Day 34

1. Extended VLANs are numbered from ___ to ____, inclusive.

1001 to 4094

1006 to 4094

1000 to 4099

1006 to 4095

Question 1 of 18

2. Default STP port cost for a 100Mbps interface is?

100

255

Question 2 of 18

3. By default, PAgP packets are sent between EtherChannel-capable ports in order to negotiate the forming of an EtherChannel. These packets are sent to the destination Multicast MAC address ________, which is also the same Multicast address that is used by CDP, UDLD, VTP, and DTP.

01-00-0C-CC-CC-CC

01-0A-0C-CC-CC-CC

00-00-0C-CC-CC-CC

01-CC-0C-CC-CC-CC

Question 3 of 18

4. LACP supports which two modes?

primary and secondary

auto and desirable

active and passive

master and slave

Question 4 of 18

5. Port Fast disables Spanning Tree on the port it is configured on.

True

False

Question 5 of 18

6. During STP root bridge election, traffic is still forwarded over switches in the STP domain.

False

True

Question 6 of 18

7. If you want to configure Extended VLANs, you must put the switch into VTP server mode.

True

False

Question 7 of 18

8. To debug STP traffic use the command?

debug stp

debug layer 2

debug spanning-tree events

debug spanning tree

Question 8 of 18

9. STP timers for Hello - Forward Delay - Max Age are?

20-15-2

2-15-20

15-20-2

Question 9 of 18

10. If authenticated, the port will transition to “_______” and the supplicant will be able to forward packets to the network.

secured

admitted

authenticated

authorized

Question 10 of 18

11. In the event of a tie for STP root port election, what is the order used for tiebreakers?

1. Lowest Root Bridge ID

2. Lowest Root path cost to Root Bridge

3. Lowest sender Bridge ID

4. Lowest sender Port ID

1324

4321

2341

1234

Question 11 of 18

12. The primary purpose of the Designated Port is to?

Improve security

Prevent loops

Increase throughput

Improve convergence

Question 12 of 18

13. When a Non-Root Bridge receives a Configuration BPDU on its Root Port, which is the port that provides the best path to the Root Bridge, it sends an updated version of the BPDU via its Root Port(s).

True

False

Question 13 of 18

14. Switch EtherChannels using PAgP may be configured to operate in one of two modes: ___ or _____.

master or slave

auto or desirable

passive or active

primary or secondary

Question 14 of 18

15. The default bridge priority for Cisco switches is?

32768

16384

255

Question 15 of 18

16. Switches determine the best Configuration BPDU based on the following four factors. Sort the list into the correct order.

Lowest sender Bridge ID
Lowest Root Bridge ID
Lowest sender Port ID
Lowest Root path cost to Root Bridge

Question 16 of 18

17. Explain Root Guard.

Prevents a port from becoming a blcking port.

Prevents a port from becoming a forwarding port.

Prevents a port from becoming a root port.

Prevents a port from becoming a designated port.

Question 17 of 18

18. _______ BPDUs are sent by LAN switches and are used to communicate and compute the Spanning Tree topology.

Configuration

Update

Exchange

Topology

Question 18 of 18

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