April 22, 2019

Cloud Computing - MCQS

Question
Which of these is not a major type of cloud computing usage?

Select one:
a. Hardware as a Service
b. Platform as a Service
c. Software as a Service
d. Software as a Service

The correct answer is: Hardware as a Service

Question
Virtualization facilitates multiple machines on the same physical machine with

Select one:
a. Same OS & different versions
b. All of the above
c. Same OS & same versions
d. Different OS & different versions

The correct answer is: All of the above

Question
Which is not an approach to virtualization

Select one:
a. Partial virtualization
b. Lightweight virtualization
c. Full virtualization
d. Para virtualization

The correct answer is: Partial virtualization

Question
Live migration of VMs helps in

Select one:
a. Maintenance
b. Load balancing
c. All of the above
d. Availability

The correct answer is: All of the above

Question
Live migration involves

Select one:
a. Downtime of a few minutes
b. Loss of service
c. Downtime of a few milliseconds
d. No downtime

The correct answer is: Downtime of a few milliseconds

Question
Full virtualization

Select one:
a. Simulates hardware within software
b. Has VMs with the same OS
c. Clones images
d. Alters the guest OS

The correct answer is: Simulates hardware within software

Question
VMM is

Select one:
a. A virtual machine
b. Hardware
c. Host OS
d. A layer of software

The correct answer is: A layer of software

Question
VMM facilitates sharing of

Select one:
a. Memory & I/O
b. CPU, memory & I/O
c. CPU & memory
d. I/O & CPU

The correct answer is: CPU, memory & I/O

Question
The BEST way to define Virtualization in cloud computing is

Select one:
a. Virtualization enables simulating compute, network, and storage service platforms from the underlying virtual hardware
b. Virtualization enables abstracting compute, network, and storage service platforms from the underlying physical hardware
c. Virtualization enables realization of compute, network, and storage service platforms from the underlying virtual hardware
d. Virtualization enables emulating compute, network, and storage service platforms from the underlying virtual hardware

The correct answer is: Virtualization enables abstracting compute, network, and storage service platforms from the underlying physical hardware

Question
Which one of these statement is NOT fully correct

Select one:
a. Cloud is an exact equivalent of grid computing
b. Cloud makes notion of “Pay for what you use”, “infinite availability- use as much you want”.
c. Cloud can exist without Virtualization, although it will be difficult and inefficient.
d. As per NIST, one of the essential charecteristics of a cloud computing infrastructure is "Measured Service".

The correct answer is: Cloud is an exact equivalent of grid computing

Question
Which one of the followings is NOT an essential charecteristics of cloud infrastructure as per NIST?

Select one:
a. Broad Network Access
b. Resources Pooling
c. Rapid Elasticity
d. Independent of devices'form factor

The correct answer is: Independent of devices'form factor

Question
Cloud service consist of

Select one:
a. Software, Hardware, Infrastructure
b. Platform, Software, Infrastructure
c. Platform, Hardware, Infrastructure

The correct answer is: Platform, Software, Infrastructure

Question
What does Virtualization do? Select the BEST answer.

Select one:
a. Each “guest” OS is managed by a Virtual Machine Monitor (VMM), also known as a hypervisor.
b. It is a means of separating hardware from a single operating system.
c. All of the above
d. Virtualization allows multiple operating system instances to run concurrently on a single computer

The correct answer is: All of the above

Question
Which one is NOT generally a change after Virtualization?

Select one:
a. Virtual machines can be provisioned to any system
b. Hardware-independence of operating system and applications
c. Can manage OS and application as a single unit by encapsulating them into virtual machines.
d. Software and hardware tightly coupled

The correct answer is: Software and hardware tightly coupled

Question
A configured client server network is required to be provisioned. You would go for

Select one:
a. SaaS
b. IaaS
c. NaaS
d. PaaS

The correct answer is: IaaS

Question
What are the goals of Hypervisor design?

Select one:
a. Scalability
b. All of the above
c. Reliability
d. Isolation

The correct answer is: All of the above

Question
Which one of the statement is generally NOT correct for Microkernelized Hypervisor?

Select one:
a. Drivers run within guests
b. Simple partitioning functionality
c. Increase reliability and minimize lowest level of the TCB
d. Contains its own drivers model

The correct answer is: Contains its own drivers model

Question
In multiple VM processing, CPU is alloted to the different processes in form of:

Select one:
a. Space slices by the OS
b. Different CPUs are allocated to different processes
c. Time slices by the OS
d. Frequecy slices by the OS

The correct answer is: Time slices by the OS

Question
Which of the statement is generally NOT correct for Full Virtualization?

Select one:
a. This is known as hardware-assisted virtualization, and improves performance significantly
b. The biggest advantage to this approach is its flexibility.
c. There are significant performance problems in trying to emulate a complete set of hardware in software
d. Hypervisor provides a fully emulated machine in which an operating system can run

The correct answer is: This is known as hardware-assisted virtualization, and improves performance significantly

Question
Which of the following is true of cloud computing?

Select one:
a. It's always going to be less expensive and more secure than local computing.
b. Only a few small companies are investing in the technology, making it a risky venture.
c. You can access your data from any computer in the world, as long as you have an Internet connection.

The correct answer is: You can access your data from any computer in the world, as long as you have an Internet connection.

Question
Which of the following is deployment model?

Select one:
a. Public
b. Private
c. All of the above
d. Hybrid

The correct answer is: All of the above

Question
The ________ cloud infrastructure is operated for the exclusive use of an organization.

Select one:
a. All of the mentioned
b. Public
c. Community
d. Private

The correct answer is: Private

Question
Following is not a feature of Cloud Computing:

Select one:
a. Rapid Provisioning
b. On Demand
c. None of the above
d. Unambiguous
e. Shared Pool

The correct answer is: Unambiguous

Question
Cloud computing is

Select one:
a. Utility computing
b. Peer to peer computing
c. Mobile computing
d. All of these

The correct answer is: Utility computing

Question
Bare metal hypervisor sits on top of

Select one:
a. None of the above
b. Physical Hardware
c. Virtualized hardware
d. Operating System

The correct answer is: Physical Hardware

Question
In Amdahl'S law, maximum speedup of a system can be achieved using the following parameters:

Select one:
a. Number of Processors and the number of nodes in a cluster
b. Number of Processors and the amount of Memory System added
c. Number of Processors and fraction of application that needs sequential calculation
d. Number of Processors and the number of servers

The correct answer is: Number of Processors and fraction of application that needs sequential calculation

Question
Which is generally NOT a Multi-tenants Deployment Modes for Application Server

Select one:
a. Fully isolated Application server
b. Optimized Application Server
c. Virtualized Application Server
d. Shared Application Server

The correct answer is:Optimized Application Server

Question
Best-effort preemptable leases are generally defined as:

Select one:
a. A preemptable lease can be safely paused without disrupting the computation that takes place inside the lease
b. Best effort lease cannot preempted
c. A preemptable lease cannot be safely paused without disrupting the computation that takes place inside the lease
d. A preemptable lease can be paused while disrupting the computation that takes place inside the lease

The correct answer is: A preemptable lease can be safely paused without disrupting the computation that takes place inside the lease

Question
Which of the following is most refined and restrictive service model?

Select one:
a. PaaS
b. All of the mentioned
c. CaaS
d. IaaS

The correct answer is: PaaS

Question
All cloud computing applications suffer from the inherent _______ that is intrinsic in their WAN connectivity.

Select one:
a. All of the mentioned
b. Propagation
c. noise
d. latency

The correct answer is: latency

Question
Most security problems in cloud stem from
i) Loss of Control   ii) Lack of trust    iii) Multi-tenancy   iv) Private cloud

Select one:
a. ii, iii & iv
b. i, iii & iv
c. i, ii & iii
d. i, iii & iv

The correct answer is:i, ii & iii

Question
Appear IQ, Mendix, Amazon Web Services (AWS) Elastic Beanstalk, Google App Engine and Heroku, are some of the example of providing services for:

Select one:
a. IaaS
b. None
c. SaaS
d. PaaS

The correct answer is:PaaS

Question
Multi-tenancy deployment mode is

Select one:
a. Shared Application Server
b. All of the above
c. Shared  Virtual Server
d. Virtualized Application Server

The correct answer is:All of the above

Question
A threat model helps in

Select one:
a. Evaluate Solutions
b. Analysing security problems
c. Design Mitigation strategies
d. All of the above

The correct answer is:All of the above

Question
Which one is NOT a purchase model of SaaS?
Select one:
a. Subscription
b. Purchase of licenses
c. Rent
d. Lease

The correct answer is:Purchase of licenses

Question
Best-effort preemptable leases are generally defined as:

Select one:
a. A preemptable lease can be paused while disrupting the computation that takes place inside the lease
b. A preemptable lease cannot be safely paused without disrupting the computation that takes place inside the lease
c. A preemptable lease can be safely paused without disrupting the computation that takes place inside the lease
d. Best effort lease cannot be preempted

The correct answer is:A preemptable lease can be safely paused without disrupting the computation that takes place inside the lease

Question
How 'Best-Effort Lease' can be scheduled even if there are not enough resources?

Select one:
a. The use of Server suspension/resumption allows this to happen
b. The use of API allows this to happen
c. The use of VM suspension/resumption allows this to happen.
d. The use of Hypervisor suspension allows this to happen

The correct answer is:The use of VM suspension/resumption allows this to happen.


Question
Which one is NOT a characteristic of High Availability System

Select one:
a. Defined by Service Level Agreement (SLA)
b. Defined by Operation Level Agreement (OLA)
c. HA goal is to meet SLA
d. Balance between the Availability and Implementation cost

The correct answer is:Defined by Operation Level Agreement (OLA)

Question
 Which one of the cases not impacting major system availability

Select one:
a. Service performance degrade
b. Service outage by unplanned downtime
c. Live migration of VM for load balancing
d. Service outage by planned downtime

The correct answer is: Live migration of VM for load balancing

Question
Which one is NOT a step for high availability system?

Select one:
a. Build for Zone failure
b. Build for Server failure
c. Build for City failure
d.  Build for Cloud failure

The correct answer is: Build for City failure

Question
In Amdahl'S law, maximum speedup of a system can be achieved using the folowing parametres:

Select one:
A. Number of Processors and the number of nodes in a cluster
B. Number of Processors and the amount of Memory System added
C. Number of Processors and fraction of application that needs sequential calculation
D. Number of Processors and the number of servers


The correct answer is: Number of Processors and fraction of application that needs sequential calculation

Question
Which is NOT a key aspect of multi tenancy?

Select one:
A. The ability of the application to share hardware resources
B. The offering of a high degree of configurability of the software
C. Tenants make use of a single application and database instance.
D. Tenants make use of a multiple applications and database instances.

The correct answer is: Tenants make use of a multiple applications and database instances
Question
Which is one of these is a major issue or concern for the companies who are hesitant to move to the cloud services?

Select one:
A. Performance
B. Security
C. Availability
D. Cost

The correct answer is: Security

Question
Which is typically NOT a Cloud Security Problem?

Select one:
A. Multi-tenancy architecture
B. Malware protection
C. Economic Denial of Services (EDOS)
D. Data Comingling

The correct answer is: Malware protection

Question
Which is NOT a step used to develop a threat model for cloud security problem

Select one:
A. Identify attackers, assets, threats and other components
B. Rank the threats
C. Select the solutions based on security best practices
D. Choose mitigation strategies

The correct answer is: Select the solutions based on security best practices


Question
Multitenancy in cloud has advantages such as:

i) Infrastructure sharing     ii) Maintenance cost sharing    iii) Privacy    iv) Freedom

Select one:
A. i & ii
B. i, ii, iii & iv
C. i & iii
D. i, ii & iii   

The correct answer is: i & ii

Question
 Which is generally NOT a Software As  A Service (SaaS)?

Select one:
A. Software delivered to home consumers, small business, medium and large business over a network.
B. The applications are hosted by a vendor or service provider and made available to customers over a network, typically the Internet.
C. The software service deployed as a hosted service and accessed over the Internet, as opposed to on-premise.
D. Software is purchased for and installed on personal computers.

The correct answer is: Software is purchased for and installed on personal computers.

Question
If virtualization occurs at application level, OS level and hardware level, then such service in cloud is

Select one:
a. IaaS   
b. SaaS
c. no such service
d. PaaS   

The correct answer is: SaaS

Question
For providing PaaS Google App Engine provides

Select one:
a. Automatic scaling and load balancing
b. Independently operates without support from Google cloud services and APIs
c. Synchronous task queues for performing work outside the scope of a request
d. Triggering events at ad-hoc intervals for accomplishing Scheduled tasks

The correct answer is: Automatic scaling and load balancing

Question
Order of Virtual Machine Life Cycle

i) Release Ms    ii) IT Service Request        iii) VM in operation    iv) VM Provision

Select one:
a. ii, i, iii, iv
b. i, ii, iii & iv
c. ii, iii, iv & i
d. ii, iv, iii & i

The correct answer is: ii, iv, iii & i

Question
Three Key pillars of Virtual Information Management are Networking, Virtualization and _____

Select one:
a. Storage Management
b. User Management
c. Server Management
d. Image Management

The correct answer is: Image Management

Question
Application SLAs are normally managed by 

Select one:
a. Cloud Vendors
b. Managed Service Providers
c. Infrastructure Providers
d. Application Service Providers

The correct answer is: Managed Service Providers

Question
Which one of the following statements is NOT CORRECT with respect to scalling computation in cloud environment

Select one:
a. Scale out or horizontal scaling is about adding more resources to a single node or a single system to improve performance
b. Scale up or vertical scaling is about adding more resources to a single node or a single system to improve performance
c. Scale out or horizontal scaling, is about expanding the compute resources by adding a new computer system or node
d. The challenge in scale out systems is the complex management of the infrastructure.

The correct answer is: Scale out or horizontal scaling is about adding more resources to a single node or a single system to improve performance

Question
In cloud resource reservation of capacity, Advance Reservation leases are defined as:

Select one:
A. Which will wait in a queue until resources become available
B. Which must start right now, or not at all
C. Which has specific Start Time, End Time, duration
D. Which must start at a specific time

The correct answer is: Which must start at a specific time

Question
Which one of the following statements BEST describes the Immediate Leases in resources provisioning?

Select one:
A. Where resources are provisioned when requested or not at all
B. Where the resources must be available at a specified time
C. Where resources are provisioned as soon as possible
D. This type of lease are mostly preemptable in nature

The correct answer is: Where resources are provisioned when requested or not at all

4 comments:

  1. Which is NOT a step used to develop a threat model for cloud security problem

    Select one:
    A. Identify attackers, assets, threats and other components
    B. Rank the threats
    C. Choose mitigation strategies
    D. Select the solutions based on security best practices

    Answer plz?

    ReplyDelete
  2. Wonderful blog! Do you have any tips and hints for aspiring writers? Because I’m going to start my website soon, but I’m a little lost on everything. Many thanks! scale computing

    ReplyDelete