Building Cisco Service Provider Next-Generation Networks, Part 2 v9.0
Question 1
What feature of the Cisco ASR series enables service providers and enterprise customers to manage their network performance with respect to bandwidth, delay, jitter, and packet loss?
- A. power over ethernet
- B. quality of service architecture
- C. ip sla
- D. layer 3 capability
Answer : B
Question 2
ISPs use which protocol to establish peering sessions in an Internet exchange point environment?
- A. LDP
- B. IS-IS
- C. BGP
- D. OSPF
Answer : C
Question 3
Answer : 
Question 4
Refer to the exhibit.
A network engineer configured BGP PE to CE neighbor sessions with the commands shown. What does 'address-family ipv4 vrf vrf-cisco' from the configuration allow?
- A. activates the advertisement of the IPv4 address family
- B. defines customer's routing context
- C. specifies a network and mask to announce in VRF-Cisco
- D. redistribute VRF-Cisco
Answer : B
Question 5
Answer : 
Question 6
Refer to the Cisco IOS XR configuration exhibit.
Which statement about the configuration is true?
- A. This is a Level-2-only router.
- B. This is a Level-1-only router.
- C. The maximum IS-IS path metric is 63.
- D. This router belongs to area ID 0001.
- E. This configuration is missing the net configuration for the IPv6 unicast address family.
Answer : D
Explanation: Explanation/Reference:
http://www.cisco.com/en/US/tech/tk365/technologies_white_paper09186a00800a3e6f.shtm l#wp39875
Question 7
Answer : 
Question 8
Refer to the configuration example exhibit.
Which statement is true?
- A. A trunk port has been created and VLAN has been allowed.
- B. An access port has been created on a UNI.
- C. A customer VLAN of 209 is configured.
- D. A QinQ VLAN of 118 is configured.
Answer : D
Explanation: Explanation/Reference:
http://www.cisco.com/en/US/docs/switches/lan/catalyst4500/12.2/54sg/configuration/guide/t unnel.html#wp1026594
Question 9
What command will install the image needed on the Cisco IOS-XR if the SSH configuration options are unavailable?
- A. install activate disk0:c12k-k9sec.pie-4.1.2
- B. install activate disk0:c12k-diags.pie-4.1.2
- C. install commit disk0:c12k-diags.pie-4.1.2
- D. install ssh activate disk0:c12k-k9sec.pie-4.1.2
Answer : A
Question 10
Which type of service provider is responsible for offering backbone connectivity services to other service providers?
- A. CSP
- B. TSP
- C. NSP
- D. ISP
- E. ASP
Answer : C
Explanation: Explanation/Reference:
http://www.cisco.com/web/about/ac79/docs/wp/sp/Service_Providers_as_Cloud_Providers
_IBSG.pdf
Question 11
Which two statements about the link state routing process are true? (Choose two.)
- A. It uses the DUAL algorithm.
- B. It uses metrics such as AS path.
- C. All routers in the area have link state databases.
- D. The administrative distance is 1 by default.
- E. Each router in the area floods LSPs to all neighbors.
Answer : C,E
Question 12
What does the command 'rep admin vlan 100' accomplish?
- A. confines flooding of REP messages to VLAN 100
- B. reserves REP admin VLAN to 100 so that no REP messages are sent on VLAN 100
- C. forces VLAN 100 into a REP block state
- D. this is an invalid command
Answer : A
Question 13
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?
- A. netboot
- B. turboboot
- C. install recovery
- D. install rollback
- E. install add and install activate
Answer : B
Explanation: Explanation/Reference:
http://www.cisco.com/en/US/docs/routers/crs/software/crs_r4.0/migration/guide/tbupgapp.p df
Question 14
What do both Carrier Grade NAT and NAT64 have in common?
- A. both are only used in carrier networks
- B. both are used for tunneling IPv6 in an IPv4 network
- C. both require the use IPv6
- D. both are methods for avoiding IPv4 address exhaustion
Answer : D
Question 15
Which Cisco IOS-XR command is used to unpack a package on the local router?
- A. install boot
- B. install commit
- C. install add
- D. install package
Answer : C