Building Cisco Service Provider
Next-Generation Networks, Part 2
Questions, Answers, Braindumps (640-878)
www.exams.ws for giving handi questions for the
help of the students.Here is my Contribution.
Which spanning-tree mode can be used to map several VLANs
to a single spanning-tree instance?
Which spanning-tree mode uses the name command to
configure a region name?
Which procedure is used as the last resort disaster
recovery procedure to completely replace the currently
installed IOS XR software on Cisco IOS XR routers?
C. install recovery
D. install rollback
E. install add and install activate
Which file extension indicates a bootable installation
file in Cisco IOS XR software?
When configuring an ACL entry, which network and wildcard
mask matches only IP addresses 10.8.144.0 to 10.8.151.255?
A. 10.8.144.0 0.0.3.255
B. 10.8.144.0 0.0.7.255
C. 10.8.144.0 0.0.15.255
D. 10.8.144.0 0.0.252.255
E. 10.8.144.0 0.0.248.255
F. 10.8.144.0 0.0.240.255
Which IP addresses are matched by the permit 192.168.80.64
0.0.0.15 access-list entry?
A. 192.168.80.64 to 192.168.80.255
B. 192.168.80.64 to 192.168.80.96
C. 192.168.80.64 to 192.168.80.95
D. 192.168.80.64 to 192.168.80.80
E. 192.168.80.64 to 192.168.80.79
Which two statements about NAT444 are true? (Choose two.)
A. NAT444 packets are translated three times.
B. NAT packets traverse three IPv4 addressing
C. NAT444 needs to work together with DNS64.
D. There are two types of NAT444 (stateful or
E. NAT is performed by the CPE and also by the
service provider router.
Which two statements about NAT64 are true? (Choose two.)
A. NAT64 packets traverse two IPv4 addressing
B. NAT64 packets are translated two times.
C. There are two types of NAT64 (stateful or
D. NAT is performed by the CPE and also by the
service provider edge router.
E. The DNS64 server embeds the IPv4 address from
the DNS A record with a preconfigured IPv6 translation