What is a DNS server responsible for in the context of the internet?
Storing email messages
Translating domain names into IP addresses
Managing network hardware
Providing web hosting services
Correct Answer :
B. Translating domain names into IP addresses
Related Questions
Which programming language is often used for web development?
Python
Java
HTML
C++
What is the purpose of an index in a database?
To sort data alphabetically
To store backup copies of data
To optimize data retrieval by providing fast access to specific records
To encrypt data
What is a function signature in programming?
A unique identifier for a function
The name of a function
The body of a function
A comment within a function
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 does the term algorithmic complexity refer to?
The speed at which a program executes
The size of a program's source code
The number of bugs in a program
The amount of memory used by a program
Which data structure uses a First-In-First-Out (FIFO) order?
Stack
Queue
Linked List
Binary Tree
What is the purpose of the continue statement in programming?
To exit a loop prematurely
To define a function
To print output to the console
To create a loop
Which of the following is not a valid type of computer network?
Local Area Network (LAN)
Wide Area Network (WAN)
Personal Area Network (PAN)
Personal Computer Network (PCN)
What is the purpose of a database management system (DBMS)?
To display web pages
To protect against viruses
To store, retrieve, and manage data in a database
To create graphics
What is the purpose of a conditional statement in programming?
To define a function
To repeat a block of code a specific number of times
To make decisions and execute code conditionally
To display information on the screen
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 purpose of the do-while loop in programming?
To execute a block of code a specific number of times
To create graphics
To make decisions and execute code conditionally
To repeat a block of code while a condition is true, with the condition checked after the loop body
Which of the following is not a valid programming construct in Python?
for loop
if statement
switch statement
while loop
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 does DNS stand for in the context of the internet?
Domain Name System
Dynamic Network Service
Digital Naming Service
Data Network System
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 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 42?
00101010
10101010
11010010
01010101
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
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 does IP stand for in the context of computer networking?
Internet Protocol
Internal Processor
Information Provider
Internet Program
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.
What is a loop in programming?
A bug in the code
A function that repeats a specific task
A variable that stores multiple values
A conditional statement
What is an algorithm in computer science?
A type of data structure
A step-by-step procedure for solving a problem
A type of programming language
A hardware component
Which of the following is a valid way to define a constant in Python?
const pi = 3.14159
final float PI = 3.14159
PI = 3.14159
constant PI = 3.14159
In binary, what is the result of the bitwise OR operation (|) between 1010 and 1100?
1000
1110
0110
1010
What is the purpose of a function in programming?
To store data
To perform a specific task or calculation
To display information on the screen
To create graphics
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 an operating system's file system?
To organize and manage files and directories on storage devices
To connect to the internet
To display graphics on the screen
To execute programs
What is the purpose of the return statement in a function in most programming languages?
To exit the program
To print a message to the console
To stop a loop
To return a value from a function