Nokia 4A0-C04 問題集

質問 1：
Which of the following devices assumes the active role during the establishment of an LDP session?
A. The peer with the higher physical address.
B. The peer with the lower transport address.
C. The peer with the lower physical address.
D. The peer with the higher transport address.
E. The peer that generated the first Hello message.
正解：D

質問 2：
Click the exhibit.

This PE is connected to an IPv4 core and is being configured to support 6VPE for a VPRN. Which of the following completes this section of the configuration?
A. Family vpn-ipv4 vpn-ipv6
B. Family ipv4 ipv6
C. Family ipv4
D. Family vpn-ipv4
E. Family ipv6
正解：A

質問 3：
Which of the following regarding MPLS label value assignment is FALSE?
A. Label values may be dynamically assigned by IGP.
B. Label values may be reserved for special uses.
C. Label values may be dynamically assigned by RSVP-TE.
D. Label values may be dynamically assigned by LDP.
正解：A

質問 4：
An LSP is configured with one-to-one FRR and node protection on a Nokia 7750 SR. Which of the following is FALSE?
A. Each PLR signals a protection tunnel that avoids the downstream node.
B. A link protection tunnel is signaled if a node protection tunnel cannot be established.
C. A single protection tunnel can protect all LSPs that go through the same hop.
D. Protection tunnels used in this LSP are also detour tunnels.
正解：C

質問 5：
Click the exhibit.

The output is from PE router R4 about VPRN service 100. How many prefixes have been learned from the MP-BGP protocol?
A. 0
B. 2
C. 3
D. 6
正解：C

質問 6：
Click the exhibit button.

Two neighboring OSPF routers have exchanged the packets shown. What state is the adjacency in?
A. The adjacency is down.
B. The adjacency is in exstart state.
C. The adjacency is in the exchange state.
D. Full; both routers are exchanging Helios to maintain the adjacency.
正解：B

質問 7：
Which of the following regarding per-platform label space is TRUE?
A. A single label is assigned to a FEC for all interfaces on the same router,
B. It uses more label resources than a per-interface label space.
C. It is typically used when the device has ATM or Frame Relay interfaces.
D. A separate label is used for each interface on which the FEC is advertised.
正解：A

質問 8：
What is the protocol number for OSPF in the IP header?
A. OSPF does not use IP.
B. OSPF uses TCP, so the protocol number is 6.
C. OSPF has its own protocol number of 89.
D. OSPF uses UDP, so the protocol number is 17.
正解：C

質問 9：
Two Nokia 7750 SRs are established BGP peers with the following add-paths configuration:
R1: configure router bgp add-paths ipv4 send 4 receive
R2: configure router bgp add-paths ipv4 send 2
If router R1 advertises three routes for a given prefix X, how many routes is router R2 expected to have for prefix X?
A. 2
B. 3
C. None
D. 4
正解：B