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Q21. What are three actions that the control word performs in MPLS AToM? (Choose three.)
A. is used to identify the VC label
B. is used for padding small packets
C. preserves the sequence of the transported frames
D. facilitates the load balancing of AToM packets in the MPLS backbone network
E. carries control bits of the Layer 3 header of the transported protocol
F. is used to identify the tunnel label
Answer: B,C,D
Explanation: https://ccdewiki.wordpress.com/2013/05/28/control-word-on-atom/
Q22. DRAG DROP
Drag and drop each fast detection mechanism on the left to its definition on the right.
Answer:
Q23. A network engineer is designing the BGP architecture with a requirement of preventing the AS 65001 from becoming a Transit AS path, using the following configuration:
router bgp 65000
neighbor 10.0.0.1 route-map BGP-ROUTE-POLICY in
The goal is to prevent routes learned from 10.0.0.1 from being advertised to any other eBGP peering in the AS 65000. What command should be used within the route map to achieve this goal while keeping existing route policies in place?
A. set community no-export additive
B. set community no-advertise
C. set community no-advertise additive
D. set community no-export
Answer: C
Explanation:
Reference: http://www.cisco.com/c/en/us/support/docs/ip/border-gateway-protocol-bgp/26634-bgp-toc.html
Q24. Refer to the exhibit.
Two ISPs have decided to implement MPLS Inter-AS TE. All routers have full reachability to all subnets. RSVP and MPLS TE have been enabled in all routers interfaces in both ISPs, yet Tunnel 14 is not up Which configuration will fix this issue?
A. On R1, apply the command:
interface Tunnel14
mpls traffic-eng passive-interface nbr-te-id 10.10.10.4 nbr-igp-id ospf 10.10.10.1
B. On R1, apply the command:
interface Tunnel14
mpls traffic-eng passive-interface nbr-te-id 10.10.10.4 nbr-igp-id isis 10.0000.0000.0004.00
C. On R1. apply the command:
interface Tunnel 14
tunnel mpls traffic-eng path-option 1 dynamic
D. I On R2. apply the command:
interface Fa0/1
ip router isis
!
router ospf 1
redistribute isis subnets
On R3, apply the command:
interface Fa0/1
ip ospf 1 area 0
!
router isis
redistribute ospf 1
E. On R2, apply the command:
interface Fa0/1
mpls traffic-eng passive-interface nbr-te-id 10.10.10.3 nbr-igp-id ospf 10.10.10.2
!
On R3, apply the command:
interface Fa0/1
mpls traffic-eng passive-interface nbr-te-id 10.10.10.2 nbr-igp-id isis 10.0000.0000.0003.00
F. On R2, apply the command:
interface Fa0/1
mpls traffic-eng passive-interface nbr-te-id 10.10.10.3 nbr-igp-id isis 10.0000.0000.0003.00
!
On R3, apply the command:
interface Fa0/1
mpls traffic-eng passive-interface nbr-te-id 10.10.10.2 nbr-igp-id ospf 10.10.10.2
Answer: F
Q25. Refer to the exhibit.
The vrf MAINT has been provisioned and used by the Service Provider management network. The engineer discovers that syslog messages are not being received on the syslog server. IP reachability has been validated using ping. Which issue in the configuration must be corrected?
A. logging on must include the vrf MAINT keyword.
B. logging host must include the vrf MAINT keyword.
C. The logging facility must be configured for syslog processing.
D. The route targets that are configured do not match the route distinguisher.
Answer: B
Explanation:
http://www.cisco.com/c/en/us/td/docs/ios/12_2sr/12_2sra/feature/guide/srvrfslg.html#wp10 59076
Q26. An operations engineer wants to manually optimize the MPLS Traffic Engineering tunnels. Which Cisco IOS EXEC command should the engineer apply?
A. tunnel mpls traffic-eng autoroute destination
B. tunnel mpls traffic-eng path-option lowest _number dynamic
C. mpls traffic-eng reoptimize lockdown
D. mpls traffic-eng multicast-intact
E. mpls traffic-eng reoptimize
Answer: E
Q27. What are two advantages of Cisco IOS XR Software over Cisco IOS Software? (Choose two.)
A. a configuration that is grouped by interface
B. a configuration that is grouped by process
C. one-stage configuration
D. a monolithic OS
E. a two-stage configuration
Answer: B,E
Q28. What are the four key design requirements for mobile IP backhaul? (Choose four.)
A. X2 interface turning point
B. bandwidth
C. Layer 2 Tunneling
D. native IPv6 support
E. DiffServQoS
F. MPLS-enabled interface
G. network timing distribution and recovery
H. mandatory Layer 3 access up to a cell site
Answer: C,D,G,H
Explanation: http://www.cisco.com/web/about/ac123/ac147/archived_issues/ipj_14-3/143_backhaul.html
Q29. The following MPP configuration is applied on RA router: RP/0/RSP0/CPU0:RA#sh running-config control-plane
control-plane
management-plane
inband
interface TenGigE 0/0/0/0
allow SSH peer
address ipv4 5.0.0.0/8
Which two pieces of information are correct in regards to management traffic on RA router? (Choose two)
A. SNMP traps going out on TenGigE 0/0/0/0 interface are dropped.
B. SNMP polling coming through TenGigE 0/0/0/0 interface are dropped.
C. Telnet connections coming through MgmtEth0/RSP0/CPU0/0 interface are accepted.
D. SSH connections coming through TenGigE 0/0/0/0 interface from 5.5.5.5 host are accepted.
E. TACACS traffic going through TenGigE 0/0/0/0 interface are dropped.
Answer: B,D
Q30. In a routing virtualization concept, which are the two main techniques for creating vitalized router entities as defined by their physical and operational characteristics? (Choose two.)
A. HVR
B. SVR
C. SDR
D. DRP
E. VDC
Answer: A,B
