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SVT710S - SYSTEMS VIRTUALISATION - 2ND OPP - JULY 2023 |
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nAmlBIA 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 2023
DURATION: 3 HOURS
PAPER: THEORY
MARKS: 80
SECOND OPPORTUNITY/SUPPLEMENTARY EXAMINATION QUESTION PAPER
EXAMINER(S)
MR. SHOOPALA NAMBAHU
MODERATOR:
MR. ANTON LIMBO
THIS QUESTION PAPER CONSISTS OF 4 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)
Read each question carefully, and then select THEANSWERthat best fits the question
1. _____
are instances of Docker images that can be run using the Docker run
command.
a) Hub
b) Container
c) File
d) Cloud
2. Running of containers is managed with the Docker ___ command.
a) CREATE
b) RUN
c) INSERT
d) SUDO
3. Network level virtualization in a SAN fabric can be implemented by having virtualization
engine running in _____
?
a) HBA
b) FCswitch
c) Raid array
d) Any of the mentioned
4. Which RAID type doesn't use parity for data protection?
a) RAID 1
b) RAID 4
c) RAID 6
d) RAID 5
5. 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
6. Which of the following is Cloud Platform by Amazon?
a) Azure
b)AWS
c) Cloudera
d) All of the mentioned
7. Which of the following is associated with considerable vendor lock-in?
a) PaaS
b) laaS
c) CaaS
d)SaaS
8. The ____
cloud infrastructure is operated for the exclusive use of an organization.
a) Private
b) Public
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9. Which of the following is essential concept related to Cloud?
a) Reliability
b) Productivity
c) Abstraction
d) All of the above
10. A Docker registry is a place to store and distribute Docker .............. .
a) Codes
b) Files
c) Images
d) All of the above
11. 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
12. ____
refers to the location and management of the cloud's infrastructure.
a) Service
b) Deployment
c) Application
d) All of the mentioned
13. The "rmi" command in docker is used to?
a) Save docker images to a tar archive
b) Remove one or more docker images
c) None
d) Move image in remote to a different location
14. Which of the following is deployment model?
a) Hybrid
b) Private
c) Public
d) all of the mentioned
15. Which command is used for running the images as a container?
a) docker ps
b) Files
c) docker run container name
d) docker run -it alpine /bin/bash
16. Which of the following is a type of virtualization?
a) Storage
b) Desktop
c) CPU
d) All of the above
17. Which RAID type doesn't use parity for data protection?
a) RAID 1
b) RAID 4
c) RAID 6
d) RAIDS
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18. Which of the following is the hardware requirement for a Hyper-V failover cluster?
a) Shared Storage
b) SSDDrive
c) GPU
19. ____
computing refers to applications and services that run on a distributed network
using
a) Cloud
b) Docker
c) Distributed
d) Parallel
20. 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
Section B: True or False_
Read each statement below carefully and state whether false or true.
(10 Marks)
1. A virtual machine connects from the virtual NIC to a Virtual Switch
2. Virtualization is a framework or methodology of dividing the program files of a computer
into multiple execution environments.
3. In a VMware environment, a .vmdk file represents a virtual machine's Network Card.
4. DNS is used to automatically provide IP addresses for both physical and virtual servers.
5. VMware Workstation is an example of a Type 1 hypervisor.
6. LUN is a storage technology that deals with how data is spread across multiple disks for both
increased availability and improved performance.
7. The security issue has played the most important role in affecting Cloud computing
acceptance.
8. The static binary translation takes the whole program code and target instruction set at once
and translates it to the target architecture.
9. With Docker you can separate your applications from your infrastructure AND treat your
infrastructure like a managed application.
10. Failover cluster is a set of several different Hyper-V servers (called nodes), which can be
specifically configured to work together.
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Section B
Answer all the questions in this section.
[50 marks]
1. Name and explain three tools that are used for orchestrating distributed applications with
Docker
[6 marks]
2. What is storage virtualization?
[2 Marks]
3. Explain two methods of expanding VMFS.
[4 Marks]
4. Name two benefits of Raw Device mapping (RDM}.
[4 Marks]
5. What is the use of a playbook in Ansible?
[2 Marks]
6. Name and explain 2 fundamental requirements of a VMM as defined by Popek & Goldberg?
[4 Marks]
7. What is the main objective of network virtualization?
[2 Marks]
8. When is Thin Pool Rebalancing performed in storage virtualisation?
[2 Marks]
9. In virtualization, what can be cloned, upgraded, and even moved from place to place,
without ever having to disrupt the user applications?
[1 Mark]
10. List and explain two of the hardware you would require for your Failover Cluster to be
functional?
[4 Marks]
11. What is the difference between hot and cold cloning
[2 Marks]
12. Analyse Diagram A and answer the questions which follows. Diagram A is a screen shot from
a Docker daemon.
REPOSITUR',
centos-qcc
docker. io 1 httpd
docker. io1ce11tos
clocker. io 1 ubu11tu
docker.io 1 seque11ceiq/hadoop-clocker
[root@localhost -],
lAG
latest
latest
latest
latest
latest
IMAGE ID
09acl~4d7ffb
d-la0~e6ce4:-0
9f38484cl220f
94e814e2efa8
5c3ccl~0c6bc
CREATED
5 days ago
12 days ago
-1 1-.eeks ago
4 \\\\eeks ago
3 years ago
Diagram A
a. Which command was typed to show the above screen shot?
[ 2 Marks]
b. What command will you run if you want to remove an Ubuntu 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]
13. What is the function of inventory the file in Ansible?
(2 Marks]
14. How many minimum disk drives are needed for RAIDl?
[1 Mark]
15. Discuss two different types of network virtualisation.
[4 Marks]
16. List down the essential characteristics of cloud computing?
[4 Marks]
5