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SVT710S - SYSTEM VIRTUALISATION - 1ST OPP - JUNE 2022 |
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nAmlBIA UnlVERSITY
OF SCIEnCE Ano TECHnOLOGY
FACULTY OF COMPUTING AND INFORMATICS
DEPARTMENTOF COMPUTERSCIENCE
QUALIFICATION: BACHELOROF COMPUTER SCIENCE
QUALIFICATION CODE: 07BACS 07BCMS
LEVEL: 7
COURSE: SYSTEM VIRTUALISATION
COURSECODE: SVT710S
DATE:JUNE 2022
DURATION: 3 HOURS
PAPER:THEORY
MARKS: 65
EXAMINER(S)
FIRSTOPPORTUNITY EXAMINATION QUESTION PAPER
MR. SHOOPALA NAMBAHU
MODERATOR:
MR. ANTON LIMBO
THIS QUESTION PAPERCONSISTSOF 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.
PERMISSIBLEMATERIALS
1. Calculator.
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Section A: (Multiple choice)
(20 Marks)
1. Which of the following is associated with considerable vendor lock-in?
a) Paas
b} laaS
c} CaaS
d} Saas
2. ____
computing refers to applications and services that run on a distributed network
using virtualized resources.
a} Distributed
b) Cloud
c} Docker
d) Parallel
3. Which of the following benefit is related to create resources that are pooled together in a
system that supports multi-tenant usage?
a} On-demand self-service
b} Broad network access
c) Resource pooling:
d} All of the mentioned
4. Which RAID type doesn't use parity for data protection?
Point out the wrong statement :
a} RAID 1
b} RAID 6
c) RAID 4
d} RAID 5
5. Which of the following is true?
a} docker ps shows all running containers by default.
b} docker ps shows all containers by default
c} none of the mentioned
6. 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
7. ____
refers to the location and management of the cloud's infrastructure.
a) Service
b} Deployment
c} Application
d} None of the mentioned
8. 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 is a type ofvirtualization?
a) Storage
b) Desktop
c) CPU
d) All of the above
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. The ____
cloud infrastructure is operated for the exclusive use of an organization.
a) Public
b) Private
c) Community
d) All of the mentioned
14. 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
15. When it comes to avoiding major outages, the use of server virtualization:
a) Reduces the frequency of hardware-related service outages
b) Has no material impact
c) Requires that levels of redundancy be increased in order to avoid an increase in outages
affecting multiple applications/services
16. Which one of these is characteristic of RAID 5?
a) Distributed parity
b) No Parity
c) All parity in a single disk
d) Double Parity
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17. Saas supports multiple users and provides a shared data model through ____
a) single-tenancy
b) multi-tenancy
c) multiple-instance
d) all of the mentioned
18. Which one of these is characteristic of RAID 5?
a) Distributed parity
b) No Parity
c) All parity in a single disk
d) Double Parity
19. Which type of Hypervisor is shown in the following figure?
Guest OS 11 Guest OS
Hypervisor
SystemHardware
model.
a) Type 1
b) Type 2
c) Type 3
d) All of the mentioned
20. On a particular server, within each virtual machine:
a) You can run any version of Windows without regard for the version(s) running in the
other virtual machines
b) The versions of Windows must be no more than one release level apart
c) The versions of Windows must be exactly the same
Section B: True or False
(S Marks)
1. A template is a point-in-time captured state of a VM that can be returned to over and over
again.
True/False
2. NFSis one the two file systems to Hypervisor uses to manage the VM files
True/False
3. The main objective of network virtualization is to abstract network services into a virtual
network.
True/False
4. One of the virtual provisioning best practices is to have HHD in a thin pool with the different
RPM
True/False
5. Virtualization is a framework or methodology of dividing the program files of a computer
into multiple execution environments.
True/False
6. Binary translation maps each Java source code to target instructions
True/False
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Section C: Fill in the missing word
[S Marks]
1. In a VMware environment, a .vmdk file represents a virtual machine's ___ _
2. ___ is used to automatically provide IP addresses for both physical and virtual
servers.
3. A virtual machine connects from the virtual NIC to a ---
4. VMware Workstation is an example of a _________
hypervisor.
5. _________
is a storage technology that deals with how data is spread
across multiple disks for both increased availability and improved performance.
Section D
[35 marks]
1) You are trying to access a web page that is being hosted under a Docker container using a
web browser, but you are getting an error in diagram A.
Name two possible ways to solve this problem permanently?
[4 Marks]
C CD lot secure I 172.16.175.128:20on1
Forbidden
You don't have permission to access/ on this server.
Diagram A
2) You are a DEVOPSengineer for company XYZ,what command will you use to run a website
in a docker container in the back ground with the following conditions. ·
[4 Marks]
a.
Using httpd image
b.
The location for index.html file is /opt/web
c.
Port number 14021
d.
Container name is webpage
3) You are a system ad min for company ABZ Pty. and you are required to set up a server in such
way that the physical storage space is only allocated when the server needs it. How will you
achieve this?
[2 Marks]
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4) Analyse the following Diagram Band answer the questions which follows. This
Diagram is a screen shot from a Docker daemon.
Cfl'.-AI\\FRID
JYAGF
OaGlaa6GOdG4 ubuntu
db2f896c0009 ubuntu
7cf~d5SOIJ2t ubuntu
af'rd0rh0r6e
ubuntu
[root}localhost ~];
COY'IA\\D
"bash"
"bash"
"/bin/bash"
"/bin/hash"
CRFATrn
42 secondsago
2 ninutcs ago
2 days ago
? days ago
STATUS
Up41 seconds
Up2 ninutcs
Fx1ted (1Z7) 2 days ago
Fxlted (0) ? days ago
PORTS
\\AYFS
stoic_heisenberg
AAA
nervous_agnes1
drra,:y_hamilton
Diagram B
a. Which command was typed to show the above screen shot?
[ 2 Marks]
b. What command will you run if you want to remove the container with ID
af7ed0eb0e6e?
[2 Mark]
c. What is the Docker command will you rum if you want to remove an Ubuntu image?
[2 Marks]
5) What is the difference between docker ps and docker ps -a commands?
[4 marks]
6) Why does performance become poor at Instruction Set Architecture (ISA) Level? [2 Marks]
7) Name three benefits of storage virtualization?
[3 Marks]
8} When is Thin Pool Rebalancing performed in storage virtualisation?
[2 Marks]
9} What is the mechanism used to prevent a virtual machine from being powered on by more
than one host?
[1 Mark]
10) What is the difference between Hosted Architecture and Bare-Metal Architecture?
[2 Marks]
11) You are a Systems Administrator; you are required to create a new VM which is identical to·
the Webserver VM. What feature will you use to create a new VM?
[1 Mark]
12) When can you use P2V feature?
[2 Marks]
13) How is virtualization different from dual boot?
[2 Marks]
Good iuckll
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