SS3 third Term computer science past questions and answers

SS3 third Term computer science past questions and answers

SS3 computer science questions with options and answers:

Question: What is the purpose of the "this" keyword in object-oriented programming?

A) Reference to the current instance of the class

B) Define a new class

C) Specify data types

D) Declare a variable

Answer: A

Question: Which of the following is a type of cyber-attack that involves deceiving individuals to obtain sensitive information?

A) Denial-of-Service (DoS)

B) Phishing

C) SQL Injection

D) Cross-Site Scripting (XSS)

Answer: B

Question: What is the purpose of the "modulus" (%) operator in programming?

A) Perform division

B) Calculate the remainder

C) Multiply two numbers

D) Compare values

Answer: B

Question: Which data structure is used to represent a hierarchical relationship between elements?

A) Stack

B) Queue

C) Tree

D) Array

Answer: C

Question: In networking, what is the role of a MAC address?

A) Identify a device on a network

B) Assign an IP address

C) Control internet speed

D) Encrypt data transmission

Answer: A

Question: What is the purpose of the "continue" statement in programming?

A) End the program

B) Skip the rest of the code in a loop and move to the next iteration

C) Execute a specific block of code

D) Define a function

Answer: B

Question: Which programming language is commonly used for web development on the client-side?

A) Java

B) PHP

C) JavaScript

D) Ruby

Answer: C

Question: What does DNSSEC (Domain Name System Security Extensions) provide?

A) Faster internet speed

B) Secure DNS communication against tampering

C) Improved website design

D) Encryption of user data

Answer: B

Question: In database management, what is a primary key?

A) A key used for encryption

B) A unique identifier for each record in a table

C) A key used to access the database

D) A key used for sorting records

Answer: B

Question: What is the purpose of the "malloc" function in C programming?

A) Print text to the console

B) Allocate memory dynamically

C) Create a new file

D) Sort elements in an array

Answer: B

Question: Which of the following is an example of a network topology?

A) Loop

B) Bubble sort

C) Star

D) XOR gate

Answer: C

Question: What is the role of an index in a database?

A) Sort data alphabetically

B) Provide a quick access path to specific data in a table

C) Encrypt data

D) Create backups

Answer: B

Question: Which programming concept is associated with the term "polymorphism"?

A) Data encapsulation

B) Multiple inheritance

C) Multiple forms of a function or method

D) Exception handling

Answer: C

Question: What is the purpose of the "chmod" command in Unix-based operating systems?

A) Change the system clock

B) Modify file permissions

C) Create a new directory

D) Compile source code

Answer: B

Question: What is the significance of the "404" HTTP status code?

A) Successful request

B) Unauthorized access

C) Page not found

D) Internal server error

Answer: C

Question: Which data type is used to store a sequence of characters in programming?

A) Integer

B) Float

C) String

D) Boolean

Answer: C

Question: What is the purpose of a foreign key in a relational database?

A) Sort data in a table

B) Establish a link between tables

C) Encrypt data

D) Create a backup

Answer: B

Question: In the context of software development, what is a code review?

A) Compiling source code

B) Analyzing and evaluating code by peers

C) Testing software functionality

D) Debugging errors

Answer: B

Question: What is the primary function of the Internet Protocol (IP)?

A) Encrypt data transmission

B) Control internet speed

C) Identify and locate devices on a network

D) Manage email communication

Answer: C

Question: Which type of programming language allows low-level interaction with computer hardware?

A) High-level language

B) Assembly language

C) Scripting language

D) Markup language

Answer: B