Aplus Core1 Sample Test Questions

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Question 1: What is the primary purpose of the BIOS in a computer?

• A. Execute application programs
• B. Manage hardware communication
• C. Control user authentication
• D. Provide user interface customization

Answer: B. Manage hardware communication

Explanation: The Basic Input/Output System (BIOS) in a computer is responsible for managing hardware communication. It initializes hardware components during the boot process and provides a bridge between the operating system and the computer's hardware.

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Question 2: Which networking device operates at Layer 2 of the OSI model and uses MAC addresses for forwarding decisions?

• A. Router
• B. Hub
• C. Switch
• D. Bridge

Answer: C. Switch

Explanation: A switch operates at Layer 2 (Data Link layer) of the OSI model. It uses MAC addresses to forward data to the appropriate devices within a local network.

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Question 3: What is the purpose of DHCP in a network?

• A. Assigning static IP addresses
• B. Resolving domain names to IP addresses
• C. Dynamically assigning IP addresses to devices
• D. Encrypting data during transmission

Answer: C. Dynamically assigning IP addresses to devices

Explanation: Dynamic Host Configuration Protocol (DHCP) dynamically assigns IP addresses to devices in a network, simplifying the management of IP addresses and configuration settings.

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Question 4: Which of the following connectors is commonly used for analog audio connections?

• A. HDMI
• B. DisplayPort
• C. RCA
• D. Thunderbolt

Answer: C. RCA

Explanation: RCA connectors are commonly used for analog audio connections. They typically have red and white plugs for stereo audio.

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Question 5: Which command is used to display the IP configuration of a Windows device in the command prompt?

• A. ipconfig
• B. ifconfig
• C. netstat
• D. ping

Answer: A. ipconfig

Explanation: The "ipconfig" command in the Windows command prompt is used to display the IP configuration of the device, including its IP address, subnet mask, and default gateway.

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Question 6: What is the purpose of the DNS (Domain Name System)?

• A. To map IP addresses to domain names
• B. To map domain names to IP addresses
• C. To secure network traffic
• D. To manage network devices

Answer: B. To map domain names to IP addresses

Explanation: The Domain Name System (DNS) is used to translate human-readable domain names into IP addresses, enabling users to access resources using easily memorable names.

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Question 7: Which type of memory is volatile and loses its contents when the power is turned off?

• A. RAM
• B. ROM
• C. Flash
• D. Cache

Answer: A. RAM

Explanation: Random Access Memory (RAM) is volatile memory that loses its contents when the power is turned off. It is used for temporary storage of data and program code.

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Question 8: Which RAID level provides both data striping and mirroring for fault tolerance?

• A. RAID 0
• B. RAID 1
• C. RAID 5
• D. RAID 10

Answer: D. RAID 10

Explanation: RAID 10 (or RAID 1+0) provides both data striping and mirroring. It combines the advantages of RAID 1 (mirroring) and RAID 0 (striping) for improved fault tolerance and performance.

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Question 9: What is the purpose of the Task Manager in Windows?

• A. Monitor network traffic
• B. Manage installed programs
• C. Monitor system performance
• D. Control user access permissions

Answer: C. Monitor system performance

Explanation: The Task Manager in Windows is used to monitor system performance, view running processes, and manage system resources. It provides insights into CPU usage, memory, and disk activity.

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Question 10: Which type of malware disguises itself as legitimate software?

• A. Spyware
• B. Adware
• C. Trojan
• D. Worm

Answer: C. Trojan

Explanation: A Trojan is a type of malware that disguises itself as legitimate software to trick users into installing it. Once installed, it may perform malicious activities without the user's knowledge.

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Question 11: What is the purpose of a KVM switch in IT infrastructure?

• A. Manage network security
• B. Control server room temperature
• C. Switch between multiple computers with a single keyboard, monitor, and mouse
• D. Monitor power consumption

Answer: C. Switch between multiple computers with a single keyboard, monitor, and mouse

Explanation: A KVM (Keyboard, Video, Mouse) switch allows users to control multiple computers with a single set of input devices (keyboard, monitor, and mouse). It simplifies the management of multiple systems.

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Question 12: Which Windows utility is used to partition and format storage drives?

• A. Device Manager
• B. Disk Cleanup
• C. Disk Management
• D. System Configuration

Answer: C. Disk Management

Explanation: Disk Management is a Windows utility used to partition and format storage drives. It allows users to create, delete, and manage disk partitions.

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Question 13: Which file system is commonly used in macOS?

• A. NTFS
• B. FAT32
• C. HFS+
• D. ext4

Answer: C. HFS+

Explanation: HFS+ (Hierarchical File System Plus) is a file system commonly used in macOS for organizing and managing files on storage devices.

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Question 14: What is the primary function of a network firewall?

• A. Encrypt data during transmission
• B. Monitor system performance
• C. Control network access and traffic
• D. Manage IP addresses

Answer: C. Control network access and traffic

Explanation: A network firewall is designed to control network access and traffic by monitoring and filtering incoming and outgoing data based on predetermined security rules.

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Question 15: Which wireless encryption protocol is considered the most secure?

• A. WEP
• B. WPA
• C. WPA2
• D. WPA3

Answer: D. WPA3

Explanation: WPA3 (Wi-Fi Protected Access 3) is the latest and most secure wireless encryption protocol. It improves upon the security features of WPA2.

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Question 16: What is the purpose of the MBR (Master Boot Record) in a storage device?

• A. Store the operating system
• B. Manage disk partitions
• C. Encrypt data
• D. Control network access

Answer: B. Manage disk partitions

Explanation: The Master Boot Record (MBR) is a sector on a storage device that contains information about the disk's partitions and the boot loader. It plays a crucial role in managing disk partitions.

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Question 17: Which protocol is commonly used for secure remote access to a network?

• A. FTP
• B. SSH
• C. Telnet
• D. SNMP

Answer: B. SSH

Explanation: SSH (Secure Shell) is commonly used for secure remote access to a network. It provides encrypted communication for secure login and data exchange.

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Question 18: What is the purpose of the POST (Power-On Self-Test) during the computer boot process?

• A. Load the operating system
• B. Check and initialize hardware components
• C. Establish network connectivity
• D. Manage user authentication

Answer: B. Check and initialize hardware components

Explanation: The POST (Power-On Self-Test) is a diagnostic process during the computer boot process. It checks and initializes hardware components to ensure they are functioning correctly.

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Question 19: Which utility is used to manage user accounts and security settings in Windows?

• A. Control Panel
• B. Task Manager
• C. System Configuration
• D. Computer Management

Answer: A. Control Panel

Explanation: Control Panel in Windows is a utility used to manage user accounts, security settings, and various system configurations.

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Question 20: What is the purpose of the TRACERT command in networking?

• A. Display IP configuration
• B. Troubleshoot network connectivity
• C. Monitor system performance
• D. Encrypt data during transmission

Answer: B. Troubleshoot network connectivity

Explanation: The TRACERT command is used to trace the route that packets take to reach a destination, helping troubleshoot network connectivity issues by identifying the path and potential delays.