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IT Developer Quiz

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IT Developer

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Question 1

What is the purpose of a VPN?

To design web pages

To create databases

To secure internet connections

To store user data

Question 2

Which of the following is a NoSQL database?

MySQL

PostgreSQL

MongoDB

SQLite

Question 3

In which of the following scenarios is a NoSQL database most appropriate?

When complex transactions need to be performed

When the data structure is highly stable and relational

When storing large volumes of unstructured or semi-structured data

When the application requires strong ACID transactions

Question 4

What is the result of the following Java program? import java.util.*; public class Main { public static void main(String[] args) { Set set = new HashSet(); set.add(""A""); set.add(""B""); set.add(""A""); System.out.println(set.size()); } }

1

2

3

0

Question 5

What HTTP status code is returned when a resource is successfully created via a POST request?

200 OK

201 Created

204 No Content

400 Bad Request

Question 6

In Git, what command is used to create a new branch?

git create branch

git checkout -b

git new-branch

git branch -c

Question 7

What is the primary benefit of using immutability in functional programming?

Improved readability of code

Easier concurrency and state management

Faster runtime execution

Reduced memory consumption

Question 8

Which of the following issues can arise in multi-threaded programs when two threads access shared resources without proper synchronization?

Deadlock

Race Condition

Starvation

All of the above

Question 9

Which of the following methods is recommended when deploying a multi-container group that includes only containers?

Azure Resource Management template

Bicep Files

az container creates command

YAML file

Question 10

Which of the following algorithms is NOT suitable for leader election in a distributed system?

Bully algorithm

Paxos

Lamport clocks

Raft

Question 11

What is the default port number for HTTPS?

443

80

22

8080

Question 12

Which SQL query is used to retrieve all data from the 'users' table?

SELECT users FROM *;

GET * FROM users;

SELECT * FROM users;

FETCH ALL users;

Question 13

What is the purpose of the .gitignore file in a Git repository?

To specify files and directories that should not be committed

To enforce coding style rules

To list all files that must be included in every commit

To track the history of all commits

Question 14

In languages like C++, which type of memory allocation requires explicit deallocation by the programmer?

Static Memory

Heap Memory

Stack Memory

Shared Memory

Question 15

Which statement is true about the async keyword in C#?

It makes the method run on a separate thread

It allows the method to return immediately and resume execution later

It guarantees multithreading execution

Question 16

Which tool is commonly used for Continuous Integration/Continuous Deployment (CI/CD) in DevOps?

Terraform

Jenkins

Kubernetes

Question 17

Which approach is the most efficient way to iterate over a large dataset in Python?

Use a for loop with range(len(dataset))

Use list comprehension to store all elements in memory

Use a generator with yield to process elements lazily

Load the entire dataset into a list before processing

Question 18

Which of the components of the Microsoft 365 platform is used to deliver data external to Azure into Microsoft Graph services and applications?

Microsoft Graph API

Microsoft Graph connectors

Microsoft Graph Data Connect

Microsoft Authentication Library

Question 19

Which of the following tools is used for testing API requests?

Figma

GitHub

Excel

Postman

Question 20

In Kubernetes, what is the role of a ‘DaemonSet’?

To run a copy of a pod on all nodes

To manage service discovery

To control horizontal scaling of pods

To handle API gateway requests

Quiz Results

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