Nokia 4A0-C01 Online Practice Questions and Exam Preparation

Nokia 4A0-C01 Online Questions & Answers

• Question 41:

  An OSPF router receives an update in which the sequence number, age, and checksum are the same as the entry already in the topological database. What action does the router take?

  A. The link-state information is not populated in the database, but is forwarded to all neighbors.
  B. The link-state information already in the database is overwritten and the age is reset.
  C. The link-state information is not populated in the database and an acknowledgement is sent.
  D. The link-state information is regarded as old and nothing is done.
  E. A link-state request is performed to increase the sequence number.
  C. The link-state information is not populated in the database and an acknowledgement is sent.

• Question 42:

  Which of the following about the Alcatel-Lucent 7750 SR command "own Isp-trace" is FALSE?

  A. The MPLS TTL values are incremented at each request.
  B. The router uses MPLS Echo Request packets that are IP-routed.
  C. The router collects hop information along the tunnel's path.
  D. The router performs an unidirectional LSP test.
  B. The router uses MPLS Echo Request packets that are IP-routed.

• Question 43:

  An LSP is configured with a fully explicit path. An LSR receives the first PATH message for this LSP. Which of the following is NOT performed by the LSR?

  A. The LSR regenerates and forwards a new PATH message.
  B. The LSR stores the PATH message in the PSB.
  C. The LSR forwards the PATH message based on ERO.
  D. The LSR looks up the PATH message's destination IP address in the FIB.
  C. The LSR forwards the PATH message based on ERO.

• Question 44:

  Which of the following about transport tunnels used by services is FALSE?

  A. A transport tunnel can carry many service tunnels.
  B. The transport label is unchanged throughout the transport network.
  C. A single network port can carry more than one transport tunnel.
  D. Both MPLS and GRE transport tunnels use a service label.
  B. The transport label is unchanged throughout the transport network.

• Question 45:

  Click on the exhibit.

  

  All ports in the network are operationally up and have a speed of 1Gbps. Which of the following is TRUE?

  A. Data traffic from network 192.168.1.0/24 to 192.168.3.0/24 will be forwarded through router R2.
  B. Data traffic from network 192.168 3.0/24 to 192.168.1.0/24 will be forwarded from router R3 directly to router R1.
  C. The system interface of routers R1 and R3 must be included into OSPF for traffic to flow between the 192.168.1.0/24 and 192.168.3.0/24 networks.
  D. The OSPF adjacency between router R1 and router R3 is operationally up.
  D. The OSPF adjacency between router R1 and router R3 is operationally up.

• Question 46:

  Click the exhibit button.

  

  A static route has been configured on router R1 to reach the PC at 139.120.121.2. However, as shown in the exhibit, the ping fails. What is the most likely cause of the problem?

  A. Router R2 does not have a route to the system address of router R1 and therefore cannot respond to the ping.
  B. There is no default route configured on the PC.
  C. Router R2 does not have a route configured to the PC.
  D. Router R1 needs to be configured with a default route.
  B. There is no default route configured on the PC.

• Question 47:

  Which of the following timers can be adjusted to reduce the time a router waits between attempts to re-establish an LSP after it has failed?

  A. Isp retry-timer
  B. Isp retry-limit
  C. mpls resignal-timer
  D. rsvp refresh-time
  E. router rsvp keep-multiplier
  A. Isp retry-timer

• Question 48:

  Which of the following statements is TRUE concerning route distinguishes on the 7750 SR?

  A. Route distinguishes are 12 bytes in length
  B. Route distinguishes are appended to IPv4 prefixes to form 16 byte VPN-IFV1 prefixes.
  C. Route distinguishes are used to determine which routes a VPRN should import.
  D. CE routes must be configured with the proper route distinguishes for the VPRN they are associated to
  E. All of the above statements are true.
  F. All of the above statements are false.
  F. All of the above statements are false.

• Question 49:

  Which of the following about RSVP-TE LSP configuration in a Alcatel-Lucent 7750 SR is TRUE?

  A. LSPs must always terminate on a system ID.
  B. MPLS and RSVP must be enabled on all LSRs.
  C. CSPF must be enabled.
  D. Path definitions must include at least one hop entry.
  B. MPLS and RSVP must be enabled on all LSRs.

• Question 50:

  Which one of the following statements regarding the detour object transported in the detour path message is true?

  A. The PLR sends it downstream with the RRO.
  B. The PLR sends it downstream with the ERO.
  C. It associates all detours with the source PLR.
  D. The MP sends it upstream with the RESV message.
  B. The PLR sends it downstream with the ERO.