the current status. The administrator applies the additional configuration shown in the exhibit to Switch1. However, the telnet from HostA fails. What additional commands need to be applied

to the switch?


Switch(config)# interface vlan 1
Switch(config-if)# ip address 10.1.1.250 255.255.255.0
Switch(config-if)# no shutdown
Switch(config-if)# ip default-gateway 10.1.10.254

Switch(config)# interface vlan 1
Switch(config-if)# ip address 10.1.50.250 255.255.255.0
Switch(config-if)# no shutdown
Switch(config-if)# ip default-gateway 10.1.50.254


Switch(config)# interface vlan 10
Switch(config-if)# ip address 10.1.10.250 255.255.255.0
Switch(config-if)# no shutdown
Switch(config-if)# ip default-gateway 10.1.10.254



Switch(config)# interface vlan 10 ******TRUE
Switch(config-if)# ip address 10.1.1.250 255.255.255.0
Switch(config-if)# no shutdown
Switch(config-if)# ip default-gateway 10.1.10.254


Switch(config)# interface vlan 50
Switch(config-if)# ip address 10.1.10.250 255.255.255.0
Switch(config-if)# no shutdown
Switch(config-if)# ip default-gateway 10.1.10.254

2


Refer to the exhibit. On the basis of the configuration shown, how will an Ethernet frame on port GigabitEthernet0/1 be modified?

802.1Q encapsulation prepends a 4-byte tag field in front of the original Ethernet frame and recomputes the frame check sequence (FCS) on the modified frame.

802.1Q encapsulation inserts a 4-byte tag field into the original Ethernet frame between the source address and type/length fields and recomputes the frame check sequence (FCS) on the modified frame. ******TRUE
802.1Q encapsulation prepends an 802.1p field in front of the original Ethernet frame and recomputes the frame check sequence (FCS) on the modified frame.

802.1Q encapsulation inserts an 802.1p field into the original Ethernet frame between the source address and type/length fields and recomputes the frame check sequence (FCS) on the modified frame.




3
What VLANs are allowed across a trunk when the range of allowed VLANs is set to the default value?
All VLANs will be allowed across the trunk. ******TRUE
Only VLAN 1 will be allowed across the trunk.
Only the native VLAN will be allowed across the trunk.
The switches will negotiate via VTP which VLANs to allow across the trunk.
4

Which parameter is used to uniquely identify one wireless network from another?
SSID ******TRUE

OFDM

WEP

DSSS

5

Refer to the exhibit. What is the consequence if SW1 port F0/1 is configured as an edge port?

SW1 port F0/1 transitions to the learning state.

SW1 port F0/1 can generate a temporary loop. ******TRUE

SW1 port F0/1 becomes a non-designated port.

SW1 port F0/2 no longer passes BPDUs to SW4.
6
Refer to the exhibit. What will allow a host on VLAN 40 on switch X to communicate with a host in VLAN 40 on switch Y?

QoS
routing
trunking ******TRUE
VPN

7

Refer to the exhibit. Spanning-tree port priorities are 128 for all interfaces. The network administrator enters the spanning-tree vlan 1 root primary command on S4. Which two port results are correct? (Choose two.)
S1 Gi0/1 becomes a root port. ******TRUE
S2 Gi0/2 becomes a non-designated port.
S3 Gi0/1 becomes a non-designated port.
S4 Gi0/1 becomes a root port.
S4 Gi0/2 becomes a designated port. ******TRUE
8
Refer to the exhibit. Which two facts can be confirmed by this output? (Choose two.)
This switch shows no configuration revision errors.
This switch has established two-way communication with the neighboring devices.
This switch is configured to advertise its VLAN configuration to other VTP-enabled switches in the same VTP domain. ******TRUE
This switch will drop all VTP advertisements that come from the switches that are configured in the same VTP domain.
This switch will cause no disruption in the VTP domain operations if the rest of the switches in the same VTP domain have a higher configuration revision number. ******TRUE
9


Refer to the exhibit. R1 is configured for traditional inter-VLAN routing. R1 can ping computer 3 but cannot ping computer 1. What is a possible cause for this failure?
S1 port Fa0/11 is in the wrong VLAN. ******TRUE
R1 does not have an active routing protocol.
The IP address of computer 1 is in the wrong logical network.
Router interface Fa0/0 has the wrong trunk encapsulation type configured.

10

Refer to the exhibit. Both switches are interconnected via a trunk link. Host A and host B are on the default VLAN but are not able to exchange traffic. What should be done to fix the problem?
Allow all VLANs on the trunk link.
Remove the native VLAN from the trunk.
Include a router or switch with Layer 3 capabilities.
Configure the same native VLAN on both ends of the trunk. ******TRUE
11
Refer to the exhibit. The hosts connected to switch SW1 are not able to communicate with the hosts in the same VLANs connected to switch SW2. What should be done to fix the problem?
Configure VLANs with different VLAN IDs on switch SW2.
Reconfigure the trunk port on switch SW2 with static trunk configuration. ******TRUE
Introduce a Layer 3 device or a switch with Layer 3 capability in the topology.
Apply IP addresses that are in the same subnet to the interfaces used to connect SW1 and SW2.

12
What happens when the crypto key zeroize rsa command is entered on a switch configured with the transport input ssh command on the vty lines?
A new RSA key pair is created.
The switch defaults to allowing Telnet connections only.
The switch is no longer able to make SSH connections as an SSH client.
The switch allows remote connections only after a new RSA key pair is generated. ******TRUE

13

Refer to the exhibit. An Ethernet switch has developed the CAM table shown. What action will the switch take when it receives the frame shown at the bottom of the exhibit?

forward the frame out all interfaces except Interface3 ******TRUE


add station 00-00-3D-1F-11-05 to Interface2 in the forwarding table

forward the frame out Interface3


discard the frame
forward the frame out all interfaces

forward the frame out Interface2
14

Which two statements describe Spanning Tree Protocol? (Choose two.)

It eliminates Layer 2 loops in network topologies. ******TRUE
It eliminates the need for redundant physical paths in network topologies.
It can only be used in networks in which Layer 2 switching is in use. ******TRUE
It can only be used in networks where both routers and switches are used together.
It can only be used in networks where routers are installed.

15


Refer to the exhibit. A new host needs to be connected to VLAN 1. Which IP addresses should be assigned to this new host?
192.168.1.11 /28
192.168.1.22 /28 ******TRUE
192.168.1.33 /28
192.168.1.44 /28
192.168.1.55 /28
16
Refer to the exhibit. How does SW1 manage traffic coming from Host A?
SW1 drops the traffic because it is untagged.
SW1 leaves the traffic untagged and forwards it over the trunk. ******TRUE
SW1 tags the traffic with the lowest VLAN ID value and forwards it over the trunk link.
SW1 encapsulates the traffic with 802.1Q encapsulation and forwards it over the trunk link.
17

Refer to the exhibit. The switches are configured for VTP as shown. Which two statements correctly describe the operation of these switches? (Choose two.)
A new VLAN can be added to Switch1 and that information will be added only to Switch2.
A new VLAN can be added to Switch1 and that information will be added to Switch2 and Switch4. ******TRUE
An existing VLAN can be deleted from Switch4 and that VLAN will be deleted from Switch1 and Switch2. ******TRUE
An existing VLAN can be deleted from Switch2 and that VLAN will be deleted from Switch1 and Switch4.
A new VLAN can be added to Switch4 and that information will be added to Switch1, Switch2, and Switch3.
A new VLAN can be added to Switch3 and that information will be added to Switch1, Switch2, and Switch4.

18
Refer to the exhibit. Computer A sends a broadcast message. Which devices will see the broadcast?
computer B
computer B and Router1
computer C and Router1 ******TRUE
computer B, computer D, computer E and Router1
computer B, computer C, computer D, computer E and Router1
computer A, computer B, computer C, computer D, computer E and Router1
19
Refer to the exhibit. The network administrator enters the configuration shown to allow both SSH and Telnet connections to the switch. The Telnet connections fail. What is the most likely cause of this problem?

The SSH version number is wrong.

SSH has been configured on the wrong line.

Telnet and SSH cannot be configured simultaneously.

The transport input command is configured incorrectly. ******TRUE

20
Refer to the exhibit. Which switch will be elected as the root bridge of the spanning tree topology?
Cat-A
Cat-B
Cat-C ******TRUE
Cat-D
21
Refer to the exhibit. The switches in the exhibit have VTP pruning enabled. Which VLANs will be pruned from switch SW3?
VLAN 10 and VLAN 20 ******TRUE
VLAN 1, VLAN 10, and VLAN 20
VLAN 1, VLAN 1002 through 1005
VLAN 1, VLAN 10, VLAN 20, VLAN 1002 through 1005

22

Refer to the exhibit. What does STATIC indicate in the output that is shown?

The switch will not allow any other device to connect to port Fa0/15.

Traffic destined for MAC address 0000.c123.5432 will be forwarded to Fa0/15. ******TRUE

This entry will be removed and refreshed every 300 seconds to keep it in the table.
The switch learned this MAC address from the source address in a frame received on Fa0/15.
When processing a frame, the switch does not have to perform a lookup to determine the final destination port.

23

Which three statements are ******TRUE regarding router-on-a-stick inter-VLAN routing? (Choose three.)
requires the use of subinterfaces on the router ******TRUE
requires an access link between the router and Layer 2 switch
more cost-efficient and scalable than using multiple physical interfaces ******TRUE
requires each subinterface to be configured with the no shutdown command
can impact performance if many VLANs compete for bandwidth on a single router interface ******TRUE
makes troubleshooting the inter-VLAN routing configuration much less complex than when using multiple physical interfaces

24

Refer to the exhibit. Router RA receives a packet with a source address of 192.168.1.35 and a destination address of 192.168.1.85. What will the router do with this packet?


The router will forward the packet out interface FastEthernet 0/1.1.
The router will forward the packet out interface FastEthernet 0/1.2.
The router will forward the packet out interface FastEthernet 0/1.3.
The router will forward the packet out interface FastEthernet 0/1.2 and interface FastEthernet 0/1.3.
The router will ignore the packet because the source and destination are on the same broadcast domain. ******TRUE
The router will drop the packet since no network that includes the source address is attached to the router.
25

Refer to the exhibit. The network administrator needs to remove the east-hosts VLAN and use the switch port from that VLAN in one of the existing VLANs. What two commands should be used when completely removing VLAN 2 from S1-Central while leaving the switch and all its interfaces operational? (Choose two.)

S1-Central# reload
S1-Central# erase flash:
S1-Central(config)# no vlan 2 ******TRUE
S1-Central# delete flash:vlan.dat
S1-Central(config-if)# switchport access vlan 3 ******TRUE

26
Refer to the exhibit. What does "FORWARDING" mean in the command output shown?

The switch is sending and receiving data frames. ******TRUE
The switch is receiving BPDUs, but not sending data frames.
The switch is participating in an election process by forwarding the BPDUs it receives.
The switch is receiving BPDUs and populating the MAC address table, but not sending data.
27
Refer to the exhibit. Switch SW2 has been newly purchased and added to the network. What configuration should be applied to SW2 so that it participates in the same VTP domain as switch SW1, receives VLAN information from SW1, and synchronizes VLAN information?
Disable VTP pruning on SW2.
Configure SW2 in VTP transparent mode.
Configure SW2 with the VTP domain password. ******TRUE
Configure SW2 as a VTP server with a higher revision number.
28

What are three benefits of a hierarchical network model? (Choose three.)
reduced contention for bandwidth ******TRUE
reduced size of the physical layout
increased fault tolerance of the network ******TRUE
elimination of the need for wiring closets
elimination of the need for layer three functionality
simplification of management and troubleshooting ******TRUE
29
Refer to the exhibit. Which three options correctly identify information that could be associated with this output?(Choose three.)
Interface FastEthernet3/0/0 is subinterfaced. ******TRUE
A non-proprietary trunking protocol is in use. ******TRUE
The configuration is appropriate for a router-on-a-stick network design. ******TRUE
A shutdown command has been applied to interface FastEthernet3/0/0.
Interface FastEthernet3/0/0.3 is mapped to the default management VLAN.
An IP address should be applied to FastEthernet3/0/0 for correct data routing.

30
Refer to the exhibit. Switch SW2 was tested in a lab environment and then inserted into a production network without reloading its configuration. After the trunk link between SW1 and SW2 was brought up, all users lost connectivity to the network. What could be the source of the problem?
All the VLANs were pruned from the trunk port between SW1 and SW2.
SW1 and SW2 cannot be both set as VTP servers in the same VTP domain.
VTP configuration revision number of SW2 was higher than the configuration revision number of SW1. ******TRUE

The additional VLANs from SW2 created more VLANs than the VLAN database of SW1 could contain.

31

Refer to the exhibit. A network administrator needs to implement inter-VLAN routing on a hierarchical network. On which devices should the inter-VLAN routing be configured?
AS1 and AS2
DS1 and DS2
Gateway and CS1 ******TRUE
Gateway, CS1, DS1, and DS2
32

Which three statements are correct concerning the default configuration of a new switch? (Choose three.)

Spanning Tree Protocol is disabled.
Enable password is configured as cisco.
All switch ports are assigned to VLAN1. ******TRUE
The flash directory contains the IOS image. ******TRUE
VLAN1 is configured with a management IP address.
All interfaces are set to auto-negotiation of speed and duplex. ******TRUE

33

Refer to the exhibit. All hosts are in listen mode. Host 1 and Host 4 both transmit data at the same time. How do the hosts respond on the network? (Choose two.)
After the end of the jam signal, a backoff algorithm is invoked. ******TRUE
Hosts 1 and 4 are operating full duplex so no collision will exist.
The hub will block the port connected to Host 4 to prevent a collision.
Hosts 1 and 4 are assigned shorter backoff values to provide them priority to access the media.
If a host has data to transmit after the backoff period of that host, the host checks to determine if the line is idle before transmitting. ******TRUE

34

Refer to the exhibit. After the listed commands are entered into router R1 and switch S1, the administrator enters the show interface fa0/1 trunk and gets the results shown. What is the likely problem?
The trunk is established, but no VLANs have been configured to use it.
The trunk has not been established because the router does not support dynamic trunking protocol. ******TRUE
The router, the switch, or both must be configured with the dynamic desirable option for dynamic trunking protocol to establish a trunk.
The router is missing the dynamic trunking protocol statements necessary to form a trunk.

35

Refer to the exhibit. Which two statements are ******TRUE about the operation of the interfaces? (Choose two.)
Incoming traffic with VLAN ID 0 is processed by interface fa0/0.
Incoming traffic that has a VLAN ID of 2 is processed by subinterface fa0/0.2. ******TRUE
Both subinterfaces remain up with line protocol up, even if fa0/0 line protocol is down.
Subinterfaces use unique MAC addresses by adding the 802.1Q VLAN ID to the hardware address.
Traffic inbound on this router is processed by different subinterfaces, depending on the VLAN from which the traffic originated. ******TRUE

36

What three tasks should be performed before moving a Catalyst switch to another VTP management domain? (Choose three.)
Select the correct VTP mode and version. ******TRUE
Configure the switch with the name of the new management domain. ******TRUE
Download the VTP database from the VTP server in the new domain.
Configure the VTP server in the new domain to recognize the BID of the switch.
Reset the VTP counters to allow the switch to synchronize with the other switches in the new domain.
Verify that the switch has a lower configuration revision number than the other switches in the new domain. ******TRUE
37


Refer to the exhibit. Hosts A and B, connected to hub HB1, attempt to transmit a frame at the same time but a collision occurs. Which hosts will receive the collision jamming signal?
only hosts A and B
only hosts A, B, and C ******TRUE
only hosts A, B, C, and D
only hosts A, B, C, and E

38
Which statement regarding the service password-encryption command is ******TRUE?
The service password-encryption command is entered at the privileged EXEC mode prompt.
The service password-encryption command encrypts only passwords for the console and VTY ports.
The service password-encryption command encrypts all previously unencrypted passwords in the running configuration. ******TRUE
To see the passwords encrypted by the service password-encryption command, enter the no service password-encryption command.


39
Refer to the exhibit. Which two statements are ******TRUE regarding what the cost value of 23 represents for Switch4? (Choose two.)
This cost represents the lowest cost path for Switch4 to the root switch. ******TRUE
A cost of 23 is the value being advertised out port 16 on the switch upstream (closer) to the root switch.
Switch4 adds the cost of a Fast Ethernet link to 23 to determine its total cost to reach the root switch. ******TRUE
Switch4 is connected via a Fast Ethernet link to an upstream switch that in turn is directly connected to the root switch via a Gigabit Ethernet link.
The root switch is advertising a cost of 23, which is lower than any other switch in the VLAN0001 spanning-tree domain.

40

Refer to the exhibit. What three statements describe why Host1 and Host2 are unable to communicate? (Choose three.)

The switch ports are on different VLANs. ******TRUE

The switch IP address is on the wrong subnet.
The hosts are configured on different logical networks. ******TRUE
A router is required to forward traffic between Host1 and Host2. ******TRUE
The VLAN port assignments must be contiguous for each VLAN.
The host default gateway addresses must be on the same logical network.

41

Refer to the exhibit. Each switch is shown with its MAC address. Which switch will be elected as the spanning-tree root bridge if the switches are configured with their default priority values?

switch A
switch B
switch C
switch D
switch E
switch F ******TRUE
42
Refer to the exhibit. Hosts PC_A and PC_B send traffic simultaneously, and the frames from the transmitting stations collide. What is the last device to receive the collision?

hub HB1
switch SW1 ******TRUE
router R1
switch SW2
router R2
switch SW4
43
Top of Form
Why is it important that the network administrator consider the spanning-tree network diameter when choosing the root bridge?
The network diameter limitation is 9.
BPDUs may be discarded because of expiring timers. ******TRUE
The cabling distance between the switches is 100 meters.
The network diameter must be set to the number of meters of the cable between the root bridge and its farthest connected switch.

44
Refer to the exhibit. A network administrator has segmented the network into two VLANs and configured Router1 for inter-VLAN routing. A test of the network, however, shows that hosts on each VLAN can only access local resources and not resources on the other VLAN. What is the most likely cause of this problem?
Switch port Fa0/1 is not trunking. ******TRUE
Router interface Fa0/0 is possibly down.
No routing protocol is configured on Router1.
One of the router subinterfaces is possibly down.
45
What is the purpose of issuing the command switchport mode access on a switch interface?
disable port security
make the port operational
override the default port behavior
force the port to be a part of a single vlan ******TRUE

46


Refer to the exhibit. Which statement is ******TRUE regarding the information shown?
Only one VLAN is currently configured to use the trunk links.
The switch negotiated trunk links for interfaces Fa0/1 and Gi0/1.
A Cisco proprietary protocol is in use for interfaces Fa0/1 and Gi0/1.
Interfaces Gi0/1 and Fa0/1 are allowed to carry data from multiple VLANs ******TRUE.


47

Which identifier is used to keep track of frames that are destined for a particular wireless client?
AID
SSID
BSSID ******TRUE
ESSID

48


Refer to the exhibit. What will happen when frames that contain an unknown source address reach interface fa0/24?

A syslog message will be logged.
Fa0/24 will become error-disabled.
The incoming frames will be dropped. ******TRUE
The security violation count will be incremented.
49
In which mode is a VTP switch operating if it has been configured to only forward VTP advertisements?
client
root
server
transparent ******TRUE

50
Which method establishes an administrative connection for configuring the Linksys WRT300N wireless access point?
Associate with the access point and then open a HyperTerminal session with the access point.
Physically connect to the access point and then reboot the computer to launch the configuration software.
From a computer in the same IP subnet as the access point, enter the default IP address of the access point in a web browser. ******TRUE
Modify the TCP/IP properties of the computer connected to the access point so that it exists on the same network, and then reboot your computer to establish a connection.

51
Top of Form
What two methods can be used to remove MAC address table entries from a switch? (Choose two.)
The clear switching-tables command will remove statically configured entries.
The clear mac-address-table command will remove statically and dynamically configured table entries. ******TRUE
The erase flash command will clear all statically configured table entries.
Statically configured MAC addresses will automatically be removed from the address table 300 minutes after the last activity on a switch port.

52


What are two benefits of the IEEE 802.11n standard over the IEEE 802.11G? (Choose two.)
requires less equipment
provides improved range ******TRUE
permits increased data rates ******TRUE
has a single-input and a single-output
needs no hardware upgrade for compatibility
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http://www.4shared.com/file/69229433/fd20d965/CCNA_1_Final_15-10-08.html
http://www.4shared.com/file/76400793/eefa0036/Final_CCNA1v4_1001.html

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http://www.4shared.com/file/77494491/26b721d1/CCNA2_Final--1.html
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http://www.4shared.com/file/71199661/63dc9524/S3FINALCCNA4.html

CCNA4 FINAL:

http://www.4shared.com/file/74822217/1711c675/CCNA4_FINAL.html
http://www.4shared.com/file/67519931/116c1a2f/CCNA4_FINAL_100.html

(New new new March 6th 2009 -- when i free time i will answer)
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CCENT Practice Certification Exam # 1 - CCNA Exploration: Accessing the WAN (Version 4.0)

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CCENT Practice Certification Exam # 1 - CCNA Exploration: Accessing the WAN (Version 4.0)

1. What are two ways that TCP uses the sequence numbers in a segment? (Choose two.)

	to identify missing segments at the destination
	to reassemble the segments at the remote location
	to specify the order in which the segments travel from source to destination
	to limit the number of segments that can be sent out of an interface at one time
	to determine if the packet changed during transit

2. Which three statements characterize UDP? (Choose three.)

	UDP provides connectionless, fast transport of data at Layer 4.
	UDP provides connection-oriented, fast transport of data at Layer 3.
	UDP relies on application layer protocols for error detection.
	UDP works well when an application does not need to guarantee delivery of data.
	UDP relies on IP for error detection and recovery.
	UDP provides sophisticated flow control mechanisms.

3. Refer to the exhibit. Host A sends a data packet to host B. What will be the addressing information of the data packet when it reaches host B? Refer to the exhibit. Host A sends a data packet to host B. What will be the addressing information of the data packet when it reaches host B?

4. Which layer of the OSI model defines logical addressing?

	application
	presentation
	session
	transport
	network
	data link

5. Which device connects a local LAN to a geographically separate network?

	switch
	hub
	router
	bridge

6. Refer to the exhibit. Router1 receives packets addressed as follows:



Source IP address: 192.168.1.88



Destination IP address: 172.16.0.3



Source MAC address: 00-11-12-7a-41-10



Destination MAC address: 00-11-5c-cc-a9-c0



Source Port: 1464



Destination Port: 23



Assuming that Router1 has not been configured with NAT, what will happen to the packets?

	The packets will be sent to the server because it is a server-based port.
	The packets will be sent to Switch2 and not leave the switch because the packets are local.
	The packets will be sent to the laptop host.
	The packets will be sent to Router1 and dropped because private addresses are not transmitted across the Internet.
	The packets will be sent to Router2 and dropped because the server is not directly attached.

7. Refer to the exhibit. If host 1 was to send an HTTP request to the web server that connects to Router2, what type of Layer 2 frame would be sent between Router1 and the ISP?

	a frame with a header that contains the port number of 80
	a frame with a header and trailer, but no MAC addresses
	a frame with a header and a trailer that only contains IP addresses
	a frame with the host 1 MAC address as the source and Router1 MAC address as the destination
	a frame with the host 1 MAC address as the source and the server MAC address as the destination

8. A company needs to connect an office router to a service provider to access a WAN. What device is needed to connect the router to the ISP if the service provider supplies a T1 line for the connection?

	a CSU/DSU
	a cable modem
	a DSL router
	a DTE device
	an SLA device

9. Refer to the exhibit. A technician applies the configuration in the exhibit to an unconfigured router. To verify the configuration, the technician issues the show running-config command in the CLI session with the router. What lines should the technician expect to see in the router output from the show running-config command?

	enable password class line console 0 password ccna
	enable secret cisco enable password class line console 0 password ccna
	enable secret 5 $1$v0/3$QyQWmJyT7zCa/yaBRasJm0 enable password class line console 0 password ccna
	enable secret cisco enable password 7 14141E0A1F17 line console 0 password 7 020507550A
	enable secret 5 $1$v0/3$QyQWmJyT7zCa/yaBRasJm0 enable password 7 14141E0A1F17 line console 0 password 7 020507550A

10. Refer to the exhibit. If host A sends an IP packet to host B, what will the destination address be in the frame when it leaves host A?

	DD:DD:DD:DD:DD:DD
	172.168.10.99
	CC:CC:CC:CC:CC:CC
	172.168.10.65
	BB:BB:BB:BB:BB:BB
	AA:AA:AA:AA:AA:AA

11. Refer to the exhibit. What two facts can be determined from the output of the ping command? (Choose two.)

	There was a destination unreachable error.
	The packet type was unknown.
	One packet timed out.
	The ping was interrupted.
	Four packets of data were successfully received.
	The packet TTL was exceeded.

12. Refer to the exhibit. The switches are in their default configuration. Host A needs to communicate with host D, but host A does not have the MAC address for its default gateway. Which network hosts will receive the ARP request sent by host A?

	only host D
	only router R1
	only hosts A, B, and C
	only hosts A, B, C, and D
	only hosts B and C
	only hosts B, C, and router R1

13. Refer to the exhibit. Which password will the administrator need to use on this device to enter privileged EXEC mode?

	Cisco
	class
	password
	cisco

14. Refer to the exhibit. Switch1 has only the following commands added to a default Cisco 2960 configuration:



enable secret cisco



line vty 0 4



password Kn0ckkn-cK



login



interface vlan 1



ip address 10.0.1.8 255.255.255.0



no shutdown



Assume that routing between networks is functioning properly and that Switch2 has been properly configured for remote access. What would the result be if the telnet 10.0.2.2 command is issued from Switch1 privileged mode?

	The following prompt would appear: User Access Verification Password:
	Switch2 would return a destination unreachable message to Switch1.
	Router1 would return a destination unreachable message to Switch1.
	The packet would be dropped.

15. What caused the following error message to appear?



01:11:12: %PM-4-ERR_DISABLE: psecure-violation error detected on Fa0/8, putting Fa0/8 in err-disable state



01:11:12: %PORT_SECURITY-2-PSECURE_VIOLATION: Security violation occurred, caused by MAC address 0011.a0d4.12a0 on port FastEthernet0/8.



01:11:13: %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/8, changed state to down



01:11:14: %LINK-3-UPDOWN: Interface FastEthernet0/8, changed state to down

	Another switch was connected to this switch port with the wrong cable.
	An unauthorized user tried to telnet to the switch through switch port Fa0/8.
	NAT was enabled on a router, and a private IP address arrived on switch port Fa0/8.
	A host with an invalid IP address was connected to a switch port that was previously unused.
	Port security was enabled on the switch port, and an unauthorized connection was made on switch port Fa0/8.

16. When configuring a switch to use SSH for virtual terminal connections, what is the purpose of the crypto key generate rsa command?

	show SSH connected hosts
	disconnect SSH connected hosts
	create a public and private key pair
	show active SSH ports on the switch
	access the SSH database configuration

17. Which three statements are true about full-duplex operation on an Ethernet network? (Choose three.)

	There are no collisions in full-duplex mode.
	A dedicated switch port is required for each node.
	Hub ports are preconfigured for full-duplex mode.
	The host network card must detect the availability of the media before transmitting.
	The host network card and the switch port must both be in full-duplex mode.

18. Refer to the exhibit. If all the switches have a default configuration, how many broadcast domains are in the network?

	1
	2
	3
	4
	5
	14

19.

20. Refer to the exhibit. The devices have been configured with static IP addresses as shown. All hosts can communicate with each other but none of the hosts can communicate with the server. What is the cause of this problem?

	The IP address that is assigned to the server is in an incorrect subnet.
	The IP address that is assigned to the server is a broadcast address.
	The IP address that is assigned to the server is a network address.
	The switch to which the server is connected has not been assigned an IP address.
	The RouterB LAN interface is incorrectly addressed in the RouterA LAN subnet.

21. A network host has the IP address 10.250.206.55/20. How many more network devices can be added to this same subnetwork?

	253
	509
	1021
	2045
	4093

22. Which type of Network Address Translation allows a host on a public network consistent access to a specified private inside host?

	port-based NAT
	static NAT
	dynamic NAT
	NAT overload

23. Refer to the exhibit. Which two addresses are "inside global" addresses? (Choose two.)

	192.31.7.3
	64.40.1.5
	198.133.219.35
	192.31.7.2
	198.133.219.44
	64.40.1.4
	192.31.7.1

24. Which addresses are valid host IP addresses given the subnet mask 255.255.255.248? (Choose three.)

	192.168.200.87
	194.10.10.104
	223.168.210.100
	220.100.100.154
	200.152.2.160
	196.123.142.190

25. The router receives a packet with the destination address of 172.16.30.79/22. To which subnetwork does this packet belong?

	172.16.30.0/22
	172.16.30.64/22
	172.16.30.76/22
	172.16.28.0/22
	172.16.28.56/22
	172.16.0.0/22

26. Refer to the exhibit. What is the broadcast address for the subnetwork on which host A resides?

	10.255.255.255
	10.144.255.255
	10.149.255.255
	10.149.191.255
	10.159.255.255

27.

28. What can a network administrator modify on a router to specify the location from which the Cisco IOS loads? (Choose two.)

	system ROM
	the startup configuration file
	the system image file
	the configuration register value
	the NVRAM file system

29. Which two items are required for initial configuration of Cisco routers if the IOS command-line interface is used? (Choose two.)

	a crossover cable
	a rollover cable
	an RJ-15 to DB-9 adapter
	terminal emulation software
	router VTY port

30. Refer to the exhibit. The router named "myhome" has received a frame from the host 192.168.254.7. The contents of this frame are being sent to host 172.16.14.243. What is the Layer 2 destination address of the frame as it leaves the myhome router?

	0008.a3b6.ce05
	0009.1281.18a8
	000a.8a47.e612
	172.16.14.129
	172.16.14.243
	192.168.254.7

31. Refer to the exhibit. What two facts can be determined about the network from the exhibited output? (Choose two.)

	The MontegoBay router does not have any LAN interfaces configured.
	The Negril router is connected to the S0/1 interface of the MontegoBay router.
	There are only four devices in this network.
	Layer 3 is functioning properly on all routers.
	The MBSwitch is connected to the Negril, Lucia, and MontegoBay routers.
	Layer 2 is operational on three ports of the MontegoBay router.

32. Which set of commands is used to name a router and save the configuration?

	Router(config)# hostname South South(config)# copy running-config startup-config
	Router(config)# hostname South South(config)# exit South# copy running-config startup-config
	Router(config)# ip host South South(config)# copy running-config startup-config
	Router(config)# ip host South South(config)# exit South# copy running-config startup-config

33. Which command is used to create an encrypted password that restricts access to the privileged EXEC mode of a Cisco router?

	RouterA(config)# encrypted password cisco
	RouterA(config)# password encrypted cisco
	RouterA(config)# enable password cisco
	RouterA(config)# enable secret cisco
	RouterA(config)# service-password encryption cisco

34. Refer to the exhibit. A network administrator working at HostA has problems accessing the FTP server. Layer 3 connectivity testing was successful from HostA to the S0/0/1 interface of RouterB. Which set of commands will allow the network administrator to telnet to RouterB to check its status?

	RouterB(config)# enable secret class RouterB(config)# line vty 0 4 RouterB(config-if)# login
	RouterB(config)# enable secret class RouterB(config)# line vty 0 RouterB(config-line)# password cisco RouterB(config-line)# login
	RouterB(config)# enable secret class RouterB(config)# line aux 0 RouterB(config-line)# password cisco RouterB(config-line)# login
	RouterB(config)# enable secret class RouterB(config)# line aux 0 RouterB(config-vty)# password cisco RouterB(config-vty)# login

35. What is the purpose of using SSH to connect to a router?

	It allows a router to be configured using a graphical interface.
	It allows a secure remote connection to the router command line interface.
	It allows the router to be monitored through a network management application.
	It allows secure transfer of the IOS software image from an unsecure workstation or server.

36. Which two statements describe the command ip route 192.168.7.24 255.255.255.248 192.168.7.9? (Choose two.)

	A packet that is destined for host 192.168.7.30 will be forwarded to address 192.168.7.9.
	The address 192.168.7.9 is the destination network for this route.
	The address 192.168.7.24 is the next-hop router in this command.
	This command is issued from the interface configuration mode.
	This command is used to define a static route.

37. Which protocol is described as an enhanced distance vector routing protocol?

	RIP v1
	RIP v2
	EIGRP
	OSPF

38. Refer to the exhibit. A network administrator can successfully ping, using IP addresses, between router Jax and router Atlanta. However, when the command telnet Atlanta is entered from the Jax router, the Telnet connection fails. Which two reasons could be the cause of the failure? (Choose two.)

	The Jax router is not an entry in the host table of the Atlanta router.
	The Jax router does not have an entry for Atlanta in its host table.
	The hostname command is not configured correctly on the Atlanta router.
	The hostname command is not configured correctly on the Jax router.
	Access to a DNS server is not available.

39. From what two locations can a router load the Cisco IOS during the boot process? (Choose two.)

	RAM
	TFTP server
	NVRAM
	setup routine
	Flash memory
	terminal

40. Which two statements describe the functions or characteristics of ROM in a router? (Choose two.)

	stores routing tables
	allows software to be updated without replacing pluggable chips on the motherboard
	maintains instructions for POST diagnostics
	holds ARP cache
	stores bootstrap program

41. Which two statements correctly identify the function of router memory components? (Choose two.)

	RAM permanently stores the configuration file used during the boot sequence.
	ROM contains diagnostic self test procedures executed on hardware modules.
	NVRAM stores a backup copy of the IOS used during the boot sequence.
	Flash memory does not lose its contents when a router is powered off.
	ROM contains the most current and most complete version of the IOS.
	Flash contains boot system commands to identify the location of the IOS.

42. Which router component holds the routing table, ARP cache, and running configuration file?

	RAM
	Flash
	NVRAM
	ROM

43. Refer to the exhibit. A network administrator can ping the Denver router, but gets a 'Password Required but None Set' message when trying to connect remotely via Telnet. Which command or sequence of commands must be applied to the Denver router to allow remote access?

	Router(config)# line console 0 Router(config-line)# login Router(config-line)# password cisco
	Router(config)# line vty 0 4 Router(config-line)# login Router(config-line)# password cisco
	Router(config)# line virtual terminal Router(config-line)# enable login Router(config-line)# password cisco
	Router(config)# line vty 0 4 Router(config-line)# enable secret Router(config-line)# password cisco
	Router(config)# enable secret cisco
	Router(config)# enable cisco

44.

45. Which security method uses the Advanced Encryption Standard (AES)?

	MAC address filtering
	WEP
	WPA
	WPA2

46. What is the purpose of WEP?

	It encrypts data.
	It uniquely identifies a wireless network.
	It coordinates and accepts transmissions from wireless hosts.
	It provides information about a directly connected Cisco network device.

47. A company has an 802.11b wireless access point installed. Which type of wireless NIC is a valid standards-based one but will not work in this environment?

	802.11a
	802.11b
	802.11g
	802.11n

48.

49. A company has a sales team that travels with laptops. On Fridays, the sales members come into assigned cubicles and connect their laptop to the wired network. The company is concerned that unauthorized users could also connect to the network. What can be done to ensure that unauthorized laptops are not connected to the wired network?

	Implement SSH.
	Install WEP or WPA.
	Use switch port security.
	Clearly label the cubicle network port and the switch port.
	Configure usernames and passwords on the switch ports assigned to each cubicle.

50. Refer to the exhibit. For security reasons, information about the HQ R1 router model and IP address should not be accessible from the Site 2 R2 router. What security measure should be implemented?

	Install an IDS between R1 and R2.
	Install an IPS between R1 and R2.
	Install a firewall between R1 and R2.
	Disable CDP on the R1 interface that connects to R2.
	Disable any routing protocol used between R1 and R2 and install static routes.

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