Reference no: EM132316463

Cloud Computing and Virtualisation Assignment -

SECTION A - Multiple Choice Questions

Q1. Azure allows its customers to have ________ subscription.

a. only one

b. one or more

Q2. For a virtual machine, you still need to ________.

a. configure

b. patch

c. install software

d. all of the above

e. none of the above

Q3. Primary storage is ________.

a. memory that a CPU accesses such as RAM

b. memory that IO devices access such as HDDs

c. slow memory devices such as tape drive

d. storage that can be accessed by one or more users

Q4. Tertiary storage is ________.

a. memory that a CPU accesses such as RAM

b. memory that IO devices access such as HDDs

c. slow memory devices such as tape drive

d. storage that can be accessed by one or more users

Q5. ________ is a standard to connect devices and transfer data between these devices.

a. SCSI

b. iSCSI

c. SAN

d. NFS

Q6. ________ is a network supporting transfer, storage and access of block level data.

a. SCSI

b. iSCSI

c. SAN

d. NFS

Q7. ________ provides an amount of storage, say 500 GB, but a smaller amount, say 100 GB, is actually used and 400 GB is unused.

a. Thick provisioning

b. Thin provisioning

Q8. ________ allocates storage as you need it.

a. Thick provisioning

b. Thin provisioning

Q9. A LUN It can be based ________.

a. only on a single disk

b. only on multiple disks

c. on a single disk or multiple disks

Q10. A ________ is software that provides virtualisation functionality.

a. Hypervisor

b. Host Operating System

c. Guest Operating System

Q11. ________ is installed in the virtual environment (in the VM / virtual server).

a. Hypervisor

b. Host Operating System

c. Guest Operating System

Q12. A ________ is installed in another operating system.

a. Type 1 Hypervisor

b. Type 2 Hypervisor

Q13. VMware vSphere can be used to create a virtual appliance called a vApp. A vApp can contain ________.

a. only one VM

b. one or more VMs but no networking

c. one or more VMs and virtual devices for networking

Q14. A cloud provider has a new datacentre containing 1,000 hard disk drives. Each drive has a 12 TB capacity. Assume that the annual failure rate (AFR) of these drives is 2%. Given this AFR, one would expect that ______ of these 1,000 drives will fail in the first year of operation.

a. 2

b. 20

c. 200

d. 240

Q15. When using RAID level 5, the main operation used to create the parity block is ________.

a. AND

b. OR

c. XAND

d. XOR

Q16. ________ is not a method that is used to connect a host/server to storage.

a. DAS

b. SAD

c. NAS

d. SAN

Q17. The primary element of a NAS storage system is a ________.

a. byte

b. block

c. file

d. folder

Q18. The purpose of ________ is to ________ workload across two or more IT resources to increase performance and capacity beyond a single IT resource.

a. an automated scaling listener, scale

b. an automated scaling listener, balance

c. a load balancer, scale

d. a load balancer, balance

Q19. A(n) ________ increases both reliability and availability of IT resources through redundancy.

a. automated scaling listener

b. load balancer

c. failover system

d. multi-device broker

Q20. The mechanism that transforms data at runtime to allow a cloud service access to more consumer programs and consumer devices is called ________.

a. an automated scaling listener

b. a load balancer

c. a failover system

d. a multi-device broker

SECTION B - Short Answer Question

Q1. Cloud Computing

(a) Briefly describe the main difference between Type1 and Type 2 Hypervisors.

(b) Briefly describe IaaS.

(c) Briefly describe PaaS.

(d) Briefly describe SaaS.

Q2. Cloud Characteristics

(a) Provide a list of the 5 essential cloud characteristics.

(b) Briefly explain why each of these essential characteristics has an advantage over a non-cloud system.

Q3. Cloud Storage

(a) Azure provides 6 types of cloud storage. Provide a list of 4 of these storage types?

(b) Briefly describe 2 types of Azure cloud storage?

SECTION C - Design

Scenario - CloudSchool Pty Ltd is a fictitious start-up company. CloudSchool has contacted you to be their cloud computing consultant, and its management want to know a possible cloud solution to their limited computational and storage capacities.

Additional details about this company are:

• CloudSchool's administrative headquarters and datacenter are both located on the same site in Melbourne, Australia, but in different buildings. These buildings are completely full, and CloudSchool does not have funds to buy or lease additional floor space.
• Software systems to perform some of CloudSchool's administrative tasks are located on this datacenter and accessible online too.
• CloudSchool provides short online courses about cloud systems to its registered students.
• Each course covers one particular aspect of cloud computing such as creating a VM, cloning a VM, adding secondary storage to a VM, creating a datastore, creating a cluster, creating a vApp, and so on.
• Each course requires a specific vApp of virtual machines, virtual networking, virtual storage, and software. The PaaS model is used to deliver a vApp instance to a student in order to complete a particular course.
• A student registers online by providing a username, password, and credit card details. A student can login to and logout of the CloudSchool's online system.
• A registered student must make a course reservation to participate in a course. A reservation involves selecting start and end times, selecting a course, and confirming to pay via credit card. A student can enter a course after the start time, and before the end time.
• Participation in a course involves following written and video instructions, interacting with the vApp, and answering questions.
• As CloudSchool understands that students have a need to briefly suspend a course while attending to other matters, CloudSchool allows a student to make a snapshot of a vApp. When a student resumes working on a course, that snapshot allows the student to continue at the place where it was suspended. However, as CloudSchool is a startup company, it does not have sufficient storage capacity to allow students to indefinitely retain snapshots of their vApps. This storage limit has forced CloudSchool to delete a vApp snapshot immediately after 7 days of the reservation start time.
• Recently, the number of student registrations is rapidly increasing. Consequently, as the number of students taking courses is increasing, the datacenter workload is increasing. However, currently CloudSchool does not have enough computational capacity in its datacenter to sufficiently deal with the predicted high workloads.

1. Conceptual Design

Draw your conceptual design of a new cloud based system that solves the computational and storage problems of CloudSchool's current system. Your design should include functional components such as registration, course reservation, and course participation (to name just a few).

2. Conceptual Design Justification

For ten (10) elements (excluding arrows) in your conceptual design, provide one brief reason why you included that element in your design.

3. Course Participation Design

Draw your design of the course participation component. Your design should include many elements for on and off premise, and mechanisms such a listeners, and monitors (to name just a few).

4. Course Participation Design Justification

For ten (10) of the different element and mechanism types in your course participation design, provide one brief reason why you included that element in your design.