Question 1

What is an advantage of implementing BFD?

Options :

A : BFD provides faster updates for any flapping route.

B : BFD provides millisecond failure detection

C : BFD is deployed without the need to run any routing protocol

D : BFD provides better capabilities to maintain the routing table

Answer: B

Question 2

What are two functions of IPv6 Source Guard? (Choose two.)

Options :

A : It uses the populated binding table for allowing legitimate traffic.

B : It works independent from IPv6 neighbor discovery.

C : It denies traffic from unknown sources or unallocated addresses.

D : It denies traffic by inspecting neighbor discovery packets for specific pattern.

E : It blocks certain traffic by inspecting DHCP packets for specific sources.

Answer: A,C

Question 3

How does BFD protocol work?

Options :

A : When BFD declares a failure on the primary IGP path, the router on the peer router chooses to use the secondary path.

B : BFD operates on the route processor module and impacts the route processor CPU utilization.

C : BFD control packets are sent via UDP port 3784 to the destination router.

D : BFD echo packets are sent to the same source IP and different destination IP with TCP port of 3786.

Answer: C

Question 4

Refer to the exhibit.

R1 is configured with IP SLA to check the availability of the server behind R6 but it kept failing. Which configuration resolves the issue?

Options :

A :

R1(config)# ip sla 700 R1(config-track)# delay down 30 up 20

B : R1(config)# ip sla 700

R1(config-track)# delay down 20 up 30

C : R1(config)# track 700 ip sla 700

R1(config-track)# delay down 30 up 20

D : R1(config)# track 700 ip sla 700

R1(config-track)# delay down 20 up 30

Answer: C

Question 5

A network administrator performed a Compact Flash Memory upgrade on a Cisco Catalyst 6509 Switch. Everything is functioning normally except SNMP, which was configured to monitor the bandwidth of key interfaces but the interface indexes are changed. Which global configuration resolves the issue?

Options :

A : snmp-server ifindex permanent

B : snmp ifindex permanent

C : snmp-server ifindex persist

D : snmp ifindex persist

Answer: C

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