EMT Practice Test

1. Question Content...

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Question1: Refer to the exhibit.

Referring to the exhibit, when the user attempts the API request, which HTTP return code is generated by OpenStack?

Question2: When using Contrail Analytics for underlay overlay mapping, which statement is true?

Question3: You are asked to allow traffic to be forwarded between two Contrail virtual networks. You must use a virtual stateful firewall to provide the security between the two networks. Finally, you must use a virtual firewall that bridges between the two networks.
Which two statements describe how to accomplish this task? (Choose two.)

Question4: What are three mechanisms supported by the Neutron ML2 plugin? (Choose three.)

Question5: Which two statements are true regarding the Network Function Virtualization (NFS) framework? (Choose two.)

Question6: Which OpenStack project with networking components must be enabled to provision Contrail in an OpenStack environment?

Question7: Refer to the exhibit.

The exhibit shows that the curl command is creating a virtual network in which project?

Question8: Your customer deletes a Contrail service instance VM directly from OpenStack.
In this scenario, which statement is correct?

Question9: Refer to the exhibit.

A Contrail service instance is created in a scale-out mode with three instances (Sl-1, Sl-2, and Sl-3) between the left virtual network and the right virtual network.
Referring to the exhibit, which two statements are correct in this scenario?
(Choose two.)

Question10: The Sandesh protocol enables which infrastructure model?

Question11: Refer to the exhibit.

After provisioning a group of 20 VMs, the client reports that one of the VMs has unidirectional traffic problem.
Referring to the exhibit, what is causing the problem?

Question12: What does the Contrail Analytics service do with flows that are greater than or equal to the sampling threshold?

Question13: Refer to the exhibit.

Referring to the exhibit, you notice that the compute-4 and compute-5 nodes are not in an operational state.
What caused this problem?

Question14: Which two statements about Contrail ZooKeeper are true? (Choose two.)

Question15: 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.)

Question16: You want to deploy an application to the cloud. You need to be able to manage the application as well as update the operating system and related services running in the virtual machine.
Which type of cloud service should you choose in this scenario?

Question17: You are using OpenStack as the orchestrator for your data center. You need to instantiate several instances of a webserver. There is a requirement that each webserver VM must have six VCPUs and 32 GB of RAM.
Where in OpenStack's Web user interface would you set up these resources?

Question18: What is needed to move compute resources between cloud environment?

Question19: Which feature of an SDN continuously monitors and analyzes the health of the network?

Question20: Refer to the exhibit.


Referring to the exhibit, what does the IP address 10.1.1.2 refer to in the api_server.conf file in Contrail?

Question21: Which role does OpenStack serve in SDN?

Question22: Which statement is true regarding a network underlay in an SDN environment?

Question23: What are three ways SDN provides multitenancy? (Choose three.)

Question24: You are not able to view a specific Glance image under a project named Administrator in OpenStack.
However, you are able to view the same image in a different project named ProjectA.
What is the problem in this scenario?

Question25: Which command displays routes in a vRouter VRF?

Question26: Your company has decided to instantiate an OpenStack cluster based on the Mitaka release. Since OpenStack is new to your environment, you want to generate diagnostic snapshots to aid in troubleshooting issues that may arise.
Which action will accomplish this task?

Question27: Refer to the exhibit.

You have deployed a cloud networking environment. Referring to the exhibit, what is the role of the node indicated by the arrow?

Question28: Refer to the exhibit.

You are trying to connect virtual machine A to virtual machine B.
Virtual machine A belongs to the security group WebServers. Virtual machine B belongs to the default security group.
Referring to the exhibit, which two actions would you perform on the default security group to allow access to virtual machine A? (Choose two.)

Question29: 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?

Question30: What are two Keystone endpoint types? (Choose two.)

Question31: You have deployed a load-balancing service for a customer in your Contrail cloud networking environment for their data cache system. Due to the network capacity requirements, the caching servers must be migrated to a different rack of equipment within the data center.
Which two statements are true in this scenario? (Choose two.)

Question32: What are three data encapsulation methods used by a Contrail compute node? (Choose three.)

Question33: When creating service chains in a cloud networking environment, what is the purpose of a service instance?

Question34: Refer to the exhibit.
$ neutron net-show secret_network

You have created a new network in a Juniper OpenStack environment and now you want to share the object with a project that has an ID of e28769db97d9449da658bc6931fc683.
Which command will allow the object to be shared?

Question35: Which two types of data are collected by Contrail Analytics nodes? (Choose two.)

Question36: Refer to the exhibit.

Virtual machine VM-1 is spawned on a compute node Compute-1. VM-1 is not able to ping PC-1, which is located outside of the SDN cloud. You want to run packet captures to trace the packet initiated by VM-1 towards PC-1.
Referring to the exhibit, which three interfaces would you use to accomplish this task? (Choose three.)

Question37: You are implementing an OpenStack environment and need to install the Glance service on the control node.
Which two actions must take place to successfully complete this action? (Choose two.)

Question38: Which statement is true regarding Virtual Network Functions (VNF)?

Question39: What is the role of an orchestration platform in a cloud networking environment?

Question40: What are two valid service VMs in a service chain? (Choose two.)

Question41: You are required to deploy a network service in between two customer sites without modifying IP addresses. You are using Contrail to manage your network services.
How would you accomplish this task?

Question42: Refer to the exhibit.

You have a Contrail providing cloud services to Customer A.
Customer A wants to add a packet capture service to their network to analyze traffic flowing to and from the Internet.
Referring to the exhibit, which statement is true?

Question43: What is the fundamental component of a heat template?

Question44: Refer to the exhibit.

You have configured your Contrail cluster to mirror traffic going between a network called frontend and a network called backend, however, the Wireshark window is not showing any packets being mirrored.
Referring to the exhibit, which statement is correct?

Question45: Which three load-balancing algorithms are supported by Contrail's LBaaS feature? (Choose three.)

Question46: Which protocol is used to exchange routes between the Contrail controller and compute nodes?

Question47: What are two features of software containers? (Choose two.)

Question48: You want to deploy an application to the cloud so that the application instances can be dynamically mirrored. You want to manage only the application, leaving all other management to the cloud provider.
Which type of cloud service should you choose in this situation?

Question49: Which two OpenStack projects contain networking components? (Choose two.)

Question50: You are deploying a network infrastructure to provide Network Functions Virtualization to your organization. The architecture must comply with the ETSI NFV framework.
Which two statements are true in this scenario? (Choose two.)

Question51: Creating a Contrail service chain requires the configuration of which three elements? (Choose three).

Question52: You are required to implement a Contrail service that will automatically increase network resources for that service when under high traffic loads, and reduce network resources for that service under low traffic loads.
Which configuration steps will accomplish this task?

Question53: You are asked to create a Contrail service instance between two virtual networks. The left virtual network is a private virtual network. The routes from the left virtual network VRF should not be leaked into the right virtual network VRF.
Which Contrail service instance type would you choose in this scenario?

Question54: Which two statements are supported when building Heat templates? (Choose two.)

Question55: Refer to the exhibit.

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

Question56: What are two advantages of SDN? (Choose two.)

Question57: 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?

Question58: Which mechanism creates unique tenants within OpenStack?

Question59: In which format are the results displayed when browsing with the Contrail Analytics API?

Question60: In which type of database is Contrail analytics node information stored?

Question61: According to Juniper Networks, where does the Contrail Cloud Platform align in the Network Functions Virtualization solution architecture?

Question62: Two virtual machines in different virtual networks are not able to communicate with each other.
Which two troubleshooting steps would you help to identify this problem? (Choose two.)

Question63: You want to deploy an application to the cloud. You need to control the amount of RAM, storage, CPU cores, networking ports, and IP addresses.
Which type of cloud service should you choose in this scenario?

Question64: You want to monitor traffic between two virtual machines belonging to different virtual networks.
What are two ways to accomplish this task? (Choose two.)

Question65: Which role does Contrail serve in SDN?