C191 Operating Systems for Programmers Practice Questions - Set 5 - Part 2

Test your knowledge of data-driven decision making concepts with these practice questions. Each question includes detailed explanations to help you understand the correct answers.

Question 21: What is the purpose of "data encryption"?

A) To compress data

B) To secure sensitive information

C) To increase data access speed

D) To back up data

Question 22: Which of the following is an example of "non-volatile memory"?

A) RAM

B) Cache

C) SSD

D) CPU registers

Question 23: What does "load balancing" refer to in computer networking?

A) Distributing network traffic across multiple servers

B) Increasing server storage capacity

C) Securing network connections

D) Improving data compression

Question 24: Which of the following is a characteristic of "open-source software"?

A) It is only available for free

B) The source code can be modified and shared

C) It is maintained by a single company

D) It has limited user support

Question 25: What does "high availability" in systems design refer to?

A) Reduced cost of operation

B) The ability to remain operational over time

C) High performance during peak loads

D) Increased data redundancy

Question 26: What is the role of a "router" in a network?

A) To amplify signals

B) To connect different networks and route data packets

C) To encrypt data transmissions

D) To store network configurations

Question 27: What is "SQL" primarily used for?

A) Programming web applications

B) Managing and querying relational databases

C) Designing user interfaces

D) Encrypting data

Question 28: What is the primary function of "RAM" in a computer?

A) To permanently store data

B) To temporarily store data for quick access

C) To provide network connectivity

D) To manage hardware resources

Question 29: What is the main goal of "software testing"?

A) To develop new features

B) To ensure software meets requirements and is bug-free

C) To optimize performance

D) To secure the software

Question 30: What does "phishing" involve?

A) Hacking into a computer system

B) Sending fraudulent messages to trick individuals into revealing sensitive information

C) Creating fake websites to sell products

D) Installing malware on a user's device

Question 31: What is a "data breach"?

A) The unauthorized access of confidential data

B) A method to enhance data security

C) The process of data encryption

D) A type of software testing

Question 32: What does "network latency" refer to?

A) The maximum speed of a network

B) The time delay in data transmission over a network

C) The amount of data a network can handle

D) The distance between network devices

Question 33: What is the function of a "gateway" in networking?

A) To connect two different networks

B) To amplify network signals

C) To manage user access

D) To encrypt data

Question 34: Which of the following is an example of a "block storage" solution?

A) SSD (Solid State Drive)

B) Cloud storage

C) RAM

D) Database

Question 35: What is the purpose of "data normalization" in databases?

A) To increase data redundancy

B) To reduce data anomalies and redundancy

C) To enhance data security

D) To back up data

Question 36: What is the role of a "data warehouse"?

A) To perform real-time transactions

B) To store large volumes of historical data for analysis

C) To provide data security

D) To manage operational processes

Question 37: Which of the following best describes "Big Data"?

A) Data that is too large for traditional data processing software

B) Data that is encrypted for security

C) Small datasets used for quick analysis

D) Data that is only stored in the cloud

Question 38: What does "two-factor authentication" (2FA) enhance?

A) Network speed

B) Data compression

C) Security of user accounts

D) File storage capacity

Question 39: What is "user acceptance testing" (UAT)?

A) Testing the speed of the application

B) Testing conducted by end-users to validate functionality before deployment

C) A test for hardware compatibility

D) A security test for vulnerabilities

Question 40: What is the main function of "antivirus software"?

A) To back up data

B) To detect and remove malware

C) To optimize system performance

D) To manage network traffic

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