Computer Science questions and answers

Computer Science Questions and Answers

Challenge your competence level in computers, computing, algorithms, hardware and software with these Computer science questions and answers.

266.

The binary system has the radix of ________

A.

0

B.

1

C.

2

D.

½

Correct answer is C

Binary consists of two digits, hence its radix being 2.

267.

How many different values can a bit have?

A.

2

B.

4

C.

10

D.

256

Correct answer is A

A bit can have 2 different values

268.

Java is a ______ language

A.

High level

B.

Low level

C.

Machine

D.

Algorithm

Correct answer is A

Java is a high level language because, the program is designed to interact with humans, and not the computer

269.

A tier in which the database resides along with the query processing language is called

A.

application tier

B.

data tier

C.

presentation tier

D.

model tier

Correct answer is B

This is the data tier, and this is why it is also called the database tier.

270.

The end users are able to operate at the _______ tier.

A.

model

B.

application

C.

data

D.

presentation

Correct answer is D

The presentation tier is the user interface and communication layer of the application where the end user interacts with the application