IT &computer MCQ section 6 Practice Questions Answers Test with Solutions & More Shortcuts

Answer: (b)

In order to transfer packets from a sending host to the destination host, the network layer must determine the path that the packets are to follow. Routing is the process by which systems decide where to send a packet.

It directs network packets from their source toward their destination through intermediate network nodes by specific packet forwarding mechanisms.

Answer: (a)

The valid phases of a virus are:

1. Dormant phase: Propagation phase - Triggering phase - Execution phase.

2. Dormant phase: The virus is idle. The virus will eventually be activated by some event);

3. Propagation phase: The virus places an identical copy of itself into other programs or into certain system areas on the disk. Each infected program will now contain a clone of the virus, which will itself enter a propagation phase;

4. Triggering phase: The virus is activated to perform the function for which it was intended. Can be caused by a variety of system events;

5. Execution phase: The goal of the virus software is performed

Answer: (a)

A microcomputer is a small, relatively inexpensive computer with a microprocessor as its central processing unit (CPU). It includes a microprocessor, memory, and input/output (I/O) facilities. They were at the centre of the home computer market segment.

Answer: (c)

A relational database management system (RDBMS) is a database management system (DBMS) that is based on the relational model as introduced by E. F. Codd, of IBM’s San Jose Research Laboratory.

Answer: (a)

A green data center is a repository for the storage, management and dissemination of mechanical lighting, electrical and computer systems developed to optimiza energy efficiency and environment impact.