Cisco 400-201 Online Practice Questions and Exam Preparation

Cisco 400-201 Online Questions & Answers

• Question 161:

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

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

• Question 162:

  DRAG DROP

  Drag and drop the IPC characteristics from the left onto the correct IPC mechanisms used by the Cisco IOS XR on the right.

  Select and Place:

  

  

• Question 163:

  A service provider that is running OSPF with CE routers is required to redistribute MP-BGP routes from the MPLS backbone into this OSPF process. Which parameter is used to identify the OSPF domain for routes that are redistributed from MP-BGP into OSPF?

  A. the OSPF process number that is used on the PE router
  B. the OSPF process number that is used on the CE router
  C. the OSPF router ID
  D. the RD value that is applied under the VRF configuration
  E. the RT value that is applied under the VRF configuration
  A. the OSPF process number that is used on the PE router

• Question 164:

  Select and Place:

  

  

• Question 165:

  Which statement about VRF Lite is true?

  A. It is an IPv6 transition mechanism that facilitates IPv6 transport across an MPLS network, based on IPv4 prefixes
  B. It allows multiple customers to share one CE, which maintains separate VRF tables by using RT information that it learns from PEs.
  C. It extends the PE functionality to a CE by using VLAN SVI connectivity between the PE and CE, a VLAN mapping to the MPLS label separates data packets between VRFs.
  D. MPLS label switching and the MPLS control plane are unsupported in the VRF Lite implementation.
  D. MPLS label switching and the MPLS control plane are unsupported in the VRF Lite implementation.

• Question 166:

  

  An MPLS Layer 3 VPN service has been provisioned for a customer. What will be the ToS value at Site-B for the exceeded traffic that it is sent from Site-A with ToS 2?

  B. 2
  C. 3
  D. 4
  E. No exceeded traffic will reach Site-B.
  C. 3

• Question 167:

  In which Cisco IOS configuration mode is the route distinguisher (RD) configured?

  A. R1(config-route-at)#
  B. R1(config-route-map)#
  C. R1(config-it)#
  D. R1(config-vrf)#
  E. R1(config)#
  F. R1(router)#
  D. R1(config-vrf)#

• Question 168:

  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
  B. Using default MDT results in a reduction of multicast routing states in the core
  D. Bandwidth may be wasted on PEs as a result of only using the default MDT

• Question 169:

  What is the effect of changing DMT interleaved delay from 3 milliseconds to 15 milliseconds?

  A. Latency remains the same, but throughput is decreased.
  B. Latency remains the same, but error correction effectives may also be reduced.
  C. Latency is increased, but faster error correction occurs.
  D. Fewer ATM PVCs can be provisioned on DSL line.
  C. Latency is increased, but faster error correction occurs.

• Question 170:

  What is the purpose of Dual Ring Interconnect with D C for SDH rings?

  A. Protects signals when a ring switch fails
  B. Protects signals when multiple span switches fail
  C. Protects pre-emptible traffic from being dropped when a ring switch occurs
  D. Protects signals against any combination of link failure in each ring
  D. Protects signals against any combination of link failure in each ring