Packet Forwarding Layer2

Question 1

Front

Answer 1

Back

Question 2

Display the total number of MAC addresses in the switch’s MAC table: SW1# […]

Answer 2

show mac address-table count

Question 3

Display the status of MAC address learning: SW1# […]

Answer 3

show mac address-table learning

Question 4

Display the MAC address aging time: SW1# […]

Answer 4

show mac address-table aging-time

Question 5

Display the MAC address table: SW1# […]

Answer 5

show mac address-table

Question 6

Configure a static MAC address table entry: SW1(config)# […]

Answer 6

mac address-table static mac-address vlan vlan {interface interface | drop}

Question 7

Dynamic MAC address learning is [enabled/disabled] on all VLANs by default.

Answer 7

enabled

Question 8

The default aging time of dynamic MAC addresses is [time].

Answer 8

300 seconds (5 minutes)

Question 9

What action does a switch take when it receives a multicast frame?

Answer 9

Flood (by default)

Question 10

What action does a switch take when it receives a broadcast frame?

Answer 10

Flood

Question 11

What action does a switch take when it receives an unknown unicast frame?

Answer 11

Flood

Question 12

What action does a switch take when it receives a known unicast frame?

Answer 12

Forward out of the appropriate port

Question 13

Devices connected to a switch operate in […]-duplex.

Answer 13

full

Question 14

Devices connected to a hub operate in […]-duplex.

Answer 14

half

Question 15

Switches [can/can’t] buffer frames.

Answer 15

can

Question 16

Hubs [can/can’t] buffer frames.

Answer 16

can’t

Question 17

Are hubs Layer 2 aware?

Answer 17

No

Question 18

Communications using Thinnet or Thicknet are […]-duplex.

Answer 18

half

Question 19

A […] is a network segment where simultaneous data transmissions will collide.

Answer 19

collision domain

Question 20

[…] is also known as 10BASE-5.

Answer 20

Thicknet

Question 21

[…] is also known as 10BASE-2.

Answer 21

Thinnet

Question 22

[…] and […] involve connecting all devices in the LAN to a single coaxial network cable.

Answer 22

Thinnet / Thicknet

Question 23

Clear dynamic MAC addresses from the MAC address table: SW1# […]

Answer 23

clear mac address-table dynamic

Question 24

Enable [or disable] MAC address learning for a VLAN: SW1(config)# […]

Answer 24

[no] mac address-table learning vlan vlans

Question 25

Disable the MAC address aging timer: SW1(config)# [...]

Answer 25

mac address-table aging-time 0

Question 26

Configure the MAC address aging timer: SW1(config)# [...]

Answer 26

mac address-table aging-time time