Nokia 4A0-103 Online Practice Questions and Exam Preparation

Nokia 4A0-103 Online Questions & Answers

• Question 141:

  Which of the following messages is NOT used in T-LDP operation?

  A. Hello message
  B. Init message
  C. Keepalive message
  D. Label Mapping message
  E. ACK message
  E. ACK message

• Question 142:

  Click on the exhibit.

  

  Router R2 advertises the aggregate prefix 10.10.10.0/24 into Area 1. Why would LDP aggregate- prefix- match be enabled on router R3?

  A. To reduce the number of LDP sessions
  B. To reduce the number of LIB and LFIB entries
  C. To bypass the LDP exact prefix match rule
  D. To export summarized routes from OSPF to LDP
  C. To bypass the LDP exact prefix match rule

• Question 143:

  Consider a device that uses per-platform label space; which of the following fields is NOT contained in the LFIB?

  A. Incoming label
  B. Outgoing label
  C. Incoming interface
  D. Outgoing interface
  C. Incoming interface

• Question 144:

  Click on the exhibit.

  

  When router R1 forwards a PATH message to router R2, which of the following about the PATH message's IP header is TRUE?

  A. The options field is set to router alert.
  B. The source address is R1's egress interface address.
  C. The destination address is R2's ingress interface address.
  D. The HOP object includes R2's system address.
  A. The options field is set to router alert.

• Question 145:

  Which of the following is described by the following statement? An LSR propagates a label mapping only for a FEC for which it has a label mapping for the FEC next-hop.

  A. Independent control mode
  B. Ordered control mode
  C. Liberal label retention
  D. Conservative label retention
  E. Downstream on demand.
  B. Ordered control mode

• Question 146:

  What labels are encapsulated in the tunnels used by a 6PE deployment?

  A. The inner label is the IPv4 Explicit Null. The outer label is the MPLS transport label,
  B. The inner label is an MPLS transport label. The outer label is the IPv4 Explicit Null.
  C. The inner label is the IPv6 Explicit Null. The outer label is an MPLS transport label.
  D. The inner label is an MPLS transport label. The outer label is the IPv6 Explicit Null.
  C. The inner label is the IPv6 Explicit Null. The outer label is an MPLS transport label.

• Question 147:

  Which of the following is NOT a characteristic of MPLS?

  A. It provides the ability to establish connection oriented paths over a connectionless IP network.
  B. It provides a mechanism to engineer network traffic patterns independently of IP routing tables.
  C. It will work over most physical layer protocols.
  D. It can use GRE tunnels to transport data from many different protocols over an IP network.
  D. It can use GRE tunnels to transport data from many different protocols over an IP network.

• Question 148:

  Click on the exhibit button below.

  

  Consider the output shown; what table is displayed?

  A. RIB
  B. FIB
  C. LIB
  D. LFIB
  D. LFIB

• Question 149:

  Initially, all ports on an Alcatel-Lucent 7750 SR have 10Gbps bandwidth. RSVP configuration limits reservable bandwidth to 30 percent on all interfaces. An LSP is signaled reserving 1 Gbps bandwidth. How much unreserved bandwidth is left on the interface?

  A. 10 Gbps
  B. 7 Gbps
  C. 3 Gbps
  D. 2 Gbps
  D. 2 Gbps

• Question 150:

  Click on the exhibit.

  

  An LSP path is established on router R1 toward router R6. If there is a problem on router R4, but the link between R2 and R4 remains up, which of the following will affect the failure detection time?

  A. The time router R2 takes to receive a PATH Error message from router R4.
  B. The time router R2 takes to find out a number of RSVP Hello messages have been missed.
  C. The time router R2 takes to send a PATH Tear message to the head-end router.
  D. The time router R2 takes to receive a PATH message from router R4 after a PATH refresh interval.
  B. The time router R2 takes to find out a number of RSVP Hello messages have been missed.