English Sample Exam Exin Foss Juno 201505

Sample Questions

EXIN Foundation

Certificate in Open

Stack Software

Edition May 2015

Sample questions EXIN Foundation Certificate in

Open Stack Software [FOSS.EN]

2

Content

Introduction 3

Sample questions 4

Answer key 8

Evaluation 16

Copyright 2015 EXIN

All rights reserved. No part of this publication may be published, reproduced, copied or stored in a

data processing system or circulated in any form by print, photo print, microfilm or any other

means without written permission by EXIN. The OpenStack Word Mark and OpenStack Logo

are either registered trademarks/service marks or trademarks/service marks of the OpenStack

Foundation, in the United States and other countries and are used with the OpenStack

Foundation's permission. We are not affiliated with, endorsed or sponsored by the OpenStack

Foundation, or the OpenStack community.



3

Introduction

These are 20 sample multiple-choice questions for the exam EXIN Foundation

Certificate in OpenStack Software (FOSS.EN) Version Juno.

Each question has a number of possible answers, of which only one is the

correct answer.

The maximum number of points that can be obtained for this Sample Exam

is 20. If you obtain 13 points or more you have passed this sample.

The time allowed is for this sample is 30 minutes.

Good luck!



4

Sample questions 1 / 20

Through which component is identity management served?

A. Neutron, for this module takes care of managing networks and IP addresses.

B. Keystone, for this module provides a user directory mapped to services they can

access.

C. Trove, for this module is the home of the provisioning of database engines.

2 / 20

What is the role of the OpenStack Foundation?

A. The OpenStack Foundation wants to commercialise the OpenStack licensing

model.

B. The OpenStack Foundation wants to help achieve the OpenStack mission

providing shared resources.

C. The OpenStack Foundation wants to make sure IaaS is developed under local

legislations.

D. The OpenStack Foundation wants to promote private modular cloud and hybrid

Cloud computing.

3 / 20

What Nova component receives http requests, converts commands and communicates

with other components?

A. Nova-compute

B. Nova-consoleauth

C. Nova-api

D. Nova-novncproxy

4 / 20

What command should be used in order to create an instance?

A. glance image-list

B. nova boot

C. service nova start

D. service nova status

5 / 20

What is a function of the Nova service?

A. It provides creation of new flavors.

B. It starts and manages instances.

C. It supports creating boot storage volumes.

D. It provides data reporting to a variety of consumers.



5

6 / 20

What functionality of Glance enables virtual machines to be backed up quickly?

A. The distribution of bootable disk images

B. The metadata definitions catalogue

C. The storage and cataloguing of snapshots

D. The storage of bootable disk images

7 / 20

What element of the Swift architecture is responsible for managing the mapping of

user created folders within the Object store service?

A. Proxy server

B. Container server

C. Account server

D. Object server

8 / 20

What is a use case for Object storage?

A. Workloads requiring long-term persistence of data.

B. File sharing of information and quick accessibility.

C. Situations where the data frequently changes.

D. To use as primary storage for a database or file system.

9 / 20

Which component of Cinder selects the optimal block storage provider node on which

to create a volume?

A. cinder-api

B. cinder-backup

C. cinder-volume

D. cinder-scheduler

10 / 20

What does Cinder use the volume type for?

A. Configuring the block storage to use the message broker

B. Creating the database tables for the block storage service

C. Determining which type of backend to use

D. Registering the block storage with the identity service



6

11 / 20

What is a Ring?

A. A set of physical storage devices that are isolated from storage devices in other

zones

B. A mapping of account, container and object names to the physical location on disk

of those entities

C. A part of the cluster that is usually located remotely from the data center

12 / 20

Which component of Manila is responsible for the creation of file system shares?

A. File Shares Service

B. Filter Scheduler

C. Reference Provider

13 / 20

Keystone plays an important role in the authorization of OpenStack service requests.

Which data item is used between OpenStack components to authenticate and

authorize these requests?

A. Tenant token

B. Temporary token

C. Login and key

D. Login and password

14 / 20

What is the relationship between users and tenants?

A. A tenant can be an operator for all users.

B. A user aggregates the number of resources in each service

C. Tenants can be added to any role in a user

D. Users are bound to a tenant by assigning them a role on that tenant

15 / 20

Which types of private information can Barbican handle?

A. Asymmetric keys only

B. Symmetric keys only

C. Symmetric keys and asymmetric keys

D. Symmetric keys, asymmetric keys and raw secrets



7

16 / 20

Neutron provides several networking functionalities. Which of these was already

available as part of Nova Networking?

A. SDN

B. Tunneling

C. API extensions for OpenStack networking

D. IP Address Management (IPAM)

17 / 20

Which of the following Tenant Operations can be executed by a Tenant User?

A. Creating Instances.

B. Managing tenant access and security.

C. Managing compute and storage resources.

D. Managing Network Resources.

18 / 20

Which command creates a new Heat stack?

A. $ heat stack-create new_stack --template-file --parameters

B. $ heat stack-update mystack --template-file --parameters

C. $ heat stack-show new_stack

D. $ heat template-validate --template-file

19 / 20

What action is required to run Horizon?

A. Modify the ceilometer.conf.

B. Specify the host for your OpenStack Identity Service endpoint.

C. Configure kernel networking parameters.

D. Ensure that the controller node has at least several gigabytes of space available in

/var/lib/glance/images/

20 / 20

What API provides Zaqar?

A. Amazon EC2 API

B. OpenStack Compute API

C. RESTful API

D. special Admin API for privileged users to perform administrative actions



8

Answer key 1 / 20

Through which component is identity management served?

A. Neutron, for this module takes care of managing networks and IP addresses.

B. Keystone, for this module provides a user directory mapped to services they can

access.

C. Trove, for this module is the home of the provisioning of database engines.

A. Incorrect. Identity management is served through Keystone.

B. Correct. See h6c68s.b.01_stu page 2-29.

C. Incorrect. Identity management is served through Keystone.

2 / 20

What is the role of the OpenStack Foundation?

A. The OpenStack Foundation wants to commercialise the OpenStack licensing

model.

B. The OpenStack Foundation wants to help achieve the OpenStack mission

providing shared resources.

C. The OpenStack Foundation wants to make sure IaaS is developed under local

legislations.

D. The OpenStack Foundation wants to promote private modular cloud and hybrid

Cloud computing.

A. Incorrect. OpenStack has nothing to do with commercialisation of the model

B. Correct. This is the only correct answer. See slide deck 2015_01_06_M02:

Introduction to Open Stack, Slide 10.

C. Incorrect. There is no link between local legislations and the development of IaaS

as part of the role of the OpenStack Foundation

D. Incorrect. Cloud computing is the model used for OpenStack. It is not the role of the

foundation itself



9

3 / 20

What Nova component receives http requests, converts commands and communicates

with other components?

A. Nova-compute

B. Nova-consoleauth

C. Nova-api

D. Nova-novncproxy

A. Incorrect. Nova-Compute manages the communications with the Hypervisor and

Virtual Machines.

B. Incorrect. Nova-consoleaouth authorizes console access based on user/project/role.

C. Correct. Nova-AP receives http requests, converts commands and communicates

with other components via the queue or http (in the case of object store). It Accepts

and responds to end user compute API calls. See h6c68s.b.01_stu page 128 Nova

Architecture Section 4-8.

D. Incorrect. Nova-novncproxy provides a proxy for accessing instances through vnc

connections.

4 / 20

What command should be used in order to create an instance?

A. glance image-list

B. nova boot

C. service nova start

D. service nova status

A. Incorrect. This command is used to list available images to boot.

B. Correct. Nova OpenStack Compute Service. Module 4. Page 4-21. The nova boot

command is used to create the instance. The whole command sentence is the

following: nova boot -- image "" --flavor . The

two primary parameters in the command can be determined through the use of the

glance image-list and nova flavor-list

C. Incorrect. This command is used to bring up the service.

D. Incorrect. This command is used to check if the service is started.



10

5 / 20

What is a function of the Nova service?

A. It provides creation of new flavors.

B. It starts and manages instances.

C. It supports creating boot storage volumes.

D. It provides data reporting to a variety of consumers.

A. Incorrect. This is a function of Horizon.

B. Correct. This is a function of Nova. See h6c68s.b.01_stu chapter4, page 4.4.

C. Incorrect. This is a function of Cinder.

D. Incorrect. This is a function of Ceilometer.

6 / 20

What functionality of Glance enables virtual machines to be backed up quickly?

A. The distribution of bootable disk images

B. The metadata definitions catalogue

C. The storage and cataloguing of snapshots

D. The storage of bootable disk images

A. Incorrect. This functionality is not specific for backing up virtual machines

B. Incorrect. This functionality is not specific for backing up virtual machines

C. Correct. See lit h6c68s.c.00_stu 5-4

D. Incorrect. This functionality is not specific for backing up virtual machines

7 / 20

What element of the Swift architecture is responsible for managing the mapping of

user created folders within the Object store service?

A. Proxy server

B. Container server

C. Account server

D. Object server

A. Incorrect. Proxy server accepts incoming requests via the OpenStack Object API or

just raw HTTP.

B. Correct. Container servers manage a mapping of containers (i.e folders) within the

object store service. See h6c68s.b.01_stu page 343.

C. Incorrect. Account servers manage accounts defined with the object storage

service.

D. Incorrect. Object servers manage actual objects (i.e. files) on the storage nodes.



11

8 / 20

What is a use case for Object storage?

A. Workloads requiring long-term persistence of data.

B. File sharing of information and quick accessibility.

C. Situations where the data frequently changes.

D. To use as primary storage for a database or file system.

A. Incorrect. This is a use case for block storage.

B. Correct. This is a use case for object storage. See h6c68s.b.01_stu page 338.

C. Incorrect. This is a use case for block storage.

D. Incorrect. This is a use case for block storage.

9 / 20

Which component of Cinder selects the optimal block storage provider node on which

to create a volume?

A. cinder-api

B. cinder-backup

C. cinder-volume

D. cinder-scheduler

A. Incorrect. This component accepts API requests and routes them to cinder-volume

for action

B. Incorrect. This component routes information between the block storage service

process and the database that stores the volume states

C. Incorrect. This component responds to R/W requests to the object storage

database.

D. Correct. See lit h6c68s.c.00_stu 8-9

10 / 20

What does Cinder use the volume type for?

A. Configuring the block storage to use the message broker

B. Creating the database tables for the block storage service

C. Determining which type of backend to use

D. Registering the block storage with the identity service

A. Incorrect. This is a step in the installation process of Cinder.

B. Incorrect. This is a step in the installation process of Cinder.

C. Correct. See lit h6c68s.c.00_stu 8-16.

D. Incorrect. This is a step in the installation process of Cinder.



12

11 / 20

What is a Ring?

A. A set of physical storage devices that are isolated from storage devices in other

zones

B. A mapping of account, container and object names to the physical location on disk

of those entities

C. A part of the cluster that is usually located remotely from the data center

A. Incorrect. This is a zone.

B. Correct. This is a ring. See h6c68s.b.01_stu page 350.

C. Incorrect. This is a region.

12 / 20

Which component of Manila is responsible for the creation of file system shares?

A. File Shares Service

B. Filter Scheduler

C. Reference Provider

A. Correct. See https://wiki.openstack.org/wiki/Manila/design

B. Incorrect. The filter scheduler is used for filtering backends based on predefined

parameters

C. Incorrect. The reference provider is a driver for shared file systems

13 / 20

Keystone plays an important role in the authorization of OpenStack service requests.

Which data item is used between OpenStack components to authenticate and

authorize these requests?

A. Tenant token

B. Temporary token

C. Login and key

D. Login and password

A. Correct. The tenant token is created by Keystone and checked when service

requests are made with it. See h6c68s.b.01_stu pag 3-12.

B. Incorrect. The temporary token is only used to fetch the tenant list for a user.

C. Incorrect. Login and key may only be used for initial authentication to Keystone.

D. Incorrect. Login and password may only be used for initial authentication to

Keystone.



13

14 / 20

What is the relationship between users and tenants?

A. A tenant can be an operator for all users.

B. A user aggregates the number of resources in each service

C. Tenants can be added to any role in a user

D. Users are bound to a tenant by assigning them a role on that tenant

A. Incorrect. A user can be an operator for all tenants.

B. Incorrect. Incorrect. A tenant aggregates the number of resources in each service

C. Incorrect. Users can be added to any role either globally or in a tenant.

D. Correct. See lit. h6c68s.c.00_stu 3-17

15 / 20

Which types of private information can Barbican handle?

A. Asymmetric keys only

B. Symmetric keys only

C. Symmetric keys and asymmetric keys

D. Symmetric keys, asymmetric keys and raw secrets

A. Incorrect. Barbican also handles symmetric keys and raw secrets

B. Incorrect. Barbican also handles asymmetric keys and raw secrets

C. Incorrect. Barbican also handles raw secrets

D. Correct. See Lit. A 14-18 and Barbican getting started guide:

https://github.com/cloudkeep/barbican/wiki/Barbican-Getting-Started-Guide

16 / 20

Neutron provides several networking functionalities. Which of these was already

available as part of Nova Networking?

A. SDN

B. Tunneling

C. API extensions for OpenStack networking

D. IP Address Management (IPAM)

A. Incorrect. SDN functionality was added in Neutron.

B. Incorrect. Tunneling functionality was added in Neutron.

C. Incorrect. API extensions were added in Neutron.

D. Correct. IPAM was available before Neutron as it was part of Nova Networking. See

h6c68s.b.01_stu, page 7-11/12.



14

17 / 20

Which of the following Tenant Operations can be executed by a Tenant User?

A. Creating Instances.

B. Managing tenant access and security.

C. Managing compute and storage resources.

D. Managing Network Resources.

A. Correct. See h6c68s.b.01_stu, page 228 (6-18).

B. Incorrect. Only for Tenant Admins.

C. Incorrect. Only for Tenant Admins.

D. Incorrect. Only for Tenant Admins.

18 / 20

Which command creates a new Heat stack?

A. $ heat stack-create new_stack --template-file --parameters

B. $ heat stack-update mystack --template-file --parameters

C. $ heat stack-show new_stack

D. $ heat template-validate --template-file

A. Correct: To create a new stack from the CLI, you can use the stack-create

command h6c68s.c.00_stu.part2 11-20

B. Incorrect: updates an existing stack from a modified template file.

http://docs.openstack.org/user-guide/content/heat-stack-create.html

C. Incorrect: displays the stack status and details through the CLI.

h6c68s.c.00_stu.part2 11-21

D. Incorrect: You can use the template-validate command to validate a template file

without creating a stack from it. http://docs.openstack.org/user-guide/content/heat-

stack-create.html

19 / 20

What action is required to run Horizon?

A. Modify the ceilometer.conf.

B. Specify the host for your OpenStack Identity Service endpoint.

C. Configure kernel networking parameters.

D. Ensure that the controller node has at least several gigabytes of space available in

/var/lib/glance/images/

A. Incorrect. That is necessary for Ceilometer. See:

http://docs.openstack.org/juno/config-reference/content/section_ceilometer.conf.html

B. Correct. See h6c68s.b.01_stu module 6 and

http://docs.openstack.org/developer/horizon/topics/deployment.html

C. Incorrect. That's for preconfiguring Neutron. See:

http://docs.openstack.org/juno/install-guide/install/apt/content/neutron-compute-

node.html

D. Incorrect. Incorrect. That's for adding the Image Service. See:

http://docs.openstack.org/juno/install-guide/install/apt/content/ch_glance.html



15

20 / 20

What API provides Zaqar?

A. Amazon EC2 API

B. OpenStack Compute API

C. RESTful API

D. special Admin API for privileged users to perform administrative actions

A. Incorrect: That is nova-api (It supports the OpenStack Compute API, Amazon EC2

API, and a special Admin API for privileged users to perform administrative actions)

B. Incorrect: That is nova-api (It supports the OpenStack Compute API, Amazon EC2


C. Correct: The service features a fully RESTful API that developers can use to send

messages between various components of their Software-as-a-Service (SaaS) and

mobile applications h6c68s.c.00_stu.part2 14-12.

D. Incorrect: That is nova-api (It supports the OpenStack Compute API, Amazon EC2




16

Evaluation

The table below shows the correct answers to the questions in this set of sample

questions.

Order Answer Specification

1 B What is OpenStack

2 B What is OpenStack

3 C Compute

4 B Compute

5 B Compute

6 C Storage

7 B Storage

8 B Storage

9 D Storage

10 C Storage

11 B Storage

12 A Storage

13 A Identity Management

14 D Identity Management

15 D Identity Management

16 D Networking

17 A Support Services

18 A Support Services

19 B Support Services

20 C Support Services



17

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English Sample Exam Exin Foss Juno 201505