Quiz

Question 1

Examine the show command output below. How many secure MAC addresses were dynamically learned on the interface?

1. 0

2. 1

3. 3

4. 4

Solution

3. 3

Question 2

Which of the following occur when a port-security violation occurs in restrict mode? (select the two best answers)

1. The interface is put in a err-disabled state.

2. Unauthorized traffic is discarded.

3. All traffic is discarded.

4. An SNMP Get message is sent.

5. The violation counter is incremented.

6. The violation counter is not incremented.

Solution

2. Unauthorized traffic is discarded.

5. The violation counter is incremented.

Question 3

Examine the following output. What will SW1 do when an unauthorized frame arrives on G0/1?

1. Unauthorized traffic will be dropped.

2. All traffic will be dropped.

3. G0/1 will be err-disabled.

4. The source MAC address will be learned as normal.

Solution

1. Unauthorized traffic will be dropped.

Question 4

Which of the following will re-enable an interface that was disabled by port-security? (select the two best answers)

1. shutdown and then no shutdown on the interface

2. errdisable recovery cause psecure-violation in global config mode.

3. Unplugging the unauthorized device

4. switchport port-security aging static on the interface.

Solution

1. shutdown and then no shutdown on the interface

2. errdisable recovery cause psecure-violation in global config mode.

Question 5

Examine the following output. What will happen when the switchport port-security command is issued on G0/1?

1. The command will be accepted.

2. The command will be rejected.

Solution

1. The command will be accepted.