HSRP Questions 4
Here you will find answers to HSRP Questions 4
Which three of the following network features are methods used to achieve high availability? (Choose three)
A. Spanning Tree Protocol (STP)
B. Delay reduction
C. Hot Standby Routing Protocol (HSRP)
D. Dynamic routing protocols
E. Quality of Service (QoS)
F. Jitter management
Answer: A C D
STP, HSRP and dynamic routing protocols provide backup paths to reach the destination and achieve high availability.
Note: Quality of Service (Qos) only prioritizes specific type of data over other types and provides no high availability.
Which command will ensure that R2 will be the primary router for traffic using the gateway address of 172.16.15.20?
A. On R2 add the command standby 1 priority 80
B. On R1 add the command standby 1 priority 110
C. On R1 add the command standby 1 priority 80
D. On R2 remove the command standby 1 preempt
By default the priority value of HSRP is 100 so in order to ensure that R2 will be the primary router for traffic using the gateway address of 172.16.15.20 we can set the priority of R2 higher than 100 or set the priority of R1 lower than 100 -> only C is correct.
Which command will need to be added to External_A to ensure that it will take over if serial 0/0 on External_B fails?
A. standby 1 priority 130
B. standby 1 preempt
C. standby 1 track fastethernet 0/0
D. standby 1 track 10.10.10.1
The “standby 1 preempt” command on External_A router will make External_A take over the active state if it learns that its priority is higher than that of External_B router. In this case, when S0/0 interface of External_B fails, its priority will be 105 – 10 = 95, which is smaller than the default priority value (100) on External_A.
Refer to the exhibit and the partial configuration on routers R1 and R2. Hot Standby Routing Protocol (HSRP) is configured on the network to provide network redundancy for the IP traffic. The network administrator noticed that R2 does not became active when the R1 serial0 interface goes down. What should be changed in the configuration to fix the problem?
A. The Serial0 interface on router R2 should be configured with a decrement value of 20.
B. The Serial0 interface on router R1 should be configured with a decrement value of 20.
C. R2 should be configured with a standby priority of 100.
D. R2 should be configured with a HSRP virtual address.
When Serial0 of R1 goes down, the priority of R1 is still higher than that of R2 (115 – 10 = 105 > 100) so we should configured the decrement value of 20 on R1 with the command: standby 1 track Serial0 20.