Cisco 400-201 Online Practice Questions and Exam Preparation

Cisco 400-201 Online Questions & Answers

• Question 241:

  What is the typical marked DSCP value for a voice signaling packet in VoIP technology?

  A. BE
  B. AF41
  C. AF21
  D. EF
  E. AF31
  E. AF31

• Question 242:

  What is the label for MPLS over ATM?

  A. VPI 16
  B. DLCI
  C. VPI and VCI
  D. circuit number
  E. PVC and SVC
  C. VPI and VCI

• Question 243:

  

  Refer to the exhibit. A router CE_RP is configured as a rendezvous point in an IPv4 multicast domain. What is the root cause of this issue?

  A. A PIM neighbor is sending a PIMv6 message to CE_RP, however IPv6 multicast is not enabled on this router
  B. The multicast application from the 1.1.5.4 source is using a reserved IPv4 multicast address
  C. The PIM adjacency between CE_RP and the downstream router is down
  D. A downstream PIM router sent a join message, which CE_RP does not want to accept
  D. A downstream PIM router sent a join message, which CE_RP does not want to accept

• Question 244:

  What is one of the necessary prerequisites for MPLS Traffic Engineering Inter-AS TE?

  A. Cisco Express Forwarding is supported on the network.
  B. Midpoint reoptimization is configured.
  C. IPv6 is configured.
  D. Network must support BGP.
  A. Cisco Express Forwarding is supported on the network.

• Question 245:

  Before configuring the MPLS VPN--Inter-AS Option AB feature, which two tasks must be performed? (Choose two.)

  A. Configure the VRF's for the MPLS VPN--Inter-AS Option AB network.
  B. Enable Cisco Express Forwarding.
  C. Configure Carrier Supporting Carrier (CSC) MPLS load-balancing on ASBR Option AB VRF interfaces.
  D. Configure IPv6 on ASBR Option AB VRF interfaces.
  A. Configure the VRF's for the MPLS VPN--Inter-AS Option AB network.
  B. Enable Cisco Express Forwarding.

• Question 246:

  Which description is true of what the fast-reroute keep-all-paths command accomplishes when under OSPF process?

  A. Besides the regular LFA backup paths, this command also installs the remote LFA backup paths
  B. By default, only the/32 routes have a backup path installed. This command creates a backup path for the router with any subnet mask
  C. All backup routes-not only the best backup route-are installed in the OSPF RIB
  D. All possible alternate routes are installed in the OSPF RIB, even if the alternate paths do not meet LFA criteria (the LFA inequalities)
  C. All backup routes-not only the best backup route-are installed in the OSPF RIB

• Question 247:

  A security risk has been discovered on the Service Provider MPLS core network during a network audit. Traceroute between the customer sites displays IP addresses of the Service Provider MPLS core. What should be done to hide the IP addresses of the Service Provider MPLS core from the customer traceroute utility?

  A. Configure an access list to block traceroute traffic.
  B. Apply the no mpls ip propagate-ttl forward command.
  C. Enable MPLS LDP session protection.
  D. Configure an LDP label allocation filter.
  E. Apply the no mpls ip propagate-ttl local command.
  B. Apply the no mpls ip propagate-ttl forward command.

• Question 248:

  Which two statements about the BGP peer group feature are true? (Choose two.)

  A. All eBGP peer group members can be from the same or different subnet.
  B. All members of a peer group must share identical inbound announcement policies.
  C. All members of a peer group must share identical outbound announcement policies.
  D. If an eBGP peer group is used, transit can be provided among the peer group members.
  E. Default-originate is handled on a per-peer basis; even members are part of the same peer group.
  C. All members of a peer group must share identical outbound announcement policies.
  E. Default-originate is handled on a per-peer basis; even members are part of the same peer group.

• Question 249:

  The network operation center is receiving an excessive number of BFD alerts. This is due to recently configured high-speed links that result in BGP session teardown. Engineers tried to modify the BFD timers, but no improvement was noticed. Which action maximizes network stability?

  A. enable the BFD Dampening feature
  B. fully remove the BFD configuration
  C. modify the IGP hello timers
  D. enable the BGP Dampening feature
  A. enable the BFD Dampening feature

• Question 250:

  Which ITU publication defines the requirements for communicating data over an optical network?

  A. G.706
  B. G.707
  C. G.708
  D. G.709
  D. G.709