4A0-101 試験問題を無料オンラインアクセス

If routers R1 and R2 have a Level 1 and Level 2 IS-IS adjacency, which of the following statements is true? Choose two answers.

• A.Routers R1 and R2 will send a Level 1 Hello PDU and Level 2 Hello PDU, if the interface type between them is broadcast.
• B.Routers R1 and R2 will send a Level 1 Hello PDU and Level 2 Hello PDU, if the interface type between them is point-to-point.
• C.Routers R1 and R2 are in different areas.
• D.Routers R1 and R2 will send a Level 1/2 Hello PDU if the interface type between them is
  broadcast.
• E.Routers R1 and R2 are in the same area.

Click on the exhibit.

OSPF router R2 has both point-to-point and broadcast interfaces and it is not a DR for any interfaces. Router R2 detects the link failure between itself and router R1.
Which of the following is correct?

• A.Router R2 sends an update to 224.0.0.5 on its broadcast and point-to-point interfaces. The DR does not send any updates.
• B.Router R2 sends an update to 224.0.0.6 out its point-to-point interfaces and an update to 224.0.0.5 out its broadcast interface. The DR sends an update to 224.0.0.6 on the broadcast networks.
• C.Router R2 sends an update to 244.0.0.5 on its point-to-point interfaces. The DR sends an update to 224.0.0.6 on the broadcast network.
• D.Router R2 sends an update to 224.0.0.5 out its point-to-point interfaces and an update to 224.0.0.6 out its broadcast interface. The DR sends updates to 224.0.0.5 on the broadcast network.

Which of the following TLV fields is included in an IS-IS Hello packet?

• A.Intermediate system neighbors TLV Area addresses TLV LSP entries TLV
• B.The IP external reachability information TLV Area addresses TLV Intermediate system neighbors TLV
• C.The IP internal reachability information TLV Area Addresses TLV Authentication Information TLV
• D.Area addresses TLV Intermediate system neighbors TLV Authentication information TLV

Click the exhibit button.

192.168.3.1 is a loopback interface on router R2 and is distributed to OSPF area 0, but the ping fails from router R3. Which of the following is a possible solution to the problem?

• A.Add the "originate-default-route" option in the NSSA area configuration on router R3
• B.Make a default route on router R2
• C.Make a static route on router R1 to 192.168.3.1
• D.Add the "summaries" option to the NSSA area configuration on router R1

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

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