Cisco 400-201 Online Practice Questions and Exam Preparation

Cisco 400-201 Online Questions & Answers

• Question 821:

  A network architect is tasked to design and deploy multicast in a service provider core. There is a requirement to have two PIM RP routers for PIM-SM distribute mode. What can the network architect do to satisfy this requirement?

  A. Set two RPs with same priority.
  B. Set two RPs, one with high priority and the other with low priority.
  C. Set one RP as the main RP and another as a backup RP.
  D. Set the RP-BSR method with one high-priority RP and one low-priority RP.
  D. Set the RP-BSR method with one high-priority RP and one low-priority RP.

• Question 822:

  Which Cisco IOS XR Virtualization technology provides full isolation between virtualized routing instances for multiple tenants?

  A. VRF
  B. SDR
  C. HVR
  D. VRF Lite
  B. SDR

• Question 823:

  Which action enables an IPv6 multicast router on a subnet with locally attached receivers to quickly determine if there is a need to send traffic for a certain multicast group out to that subnet?

  A. Adjust the MLD report interval on the router.
  B. Activate IGPMv3 snooping and fast-leave.
  C. Enable the MLDv2 explicit-tracking feature.
  D. Decrease the ICMPv4 multicast query timer.
  B. Activate IGPMv3 snooping and fast-leave.

• Question 824:

  Refer to the exhibit.

  

  An MPLS L2VPN service is provisioned for VPN-A and VPN-B. Which two statements describe the label exchange and the LDP session requirement for MPLS L2VPN signaling? (Choose two.)

  A. PE1 uses the label value that is received from PE2 for VPN-B as the inner label for VPN-B.
  B. PE2 uses the label value that is received from PE1 for VPN-B as the transport label for VPN-B.
  C. LDP must be enabled on the address that is used as the LDP ID between PE1 and PE2.
  D. T-LDP sessions are established between PE1, P1, P2, and PE2.
  E. BGP is required for LDP, based on the Layer 2 VPN.
  F. PE1 uses the label value that is received from PE2 for VPN-B as the transport label for VPN-B.
  A. PE1 uses the label value that is received from PE2 for VPN-B as the inner label for VPN-B.
  C. LDP must be enabled on the address that is used as the LDP ID between PE1 and PE2.

• Question 825:

  Which are the two characteristics of 4G/L TE networks? (Choose two)

  A. eNodeB uplinks to the packet core use the lub interface
  B. 4G/LTE networks use centralized MTSO-based handoff between cell towers
  C. The E-UTRAN model forms the basis of 4G/L TE RAN technologies
  D. eNodeBs in the cell towers requires less buit-in intelligence
  E. RNCs in 4G/LTE networks have built-in MPLS support
  F. Using the X2 interface, eNodeBs have direct communication between each other
  D. eNodeBs in the cell towers requires less buit-in intelligence
  F. Using the X2 interface, eNodeBs have direct communication between each other

• Question 826:

  Drag and drop the RSVP-TE and mLDP characteristic on the left onto the corrct definition on the right

  Select and Place:

  

  

• Question 827:

  In relation to MPLS Multicast VPN, which three statements about multicast distribution tree (MDT) groups are true? (Choose three.)

  A. MDTs are built in customer networks.
  B. MDTs are built in provider networks.
  C. The number of MDTs depends on PIM modes of MDT groups.
  D. Default MDT groups are used for PIM control traffic, low-bandwidth sources, and flooding of sparse mode traffic.
  E. Data MDT groups are used for high-bandwidth sources to reduce replication to uninterested PEs.
  F. Data MDT groups forward multicast packets using MPLS labels and Default MDT groups forward multicast packets using GRE tunnels.
  B. MDTs are built in provider networks.
  C. The number of MDTs depends on PIM modes of MDT groups.
  E. Data MDT groups are used for high-bandwidth sources to reduce replication to uninterested PEs.

• Question 828:

  Which statement is FALSE concerning the interleave depth value?

  A. A higher interleave depth provides more protection from burst of noise on the HFC network
  B. Higher interleave depth increase downstream latency.
  C. Lower interleave depth cause some packet loss on typical HFC networks
  D. None ofthe above
  D. None ofthe above

• Question 829:

  Which statement about the cisco intercloud fabric is true?

  A. It facilitates encrypted communications between VMs inside of private cloud
  B. It provides a virtual storage space for VMs inside of public cloud
  C. It dynamically establishes adjacencies between Cisco Intercloud Switch VMs
  D. It provides a Layer 2 extension of an enterprise network into the public cloud
  D. It provides a Layer 2 extension of an enterprise network into the public cloud

• Question 830:

  How would you characterize the source and type in a denial of service attack on a router?

  A. By perform a show ip interface to see the type and source of the attack based upon the access-list matches
  B. By setting up an access-list to permit all ICMP, TCP, and UDP traffic with the log or log- input commands, then use the show access-list and show log commands to determine the type and source of attack
  C. By performing a show interface to see the transmitted load "txload" and receive load "rxload", if the interface utilization is not maxed out, there is no attack underway
  D. By applying an access-list to all incoming and outgoing interfaces, turning off route- cache on all interfaces, then, when telnetting into the router perform a debug IP packet detail
  B. By setting up an access-list to permit all ICMP, TCP, and UDP traffic with the log or log- input commands, then use the show access-list and show log commands to determine the type and source of attack