Data Center, Professional (JNCIP-DC) (JN0-683) Free Practice Test

Question 1

Which two statements describe the function of the Designated Forwarder (DF) in an EVPN- VXLAN all-active multihoming scenario? (Choose two.)

A. It is responsible for forwarding BUM traffic to the multihomed segment.

B. It prevents duplicate BUM traffic from being sent to the multihomed CE device.

C. It forwards all unicast known traffic for the segment.

D. It is elected per Ethernet Segment and VLAN.

Correct Answer: A,B

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Question 2

You are asked to deploy 100 QFX Series devices using ZTP. Each QFX5120 requires a different configuration.
In this scenario, what are two components that you would configure on the DHCP server?
(Choose two.)

A. the MAC address for each QFX5120

B. the MAC address of the FTP server

C. the management IP address for each QFX5120

D. the IP address of the FTP server

Correct Answer: C,D

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Question 3

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

A. Unnumbered BGP requires that family inet is configured on each interface.

B. Unnumbered BGP requires that family inet6 is configured on each interface.

C. Unnumbered BGP peering automatically provisions IPv6 peering.

D. Unnumbered BGP peering automatically provisions IPv4 peering.

Correct Answer: B,C

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Question 4

Click the Exhibit button. Both DC and DC2 are using EVPN-VXLAN technology deployed using an ERB architecture. A server on the Red VLAN must communicate with a server on the Green VLAN. The Blue VLAN in DC and DC2 needs to be the same VLAN.
Which statement is correct?

A. A lean super spine device must be added to DC and DC2; all VLANs must be stretched to the lean super spine device and the lean super spine devices must stitch all the VLANs together.

B. The eight spine devices must be configured as border spine devices; a full mush interconnect must exist between all eight spine devices and the Blue VLAN must be stitched together

C. An interconnect is required between four leaf devices in the services blocks; the Red VLAN and the Green VLAN must be stitched and the Blue VLAN must be stretched.

D. An interconnect is required between the four SRX Series devices; the Blue VLAN must be stretched and a transit VNI must be added for the Red and Green VLANs.

Correct Answer: D

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Question 5

A local VTEP has two ECMP paths to a remote VTEP.
Which two statements are correct when load balancing is enabled in this scenario? (Choose two.)

A. The source port in the UDP header is used to load balance VXLAN traffic.

B. The inner packet fields are not used in the hash for load balancing.

C. The inner packet fields are used in the hash for load balancing.

D. The destination port in the UDP header is used to load balance VXLAN traffic.

Correct Answer: A,C

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Question 6

A Junos switch boots with a factory-default or zeroized configuration and the ZTP process takes over. Which three statements are correct about this ZTP process? (Choose three.)

A. The switch downloads and applies assigned configuration.

B. The switch archives the old software version to the storage network.

C. The switch discovers a DHCP server and obtains an IP address.

D. The switch verifies the software version listed in DHCP options.

E. The switch verifies the address of management elements in the network.

Correct Answer: A,C,D

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Question 7

Host A is connected to vlan 100 on lead. Host B is connected to vlan 200 on leaf1. Host A and Host B ate unable to communicate. You have reviewed the touting and your hosts have the correct default route (.1) Referring to the exhibit, which two commands will solve the problem? (Choose two.)

A. set interfaces irb unit 100 family inet address 192-168.100.1

B. delete vlans vn200 13-interface irb.200

C. set vlans vn100 13-interface irb.100

D. set routing-options static route 0.0.0.0/0 next-hop 192.168.200.10

Correct Answer: C,D

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Question 8

Why is a designated forwarder required in a multihomed CE-to-PE VXLAN environment using EVPN signalling?

A. The designated forwarder is required to prevent a traffic storm from being received on multihomed hosts.

B. The designated forwarder is required to prevent packets from looping between the PEs.

C. The designated forwarder is required to prevent flooding of MAC addresses to multihomed hosts.

D. The designated forwarder is required to prevent duplicate packets from being received on multihomed hosts.

Correct Answer: D

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Question 9

Click the Exhibit button.

The 192.168.0.0/24 route is being advertised into your IP fabric by the leaf device in AS 65512.
In this scenario, which two statements are correct? (Choose two.)

A. By default, both spine devices will reject the route learned from the leaf device.

B. By default, both spine devices will accept and install the route learned from the leaf device.

C. By default, each spine device will not advertise this route to all other peer leaf devices.

D. By default, each spine device will advertise this route to all other peer leaf devices.

Correct Answer: B,C

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Juniper Data Center, Professional (JNCIP-DC) (JN0-683) Free Practice Test