Computer Networks Answers

Perform the subnetting on the below IP Address and find out the number of networks, network of, first host, last host, and broadcast id of each network.
IP Address:120.0.0.0/20

In computing, a user-interface:
A Helps users to communicate with the computer
B Converts a program into a machine-usable form.
C Transmits data to remote locations as
D Is only a graphical interface-

Which one of the following testing is performed by an end-user?
A Acceptance testing.
B Unit testing.
C Integration testing.
D None Of the above.

Prototyping is performed by:
A Client.
B Developer.
C Manager.
D Both A & B above

Which step Of SDLC performs cost-benefit analysis?
A Feasibility Study.
B Analysis.
C Design.
D None of the above.

What is the objective of a test strategy for a new program?
A. To ensure that the program compiles without errors.
B. To prove that the program has no errors.
C. To establish which data will allow the program to run without crashing.
D.To try to provoke program failure.

Which Of the following languages is suitable to use to program a device driver (e.g. a printer driver)?
A Java.
B Pascal.
C Assembly Language.
D C++

A process may be at any time running, ready or suspended. Which of the following
statements is true?
A A process will join the queue Of suspended jobs if, while it is running,
the time slice expires.
B A process is ready if it is waiting for an I/O device to become free
C A process is running if it is in memory, waiting for the process to become free.
D A process is suspended if it is waiting for an I/O device to become free.

An attribute in the context of a relational database may be defined as:
A Something about which data is held.
B A column of a table.
C A row in a table.
D A key field of a table.