CCNA Practice Quiz VLAN

1. Which of the followings are the major benefits of implementing virtual LAN? Choose any three.

1. It breaks down a single broadcast domain into multiple broadcast domains.
2. It enhances network security.
3. It increases the size of the collision domain.
4. It allows the logical grouping of users by functions.

Answer

2. Refer to the exhibit.

How many broadcast domains are available in the given network considering the whole network existing in a single VLAN?

1. one broadcast  domain, one collision domain
2. two broadcast domains, one collision domain
   
3. two broadcast domains, five collision domains
4. one broadcast domain, three collision domains

Answer

Answer: Option D

Explanation: The correct option is D.

3. Which of the following event will occur, if you assign the switch port access command to VLAN, without creating that VLAN separately?

1. The CLI treats it as the invalid command
2. The switch will create VLAN and assign an access port to the VLAN.
3. The port will be disabled until we create a VLAN with a separate command.
4. All VLANs exist by default.

Answer

4. You have not created any VLAN on a new switch. How many VLAN will be displayed by issuing a show VLAN brief command to the switch?

1. 0
2. 1
3. 5
4. 8

Answer

1. access port
2. trunk port
3. both of them
4. None of them

Answer

1. access port
2. trunk port
3. both of them
4. None of them

Answer

7. Which of the following are the VLAN trunking protocols? Choose two.

1. 802.1q
2. 802.1d
3. 802.1w
4. ISL

Answer

8. Which of the following  statements are true regarding IEEE 802.1q tag?

1. 802.1q tag is 32 bits in length (4bytes).
2. It is placed between the source and the type/length field of the ethernet header frame.
3. It comprises of two fields: TPID and TCI
4. All of the above

Answer

1. 0x4000
2. 0x2000
3. 0x5000
4. 0x8000

Answer

1. 4 bits
2. 8 bits
3. 12 bits
4. 16 bits

Answer

11. What is the valid range of VLAN Ids?

1. 0 – 4095
2. 1 – 4094
3.  0- 2047
4. 1 – 2046

Answer

12. What is the range of normal VLAN IDs?

1. 0 to 1004
2. 1 to 1005
3. 1006 to 4094
4. 1006 to 4095

Answer

0 to 1005

1 to 1005

1006 to 4095

1006 to 4094

Answer

1. The feature of Native VLAN is available only in 802.1q, not in ISL.
2. By default, the native VLAN is always VLAN1
3. 802.1q tag is not added in native VLAN.
4. all of the above

Answer

15. What is the acronym for VTP?

1. Virtual Tunneling Protocol
2. Virtual Trunking Protocol
3. Vital Trunking Protocol
4. Vital Tunneling Protocol

Answer

16. The full form of TPID is ___________.

1. Tag Protocol Identifier
2. Tagged Packet Identifier
3. Trunk Protocol Identifier
4. Trunk Packet Identifier

Answer

1. ISL is the Cisco proprietory.
2. ISL frame encapsulation isbofb30 bytes length that includes 26 bytes of header and 4 bytes of frame check sequence (FCS)
3. ISL does not provide Native VLAN configuration
4. All of the above

Answer

18. A network administrator is trying to configure the trunk interface of a Cisco gigabit port with a command switch port mode trunk. But the command is rejected. What command he is missing?

1. switchport mode trunk interface
2. switchport trunk encapsulation dot1q
3. switchport trunk encapsulation 802.1q
4. switchport trunk encapsulation auto

Answer

19. What will happen if you issue the following command to the Cisco catalyst switch?

switchport mode trunk native VLAN 999

1. it will create VLAN 999 interface.
2. it will block VLAN 999 frames passing through the trunk.
3. it will designate VLAN 999 for untagged traffic.
4. it will designate VLAN 999 as the default for all untagged traffic.

Answer

20. Which of the following command will configure the interface of a Cisco layer 3 switches as the routed port?

1.  switchport mode route
2. IP routing
3. no switchport
4. enable routed port

Answer