Nokia 4a0-103 practice test

Question 1

Click on the exhibit.

An LDP-over-RSVP tunnel is established between PE-1 and PE-2. Which of the following is NOT
required to protect the LDP-over-RSVP tunnel?
A. PE-1 requires T-LDP sessions to both ABR-1 and ABR-2.
B. PE-1 requires a full mesh of RSVP-TE LSPs to all routers in area 1.
C. ABR-1 requires T-LDP sessions to all ABRs in area 0.
D. PE-1 requires fast reroute enabled on all RSVP-TE LSPs.

Question 2

Which MPLS label mode saves label mappings received from all peer LSRs?

• A. Conservative label retention
• B. Liberal label retention
• C. Downstream on demand
• D. Downstream unsolicited

Question 3

Click on the exhibit.

The LSP "toR6" is configured with a fully strict path on an Alcatel-Lucent 7750 SR. Which of the
following configurations is required to enable fast reroute for this LSP?

• A. Enable fast-reroute on all routers along the path. R1, R2, R4, and R6.
• B. Enable both link-protection and node-protection on router R1.
• C. Enable fast-reroute with either one-to-one or facility mode on this LSP.
• D. Enable link-protection only on router R4.

Question 4

An IS-IS TE enabled router has an interface on a 500Mbps link and it is configured with a 25%
subscription. If this interface is not used by any LSPs. what value will be shown in the Reservable
Bandwidth sub-TLV?

• A. 125 Mbps
• B. 500 Mbps
• C. 625 Mbps
• D. 2000 Mbps

Question 5

Which of the following regarding the location of an MPLS label is FALSE?

• A. The MPLS label value may be carried in an ATM header.
• B. The MPLS label value may be carried in a shim header.
• C. The MPLS label value may be carried in an OSPF header.
• D. The MPLS label value may be carried in a Frame Relay header.

Question 6

Click on the exhibit.

The partial command output from an Alcatel-Lucent 7750 SR is shown. Which of the following about
this LSP path is TRUE?
A. R4 (10.10.10.4) has established a link protection tunnel.
B. R6 (10.10.10.6) has established a link protection tunnel.
C. R2 (10.10.10.2) has established a node protection tunnel.
D. R1 (10.10.10.1) has not established a node protection tunnel.

Question 7

If an LSP needs to use an admin group, which of the following configurations is NOT required on the
Alcatel-Lucent 7750 SR?

• A. Assign an admin group to a MPLS interface.
• B. Configure CSPF on the LSP.
• C. Configure at least one strict hop on the LSP path.
• D. Configure an "include" or "exclude" statement on the LSP path.

Question 8

Which of the following about RSVP-TE summary refresh messages is TRUE?

• A. They list the RSVP session names that the router is refreshing,
• B. They list the Message IDs that the router is refreshing,
• C. They list the Tunnel IDs that the router is refreshing.
• D. They list the LSP I Ds that the router is refreshing.

Question 9

Click on the exhibit.

What is the possible reason that the label for prefix 192.10.1.2/32 is not active?

• A. The router does not have a route to reach to the peer 10.10.10.2/32.
• B. The router does not have a route to reach to the prefix 192.10.1.2/32.
• C. The router does not have an export policy defined to export the prefix 192.10.1.2/32 into LDP.
• D. The router receives an invalid label for the prefix 192.10.1.2/32 from its peer.

Question 10

Which of the following fields does NOT appear in the MPLS label header?

• A. Label
• B. Frame check sequence
• C. Traffic Class (previously called Experimental)
• D. Time To live
• E. Bottom of stack bit