Nokia 4A0-C01 Online Practice Questions and Exam Preparation

Nokia 4A0-C01 Online Questions & Answers

• Question 131:

  Which of the following best describes how IS-IS routers exchange updates on an Ethernet interface?

  A. IS-IS routers exchange updates by sending UDP packets to a multicast address.
  B. IS-IS routers exchange updates using IP multicast packets.
  C. IS-IS routers exchange updates using Ethernet multicast packets.
  D. IS-IS routers exchange updates by sending packets to the subnet broadcast address.
  C. IS-IS routers exchange updates using Ethernet multicast packets.

• Question 132:

  Click on the exhibit.

  

  LSP " to R8-5 " requests fast reroute protection. What could be done to remove the Failure Code shown?

  A. The LSP must be enabled with CSPF on the head-end router.
  B. Fast reroute must be enabled on the downstream routers.
  C. A mixture of strict and loose hops must be defined in the primary path.
  D. CSPF and fast reroute must be enabled on all downstream routers.
  A. The LSP must be enabled with CSPF on the head-end router.

• Question 133:

  How are IS-IS LSPs sent on point-to-point links?

  A. They are sent using multicast MAC addresses 0180:0200:0014.
  B. They are sent using multicast MAC addresses 0180:c200:0015.
  C. They are sent using a unicast address.
  D. None of the above.
  C. They are sent using a unicast address.

• Question 134:

  Which of the following about LDP sessions is TRUE?

  A. Frame mode requires multiple sessions between peers.
  B. The lower transport address initiates the session.
  C. Established LDP sessions run over a TCP connection.
  D. An LDP session is established immediately after Init messages are exchanged between peers.
  C. Established LDP sessions run over a TCP connection.

• Question 135:

  Which of the following types of network topologies are supported by IS-IS on the Alcatel- Lucent 7750 SR? Choose two answers.

  A. Non-broadcast
  B. Broadcast
  C. Point-to-multipoint
  D. Point-to-point
  B. Broadcast
  D. Point-to-point

• Question 136:

  The exhibit shows a route to 2001:DB8:1:200::/56 in the IPv6 route table. How did the route get into the route table?

  

  A. Configure router ipv6 static-route 2001:DB8:1:200::/56 next-hop FE80::225:BAFF:FE30:94E3
  B. Configure router ipv6 static-route 2001:DB8:1:200::/56 next-hop FE80::225:BAFF:FE30:94E3-toR2
  C. Configure router static-route 2001:DB8:1:200::/56 next-hop FE80::225:BAFF:FE30:94E3
  D. Configure router static-route 2001:DB8:1:200::/56 next-hop FE80::225:BAFF:FE30:94E3-toR2
  E. The route was learned through a dynamic routing protocol.
  D. Configure router static-route 2001:DB8:1:200::/56 next-hop FE80::225:BAFF:FE30:94E3-toR2

• Question 137:

  What is the best approach of making MTUs match between a VPLS and a spoke IES in order to bring up the service?

  A. Change the service MTU of the VPLS to match the IES.
  B. Set the ip-mtu of the IES service to match the service MTU of the VPLS service.
  C. Change the MTU of the SDP attached to the VPLS to match the service MTU of the VPLS.
  D. Set the DNF flag on the IES service.
  B. Set the ip-mtu of the IES service to match the service MTU of the VPLS service.

• Question 138:

  Click on the exhibit.

  

  An LDP tunnel is established on router R1 towards router R6. The link between routers R2 and R4 goes down. What will happen to the MPLS data traffic to router R6 IMMEDIATELY after the link goes down?

  A. MPLS data traffic will be discarded until the IGP finds a new next-hop to router R3.
  B. MPLS data traffic will be discarded unless the LDP tunnel has a standby secondary path.
  C. MPLS data traffic will not be discarded because router R1 received labels from both next-hops, routers R2 and R3.
  D. MPLS data traffic will not be discarded because of fast reroute capability on router R2.
  B. MPLS data traffic will be discarded unless the LDP tunnel has a standby secondary path.

• Question 139:

  Click on the exhibit.

  

  An LSP path is established on router R1 toward router R6. If the link between routers R4 and R6 goes down, which of the following is the quickest way for service recovery?

  A. Router R1 updates its FIB after a new SPF calculation.
  B. Router R1 switches to a secondary path.
  C. Router R4 switches to a FRR path.
  D. Router R4 switches to a standby secondary path.
  C. Router R4 switches to a FRR path.

• Question 140:

  Click the exhibit.

  

  Assuming CE1 exports its system address using BGP, is a routing policy required on PE1 to advertise CE1's system address to PE2?

  A. Yes, A routing policy is required to advertise routes between PE routers in a VPRN regardless of the CE-PE routing.
  B. Yes, A routing policy is required in this case because BGP is used as the PE-CE routing protocol.
  C. No, a routing policy is not required. By default, the Alcatel-Lucent 7750 SR will advertise all VPRN routes between PE routers.
  D. No, a routing policy is not required on PE1, but an import policy is required on PE2.
  C. No, a routing policy is not required. By default, the Alcatel-Lucent 7750 SR will advertise all VPRN routes between PE routers.