Switches

Question 1

Internal Switching process (ordered by Latency)

Answer 1

1. cut-through = (frame experience minimum latency) Forwards the frame as soon as the destination address field in the frame header is received.
2. fragment-free = works on the premise that collisions are detected within the first 64 bytes of a frame.
3. store and forward = is the type of switching process that requires a switch to wait until the entire frame is received before forwarding it to the destination port.

Question 2

Each Router interface makes a ________ Domain and each switch interface creates a __________ domain.

Answer 2

Each Router interface makes a BROADCAST Domain and each switch interface creates a COLLISION domain.

Question 3

What protocol defines the media access control mechanism in which the transmitting station waits for a random time interval before transmitting a frame when there is a collision.

Answer 3

CSMA/CD = Carrier Sense Multiple Access / Collision Detection.

Question 4

Which multicast feature in a switch helps control the multicasts?

Answer 4

Internet Group management Protocol (IGMP)

Question 5

Which protocol does a switch use in order to create a loop free environment.

Answer 5

Spanning Tree Protocol (STP)

Question 6

On the basis of which address does a switch make forwarding and filtering decisions?

Answer 6

(MAC) Media Access Control address.

Question 7

What should be configured on a switch in order to telnet into the switch?

Answer 7

IP address.

Question 8

IOS command used to view VLAN and instance mapping information.

Answer 8

show spantree mapping

Question 9

Term used for a switch with the lowest bridge ID in the Spanning Tree Protocol (STP)

Answer 9

root bridge

Question 10

Which mode will a Cisco catalyst switch enter if there is not startup configuration file in the NVRAM?

Answer 10

initial configuration dialogue mode.

Question 11

Which show command is used to display the status of port security on the specified interface of a Catalyst switch?

Answer 11

show port-security [interface interface-id | address] command

Question 12

Which command is used to copy current configuration in the RAM to NVRAM?

Answer 12

The

copy running-configuration startup-configuration

Command.

Question 13

Which interface configuration command used in conjunction with the switchport port-security command configures the maximum number of MAC addressess allowed on this interface

Answer 13

The
switchport port-security maximum mac_addrs

Command