CCNA 3 - Switching Basics and Intermediate Routing (V3.1)

CCNA 3 Final Exam Answers V3.1


CCNA 3 Final Exam Answers V3.1 (1)
Refer to the graphic. What is the most efficient summarization of the routes attached to router RT-5?



CCNA 3 Final Exam Answers V3.1 (2)
Refer to the exhibit. Which sequence of commands is required to configure switch port Fa0/2 for host A?

SW-1(config)# interface vlan 20
SW-1(config-if)# switchport mode access 20

SW-1(config)# interface fastethernet 0/2
SW-1(config-if)# switchport mode access
SW-1(config-if)# switchport access vlan 20

SW-1(config)# interface fastethernet 0/2
SW-1(config-if)# vlan 20

SW-1(config)# interface vlan 20
SW-1(config-if)# switchport mode trunk

CCNA 3 Module 9 V3.1 Answers

1. A router has two serial interfaces and two FastEthernet interfaces. It needs to connect to a wide area link to the main office and to four VLANs in the local network. How can this be accomplished in the most efficient manner?

Connect a trunked uplink from the switch to a router FastEthernet interface and create logical subinterfaces for each VLAN.

Use a hub to connect the four VLANS with a FastEthernet interface on the router.

Two additional FastEthernet interfaces are required to interconnect the VLANs.

Use serial to FastEthernet transceivers to connect two of the VLANs to the router. Attach the other two VLANs directly to the available FastEthernet ports.

Add a second router to handle the inter-VLAN traffic.



CCNA 3 Module 9 V3.1 Answers (1)
The switches in the diagram are connected with trunks within the same VTP management domain. Each switch is labeled with its VTP mode. A new VLAN is added to Switch3. This VLAN does not show up on the other switches. What is the reason for this?

VLANs cannot be created on transparent mode switches.

Server mode switches neither listen to nor forward VTP messages from transparent mode switches.

VLANs created on transparent mode switches are not included in VTP advertisements.

There are no ports assigned to the new VLAN on the other switches.

Transparent mode switches do not forward VTP advertisements.

CCNA 3 Module 8 V3.1 Answers

CCNA 3 Module 8 V3.1 Answers

1. Which approach to assigning VLAN membership maximizes forwarding performance?

membership by MAC address

membership by logical address

membership by protocol

membership by port

membership by operating system


2. What are the characteristics of VLAN1 in a default switch configuration? (Choose three.)

CDP messages are only sent on VLAN1.

VLAN1 is reserved for links between switches.

All switch ports are members of VLAN1.

VLAN1 must be created before ports can be assigned to it.

Only switch port 0/1 is assigned to VLAN1.

An IP address configured on the switch will only apply to ports on VLAN1.

CCNA 3 Module 7 V3.1 Answers

CCNA 3 Module 7 V3.1 Answers

1. Which of the following describe the BIDs used in a spanning tree topology? (Choose two.)

They are sent out by the root bridge only after the inferior BPDUs are sent.

They consist of a bridge priority and MAC address.

Only the root bridge will send out a BID.

They are used by the switches in a spanning tree topology to elect the root bridge.

The switch with the fastest processor will have the lowest BID.


2. Which algorithm is used to create a loop free switched topology?

Spanning Tree

Shortest Path First


Rapid Tree


CCNA 3 Module 6 V3.1 Answers

1. A new policy for disaster recovery requires copying all critical network configurations and operating systems to a backup server that will be stored offsite. Which command will create a backup of the switch IOS image on the server?

Switch# copy tftp NVRAM

Switch# copy running-config tftp

Switch# copy flash tftp

Switch# copy IOS tftp

Switch# copy tftp flash

Switch# copy NVRAM tftp


2. Which commands can be used to change from Global Configuration mode to Privileged EXEC mode? (Choose three.)






CCNA 3 Module 4 V3.1 Answers

CCNA 3 Module 4 V3.1 Answers

1. Which statements are true concerning the shared memory buffering used by an Ethernet switch? (Choose two.)

Frames are processed through a single queue.

All frames are placed in a common memory buffer.

Frames are placed in a queue for the destination port.

A port with a full memory buffer can cause frames for available ports to be delayed.

Each switch port is statically assigned a buffer of equal size.


2. What are the functions of routers? (Choose three.)

improving network performance by increasing latency by twenty to thirty percent

segmenting broadcast domains

forwarding packets based on destination network layer addresses

segmenting collision domains

forwarding packets as soon as the destination MAC address is read

developing routing table entries based on source IP addresses

CCNA 3 Module 3 V3.1 Answers

CCNA 3 Module 3 V3.1 Answers

1. Which Layer 4 protocol does EIGRP use to provide reliability for the transmission of routing information?








2. Which of the following statements describes the bounded updates used by EIGRP?

Bounded updates are sent to all routers within an autonomous system.

Partial updates are sent only to routers that need the information.

The updates are sent to all routers in the routing table.

Updates are bounded by the routers in the topology table.

CCNA 3 Module 2 V3.1 Answers

CCNA 3 Module 2 V3.1 Answers

1. What does OSPF use to calculate the cost to a destination network?


bandwidth and hop count

bandwidth and reliability

bandwidth, load, and reliablity


2. Which of the following should be considered when troubleshooting a problem with the establishment of neighbor relationships between OSPF routers? (Choose three.)

OSPF interval timers mismatch

gateway of last resort not redistributed

interface network type mismatch

no loopback interface configured

administrative distance mismatch

inconsistent authentication configuration

CCNA 3 Module 1 V3.1 Answers

1. Which of the following are contained in the routing updates of classless routing protocols? (Choose two.)

32-bit address

next hop router interface

subnet mask

unicast host address

Layer 2 address



CCNA 3 Module 1 V3.1 Answers (1)
Router1 and Router2 shown in the topology have been configured with the no ip subnet-zero command. Which of the following valid VLSM network numbers could be used for the serial link between Router1 and Router2? (Choose two.)