JAMB Computer Science Past Questions & Answers - Page 48

236.

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

237.

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.

238.

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

239.

What is a computer file.

A.

A computer program

B.

A document like bunch of text

C.

A place on a computer where information is stored in a package

D.

A physical paper document that entails how a computer works

Correct answer is C

A computer file is a computer resource for recording data in a computer storage device, primarily identified by its file name

240.

In the files, if order of operation on two or more files are similar, then operation will be

A.

complex

B.

simple

C.

sequential

D.

combinational

Correct answer is C

The operation will be simple in this case