JN0-281 Exam Training Practice Tests (Juniper Data Center, Associate (JNCIA-DC))]

Question 1

Bidirectional Forwarding Detection (BFD) is primarily used for:

A. Detecting slow links in the network B. Aggregating multiple links C. Encrypting data packets D. Quick failure detection in forwarding paths

Correct Answer: D

Question 2

What is the first route selection mechanism for IBGP?

A. MED B. local preference C. as path D. origin

Correct Answer: B

Question 3

Which of the following is an important consideration when configuring BFD?

A. Disabling all other failure detection mechanisms B. Setting a very high multiplier to avoid false positives C. Adjusting the BFD interval and multiplier according to network needs D. Using the same BFD interval on all devices in the network

Correct Answer: C

Question 4

Which signaling protocol is used for EVPN?

A. OSPF B. IS-IS C. PIM D. BGP

Correct Answer: D

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Question 5

When troubleshooting an OSPF neighborship, you notice that the router stopped at the ExStart state. What is the cause of this result?

A. The priority is set to 255. B. There is an interval timing mismatch. C. There is an area ID mismatch. D. There is an MTU mismatch.

Correct Answer: D

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Question 6

Load balancing in routing is used to:

A. Encrypt data packets. B. Automatically update routing tables. C. Distribute traffic evenly across multiple paths. D. Compress data to improve transmission speed.

Correct Answer: C

Question 7

What protocol and port does BGP use for control plane communication?

A. protocol TCP, port 179 B. protocol UDP, port 179 C. protocol TCP, port 159 D. protocol UDP, port 159

Correct Answer: A

Question 8

Exhibit:

Referring to the exhibit, which two statements are correct about default BGP advertisements? (Choose two.)

A. When routes advertised by router2 are received by the SP router, they will contain the next-hop address of router1. B. When routes advertised by router2 are received by the SP router, they will contain the next-hop address of router2. C. When routes advertised by the SP router are received by router2, they will contain the next-hop address of router1. D. When routes advertised by the SP router are received by router2, they will contain the next-hop address of the SP router.

Correct Answer: A,C

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Question 9

Fill in the blank: In BGP, a route received from an ___________ peer will not be advertised to another ___________ peer by default.

A. IBGP, IBGP B. EBGP, EBGP C. EBGP, IBGP D. Static, Dynamic

Correct Answer: A

Question 10

What is the main purpose of Bidirectional Forwarding Detection (BFD)?

A. to detect network path failures B. to determine if the forwarding routes are correct C. to detect the forwarding protocol D. to determine packet round-trip latency

Correct Answer: A

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Question 11

Which statement is correct about the BGP AS path when advertising routes?

A. The order of the AS path is only significant in IBGP. B. The order of the AS path is not significant. C. The local AS number is added to the end of the AS path. D. The local AS number is added to the beginning of the AS path.

Correct Answer: D

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Question 12

Which two statements are correct about aggregate routes and generated routes? (Choose two.)

A. A generated route has a forwarding next hop. B. A generated route does not have a forwarding next hop. C. An aggregate route does not have a forwarding next hop. D. An aggregate route has a forwarding next hop.

Correct Answer: A,C

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Juniper Data Center, Associate (JNCIA-DC) - JN0-281 Exam Practice Test