Cisco 642-885 Actual Free Exam Questions & Community Discussion

Exam Code/Number: 642-885
Exam Name/Title: Deploying Cisco Service Provider Advanced Network Routing
Certification Provider: Cisco
Corresponding Certification: CCNP Service Provider

Exam Questions: 131
Updated On: May 31, 2026

Question #28

Which two statements regarding Auto RP operations and implementations are correct? (Choose two.)

A. Every PIM-SM router must be configured with the RP mapping agent IP address

B. RP discovery messages are flooded hop by hop throughout the network as multicast to the all PIM routers multicast group with a TTL of 1

C. A Reverse Path Forwarding check is done on the RP discovery messages

D. Candidate RPs learn the IP address of the mapping agents via periodic RP discovery messages

E. Candidate RPs send RP announcements to the 224.0.1.39 multicast group, and the mapping agents send RP discovery messages to the 224.0.1.40 multicast group

F. Administrative scoping can be configured to limit the scope of the RP announcements

Discussion 0

Correct Answer: E,F Vote an answer

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Question #29

With PIM-SM operations, which four pieces of information are maintained in the multicast routing table for each (*,G) or (S,G) entry? (Choose four.)

A. DF priority

B. OIL

C. Incoming Interface

D. PIM SM state flags

E. RP Set

F. RPF Neighbor

Discussion 0

Correct Answer: B,C,D,F Vote an answer

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Question #30

Referring to the topology diagram show in the exhibit,

which three statements are correct regarding the BGP routing updates? (Choose three.)

A. The IBGP routing updates received by R3 from R2 will be propagated to the R6 router

B. The EBGP routing updates received by R1 from R5 will be propagated to the R2, R4, and R7 routers

C. The EBGP routing updates received by R1 from R5 will be propagated to the R2 and R4 routers

D. The EBGP routing updates received by R3 from R6 will be propagated to the R2 and R4 routers

E. The IBGP routing updates received by R1 from R4 will be propagated to the R5, R7, and R2 routers

F. The IBGP routing updates received by R2 from R1 will be propagated to the R3 router

Discussion 0

Correct Answer: A,B,D Vote an answer

Question #31

With IPv6 multicast, which feature can be used as a replacement method for static RP configuration?

A. PIM Snooping

B. MLD Snooping

C. MLD

D. DHCPv6

E. Embedded RP

Discussion 0

Correct Answer: E Vote an answer

Question #32

Which technology is categorized as multicast ASM and multicast SSM?

A. IPTV

B. IP telephony

C. video conferencing

D. live streaming

Discussion 0

Correct Answer: D Vote an answer

Question #33

When implementing high-availability stateful switchover BGP routing, in which situation would Cisco NSR be required?

A. On the service provider core P routers which are also NSF aware

B. On the PE routers connecting to the CE routers which are incapable of performing stateful switchover operations because the CE routers are only NSF aware but not NSF capable

C. On the PE routers connecting to the CE routers which are incapable of performing stateful switchover operations because the CE routers are only NSF capable but not NSF aware

D. On the PE routers connecting to the CE routers which support graceful restart

E. On the PE routers connecting to the CE routers which are not NSF aware or are not NSF capable

F. On the service provider core P routers which are also NSF capable

Discussion 0

Correct Answer: E Vote an answer

Question #34

Which informationdoes the multicast supported router need to forward the multicast traffic over the source or shared tree?

A. destination address

B. multicast address

C. mGRE headers

D. source address

E. MDT Data

Discussion 0

Correct Answer: A Vote an answer

Question #35

After configuring the tunnel interface as shown in the exhibit, no IPv6 traffic is passed over the IPv4 network.

Which additional configuration is required to pass the IPv6 traffic over the IPv4 network?

A. The tunnel0 interface IPv6 address must use the 2002:://16 prefix

B. Configure an IPv4 address on the tunnel0 interface

C. Configure an IPv6 static route to send the required IPv6 traffic over the tunnel0 interface

D. The tunnel destination should be pointing to an IPv6 address instead of an IPv4 address

Discussion 0

Correct Answer: C Vote an answer

Question #36

Which configuration would an engineer use to exchange IPv6 multicast routes via BGP with a neighbor that does not support thecorresponding Multicast SAFI onCisco IOS XE?

A. router bgp 100 bgp router-id 209.165.201.10 no bgp default ipv4-unicast neighbor 2001:DB8::10 remote-as 201 neighbor 2001:DB8::10 update-source GigabitEthernet 0/10 address-family ipv6 neighbor 2001:DB8::10 translate-update ipv6 multicast unicast no synchronization exit address-family address-family ipv6 multicast neighbor 2001:DB8::10 activate network 2001:DB8:CDCD:1::/64 exit-address-family

B. router bgp 100 bgp router-id 209.165.201.10 no bgp default ipv4-unicast neighbor 2001:DB8::10 remote-as 201 neighbor 2001:DB8::10 update-source GigabitEthernet 0/10 address-family ipv6 neighbor 2001:DB8::10 translate-update ipv6 multicast unicast neighbor 2001:DB8::10 activate no synchronization exit address-family address-family ipv6 multicast neighbor 2001:DB8::10 activate network 2001:DB8:CDCD:1::/64 exit-address-family

C. router bgp 100 bgp router-id 209.165.201.10 no bgp default ipv4-unicast neighbor 2001:DB8::10 remote-as 201 neighbor 2001:DB8::10 update-source GigabitEthernet 0/10 address-family ipv6 multicast neighbor 2001:DB8::10 activate network 2001:DB8:CDCD:1::/64 exit-address-family

D. router bgp 100 bgp router-id 209.165.201.10 no bgp default ipv4-unicast neighbor 2001:DB8::10 remote-as 201 neighbor 2001:DB8::10 update-source GigabitEthernet 0/10 address-family ipv6 neighbor 2001:DB8::10 send-label neighbor 2001:DB8::10 override-capability-neg neighbor 2001:DB8::10 activate no synchronization exit address-family address-family ipv6 multicast network 2001:DB8:CDCD:1::/64 exit-address-family

E. router bgp 100 bgp router-id 209.165.201.10 no bgp default ipv4-unicast neighbor 2001:DB8::10 remote-as 201 neighbor 2001:DB8::10 update-source GigabitEthernet 0/10 address-family ipv6 neighbor 2001:DB8::10 activate address-family ipv6 multicast neighbor 2001:DB8::10 activate network 2001:DB8:CDCD:1::/64 exit-address-family

Discussion 0

Correct Answer: B Vote an answer

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