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Q1. When defining an explicit MPLS TE tunnel path, which two command options are available under the explicit-path configuration mode? (Choose two.)

A. exclude-address

B. include-address

C. next-address

D. dynamic-address

Answer: A,C

Q2. Which four pieces of information are stored for each prefix in the LFIB? (Choose four.)

A. local label

B. outgoing label

C. next-hop IP address

D. outgoing interface

E. incoming interface

F. Layer 2 header rewrite information

Answer: ABCD

Q3. Which QoS mechanism is used for congestion avoidance?

A. LLQ

B. CBWFQ

C. WRED

D. LFI

E. traffic policing

Answer: C

Q4. Which three statements are correct regarding a Cisco MPLS TE? (Choose three.)

A. A Cisco MPLS TE tunnel maps onto an LSP path.

B. Tunnels are bidrectional by default.

C. Packets that are mapped into a Cisco MPLS TE tunnel will have two labels, with the top label indicating what the tail-end router should do with the packet.

D. A tunnel that is created with a priority of 0 can pre-empt an existing tunnel with a priority of 7.

E. CBR takes into account link resource and traffic tunnel attributes.

F. RSVP is used between customer routers.

Answer: ADE

Q5. Which Cisco IOS XR command should be used in order to enable LDP-IGP synchronization for the ISIS IGP protocol?

A. RP/0/RSP0/CPU0:R1(config-isis-if-af)#mpls ldp sync

B. RP/0/RSP0/CPU0:R1(config-isis)#mpls ldp sync

C. RP/0/RSP0/CPU0:R1(config-ldp)#isis ldp sync

D. LDP-IGP synchronization is not supported for the ISIS IGP protocol on Cisco IOS XR platforms

Answer: A

Q6. You are tasked to enable LDP on many of the interfaces on the Cisco CRS-3 router, and because there are many interfaces that need to have LDP enabled, you mistakenly did not enable LDP on all the required interfaces. To prevent this issue from happening again in the future, what could you do the next time you need to enable LDP on many interfaces?

A. use the mpls ldp auto-config command under the IGP routing process

B. use the mpls ldp sync command under the IGP routing process

C. use the interface all command under the MPLS LDP process

D. use the discovery command under the MPLS LDP process

Answer: A

Q7. Cisco MPLS TE resource attributes that are configured locally for each link are distributed to the headend router of the traffic engineering tunnel using which protocol?

A. BGP

B. MP-BGP

C. LDP

D. RSVP

E. OSPF or IS-IS with TE extension

Answer: E

Q8. Refer to the Cisco IOS XR configuration exhibit.

Which statement is correct?

A. The backup tunnel-te 10 tunnel is using the highest setup and hold priority settings of 7.

B. The backup tunnel path is learned dynamically.

C. The fast-reroute command is missing under the (config-mpls-te-if)# configuration mode.

D. Interface gi0/0/0/10 is the protected link.

Answer: