Cisco 642-885 Preparation Material Updated

Question No. 1

Which option shows the equivalent multicast MAC address mapping of multicast address 239.210.101.190?

• A. 01:00:5e:52:65:be
• B. 01:00:5d:52:65:be
• C. 01:00:5f:52:65:be
• D. 01:00:5c:52:65:be

Question No. 2

In Cisco IOS-XR, the maximum-prefix command, to control the number of prefixes that can be installed from a BGP neighbor, is configured under which configuration mode?

• A. RP/0/RSP0/CPU0:P2(config-bgp)#
• B. RP/0/RSP0/CPU0:P2(config-bgp-af)#
• C. RP/0/RSP0/CPU0:P2(config-bgp-nbr)#
• D. RP/0/RSP0/CPU0:P2(config-bgp-nbr-af)#

Question No. 3

Refer to the Cisco IOS-XR configuration exhibit.

The Cisco IOS-XR router is unable to establish any PIM neighbor relationships. What is wrong with the configuration?

• A. The configuration is missing:
• B. The configuration is missing:
• C. The auto-rp scoping configurations should be set to 1 not 16
• D. The RP address has not been configured using the rp-address router PIM configuration command
• E. PIM defaults to dense mode operations only, so PIM sparse mode must be enabled using the pim sparse-mode router PIM configuration command

Question No. 4

Refer to the exhibit.

The following multicast IP addresses map to which multicast MAC address?

• A. 01:00:5E:8A:00:01
• B. 01:00:5E:0A:00:01
• C. 01:00:5E:7A:00:01
• D. 01:00:5E:05:00:01

Question No. 5

In which three cases is a dual-stack IPv6/IPv4 router required? (Choose three.)

• A. tunnel endpoint routers in the case of IPv6 over GRE
• B. transit routers in case of an IPv6 over GRE implementation
• C. 6to4 implementation border routers
• D. 6to4 implementation border and neighboring routers
• E. PE routers in case of an IPv6 over IPv4 tunnel over MPLS implementation
• F. PE and P routers in case of an IPv6 over IPv4 tunnel over MPLS implementation