QUESTION 31
Referring to the Cisco IOS XR configuration exhibit, Which labels will be advertised by the router with this configuration? 
A. Only the label for 10.1.1.1/32 will be advertised to all the LDP peers.
B. Labels for all prefixes will be advertised to the 10.1.1.1 LDP peer.
C. Labels for all prefixes will be advertised to all the LDP peers.
D. No labels will be advertised to any LDP peers.
Answer: A
QUESTION 32
What is the term that is used for the label that an LSR assigns and distributes to other LSRs in MPLS?
A. Local
B. Remote
C. Explicit
D. Explicit Null
E. Aggregate
Answer: A
QUESTION 33
Which Cisco IOS XR high-availability feature is used to prevent routes from being used before LDP converges?
A. LDP session protection
B. LDP-IGP synchronization
C. BFD
D. IGP session protection
Answer: B
QUESTION 34
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
QUESTION 35
Referring to the Cisco IOS XR show command output exhibit, What are three possible reasons that the GigabitEthernet0/1/0/10 LDP IGP sync status is not ready? (Choose three.) 
A. GigabitEthernet0/1/0/10 is not configured to run LDP.
B. Graceful restart is not configured on the peer.
C. The LDP neighbor on GigabitEthernet0/1/0/10 is not up.
D. The OSPF neighbor on GigabitEthernet0/1/0/10 is not up.
E. LDP is up on GigabitEthernet0/1/0/10, but no label bindings have been received from the peer.
F. GigabitEthernet0/1/0/10 is a member link of Bundle-Ether9000.
Answer: CDE
QUESTION 36
In which two Cisco IOS XR configuration modes can mpls ldp igp sync be configured? (Choose two.)
A. config-ldp
B. config-if
C. config-ospf-ar
D. config-ospf
E. config-isis
Answer: CD
QUESTION 37
On Cisco routers, which three methods can be used to map traffic into the MPLS traffic engineering tunnel? (Choose three.)
A. on-demand routing
B. static routing
C. optimized edge routing
D. policy-based routing
E. autoroute
Answer: BDE
QUESTION 38
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
QUESTION 39
On a Cisco router, when will the router actually reserve the bandwidth for the MPLS traffic engineering tunnel?
A. during the autoroute process
B. during constraint-based routing calculations
C. on the receipt of the RSVP Path message
D. on the receipt of the RSVP Resv message
Answer: D
QUESTION 40
Cisco MPLS TE path setup can be affected by which three tunnel attributes? (Choose three.)
A. bandwidth
B. delay
C. MTU
D. priority
E. affinity
Answer: ADE
Free New Version Cisco 642-887 Dumps Help You 100% Pass Exam
