OA Exams

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  • November 25, 2024

Question 21

What is the primary advantage of using RAID 1?

a) Increased storage capacity
b) Improved performance
c) Data redundancy through mirroring
d) Simplified backup processes

Correct Answer: c) Data redundancy through mirroring

Explanation: RAID 1 duplicates data across two drives, providing a backup in case one drive fails, enhancing data availability.

Question 22

What does the term “data governance” refer to?

a) Data storage techniques
b) The management of data availability, usability, integrity, and security
c) Data encryption methods
d) Data backup strategies

Correct Answer: b) The management of data availability, usability, integrity, and security

Explanation: Data governance ensures that data is properly managed throughout its lifecycle, establishing policies for data quality and compliance.

Question 23

What is the main purpose of an incident response plan?

a) To manage user access
b) To prepare for and respond to security incidents effectively
c) To encrypt sensitive data
d) To store backup data

Correct Answer: b) To prepare for and respond to security incidents effectively

Explanation: An incident response plan outlines procedures for identifying, managing, and mitigating security breaches, enhancing organizational resilience.

Question 24

What does “data deduplication” accomplish?

a) It compresses data for storage
b) It removes duplicate copies of data to save space
c) It encrypts sensitive data
d) It manages user permissions

Correct Answer: b) It removes duplicate copies of data to save space

Explanation: Data deduplication minimizes storage needs by eliminating redundant copies of data, optimizing storage efficiency.

Question 25

What is the role of a data analyst?

a) To manage user access
b) To collect, process, and analyze data to inform business decisions
c) To enhance network security
d) To monitor network traffic

Correct Answer: b) To collect, process, and analyze data to inform business decisions

Explanation: Data analysts interpret data to provide insights and support strategic decision-making within organizations.

Question 26

What is a primary feature of a public cloud?

a) It is dedicated to a single organization
b) It is available to anyone who wants to use it
c) It requires high maintenance
d) It has stricter security protocols than private clouds

Correct Answer: b) It is available to anyone who wants to use it

Explanation: Public clouds offer services to the general public, providing scalability and cost-effectiveness for various users and organizations.

Question 27

What does “network throughput” measure?

a) The amount of data transmitted successfully over a network in a given time
b) The speed of data transfer
c) The capacity of a network
d) The security level of data transmission

Correct Answer: a) The amount of data transmitted successfully over a network in a given time

Explanation: Network throughput indicates the actual data transfer rate, reflecting the performance and efficiency of a network connection.

Question 28

What is the purpose of a security information and event management (SIEM) system?

a) To store data securely
b) To collect and analyze security data from across the network
c) To manage user permissions
d) To encrypt sensitive data

Correct Answer: b) To collect and analyze security data from across the network

Explanation: SIEM systems centralize security monitoring, enabling organizations to detect and respond to threats in real-time.

Question 29

What is the primary function of a network gateway?

a) To provide storage for files
b) To connect different networks and manage traffic between them
c) To enhance data security
d) To monitor network performance

Correct Answer: b) To connect different networks and manage traffic between them

Explanation: Gateways serve as entry and exit points for data, facilitating communication between networks with different protocols.

Question 30

What is the function of a web server?

a) To manage user permissions
b) To host websites and serve web content to users
c) To encrypt data
d) To monitor network traffic

Correct Answer: b) To host websites and serve web content to users

Explanation: Web servers store, process, and deliver web pages to users over the internet, making them essential for online presence.

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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