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Computer Fundamentals Multiple Choice Questions (MCQs) and Answers

Master Computer Fundamentals with Practice MCQs. Explore our curated collection of Multiple Choice Questions. Ideal for placement and interview preparation, our questions range from basic to advanced, ensuring comprehensive coverage of Computer Fundamentals. Begin your placement preparation journey now!

Q121

Q121 What is Quantum Computing primarily focused on improving?

A

Classical computer processing speed

B

Data storage capacity

C

The ability to solve complex problems using quantum bits (qubits)

D

User interface design

Q122

Q122 Which technology underpins the functionality of cryptocurrencies like Bitcoin?

A

Cloud Computing

B

Artificial Intelligence

C

Blockchain

D

Machine Learning

Q123

Q123 What is the primary purpose of the Internet of Things (IoT)?

A

To connect devices and enable them to communicate with each other

B

To store large amounts of data

C

To replace traditional databases

D

To improve video streaming

Q124

Q124 In Machine Learning, what is the purpose of a training dataset?

A

To test the model

B

To train the model to recognize patterns

C

To deploy the model

D

To debug the model

Q125

Q125 In Blockchain technology, what is a "smart contract"?

A

A physical contract between two parties

B

A legal document

C

A self-executing contract with the terms of the agreement directly written into code

D

A type of cryptocurrency

Q126

Q126 A Machine Learning model is overfitting.
What could be a solution to this problem?

A

Increase the model complexity

B

Add more data and use regularization techniques

C

Remove data

D

Decrease training time

Q127

Q127 A Blockchain transaction is not being confirmed.
What might be the reason?

A

The transaction fee is too low

B

The blockchain is offline

C

There are too many nodes

D

The smart contract is incorrect

Q128

Q128 What is the primary advantage of using cloud computing?

A

Improved hardware performance

B

Increased data security

C

Scalability and cost efficiency

D

Enhanced user interface

Q129

Q129 Which type of cloud service model provides virtualized computing resources over the internet?

A

SaaS (Software as a Service)

B

PaaS (Platform as a Service)

C

IaaS (Infrastructure as a Service)

D

DaaS (Desktop as a Service)

Q130

Q130 What is the main difference between public and private clouds?

A

Public clouds are more secure

B

Private clouds are only accessible to one organization

C

Public clouds are used for storage only

D

Private clouds are less expensive

Q131

Q131 What is "cloud bursting" in the context of hybrid cloud computing?

A

A security breach in the cloud

B

Using public cloud resources temporarily when private cloud resources are insufficient

C

Migrating all workloads to the public cloud

D

Creating a new cloud service from scratch

Q132

Q132 In AWS (Amazon Web Services), which service is used for object storage?

A

EC2

B

S3

C

Lambda

D

RDS

Q133

Q133 Which of the following cloud deployment models offers a mix of both public and private cloud environments?

A

Private Cloud

B

Public Cloud

C

Hybrid Cloud

D

Community Cloud

Q134

Q134 In Azure, which service is used to deploy and manage virtual machines?

A

Azure Functions

B

Azure Blob Storage

C

Azure Virtual Machines

D

Azure Kubernetes Service

Q135

Q135 A cloud application is experiencing latency issues.
What could be a potential cause?

A

High CPU utilization

B

Network congestion

C

Incorrect DNS settings

D

Insufficient disk space

Q136

Q136 A company is experiencing data loss in their cloud storage service.
What should they check first?

A

The storage capacity

B

The data redundancy options

C

The server location

D

The user permissions

Q137

Q137 What is the main goal of supervised learning in Machine Learning?

A

To group data into clusters

B

To reduce the dimensionality of data

C

To train a model using labeled data

D

To generate new data

Q138

Q138 Which algorithm is commonly used for classification tasks in Machine Learning?

A

K-Means Clustering

B

Linear Regression

C

Support Vector Machines (SVM)

D

Principal Component Analysis (PCA)

Q139

Q139 What is "overfitting" in the context of Machine Learning?

A

When a model performs well on training data but poorly on new data

B

When a model is too simple

C

When a model is underfitting

D

When a model generalizes well

Q140

Q140 Which type of neural network is most commonly used for image recognition tasks?

A

Recurrent Neural Networks (RNN)

B

Convolutional Neural Networks (CNN)

C

Generative Adversarial Networks (GAN)

D

Feedforward Neural Networks

Q141

Q141 In Python, which library is commonly used for building Machine Learning models?

A

Pandas

B

NumPy

C

Matplotlib

D

Scikit-learn

Q142

Q142 What does the following Python code snippet do:
model.fit(X_train, y_train)?

A

Trains the model on the training data

B

Predicts the output of the model

C

Evaluates the model

D

Splits the data into training and testing sets

Q143

Q143 A Machine Learning model shows high accuracy on training data but low accuracy on testing data.
What could be the issue?

A

The model is underfitting

B

The data is noisy

C

The model is overfitting

D

The algorithm is incorrect

Q144

Q144 A neural network is not learning during training, and the loss remains constant.
What could be the reason?

A

Too many layers

B

Incorrect activation function

C

Too much data

D

High learning rate

Q145

Q145 What is digital literacy?

A

The ability to read books

B

The ability to use digital devices and the internet effectively

C

The ability to write code

D

The ability to fix hardware

Q146

Q146 Which of the following is an example of responsible digital citizenship?

A

Sharing false information

B

Cyberbullying

C

Respecting others' privacy online

D

Piracy

Q147

Q147 What is the primary purpose of an internet browser?

A

To manage files

B

To create graphics

C

To access and navigate websites

D

To design websites

Q148

Q148 What is the digital divide?

A

A type of network

B

The gap between those who have access to digital technologies and the internet and those who do not

C

A programming language

D

A software development methodology

Q149

Q149 Which HTML tag is used to create a numbered list?

A

<ul>

B

<ol>

C

<li>

D

<dl>

Q150

Q150 A user is unable to connect to the internet on their computer.
What is the first step they should take to troubleshoot?

A

Reboot the computer

B

Check the network cables and Wi-Fi connection

C

Install a new operating system

D

Replace the router

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