Cisco CCNA Basic Switching Concepts Questions and Answers

Question 1

A switch receives a frame on its Fa0/1 interface.
The source MAC address is 0000.aaaa.aaaa and the destination MAC address is 0000.bbbb.bbbb.
The switch has no entry for 0000.bbbb.bbbb in its MAC address table.
What action will the switch take?

Accepted Answer

Forward the frame out of all interfaces except the originating port, Fa0/1.

Answer

Drop the frame.

Answer

Forward the frame out of all interfaces.

Answer

Send an ARP request to find the location of the destination MAC address.

Question 2

Which of the following is a primary benefit of using VLANs in a network?

Accepted Answer

To segment the network into multiple broadcast domains.

Answer

To increase the size of a collision domain.

Answer

To eliminate the need for routers.

Answer

To create a single, large broadcast domain.

Question 3

A network administrator is concerned about network latency and wants to ensure frames with errors are not propagated through the network. Which switching method should be used?

Accepted Answer

Store-and-Forward

Answer

Cut-Through

Answer

Fragment-Free

Answer

Fast-Forward

Question 4

In a switched network, how does a switch populate its MAC address table?

Accepted Answer

By examining the source MAC address of incoming frames.

Answer

By sending out discovery packets to all connected devices.

Answer

By examining the destination MAC address of incoming frames.

Answer

By manually configuring static entries for each device.

Question 5

A network consists of a single 24-port switch. All ports are operating in full-duplex mode. How many collision domains and broadcast domains exist in this network by default?

Accepted Answer

24 collision domains, 1 broadcast domain

Answer

1 collision domain, 24 broadcast domains

Answer

24 collision domains, 24 broadcast domains

Answer

1 collision domain, 1 broadcast domain

Question 6

What is the primary purpose of the Spanning Tree Protocol (STP) in a switched network?

Accepted Answer

To prevent Layer 2 switching loops.

Answer

To dynamically assign VLANs to switch ports.

Answer

To provide a mechanism for inter-VLAN routing.

Answer

To increase the speed of frame forwarding.

A switch receives a frame on its Fa0/1 interface.The source MAC address is 0000.aaaa.aaaa and the destination MAC address is 0000.bbbb.bbbb.The switch has no entry for 0000.bbbb.bbbb in its MAC address table.What action will the switch take?

A switch receives a frame on its Fa0/1 interface.
The source MAC address is 0000.aaaa.aaaa and the destination MAC address is 0000.bbbb.bbbb.
The switch has no entry for 0000.bbbb.bbbb in its MAC address table.
What action will the switch take?