2011 GS Paper I, all questions
UPSC Prelims 2011 · GS Paper I
Question 99: Science and Technology
What is "Virtual Private Network" ?
aIt is a private computer network of an organization where the remote users can transmit encrypted information through the server of the organization
bIt is a computer network across a public internet that provides users access to their organization's network while maintaining the security of the information transmitted
cIt is a computer network in which users can access a shared pool of computing resources through a service provider
dNone of the statements (a), (b) and (c) given above is a correct description of Virtual Private Network
AnswerThe answer is (b).
A virtual private network uses the public internet to link users or branch offices to their organisation's private network, creating an encrypted tunnel so that information stays secure in transit. Option (a) describes a private network of an organisation rather than one run across the public internet, and option (c) describes cloud computing. Remember: VPN means secure access to a private network over a public one.
Why each option is right or wrong
- (a) Describes a private network, not one running across the public internet.
- (b) Right: a network across the public internet that keeps transmitted information secure.
- (c) Describes cloud computing, with a shared pool of resources.
- (d) Option (b) correctly describes a VPN.
Explanation: written by UPSC Grade, not by UPSC.
Source: UPSC, Civil Services (Preliminary) Examination 2011, General Studies Paper I, Series A. The paper on upsc.gov.in.