OA Exams

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  • December 14, 2024

Question 21

What is a key characteristic of a thick client?

a) It relies on the server for all processing
b) It performs most processing tasks on the client side
c) It requires constant internet access
d) It is limited to local storage only

Correct Answer: b) It performs most processing tasks on the client side

Explanation: Thick clients handle a significant portion of processing internally, reducing dependency on network resources for application execution.

Question 22

What does “endpoint” refer to in cybersecurity?

a) Any device that connects to the network
b) The main server in a network
c) A type of network attack
d) A method of data encryption

Correct Answer: a) Any device that connects to the network

Explanation: Endpoints are individual devices such as computers, smartphones, and tablets that connect to a network and can be potential entry points for cyber threats.

Question 23

What is the purpose of a DNS server?

a) To provide data storage
b) To translate domain names into IP addresses
c) To encrypt data
d) To manage user permissions

Correct Answer: b) To translate domain names into IP addresses

Explanation: DNS servers facilitate the conversion of user-friendly domain names into numerical IP addresses, allowing users to access websites easily.

Question 24

What is a common use of machine learning in cybersecurity?

a) To store large amounts of data
b) To predict and identify potential security threats
c) To manage user permissions
d) To enhance internet speed

Correct Answer: b) To predict and identify potential security threats

Explanation: Machine learning algorithms analyze patterns in data to detect anomalies and predict security threats, enhancing the overall security posture.

Question 25

What is the primary function of a network hub?

a) To connect different networks
b) To broadcast data to all connected devices
c) To filter incoming traffic
d) To encrypt data

Correct Answer: b) To broadcast data to all connected devices

Explanation: Network hubs transmit data packets to all devices connected to them, lacking intelligence to route traffic specifically, making them less efficient than switches.

Question 26

What is the main role of a centralized authentication system?

a) To provide data storage
b) To verify user identities across multiple systems
c) To monitor network performance
d) To encrypt sensitive data

Correct Answer: b) To verify user identities across multiple systems

Explanation: Centralized authentication systems streamline user access management by providing a single point of verification for user credentials across different applications and services.

Question 27

What does “data integrity” ensure?

a) Data can be stored efficiently
b) Data remains accurate and consistent throughout its lifecycle
c) Data is encrypted for security
d) Data can be accessed quickly

Correct Answer: b) Data remains accurate and consistent throughout its lifecycle

Explanation: Data integrity involves maintaining the accuracy, consistency, and reliability of data during its storage, transfer, and processing.

Question 28

What is a potential risk of using public Wi-Fi networks?

a) Enhanced data encryption
b) Increased data transfer speeds
c) Higher chance of data interception by malicious actors
d) Guaranteed privacy

Correct Answer: c) Higher chance of data interception by malicious actors

Explanation: Public Wi-Fi networks often lack security measures, making them susceptible to attacks where attackers can intercept data transmitted over the network.

Question 29

What is the primary function of a password manager?

a) To encrypt sensitive data
b) To store and manage user passwords securely
c) To monitor network performance
d) To manage user access

Correct Answer: b) To store and manage user passwords securely

Explanation: Password managers help users securely store, generate, and manage their passwords, reducing the risk of password-related security breaches.

Question 30

What is a common feature of enterprise resource planning (ERP) systems?

a) They only handle financial data
b) They integrate various business processes into a unified system
c) They are designed for small businesses only
d) They focus solely on customer relationship management

Correct Answer: b) They integrate various business processes into a unified system

Explanation: ERP systems centralize data and streamline processes across departments, enhancing efficiency and collaboration within organizations.

Question 31

What is a feature of a distributed database system?

a) All data is stored in a single location
b) Data is spread across multiple locations but appears as a single database
c) It requires constant internet access
d) It only supports local access

Correct Answer: b) Data is spread across multiple locations but appears as a single database

Explanation: Distributed database systems enhance performance and reliability by allowing data to be stored and accessed from multiple locations while presenting a unified interface.

Question 32

What is the purpose of two-factor authentication (2FA)?

a) To simplify password management
b) To provide an additional layer of security for user accounts
c) To monitor network traffic
d) To encrypt sensitive data

Correct Answer: b) To provide an additional layer of security for user accounts

Explanation: Two-factor authentication requires users to provide two forms of verification, significantly enhancing account security against unauthorized access.

Question 33

What is a key characteristic of an optical drive?

a) It uses magnetic disks to store data
b) It reads and writes data using lasers
c) It is faster than an SSD
d) It requires constant power supply

Correct Answer: b) It reads and writes data using lasers

Explanation: Optical drives utilize laser technology to read and write data on discs, making them suitable for media distribution and data archiving.

Question 34

What is a benefit of using a dedicated server?

a) Lower costs
b) Improved performance and control over resources
c) Easier management
d) Increased user access

Correct Answer: b) Improved performance and control over resources

Explanation: Dedicated servers provide exclusive access to resources, allowing for optimized performance and customization for specific applications.

Question 35

What is the primary role of a database management system (DBMS)?

a) To store data securely
b) To facilitate data organization, retrieval, and management
c) To manage network traffic
d) To encrypt sensitive data

Correct Answer: b) To facilitate data organization, retrieval, and management

Explanation: A DBMS enables users to efficiently manage and manipulate data, supporting various operations such as queries, updates, and transactions.

Question 36

What does “network redundancy” aim to achieve?

a) Increased data security
b) Improved network performance
c) Enhanced data storage capacity
d) Increased availability and reliability of the network

Correct Answer: d) Increased availability and reliability of the network

Explanation: Network redundancy involves adding extra components to ensure continuous network operation even in case of failures, enhancing overall reliability.

Question 37

What is a common feature of a mobile device operating system?

a) Support for multitasking
b) Compatibility with desktop applications
c) Limited access to hardware resources
d) Optimized for touch interfaces

Correct Answer: d) Optimized for touch interfaces

Explanation: Mobile operating systems are designed to support touch-based interactions, providing user-friendly interfaces for smartphones and tablets.

Question 38

What is the function of a certificate authority (CA)?

a) To monitor network traffic
b) To issue digital certificates for secure communications
c) To manage user permissions
d) To store sensitive data

Correct Answer: b) To issue digital certificates for secure communications

Explanation: Certificate authorities authenticate identities and issue digital certificates that facilitate secure communications over the internet.

Question 39

What does the term “IP address” refer to?

a) A security protocol
b) A unique numerical label assigned to each device connected to a network
c) A type of data encryption
d) A network monitoring tool

Correct Answer: b) A unique numerical label assigned to each device connected to a network

Explanation: IP addresses are essential for identifying devices on a network and facilitating communication between them.

Question 40

What is the primary role of an authentication protocol?

a) To encrypt data
b) To verify user identities and credentials
c) To monitor network performance
d) To store backup data

Correct Answer: b) To verify user identities and credentials

Explanation: Authentication protocols establish methods for verifying the identity of users or devices before granting access to network resources.

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