Chapter 2: VLANS

Question 1

What is the range for Ethernet VLANs supported in VTP 3?

Answer 1

1025 - 4094

Question 1

Trunking is used to extend what layer of operations across an entire network.

Answer 1

2

Question 1

True or False: It is important to have the same native VLAN on both switch link partners for ISL

Answer 1

True

Question 3

Traffic from a local VLAN is routed at the which two layers?

Answer 3

Core and Distribution

Question 3

True or False: Token Ring support is available in VTP version 1.

Answer 3

False

Question 4

True or False: Hosts that are members of different community VLANs can communicate to each other but not to members of isolated VLANs.

Answer 4

True

Question 5

Which prompt indicates that you are in VLAN configuration mode of Cisco IOS?

Answer 5

Switch(config-vlan)#

Question 5

Which switch port mode unconditionally sets the switch port to access mode regardless of any other DTP configurations?

Answer 5

Access

Question 6

Which VTP mode cannot create, edit, or delete VLANs?

Answer 6

Client

Question 7

__________ are contained within VLANs?

Answer 7

Broadcasts

Question 7

To configure the interface as a Layer 2 trunk you would use what command?

Answer 7

Switch(config-if)# switchport mode {dynamic {auto | desirable} | trunk}

Question 7

VTP advertisements are sent as what type of frames?

Answer 7

Multicast frames

Question 7

Catalyst6500-IOS# show run interface gigabitEthernet 3/9 Building configuration... Current configuration : 137 bytes ! interface GigabitEthernet3/9 mtu 9216 no ip address switchport switchport access vlan 5 switchport trunk encapsulation dot1q end

If the interface negotiates trunking, what would be the Native VLAN?

Answer 7

VLAN 1

Question 8

A switch issues a VTP advertisement request in what three situations?

Answer 8

1. The switch has been reset.
2. The VTP domain name has been changed.
3. The switch has received a VTP summary advertisement with a higher configuration revision than its own.

Question 9

How should End-to-End VLANS be distributed throughout the network?

Answer 9

geographically

Question 10

What is the range for Ethernet VLANs supported in all versions of VTP?

Answer 10

1, 2 - 1001

Question 10

True or False: The Cisco Catalyst 6500 supports up to 1024 VLANs in the most recent software releases.

Answer 10

False

Question 11

Which command correctly sets the VTP version to version 1 in Cisco IOS global configuration mode?

Answer 11

no vtp version 2

Question 13

When using Local VLANS, you should avoid using what?

Answer 13

VTP

Question 14

Which trunking protocol is nearly obsolete, and adds 30 bytes of overhead?

Answer 14

ISL

Question 16

A ____ is a logical group of end devices?

Answer 16

VLAN

Question 17

The three pVLAN port types are?

Answer 17

1. Isolated
2. Promiscuous
3. Community

Question 19

What carries the traffic for multiple VLANs across a single physical link?

Answer 19

Trunks

Question 21

To select the encapsulation type, you use what command?

Answer 21

Switch(config-if)# switchport trunk encapsulation {isl | dot1q | negotiate}

Question 22

What are the types of VLANS you should separate?

Answer 22

Voice, Data, Management, Native, default, and Black Hole

Question 23

Which command correctly configures a port with ISL encapsulation in Cisco IOS?

Answer 23

``` Switch(config-if)# switchport trunk encapsulation isl ```

Question 25

Layer _ devices interconnect VLANs?

Answer 25

3

Question 26

To specify the native VLAN you would use what command?

Answer 26

``` Switch(config-if)# switchport trunk native vlan vlan-id ```

Question 27

What is the default VTP mode for a Catalyst switch?

Answer 27

Server

Question 28

802.1Q uses an internal tagging mechanism, where a tag is inserted after the _____ field.

Answer 28

SA

Question 29

How does implementing VLANs help improve the overall performance of the network?

Answer 29

By constraining broadcast traffic

Question 30

The three message types for VTP are?

Answer 30

1. Summary Advertisements 2. Subset Advertisements 3. Advertisement Requests

Question 31

According to best practice, you should configure how many VLANs per access module?

Answer 31

1 - 3

Question 32

Which command correctly sets the native VLAN to VLAN 5?

Answer 32

``` switchport native trunk vlan 5 ```

Question 33

What information is contained in the FCS of an ISL-encapsulated frame?

Answer 33

CRC calculation

Question 35

VTP Advertisements are sent every _ minutes?

Answer 35

5

Question 36

After you complete the VTP configuration, which command should you use to verify your configuration?

Answer 36

``` show vtp status ```

Question 37

Which VLAN number should you avoid using as the "black hole" VLAN?

Answer 37

VLAN 1

Question 38

In a Local VLAN configuration, switches are configured in VTP __________ mode

Answer 38

Transparent

Question 39

What standard specifies how switces should handle untagges frames?

Answer 39

802.1Q

Question 40

True or False: When removing the native VLAN from a trunk port, CDP, Port Aggregation Protocol (PAgP), and DTP then use the lowest-numbered VLAN to send traffic.

Answer 40

False

Question 42

How should local VLANS be distributed throughout the network?

Answer 42

physical boundaries

Question 43

When is a consistency check performed with VTP version 2?

Answer 43

. When you enter new information through the CLI or SNMP