Cisco CCNP Service Provider 350-501 Questions & Answers

• Question 211:

  Which two steps must a service provider consider when adding multicast support to the existing MPLS L3VPN? (Choose two.)

  A. Using SSM for data MDT helps to minimize the number of group addresses needed in the core

  B. Using default MDT results in a reduction of multicast routing states in the core

  C. All PEs must be configured as RPs inside of each customer VRF to minimize impact of the RPF lookups

  D. Bandwidth may be wasted on PEs as a result of only using the default MDT

  E. Forwarding customer multicast traffic only via the default MDT optimizes PE utilization

  Correct Answer: BD

  Reference: https://www.nanog.org/meeting-archives/nanog44/presentations/Sunday/McBride_iptv_N44.pdf

• Question 212:

  Which type of multicast distribution trees can RSVP-TE-based multicast build?

  A. only branches of point-to-point tunnels

  B. multipoint-to-multipoint multicast from tail-end to head-end full mesh

  C. point-to-multipoint multicast distribution trees

  D. point-to-multipoint trees from tail-end to head-end

  E. multipoint-to-multipoint multicast distribution trees

  Correct Answer: D

• Question 213:

  Which command will display the MPLS label binding for IP prefix 1.1.1.0 on the router?

  A. All of the above.

  B. show tag-switching tdp binding 1.1.1.0/24

  C. show tag-switching tdp bindings neighbor 1.1.1.0

  D. A and B both will show the binding.

  E. show tag-switching interface e0/0

  Correct Answer: B

• Question 214:

  Which three options are restrictions for MPLS VPN BGP Local Convergence? (Choose three.)

  A. The MPLS VPN BGP Local Convergence feature affects only traffic that is exiting the VPN. Therefore, it cannot fully protect traffic end-to-end by itself.

  B. This link protection can be initiated during a HA SSO. But links that were configured with this protection before the switchover begins remain protected after the switchover.

  C. The MPLS VPN BGP Local Convergence feature for IPv4/IPV6 supports the eBGP, RIP, EIGRP,OSPF, and dynamic routing protocols.

  D. Any next-hop core tunneling technology that is supported by BGP is also supported for protection, including MPLS, L2TPv3, and IP/GRE. CSC protocol between the PE and CE is also supported. Interautonomous system option A (back-to-back VRF) is supported because it is essentially the same as performing the PE-CE link protection in both autonomous systems. However, interautonomous system options B and C protection are not supported.

  E. If you perform an in-service software downgrade from an image that does include this link protection to an image that does not support this feature, active protection is halted when BGP routes are refreshed.

  Correct Answer: ADE

• Question 215:

  Which mode does PPP interface use for peer authentication?

  A. in-band

  B. semi-in-band

  C. out-band

  D. semi-out-band

  E. in-band and out-band

  Correct Answer: C

• Question 216:

  What statement is true?

  A. Link Control Protocol (LCP) is used for denying PPP connections to unauthorized devices.

  B. Link Control Protocol (LCP) is used for basic PPP link setup and operation

  C. Link Control Protocol (LCP) for PPP is synonymous to ARP for Ethernet.

  D. None of the above.

  Correct Answer: B

• Question 217:

  Which router or router combination is used to calculate the MPLS traffic engineering tunnel path?

  A. head-end router and tail-end router

  B. middle-point router

  C. head-end router

  D. tail-end router

  Correct Answer: C

• Question 218:

  Which option describes a benefit of IPv6 VPN Provider Edge?

  A. Uses separate signaling plane, which provides more security than IPv4

  B. No requirement for a separate signaling plane

  C. Provides support for intra-AS and CSC scenarios

  D. BGP is the preferred routing protocol for connecting two SPs.

  Correct Answer: B

• Question 219:

  Which are the two limitations of the predefined NAT solution? (Choose two)

  A. Only the port-presentation option is available

  B. NetFlow and syslog are not supported

  C. The predefined mode cannot be turned on or off during the active translations

  D. Port allocation must be uniform for all subscribers

  E. The global port limit parameter is not available for the predefined mode

  Correct Answer: DE

• Question 220:

  A service provider is implementing an nV Edge system with the two ASR 9000 chassis has two RSPs. Which two cabling methods reflect the minimum configuration needed for full synchronization between the two Cisco ASR 9000 chassis? (Choose two)

  A. Create the single virtual control plane that connect the two RSPs between the two chassis via Layer 2 connections

  B. Create the IRL connections between the two chassis via Layer 3 connections using the EOBC 10 Gbps ports of the RSPs

  C. Create the IRL connections between the two chassis via Layer 3 connections using the ports of the line cards

  D. Create the single virtual control plane that connect the two chassis via Layer 3 connections using the 10 Gbps ports of the line cards

  E. Create the IRL connections between the two chassis via Layer 1 connections using the10 Gbps ports of the line cards

  F. Create the single virtual control plane that connect the two chassis via 100 Gbps bundle interfaces

  G. Create the IRL connections between the two chassis via Layer 1 connections using the EOBC 10 Gbps ports of the RSPs

  Correct Answer: AE