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SVT710S - SYSTEM VIRTUALISATION - 2ND OPP - JULY 2022 |
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nAm I BIA unlVERSITY
OF SCIEnCE Ano TECHnOLOGY
FACULTY OF COMPUTING AND INFORMATICS
DEPARTMENTOF COMPUTERSCIENCE
QUALIFICATION: BACHELOR OF COMPUTER SCIENCE
QUALIFICATION CODE: 07BACS 07BCMS
LEVEL: 7
COURSE: SYSTEM VIRTUALISATION
'
COURSE CODE: SVT710S
DATE: JULY 2022
PAPER: THEORY
DURATION: 3 HOURS
MARKS: 70
SECOND OPPORTUNITY/SUPPLEMENTARY EXAMINATION QUESTION PAPER
EXAMINER(S)
MR. SHOOPALA NAMBAHU
MODERATOR:
MR. ANTON LIMBO
THIS QUESTION PAPER CONSISTS OF 5 PAGES
(Excluding this front page)
INSTRUCTIONS
1. Answer ALL the questions on the answer scripts.
2. Write clearly and neatly.
3. Number the answers clearly.
PERMISSIBLE MATERIALS
1. Calculator.
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Section A: (Multiple choice)
(20 Marks)
1. ____
computing refers to applications and services that run on a distributed network
using virtualized resources.
a) Distributed
b) Cloud
c) Docker
d) Parallel
2. Which of the following is essential concept related to Cloud?
a) Reliability
b) Productivity
c) Abstraction
d) All of the mentioned
3. Which of the following is a type of virtualization?
a) Storage
b) Desktop
c) CPU
d) All of the above
4. Which of the following cloud concept is related to pooling and sharing of resources?
a) Polymorphism
b) Abstraction
c) Virtualization
d) None of the mentioned
5. Cloud computing is an abstraction based on the notion of pooling physical resources and
presenting them as a ____
resource.
a) real
b) virtual
c) cloud
d) none of the mentioned
6. An array of disks is more likely to fail compared to a single disk. How is it that RAID arrays
still manage to provide more data protection compared to a single disk?
a) Using either mirroring or striping
b) Using either mirroring or parity
c) Using better quality disks
d) Using dedicated hardware
7. ____
refers to the location and management of the cloud's infrastructure.
a) Service
b) Deployment
c) Application
d) None of the mentioned
8. 4. Which of the following is deployment model?
a) public
b) private
c) hybrid
d) all of the mentioned
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9. Which of the following is best known service model?
a)SaaS
b) laaS
c) PaaS
d) All of the mentioned
10. Which of the following will be the host operating system for Windows Server?
a) Virtual Logix VLX
b) Microsoft Hyper-V
c) Xen
d) All of the mentioned
11. Which of the following dimension is related to organization's boundaries?
a) Physical location of data
b) Ownership
c) Security boundary
d) All of the mentioned
12. Which of the following is provided by ownership dimension of Cloud Cube Model?
a) Proprietary
b) Owner
c) Security ownership
d) All of the mentioned
13. Which of the following is another name for system virtual machine?
a) Hardware virtual machine
b) Software virtual machine
c) Real machine
d) None of the mentioned
14. ____
cloud is one where the cloud has been organized to serve a common function
or purpose.
a) Public
b) Private
c) Community
d) All of the mentioned
15. Which of the following is a virtual machine technology now owned by Oracle that can run
various operating systems?
a) Vmachines
b) VirtualBox
c) ThoughtPolice
d) None of the mentioned
16. ____
as a Service is a cloud computing infrastructure that creates a development
environment upon which applications may be build.
a) Infrastructure
b) Service
c) Platform
d) All of the mentioned
17. ____
is a cloud computing service model in which hardware is virtualized in the cloud.
a) laaS
b)CaaS
c) PaaS
d) None of the mentioned
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18. Which of the following type of virtualization is also characteristic of cloud computing?
a) Storage
b) Application
c) CPU
d) All of the mentioned
19. Which of the following type of virtualization is found in hypervisor such as Microsoft's
Hyper-V?
a) paravirtualization
b) full virtualization
c) emulation
d) none of the mentioned
20. What is the command used to convert a container into an image?
a) docker push
b) docker commit
c) docker run
d) docker dif
Section B: True or False
[S Marks]
a 1. A template is a point-in-time captured state of VM that can be returned to over and over
again.
True/False
2. In Virtualisation containment means running multiple workloads on a single host
True/False
3. NFSis one the two file systems to Hypervisor uses to manage the VM files
True/False
4. Failure of a single disk in a RAID 1 array will not result in permanent data loss.
True/False
5. Virtualization is a framework or methodology of dividing the program files of a computer
into multiple execution environments.
True/False
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Section B
[45 marks]
1} In virtualization, what can be cloned, upgraded, and even moved from place to place,
without ever having to disrupt the user applications?
[1 Mark]
2) Name and explain two features that are used to multiply Virtual Machines
[4 marks]
3} System virtualization can be achieved through three virtualization techniques, name them
[3 Marks]
4) Using a diagram, illustrate the scope of control for software as a service (SaaS)[4 Marks]
5) What do you understand by the term Consolidation Ratio?
[2 Marks]
6) What is the difference between hot and cold cloning
[2 Marks]
7} Hypervisor uses two file systems to manage the VM files, name them
[2 marks]
8) You are a DEVOPSengineer for company XYZ,what command will you run if you want to run
a website in docker container in the back ground with the following conditions. [4 Marks]
a.
Using httpd image
b.
The location for index.html file is /webdata
c.
Port number 1321
d.
Container name is web
9} What do you understand by the term Thin Pool Rebalancing?
[2 Marks]
10) What do you understand by the term Virtual Provisioning?
[2 Marks]
11) Analyse the following Diagram A and answer the questions which follows. This
Diagram is a screen shot from a Docker daemon.
REPUSllORY
centos-qcc
docker.io 1httpd
docker. io 1centos
docker·. io ubuntu
docker. io1sequenceiq/hadoop-docker
[r·oot(llocalhost
~,]#
T4G
latest
latest
latest
latest
latPst
IMAGE ID
09ac174d7ffb
9f38484d2:'0f
9•le814e2efa8
5c3ccl70c6bc
Diagram A
a. Which command was typed to show the above screen shot?
CREATED
5 days ago
12 days ago
,I weeks ago
-1 1·1eeks aqo
3 years ago
[ 2 Marks]
b. What command will you run if you want to remove a centos image? [2 Marks]
c. What is the Docker command to run a container in a background (detached) mode
without allocating the TTYto it, not keeping STDINopen, using an Ubuntu image and
get the bash shell in the container?
[2 Marks]
12} What is the function of inventory the file in Ansible?
[2 Marks]
13} How many minimum disk drives are needed for RAIDl?
[1 Mark]
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14) In Raw Device Mapping (ROM) what makes it possible for the VMFS volume to access the
LUNon the physical storage system?
[2 Marks]
15) Discuss two different types of network virtualisation
[4 Marks]
16) List down the essential characteristics of cloud computing?
[4 Marks]
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