14 - VLANs Part 2

Question 1

802.1Q tag: The […] field identifies the VLAN the frame belongs to.

Answer 1

VID

Question 2

802.1Q tag: The […] field indicates that a frame can be dropped if the network is congested.

Answer 2

DEI

Question 3

802.1Q tag: The […] field is use for Class of Service.

Answer 3

PCP

Question 4

802.1Q tag: The DEI field is […] in length.

Answer 4

1 bit

Question 5

802.1Q tag: The PCP field is […] bits in length.

Answer 5

3

Question 6

802.1Q tag: The TPID field is […] bits in length.

Answer 6

16

Question 7

802.1Q tag: The TPID field is alway set to a value of […]

Answer 7

0x8100

Question 8

802.1Q tag: What does DEI stand for?

Answer 8

Drop Eligible Indicator

Question 9

802.1Q tag: What does PCP stand for?

Answer 9

Priority Code Point

Question 10

802.1Q tag: What does TPID stand for?

Answer 10

Tag Protocol Identifier

Question 11

802.1Q tag: What does VID stand for?

Answer 11

VLAN ID

Question 12

Configure the allowed VLANs on a trunk port:
SW1(config-if)# […]

Answer 12

switchport trunk allowed vlan <allowed-vlans></allowed-vlans>

Question 13

Configure the encapsulation type on a trunk port:
SW1(config-if)# […]

Answer 13

switchport trunk encapsulation <encapsulation-type></encapsulation-type>

Question 14

Configure the interface as a trunk port:
SW1(config-if)# […]

Answer 14

switchport mode trunk

Question 15

Configure the native VLAN on a trunk port:
SW1(config-if)# […]

Answer 15

switchport trunk native vlan <vlan-number></vlan-number>

Question 16

Configure the VLAN number on a router subinterface:
R1(config-subif)# […]

Answer 16

encapsulation dot1q vlan-number

Question 17

Display all trunk ports on the switch:
SW1# […]

Answer 17

show interfaces trunk

Question 18

For security purposes, it is best to change the native VLAN to an […] VLAN.

Answer 18

unused

Question 19

ROAS involves configuring VLAN tags and IP addresses on router […].

Answer 19

subinterfaces

Question 20

The 802.1Q tag is […] bytes in length.

Answer 20

4

Question 21

The 802.1Q tag is inserted after the […] field of the Ethernet header.

Answer 21

Source MAC Address

Question 22

The default native VLAN is VLAN […] on all trunk ports.

Answer 22

1

Question 23

The Extended VLAN range is […] to […]

Answer 23

1006 to 4094

Question 24

The Normal VLAN range is […] to […]

Answer 24

1 to 1005

Question 25

The range of usable VLANs is [...] to [...]

Answer 25

1 to 4094

Question 26

The switch does not add an 802.1Q tag to frames in the [...] VLAN over a trunk link.

Answer 26

native

Question 27

VLANs [...] and [...] are reserved and cannot be used.

Answer 27

0 / 4095

Question 28

VLANs: [...] ports are known as 'tagged' ports.

Answer 28

trunk

Question 29

VLANs: [...] ports are known as 'untagged' ports.

Answer 29

Access

Question 30

VLANs: Switches will tag frames sent out of [...] ports with a VLAN number.

Answer 30

trunk

Question 31

What is a Cisco proprietary VLAN trunking protocol?

Answer 31

ISL (Inter-Switch Link)

Question 32

What is an industry standard VLAN trunking protocol?

Answer 32

IEEE 802.1Q (dot1q)

Question 33

When a switch receives an untagged frame on a trunk port, it assumes the frame belongs to the [...] VLAN.

Answer 33

native