Free JN0-280 Questions for Juniper Data Center, Associate (JNCIA-DC) JN0-280 Exam as PDF & Practice Test Engine

Exam Code/Number: JN0-280
Exam Name/Title: Data Center, Associate (JNCIA-DC)
Certification Provider: Juniper
Corresponding Certification: JNCIA-DC

Exam Questions: 187
Updated On: Aug 18, 2026

Question #1

You are configuring OSPF in your network as shown in the exhibit. R1 has been configured with interface metrics. All other links in the network are using the default interface metric.
In this scenario, which OSPF interface on R1 will be preferred when routing traffic between R1 and R5?

A. ge-0/0/2

B. ge-0/0/1

C. ge-0/0/0

D. ge-0/0/3

Discussion 0

Correct Answer: B Vote an answer

Question #2

Within your router, you want to verify that you are learning routes from a remote BGP peer at IP address
10.10.100.1. Which command would satisfy the requirement?

A. show route receive-protocol bgp 10.10.100.1

B. show route protocol bgp table inet.0 10.10.100.1

C. show route advertise-protocol bgp 10.10.100.1

D. show route protocol bgp source-gateway 10.10.100.1

Discussion 0

Correct Answer: A Vote an answer

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Question #3

Which two statements are correct about EVPN-VXLAN overlay networking? (Choose two.)

A. OSPF provides the control plane within the overlay network.

B. BGP provides the control plane within the overlay network.

C. An encapsulation of the original packet is required to transport the packet across the network.

D. It is the only option to provide reachability between servers that reside in the same network segment in a data center.

Discussion 0

Correct Answer: B,C Vote an answer

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Question #4

What is an advantage of using BFD?

A. BFD is so lightweight that each protocol will generate its own unique BFD session by default, to replace its own hello messages.

B. BFD is built to handle the routing table of the entire Internet, unlike IGPS.

C. One BFD monitoring session can be used by multiple protocols.

D. BFD built to handle the routing table of the entire Internet, and can safely redistribute it into OSPF.

Discussion 0

Correct Answer: C Vote an answer

Question #5

You are configuring an aggregate route. In this scenario, which two statements are correct? (Choose two.)

A. Reject will silently drop the traffic.

B. Reject will send an ICMP Destination Unreachable message back to the sender.

C. Discard will silently drop the traffic.

D. Discard will send an ICMP Destination Unreachable message back to the sender.

Discussion 0

Correct Answer: B,C Vote an answer

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Question #6

Which LSA types are associated with OSPF? (Choose three)

A. Router LSA (Type 1)

B. Network LSA (Type 2)

C. External LSA (Type 5)

D. Summary LSA (Type 3)

Discussion 0

Correct Answer: A,B,D Vote an answer

Question #7

When a MAC limiting violation occurs, the switch performs which two actions by default? (Choose two.)

A. It drops the packet.

B. No logging takes place.

C. It causes Layer 2 loops.

D. The port is disabled.

Discussion 0

Correct Answer: A,D Vote an answer

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Question #8

What is the primary purpose of OSPF in network routing?

A. To offer dynamic routing within an autonomous system using link-state information.

B. To encrypt data traffic between different networks.

C. To redistribute routes between autonomous systems.

D. To provide path vector routing within an autonomous system.

Discussion 0

Correct Answer: A Vote an answer

Question #9

What are three correct layer names used in legacy hierarchical network design? (Choose three.)

A. Function layer

B. Aggregation layer

C. Modular layer

D. Access layer

E. Core layer

Discussion 0

Correct Answer: B,D,E Vote an answer

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Question #10

When using spine and leaf fabric architectures, what is the role of each device? (Choose two.)

A. Spine nodes are used for host connectivity.

B. Spine nodes are used for transit to other leaf nodes.

C. Leaf nodes are used for traffic to other leafs.

D. Leaf nodes are used for host connectivity.

Discussion 0

Correct Answer: B,D Vote an answer

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Question #11

Which three actions are required to implement filter-based forwarding? (Choose three.)

A. You must create an instance-type forwarding routing instance.

B. You must create an instance-type vrf routing instance.

C. You must create a match filter.

D. You must create a RIB group.

E. You must create a security policy.

Discussion 0

Correct Answer: A,C,D Vote an answer

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Question #12

When considering bidirectional forwarding detection, which two statements are correct? (Choose two.)

A. The BFD default minimum interval is 3.

B. The BFD operation always consists of minimum intervals and multipliers.

C. You can configure BFD per interface within the protocol stanza.

D. The BFD default multiplier is 5.

Discussion 0

Correct Answer: B,C Vote an answer

Free JN0-280 Questions for Juniper Data Center, Associate (JNCIA-DC) JN0-280 Exam as PDF & Practice Test Engine

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