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66.
If a switch has ten VLANs defined and active, how many instances of STP will run using PVST+ versus CST?
- A.1 for PVST+, 1 for CST
- B.1 for PVST+, 10 for CST
- C.10 for PVST+, 1 for CST
- D.10 for PVST+, 10 for CST
- Answer & Explanation
- Report
Answer : [C]
Explanation :
Explanation :
67.
Which of the following is the Spanning Tree Protocol that is defined in the IEEE 802.1Q standard?
- A.PVST
- B.CST
- C.EST
- D.MST
- Answer & Explanation
- Report
Answer : [B]
Explanation :
Explanation :
68.
What is the default “hello” time for IEEE 802.1D
- A.1 second
- B.2 seconds
- C.30 seconds
- D.60 second
- Answer & Explanation
- Report
Answer : [B]
Explanation :
Explanation :
69.
MAC addresses can be placed into the CAM table, but no data can be sent or received if a switch port is in which of the following STP states?
- A.Blocking
- B.Forwarding
- C.Listening
- D.Learning
- Answer & Explanation
- Report
Answer : [D]
Explanation :
Explanation :
70.
What mechanism is used to set STP timer values for all switches in a network?
- A.Configuring the timers on every switch in the network
- B.Configuring the timers on the root bridge switch.
- C.Configuring the timers on both primary and secondary root bridge switches
- D.The timers cannot be adjusted.
- Answer & Explanation
- Report
Answer : [B]
Explanation :
Explanation :
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