JN0-280 by Juniper Valid Free Exam Practice Test

Question 1

Exhibit:

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

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

Correct Answer: B,C

Explanation: Only visible for ExamsLabs members. You can sign-up / login (it's free).

Question 2

VLANs help in reducing which of the following? (Choose two)

A. Collision domains B. Broadcast domains C. Routing complexity D. Encryption requirements

Correct Answer: A,B

Question 3

What is the primary difference between IBGP and EBGP?

A. The use of AS_PATH attribute B. The administrative distance C. The requirement for a full mesh topology D. The way they advertise routes

Correct Answer: B

Question 4

What are two device roles in a five-member Virtual Chassis? (Choose two.)

A. Line card B. Routing-engine C. PFE D. Control-board

Correct Answer: A,B

Explanation: Only visible for ExamsLabs members. You can sign-up / login (it's free).

Question 5

Referring to the exhibit, how many stages are in this IP fabric?

A. 3 B. 4 C. 5 D. 2

Correct Answer: C

Question 6

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

A. BGP provides the control plane within the overlay network. B. It is the only option to provide reachability between servers that reside in the same network segment in a data center. C. An encapsulation of the original packet is required to transport the packet across the network. D. OSPF provides the control plane within the overlay network.

Correct Answer: A,C

Explanation: Only visible for ExamsLabs members. You can sign-up / login (it's free).

Question 7

What does filter-based forwarding in networking typically allow?

A. Forwarding decisions based on MAC addresses B. Aggregation of multiple routes into a single entry C. Load balancing across multiple CPUs D. Routing decisions based on extended criteria like packet headers

Correct Answer: D

Question 8

In OSPF, what is the function of the Link-State Database (LSDB)?

A. To log changes in network topology. B. To keep the topology structure of the network. C. To store OSPF routing tables. D. To maintain a list of OSPF neighbors.

Correct Answer: B

Question 9

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

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

Correct Answer: A

Explanation: Only visible for ExamsLabs members. You can sign-up / login (it's free).

Question 10

Which two statements are correct about VLAN tags? (Choose two.)

A. VLAN tags require multiple forwarding tables. B. VLAN tags can be inserted or removed by trunk interfaces. C. VLAN tags carry a VLAN ID and priority. D. VLAN tags are required on access ports.

Correct Answer: B,C

Explanation: Only visible for ExamsLabs members. You can sign-up / login (it's free).

Question 11

What are two requirements for an IP fabric? (Choose two.)

A. a single connection between each leaf B. a Layer 3 routing protocol C. a Layer 2 switching protocol D. a single connection between each spine and leaf

Correct Answer: B,D

Explanation: Only visible for ExamsLabs members. You can sign-up / login (it's free).

Question 12

Referring to the exhibit, which two statements are correct about the IP fabric? (Choose two.)

A. All traffic must traverse the super spine devices. B. This is a three-stage IP fabric. C. This is a five-stage fabric. D. Only traffic between pods must traverse the super spine devices.

Correct Answer: C,D

Question 13

What is the behavior of the default export policy for OSPF?

A. Reject all routes. B. Accept all routes. C. Redistribute all routes. D. Forward all routes.

Correct Answer: A

Explanation: Only visible for ExamsLabs members. You can sign-up / login (it's free).

Juniper Data Center, Associate (JNCIA-DC) - JN0-280 Exam Practice Test