Questions

Qualm means feeling confused, uneasiness, very doubtful and being in worry.

Hence, among the given options, Qualm is the opposite of Confidence.

Answer A is reversed. Answer C is sometimes mistakenly used to forecast project completion (it’s invalid because it does not take into consideration which completed tasks are on the critical path). Answer D is the definition of Schedule Variance. 

A network is nothing but 2 or more computers are grouped together to share information and resources and the that arrangement is called a topology.

Cluster network topology is not a common type.

The river "Cango" crosses the equator twice.

“The work involved in performing the five processes of Project Scope Management is preceded by a planning effort by the project management team. This planning effort is part of the Develop Project Management Plan process, which produces a scope management plan that provides guidance on how project scope will be defined, documented, verified, managed, and controlled. The scope management plan may be formal or informal, highly detailed, or broadly framed, based upon the needs of the project.”