Juniper JNCDS-DC JN0-1302 Questions & Answers

• Question 31:

  Your developers have created an application that uses iSCSI for data storage. Although iSCSI is inherently lossless, they are concerned about potential latency issues due to network congestion and retransmitted packets.

  In this scenario, what will ensure that the iSCSI traffic is delivered in a timely manner?

  A. quantized congestion notification

  B. priority flow control

  C. data center bridging exchange

  D. enhanced transmission selection

  Correct Answer: A

• Question 32:

  According to Juniper Networks, what are two recommendations for implementing data center security? (Choose two.)

  A. Perimeter security in a data center is normally performed on virtual devices.

  B. Perimeter security in a data center is normally performed on physical devices.

  C. DDoS protection is implemented at the perimeter of the data center.

  D. DDoS protection is implemented at the core of the data center.

  Correct Answer: BC

• Question 33:

  Your Junos device is configured with dual Routing Engines.

  In this scenario, which feature must be activated to preserve both the control and forwarding planes?

  A. graceful Routing Engine switchover only

  B. graceful Routing Engine switchover with graceful restart and non-stop routing

  C. graceful Routing Engine switchover with graceful restart

  D. graceful Routing Engine switchover with non-stop routing

  Correct Answer: D

• Question 34:

  Click the Exhibit button.

  

  For a fully configured and functional IP fabric underlay as shown in the exhibit, how many external BGP neighbors are expected to be in established state for Leaf 1?

  A. 4

  B. 5

  C. 2

  D. 3

  Correct Answer: C

• Question 35:

  You must implement high availability features in the design for a data center. Every network device in this design will have dual routing engines.

  In this scenario, which two high availability features should you use? (Choose two.)

  A. GRES with NSR

  B. GRES with NSB

  C. NSR with graceful restart

  D. NSR with NSB

  Correct Answer: AB

• Question 36:

  What are two overlay protocols that should be considered in your data center design when using an IP fabric underlay? (Choose two.)

  A. OSPF

  B. VXLAN

  C. MPLSoGRE

  D. VPLS

  Correct Answer: BD

• Question 37:

  You must design a data center (DC) connectivity solution for four data centers located in the US, Europe, Africa, and China.

  Which three statements are correct in this scenario? (Choose three.)

  A. VPLS can provide connectivity for four or more DC deployments.

  B. LDP Layer 2 circuits learn MAC addresses in the data plane.

  C. BGP Layer 2 VPNs are required due to latency requirements.

  D. PE routers in an EVPN environment advertise MAC addresses using BGP.

  E. EVPN can provide connectivity for four or more DC deployments.

  Correct Answer: ADE

• Question 38:

  A customer has concerns about various groups having the ability to easily access their corporate network infrastructure. They want to implement tighter controls for network infrastructure system access.

  Which three actions will accomplish this task? (Choose three.)

  A. Open console port access.

  B. Disable root access.

  C. Use a secure access VPN.

  D. Provide local passwords.

  E. Use RADIUS accounting.

  Correct Answer: BCE

• Question 39:

  Two data centers must be able to operate with a stretched Layer 2 network. You are concerned about unnecessary traffic on the Data Center Interconnect (DCI). You do not want packets to trombone over the DCI, have excessive unknown unicast packet flooding over the DCI, or have excessive ARP flooding over the DCI.

  Which technology satisfies the requirements in this scenario?

  A. EVPN

  B. IPsec

  C. VPLS

  D. GRE over IP

  Correct Answer: A

• Question 40:

  Which three statements about Contrail Networking are true? (Choose three.)

  A. It is used to service chain network functions.

  B. It is used to program physical network functions.

  C. It is used to virtualize and program networks.

  D. It is used to virtualize and program compute.

  E. It is used to create distributed cloud storage.

  Correct Answer: ACE