4A0-102

Review 150 4A0-102 practice questions with answer explanations and community insights.

Question 1

Upon the successful establishment of a TCP session between peers, what type of BGP message is exchanged?

  1. OpenSent
  2. Keepalive
  3. Open
  4. Notification
  5. Update

Question 2

Which of the following is FALSE regarding the 16-bit public autonomous system numbers?

  1. They are allocated to the RIRs by ICANN/IANA.
  2. They are used when connecting ASs on the Internet.
  3. They range from 1 to 56319.
  4. They are assigned by the ISPs for enterprise networks.

Question 3

Click the exhibit. If router A originates an update for prefix 192.168.0.1/27, what will the update contain when it reaches router B?

  1. AS Path of 65200, local-preference of 100.
  2. AS Path of 65200, local-preference of None.
  3. Null AS Path, local-preference of 100.
  4. Null AS Path, local-preference of None.

Question 4

BGP is configured on two peers, routers A and B. Router A is configured with a Hold Time timer of 60 seconds and a Keepalive timer of 25 seconds. Router B is configured with a Hold Time timer of 90 seconds and a Keepalive timer of 70 seconds. What will the active Keepalive timer be on router B?

  1. 70 seconds
  2. 25 seconds
  3. 20 seconds
  4. 30 seconds

Question 5

Which of the following statements regarding the Internet is FALSE?

  1. It is a global network relying on interconnections provided by Internet service providers.
  2. It is a continuous and interconnected set of public IP networks, advertised and shared across the globe.
  3. It is a settlement-free global network that provides interconnection between Internet service providers.
  4. It is a network that allows any Internet service provider to reach every other Internet service provider in the world.
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