Multiple choice Questions and Answers on Amazon Web Service Components and Services of Cloud Computing

1. Which of the following correctly describes components roughly in their order of importance from top to down ?
a)
b)
c)
d) None of the mentioned

Answer: a

Explanation: Amazon Elastic Compute Cloud is the central application in the AWS portfolio.

2. Point out the wrong statement:

a) Virtual private servers can provision virtual private clouds connected through virtual private networks
b) Amazon Web Services is based on SOA standards
c) Starting in 2012, Amazon.com made its Web service platform available to developers on a usage-basis model
d) All of the mentioned

Answer: c

Explanation: Through hardware virtualization on Xen hypervisors, Amazon.com has made it possible to create private virtual servers that you can run worldwide.

3. Which of the following is the central application in the AWS portfolio ?

a) Amazon Elastic Compute Cloud
b) Amazon Simple Queue Service
c) Amazon Simple Notification Service
d) Amazon Simple Storage System

Answer: a

Explanation: Amazon Elastic Compute Cloud enables the creation, use, and management of virtual private servers running the Linux or Windows operating system over a Xen hypervisor.

4. Which of the following is a message queue or transaction system for distributed Internet-based applications ?

a) Amazon Elastic Compute Cloud
b) Amazon Simple Queue Service
c) Amazon Simple Notification Service
d) Amazon Simple Storage System

Answer: b

Explanation: In a loosely coupled SOA system, a transaction manager is required to ensure that messages are not lost when a component isn’t available.

5. Point out the correct statement:

a) SQL Server is having enormous impact in cloud computing
b) Amazon.com’s services represent the largest pure Infrastructure as a Service (IAAS)
c) EC2 is a Platform as a Service (PaaS) market
d) None of the mentioned

Answer: b

Explanation: EC2 is estimated to run on over 40,000+ servers worldwide divided into six availability zones.

6. Which of the following is a system for creating block level storage devices that can be used for Amazon Machine Instances in EC2 ?

a) CloudWatch
b) Amazon Elastic Block Store
c) AWS Import/Export
d) All of the mentioned

Answer: b

Explanation: The Load Balancing feature can detect when an instance is failing and reroute traffic to a healthy instance, even an instance in other AWS zones.

7. Which of the following feature is used for scaling of EC2 sites ?

a) Auto Replica
b) Auto Scaling
c) Auto Ruling
d) All of the mentioned

Answer: b

Explanation: Autoscaling is part of Amazon Cloudwatch and available at no additional charge.

8. Which of the following is a Web service that can publish messages from an application and deliver them to other applications or to subscribers ?

a) Amazon Elastic Compute Cloud
b) Amazon Simple Queue Service
c) Amazon Simple Notification Service
d) Amazon Simple Storage System

Answer: c

Explanation: SNS provides a method for triggering actions, allowing clients or applications to subscribe to information (like RSS), or polling for new or changed information or perform updates.

9. Which of the following metrics are used to support Elastic Load Balancing ?

a) CloudWatch
b) Amazon Elastic Block Store
c) AWS Import/Export
d) All of the mentioned

Answer: a

Explanation: Amazon Machine Instances (AMIs) in EC2 can be load balanced using the Elastic Load Balancing.

10. Which of the following is an online backup and storage system ?

a) Amazon Elastic Compute Cloud
b) Amazon Simple Queue Service
c) Amazon Simple Notification Service
d) Amazon Simple Storage System

Answer: d

Explanation: A high speed data transfer feature called AWS Import/Export can transfer data to and from AWS using Amazon’s own internal network to portable storage devices.