What is a variable in programming?
A value that cannot be changed
A container for storing data
A type of loop
A function
Correct Answer :
B. A container for storing data
Related Questions
Which of the following is not a valid data structure in Python?
List
Tuple
Stack
String
What is the primary function of an operating system?
To manage hardware resources and provide services for software
To run applications
To create graphics
To store data
What does CPU stand for?
Central Processing Unit
Computer Programming Unit
Central Program Unit
Computer Processing Unit
What is a primary key in a database table?
A key used to unlock the database
A key used for encryption
A unique identifier for each record in the table
A key used for sorting records
What is the purpose of the elif statement in Python?
It is used to define a new variable.
It is used to handle exceptions.
It is used to execute code if the if condition is false.
It is used to test multiple conditions sequentially.
Which programming paradigm is based on the concept of objects?
Functional programming
Procedural programming
Object-oriented programming
Declarative programming
What is the binary equivalent of the decimal number 25?
11001
11100
10011
11010
What is the main purpose of a function in programming?
To store data
To execute code in a random order
To perform a specific task or computation
To create graphics
Which of the following is an example of a network protocol?
JPEG
HTTP
MP3
PNG
What is a database schema?
A database query
A blueprint that defines the structure and organization of a database
A database table
A database index
What is the purpose of the while loop in programming?
To execute a block of code a specific number of times
To define a function
To make decisions and execute code conditionally
To repeat a block of code while a condition is true
What is the purpose of the break statement in programming?
To create a loop
To exit a loop prematurely
To define a function
To print output to the console
What is the binary representation of the decimal number 8?
1000
1001
100
1010
What is the purpose of the for loop in programming?
To execute a block of code a specific number of times
To make decisions and execute code conditionally
To define a function
To create graphics
Which of the following is a valid way to comment out code in Python?
/* This is a comment */
// This is a comment
# This is a comment
What is the purpose of the finally block in a try-except-finally construct in Python?
To define a function
To execute code regardless of whether an exception occurred
To create graphics
To repeat a block of code
What is the purpose of a constructor in object-oriented programming?
To define a function
To create graphics
To initialize the attributes of an object when it is created
To exit a loop
What is the binary representation of the decimal number 42?
00101010
10101010
11010010
01010101
Which of the following is not a fundamental data type in Python?
int
float
list
char
What does HTTP stand for in the context of web communication?
HyperText Transfer Protocol
HyperTransfer Text Protocol
HyperTransfer Transfer Protocol
HyperText Text Protocol
What is a data structure in programming?
A type of loop
A category of values with a common set of operations
A programming language
A set of rules for writing code
What is a conditional operator in programming?
An operator that performs mathematical calculations
An operator that combines two values
An operator that evaluates a condition and returns one of two values based on the condition
An operator that compares two values for equality
Which of the following is a valid way to define a variable in Python?
variableName = 42
variableName := 42
42 = variableName
variableName -> 42
What is the purpose of the else statement in programming?
To define a new variable
To handle exceptions
To execute code if the if condition is true
To execute code if the if condition is false
What is a network firewall used for?
To protect against physical intrusions
To block unwanted network traffic and protect a network from unauthorized access
To boost network speed
To filter spam emails
What is the purpose of the switch statement in programming?
To execute code based on multiple conditions
To define a function
To create graphics
To exit a loop
Which of the following is not a valid programming construct in Python?
for loop
if statement
switch statement
while loop
What does the term protocol mean in the context of computer networking?
A set of rules and conventions for communication between devices
A type of hardware
A programming language
A software application
What is the purpose of a database index?
To prevent data corruption
To optimize data retrieval by providing fast access to specific records
To store large amounts of data
To encrypt data
What is a data type in programming?
A programming language
A set of rules for writing code
A category of values with a common set of operations
A loop