NTA Computer Science and Technology 2

Question 1

Which layer of the OSI model is responsible for routing packets?

Accepted Answer

Network Layer

Answer

The Network Layer (Layer 3) is responsible for logical addressing and routing of packets between networks.

Question 2

What does CPU stand for?

Accepted Answer

Central Processing Unit

Answer

CPU stands for Central Processing Unit, the primary component of a computer that executes instructions.

Question 3

Which of the following is an object-oriented programming language?

Accepted Answer

Java

Answer

Java is a fully object-oriented programming language built around classes and objects.

Question 4

The primary key in a relational database is used to:

Accepted Answer

Uniquely identify each record

Answer

A primary key uniquely identifies each row in a database table and cannot contain NULL values.

Question 5

What does RAM stand for?

Accepted Answer

Random Access Memory

Answer

RAM stands for Random Access Memory, the computer's short-term memory used during active processing.

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