Multiple choice Questions and Answers on Open Cloud Computing Interface of Cloud Computing for Freshers

1. Which of the following storage API is developed by SNIA for accessing content on storage devices ?

a) VIM
b) XAM
c) RIM
d) All of the mentioned

Answer: b

Explanation: XAM stands for the eXtensible Access Method.

2. Point out the correct statement:

a) The OCCI data object can manage CDMI containers
b) The CDMI data object can manage CDMI containers
c) OCCI can access objects stored in the cloud by using standard SMTP command
d) All of the mentioned

Answer: b

Explanation: The CDMI data object can manage containers that are accessible in cloud storage through other supported protocols.

3. Which of the following interface converts XAM requests into native commands that are supported by the storage hardware operating systems ?

a) VIM
b) XAM
c) RIM
d) All of the mentioned

Answer: a

Explanation: VIM stands for Vendor Interface Modules.

4. In which of the following architecture, every resource is identified by a standardized URI that may be translated into both hypertext and other forms ?

a) ROI
b) ROA
c) SOA
d) All of the mentioned

Answer: b

Explanation: ROA stands for Resource Oriented Architecture.

5. Point out the wrong statement:

a) CDMI uses the SNIA eXtensible Access Method to discover and access metadata associated with each data object
b) OCCI uses metadata for FTP
c) CDMI provides an interface through which applications can gain access to the storage objects in a container over the Web
d) None of the mentioned

Answer: b

Explanation: CDMI uses metadata for HTTP, system, user, and storage media attributes.

6. Which of the following action provides a wrapper for metadata and operational instructions ?

a) PUT
b) GET
c) HEAD
d) Adequate bandwidth

Answer: c

Explanation: In a PUT operation, the container (store) is created if it didn’t exist previously.

7. Which of the following metadata MIME is required in a PUT operation ?

a) HEAD/OPTIONS
b) GET/RECEIVE
c) KEY/VALUE
d) None of the mentioned

Answer: c

Explanation: A variety of KEY/VALUE pairs describing object attributes in CDMI is defined by the standard.

8. Which of the following standard is meant to span the different vendors’ standards and cloud infrastructure ?

a) OCCI
b) CDMI
c) COA
d) All of the mentioned

Answer: a

Explanation: SNIA and the Open Grid Forum have created a joint working group to create the Open Cloud Computing Interface (OCCI).

9. Which of the following formats can be mapped by OCCI APIs ?

a) Pub
b) JSON
c) Plain text
d) All of the mentioned

Answer: d

Explanation: The OCCI interface standard is based on the Resource Oriented Architecture (ROA) and uses the URI definition.

10. The ability to provide storage on demand from a storage pool is referred to as _________ provisioning.

a) thin
b) thick
c) flat
d) full

Answer: a

Explanation: Thin provisioning also applies to compute resources such as virtual machines.