Cisco 400-201 Online Practice Questions and Exam Preparation

Cisco 400-201 Online Questions & Answers

• Question 751:

  In the context of MPLS, what is the correct action to be performed when an aggregate label is received?

  A. It replaces the bottom label in the MPLS label stack with a VPN label and propagates
  B. It replaces the top label in the MPLS label stack with a VPN label and propagates
  C. It adds the VPN label into the top label in the MPLS label stack
  D. It removes the top label in the MPLS label stack and does a Layer 3 lookup on underlying IP packets
  D. It removes the top label in the MPLS label stack and does a Layer 3 lookup on underlying IP packets

• Question 752:

  A network engineer wants to avoid route looping in an internal BGP. Which two BGP attributes are used by a route reflector to avoid this issue? (Choose two.)

  A. originator ID
  B. secure ID
  C. cluster ID
  D. network ID
  E. reflector ID
  A. originator ID
  C. cluster ID

• Question 753:

  How does BGPsec protect advertisements by preventing from the malicious traffic flows?

  A. It validates the AS path
  B. It validates only the originating AS
  C. It validates routes with encryption
  D. It validates the next-hop AS
  A. It validates the AS path

• Question 754:

  Which timing over packet solution provides only accurate frequency synchronization, but does not provide time/phase synchronization?

  A. Timing over IP connection and transfer of clock BOF
  B. Precision time protocol
  C. Network time protocol
  D. Synchronous Ethernet
  D. Synchronous Ethernet

• Question 755:

  Which two MVPN profile use either PIM or BGP-AD to advertise the Data-MDT? (Choose two)

  A. Profile 0 : Rosen GRE
  B. Profile 5 : MS-PMSI (Partition) MLDP P2MP with BGP-AD
  C. Profile 3 : Rosen GRE with BGP-AD
  D. Profile 4 : MS-PMSI (Partition) MLDP P2MP with BGP-AD
  E. Profile 9 : Rosen MLDP with BGP-AD
  F. Profile 1 : Rosen MLDP
  C. Profile 3 : Rosen GRE with BGP-AD
  E. Profile 9 : Rosen MLDP with BGP-AD

• Question 756:

  

  Refer to the exhibit. An MPLS VPN service was provisioned for customer ABC both sites must be communication to each other primarily over the wan link with no traffic over the wan circuits PE1 has the same configuration as PE2 which two commands can be configure on the PEs to accomplish the desired goal?(Choose two)

  A. Under sub interface IP VRF SITEMAP SoO with the same SoO value.
  B. no neighbor AS-override.
  C. Neighbor route-map SoO in with the same SoO value.
  D. Neighbor route-map SoO in with a different SoO value.
  E. Neighbor route-map SoOout with the same SoO value.
  B. no neighbor AS-override.
  C. Neighbor route-map SoO in with the same SoO value.

• Question 757:

  In which two ways does the BGP graceful restart capability preserve prefix information during a restarting router? (Choose two.)

  A. The restarting router does not remove any stale prefixes after the timer for stale entries expires.
  B. The restarting router removes any stale prefixes after the timer for stale entries expires.
  C. The restarting router waits to receive updates from the neighboring routers.
  D. The peer router sends an end-of RIB message to the restarting router.
  E. The peer router immediately removes the BGP routes that it learned from the restarting router form its BGP routing table.
  B. The restarting router removes any stale prefixes after the timer for stale entries expires.
  C. The restarting router waits to receive updates from the neighboring routers.

• Question 758:

  Refer to the exhibit.

  

  Routers R1 and R2 have exchanged label binding information. What is preventing the labels from populating the MPLS forwarding table?

  A. MTU on the serial interface cannot accommodate labels.
  B. Cisco Express Forwarding is not running.
  C. The MPLS label distribution protocol is mismatched.
  D. Inbound access list 100 is applied on the serial interface.
  B. Cisco Express Forwarding is not running.

• Question 759:

  With VPLS, which protocol is used for label exchange and PW signalling?

  A. MP-BGP
  B. LDP
  C. BGP
  D. MTP
  E. Directed LDP
  F. IGP
  E. Directed LDP

• Question 760:

  In an inter-AS L3VPN Option B, the PE-ASBRs use which routing table to store all the VPN routes that need to be exchanged?

  A. IGP table
  B. BGP table
  C. VRP routing table
  D. global routing table
  B. BGP table