UGC NET Questions (Paper – 1)

Statements A, B, C and E collectively explain the main cloud service models and their flexible use, while D and F are inaccurate. In IaaS, the provider manages physical servers, not the user, and cloud offerings are known for elastic scaling. Institutions may mix virtual infrastructure, development platforms and hosted applications to suit their strategies. Therefore the combination that includes A, B, C and E and excludes D and F is correct.

Option A:
Option A is incorrect because it includes F, which falsely claims cloud services cannot be scaled, and it omits B, which defines PaaS. Therefore this set is incomplete and contains an incorrect statement.

Option B:
Option B is incorrect because it adds F, suggesting that cloud services cannot be scaled. Scalability is one of the defining characteristics of cloud computing, so including F makes this option wrong despite containing some true statements.

Option C:
Option C is incorrect because it leaves out A and introduces F. Excluding IaaS from the set removes one of the three core service models, and accepting F contradicts the elasticity of the cloud.

Option D:
Option D is correct because it keeps the three correct model descriptions and acknowledges that institutions may combine them while discarding the claims that users manage physical servers directly or cannot scale services.