VLANs

Which technology logically divides a switch into several broadcast domains ?

• Network

• Subnet

• VLAN

• Netmask

Which device is used to join VLANs together ?

• Router

• Switch

• Hub

• Firewall

Which one of the following statements is incorrect ?

• We can configure each switch port to be on a specific VLAN

• VLANs can cross multiple switches

• Trunk lines are used to carry tagged frames between switches

• All VLANs belong to the same broadcast domain

How many broadcast domains are there in the network ?

• one

• two

• three

• four

Which one of the following statements is incorrect ?

• A switch adds the tag when it goes onto the trunk line

• Switch at the receiving end removes the tag

• Routers pass tagged frames without altering it.

• End devices never see tagged frames

What mechanism does a router use to associate with a specific VLAN ?

• Subinterface

• Interface

• Ethernet

• Serial

What command is used to specify a trunk port ?

• vlan 10

• interface f0/0

• encapsulation dot1q 10

• switchport mode trunk

Which command is used to specify a subinterface for VLAN 10 on a router ?

• vlan 10

• encapsulation dot1q 10

• interface f0/0.20

• no shutdown

How many usable IP addresses are there in a network with a CIDR of /23 ?

• 512

• 511

• 510

• 509

How many usable IP addresses are there in a network with a mask of 255.255.252.0

• 1024

• 1023

• 1022

• 1021