Cloud, Specialist (JNCIS-Cloud) - JN0-412 Exam Practice Test

Question 1

A developer is logged into OpenStack and is trying to bring up a recently assigned project but is rejected at the identify source.
Which log file should you review to identify this problem?

A. var/log/swift.log

B. var/log/apache2/horizon.log

C. var/log/neutron.log

D. /var/log/keystone.log

Correct Answer: D

Question 2

You have configured an SR-IOV interface on a virtual host machine in your Contrail network environment. You discover that analytics data is not being recorded for traffic to the customer's VM that uses the SR-IOV interface.
Which two statements are true in this scenario? (Choose two.)

A. The data of packets going to the VM does not go through the vRouter on the host.

B. You must use the tap interface on the Contrail vRouter to collect SR-IOV analytics data.

C. The SR-IOV interface must be re-added to the analytics engine.

D. You cannot perform analytics on the SR-IOV interface traffic.

Correct Answer: B,D

Question 3

You are asked to create a connection between a VM and two ports on a QFX leaf device in the fabric.
Which Contrail feature must you configure to accomplish this task?

A. virtual port group

B. virtual network policy

C. floating IP

D. virtual network with route leaking

Correct Answer: A

Question 4

A vRouter includes which two containers? (Choose two.)

A. dns

B. nodemgr

C. agent

D. api

Correct Answer: B,C

Question 5

Click the exhibit button.

While completing the install of OpenStack, you upload the Cirros image the CLI to validate the Glance install. However, it times out after a short time. You review the logs located at /var/log/glance/api.log.
Referring to the exhibit, which action will solve this problem?

A. Get a new Cirros image; the current image is corrupted.

B. Replace the schema image file with the correct name of the image.

C. Update the GLANCE DBPASS in the keystone.conf file.

D. Set the glance.api version to version 1 and retry the upload.

Correct Answer: A

Question 6

What are two networking components of OpenStack? (Choose two.)

A. Ironic

B. Barbican

C. Neutron

D. Nova

Correct Answer: C,D

Question 7

Your customer deletes a Contrail service instance VM directly from OpenStack.
In this scenario, which statement is correct?

A. The service instance will be deleted from Contrail.

B. Contrail will spawn a new service instance VM.

C. The VM will be deleted and Contrail will show the service instance as inactive.

D. OpenStack will spawn a new service instance VM.

Correct Answer: C

Question 8

What are three ways to deploy an MX Series device as an SDN gateway? (Choose three.)

A. Configure it as an L4 gateway.

B. Configure it as an application gateway.

C. Configure it as an SDN-to-SDN gateway.

D. Configure it as an L3 gateway.

E. Configure it as an L2 gateway.

Correct Answer: C,D,E

Juniper Cloud, Specialist (JNCIS-Cloud) - JN0-412 Exam Practice Test

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