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JN0-1301 Online Practice Questions

Data Center Design, Specialist (JNCDS-DC)

65 questions available · Page 1 of 7

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Question 1 Multiple choice

What are two industry-standard high availability features used in data centers? (Choose two.)

  1. A

    IPFIX

  2. B

    separation of control and forwarding planes

  3. C

    graceful restart

  4. D

    Bidirectional Forwarding Detection

Show answer and explanation

Correct answers: B, D

Question 2 Single choice

You have included in your data center design an SRX1500 chassis cluster. The RFP requires a documented upgrade process for the cluster that minimizes downtime.

What satisfies this requirement in this scenario?

  1. A

    an in-service software upgrade

  2. B

    a topology-independent in-service software upgrade

  3. C

    a manual device upgrade

  4. D

    a nonstop software upgrade

Show answer and explanation

Correct answer: A

Question 3 Multiple choice

You are implementing a Virtual Chassis Fabric using QFX5110 devices.

Which two statements are true in this scenario according to Juniper Networks recommendations? (Choose two.)

  1. A

    Spine devices must assume the RE role.

  2. B

    Leaf devices must have a direct link to all other leaf devices.

  3. C

    Spine devices must assume the line card role.

  4. D

    Leaf devices must have a direct link to all spine devices.

Show answer and explanation

Correct answers: A, D

Question 4 Single choice

Your data center uses a Virtual Chassis Fabric. The ToR switches have 48 ports and each rack supports 20 servers. Each server has two ports that are configured as a LAG.

You need to implement link level redundancy but you cannot use two ports on the same device for this redundancy.

Which type of connection should you use to complete this task?

  1. A

    MC-LAG

  2. B

    RTG

  3. C

    LAG

  4. D

    ESI

Show answer and explanation

Correct answer: C

Question 5 Multiple choice

Which two statements are true about IP fabrics? (Choose two.)

  1. A

    IP-based applications do not require an overlay network to maintain connectivity.

  2. B

    Applications that require security needs an overlay to provide the security.

  3. C

    Applications that require Layer 2 adjacencies require an overlay network to maintain connectivity.

  4. D

    IP fabrics can natively support both Layer 2 and Layer 3 applications.

Show answer and explanation

Correct answers: C, D

Question 6 Single choice

You are asked to create a new data center based on an IP fabric architecture. The data center must support many segmented applications that require Layer 2 adjacencies. You decide to use EVPN-VXLAN as an overlay technology to accomplish the task. To meet the requirements, each application will be placed in its own VLAN.
In this scenario, what is required for communication between VLANs to occur?

  1. A

    IBGP and Q-in-Q

  2. B

    IBGP and MP-BGP

  3. C

    IBGP and MPLS

  4. D

    IBGP and GVRP

Show answer and explanation

Correct answer: B

Question 7 Single choice

Click the Exhibit button.

Traffic congestion has been noticed when S1 is sending traffic to S2. You must design a CoS deployment to address the traffic congestion issue.
Referring to the exhibit, which statement is true?

  1. A

    You should deploy CoS on R1 and R4.

  2. B

    You should deploy CoS on R1, R3 and R4.

  3. C

    You should deploy CoS on S1, R1, R2, R3, R4, and S2.

  4. D

    You should deploy CoS on R1, R2, R3, and R4.

Show answer and explanation

Correct answer: D

Question 8 Multiple choice

Click the Exhibit button. Traffic congestion is noticed when sending traffic from S1 to S2. You must design a CoS deployment to address the traffic congestion issue.
Referring to the exhibit, which two statements are true? (Choose two.)

  1. A

    You should use BA classifiers on R1.

  2. B

    You should use multifield classifiers on R2, R3, and R4.

  3. C

    You should use multifield classifiers on R1.

  4. D

    You should use BA classifiers on R2, R3, and R4.

Show answer and explanation

Correct answers: A, B

Question 9 Multiple choice

What are two Layer 2 traffic tunneling schemes that are supported in a Juniper Networks IP fabric? (Choose two.)

  1. A

    EVPN

  2. B

    MPLSoGRE

  3. C

    GENEVE

  4. D

    VXLAN

Show answer and explanation

Correct answers: A, D

Question 10 Multiple choice

Your company is deploying a private cloud based on OpenStack and has selected Contrail Networking as its SDN controller.

Which two statements are true in this scenario? (Choose two.)

  1. A

    Underlay tunnels are established between virtualized and bare-metal servers.

  2. B

    MPLS over UDP tunnels are supported.

  3. C

    Overlay tunnels are established between virtualized and bare-metal servers.

  4. D

    MPLS over GRE tunnels are supported.

Show answer and explanation

Correct answers: C, D