CCNP Composite(642-892) Hotspot 1 - Super HSRP question

- DS1( Distribute switch 1) is the primary device for Vlan 101, 102, 105
- DS2 ( Distribute switch 2) is the primary device for Vlan 103 and 104

Question 1:

During routine maintenance, it became necessary to shutdown G1/0/1 on DS1. All other interface were up. During this time, DS1 remained the active device for Vlan 102's HSRP group. You have determined that there is an issue with the decrement value in the track command in Vlan 102's HSRP group. What need to be done to make the group function properly ?

A. The DS1's decrement value should be configured with a value from 5 to 15
B. The DS1's decrement value should be configured with a value from 9 to 15
C. The DS1's decrement value should be configured with a value from 11 to 18
D. The DS1's decrement value should be configured with a value from 195 to less than 205
E. The DS1's decrement value should be configured with a value from 200 to less than 205
F. The DS1's decrement value should be greater than 190 and less 200

Explanation:

Use "show run" command to show. The left Vlan102 is console1 of DS1. Priority value is 200, we should decrement value in the track command from 11 to 18. Because 200 - 11 = 189 < 190 ( priority of Vlan102 on DS2 ).

Question 2:

During routine maintenance, G1/0/1 on DS1 was shutdown. All other interface were up. DS2 became the active HSRP device for Vlan101 as desired. However, after G1/0/1 on DS1 was reactivated. DS1 did not become the active HSRP device as desired. What need to be done to make the group for Vlan101 function properly ?

A. Enable preempt on DS1's Vlan101 HSRP group
B. Disable preempt on DS1's Vlan101 HSRP group
C. Decrease DS1's priority value for Vlan101 HSRP group to a value that is less than priority value configured on DS2's HSRP group for Vlan101
D. Decrease the decrement in the track command for DS1's Vlan 101 HSRP group to a value less than the value in the track command for DS2's Vlan 101 HSRP group.

Explanation:

A is correct. All other answers is incorrect. Because Vlan101 on DS1 ( left ) disable preempt. We need enable preempt to after it reactive , it will be active device. If not this command, it never become active device.

Question 3:

DS2 has not become the active device for Vlan103's HSRP group even though all interfaces are active. As related to Vlan103's HSRP group. What can be done to make the group function properly ?

A. On DS1, disable preempt
B. On DS1, decrease the priority value to a value less than 190 and greater than 150
C. On DS2, increase the priority value to a value greater 241 and less than 249
D. On DS2, increase the decrement value in the track command to a value greater than 10 and less than 50.

Explanation:

( update soon ....)

Question 4:

If G1/0/1 on DS1 is shutdown, what will be the current priority value of the Vlan105's group on DS1 ?

A. 95
B. 100
C. 150
D. 200

Explanation:

Priority is configured 150, Track is 55. So, if shutdown interface G1/0/1 --> 150 - 55 = 95.

Question 5:

What is the configured priority value of the Vlan105's group on DS2 ?

A. 50
B. 100
C. 150
D. 200

Explanation:

Use "show stantby brieft" command on console2 . Very easy to see priority of Vlan105 is 100.

Question 6:

During routine maintenance, it became necessary to shutdown G1/0/1 on DS1 and DS2. All other interface were up. During this time, DS1 became the active device for Vlan104's HSRP group. As related to Vlan104's HSRP group. What can be done to make the group function properly ?

A. On DS1, disable preempt
B. On DS2, decrease the priority value to a value less than 150
C. On DS1, increase the decrement value in the track command to a value greater than 6
D. On DS1, disable track command.

Explanation:

We should NOT disable preempt on DS1. By do that, you will make Vlan104's HSRP group fail function. Example: if we are disable preempt on DS1. It can not become active device when G1/0/1 on DS2 fail. In this question, G0/1/0 on DS1 & DS2 is shutdown. Vlan104 (left) : 150 - 1 = 149. Vlan104 (right) : 200 - 155 = 145. Result is priority 149 > 145 ( Vlan104 on DS1 is active). If increase the decrement in the track value to a value greater than 6 ( > or = 6). Vlan104 (left) : 150 - 6 = 144. Result is priority 144 < 145 ( vlan104 on DS2 is active).

Question 7:

Which statement is correct about the use of the virtual interface on a WLC :

A. Used to relay DHCP messages
B. Used to communicate with LAPs
C. Used to bring up LWAPP tunnels
D. Used to extend into the wireless client VLAN

That is all, hope to helpful for you. Best Luck for ur Composite 642-892 Exam.

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