View Full CompTIA Tech+ FC0-U71 Exam Dumps and Practice Test Dumps

 

Question 21.

Which component stores the firmware instructions used during the startup process?

1. RAM
   2. Firmware memory
   3. CPU cache
   4. Virtual memory

Correct Answer: 2. Firmware memory

Explanation:

Firmware is low-level software stored in nonvolatile memory on a device. In a computer, firmware such as UEFI contains instructions used to initialize hardware and begin the startup process before the operating system loads. RAM is volatile working memory, while CPU cache stores frequently used processor data and instructions for fast access. Virtual memory uses storage space to supplement physical RAM. Firmware provides the initial control logic required for hardware configuration, boot-device selection, and basic system initialization before the operating system takes control.

Question 22.

Which firmware interface is commonly used on modern PCs as the successor to traditional BIOS?

1. DHCP
   2. DNS
   3. NTFS
   4. UEFI

Correct Answer: 4. UEFI

Explanation:

UEFI, or Unified Extensible Firmware Interface, is the modern firmware standard used on many PCs. It performs hardware initialization and starts the boot process, similar to the role historically performed by BIOS. UEFI supports features such as larger boot drives, graphical configuration interfaces, Secure Boot, and more flexible startup options. DHCP and DNS are networking services, while NTFS is a file system. Understanding UEFI is useful when changing boot order, enabling virtualization support, troubleshooting startup problems, or configuring security-related firmware settings.

Question 23.

Which storage interface is commonly used to connect traditional internal hard drives and many SATA SSDs?

1. SATA
   2. HDMI
   3. Bluetooth
   4. VGA

Correct Answer: 1. SATA

Explanation:

SATA, or Serial ATA, is commonly used to connect internal hard disk drives, optical drives, and many solid-state drives to a computer motherboard. HDMI and VGA are display interfaces, while Bluetooth is a short-range wireless technology. Although newer NVMe SSDs often use PCIe-based interfaces and M.2 form factors, SATA remains widely recognized for storage connectivity. Understanding interface types helps determine device compatibility and identify why a replacement storage device may or may not work with a particular system.

Question 24.

Which interface is commonly used by high-performance NVMe solid-state drives?

1. PS/2
   2. Parallel port
   3. PCIe
   4. VGA

Correct Answer: 3. PCIe

Explanation:

NVMe solid-state drives commonly communicate using PCI Express, or PCIe, which provides significantly higher performance than older SATA interfaces. Many NVMe drives use an M.2 physical form factor, but M.2 describes the connector and form factor rather than guaranteeing NVMe operation. PS/2 is associated with legacy keyboards and mice, VGA is an analog display interface, and parallel ports were commonly used by older printers. Understanding both physical form factor and communication protocol is important when upgrading storage devices.

Question 25.

Which file extension is most likely associated with a plain text file?

1. .exe
   2. .txt
   3. .jpg
   4. .mp3

Correct Answer: 2. .txt

Explanation:

The .txt extension commonly identifies a plain text file containing unformatted text. A .jpg file normally contains a compressed image, .mp3 is commonly used for audio, and .exe identifies an executable program on Windows systems. File extensions help users and operating systems determine what type of content a file contains and which application should open it. However, an extension alone does not guarantee that a file is safe or that its actual contents match the displayed type, so users should remain cautious with unknown files.

Question 26.

Which file type is most likely to contain a compressed digital image?

1. .txt
   2. .bat
   3. .csv
   4. .jpg

Correct Answer: 4. .jpg

Explanation:

JPEG files, commonly using the .jpg or .jpeg extension, store compressed digital images. JPEG compression is widely used for photographs because it can significantly reduce file size. A .txt file stores plain text, .csv commonly stores tabular data separated by commas or similar delimiters, and .bat is associated with Windows batch scripts. Recognizing common file extensions helps users select appropriate applications, organize information, and avoid accidentally executing scripts or programs when they expected to open a document or image.

Question 27.

Which file format is commonly used to store tabular data in a simple text-based structure?

1. CSV
   2. PNG
   3. EXE
   4. MP4

Correct Answer: 1. CSV

Explanation:

CSV stands for comma-separated values and is a simple text-based format commonly used to store tabular information. Each line usually represents a row, while values are separated by commas or another delimiter. Spreadsheet and database applications can often import and export CSV files. PNG is an image format, MP4 is commonly used for multimedia, and EXE represents executable software on Windows. CSV is useful for exchanging data between applications because the structure is simple and broadly supported.

Question 28.

Which application type is primarily used to create and edit documents containing formatted text?

1. Media player
   2. Packet analyzer
   3. Word processor
   4. Hypervisor

Correct Answer: 3. Word processor

Explanation:

A word processor is designed for creating, editing, formatting, and printing text-based documents. Typical features include font controls, headings, tables, spell checking, page layout, and document templates. Media players are used to play audio or video, hypervisors manage virtual machines, and packet analyzers inspect network traffic. Word processors are common productivity applications used for reports, letters, resumes, and other documents. Understanding application categories helps users select the correct software for a task and troubleshoot incompatible file formats.

Question 29.

Which application type is primarily used to perform calculations on rows and columns of data?

1. Web browser
   2. Spreadsheet
   3. Image editor
   4. Presentation viewer only

Correct Answer: 2. Spreadsheet

Explanation:

Spreadsheet applications organize information into rows and columns and support calculations using formulas and functions. They are commonly used for budgets, financial models, inventories, schedules, data analysis, and charts. Image editors manipulate pictures, web browsers access web content, and presentation applications create or display slide-based content. A spreadsheet can automatically recalculate results when underlying values change, making it particularly useful for structured numerical work. Users should understand how cells, formulas, references, and worksheets relate to one another.

Question 30.

Which application is most appropriate for accessing websites and web-based applications?

1. Device driver
   2. Disk formatter
   3. BIOS utility
   4. Web browser

Correct Answer: 4. Web browser

Explanation:

A web browser is an application used to retrieve and display websites and interact with web-based services. Browsers interpret technologies such as HTML, CSS, and JavaScript and communicate with web servers using protocols such as HTTP and HTTPS. A BIOS or UEFI utility configures firmware settings, a device driver allows an operating system to communicate with hardware, and a disk formatter prepares storage media. Web browsers are essential tools for cloud applications, research, communication, and online services, so keeping them updated is important for security.

Question 31.

Which software component allows an operating system to communicate correctly with a specific hardware device?

1. Device driver
   2. Web cookie
   3. File extension
   4. Spreadsheet

Correct Answer: 1. Device driver

Explanation:

A device driver is software that allows the operating system to communicate with and control specific hardware. Drivers are commonly required for graphics adapters, printers, network interfaces, audio devices, and other peripherals. Without a correct driver, hardware may not function properly or may have limited features. Spreadsheets are productivity applications, cookies store website-related information, and file extensions indicate file types. Keeping drivers compatible and appropriately updated can resolve hardware issues, although updates should be performed with an understanding of the problem being addressed.

Question 32.

Which operating system function is responsible for managing files and folders on storage devices?

1. DNS resolution only
   2. Screen brightness only
   3. File management
   4. Keyboard layout only

Correct Answer: 3. File management

Explanation:

File management is a core operating system function that organizes files and directories on storage devices. The operating system allows users and applications to create, copy, move, rename, open, save, and delete files while enforcing permissions and storage rules. DNS resolution, keyboard layout, and display settings are also system functions but do not describe the broader process of managing files and folders. Understanding file management is essential for organizing data, performing backups, troubleshooting storage problems, and controlling access to information.

Question 33.

Which type of user account should generally be used for routine daily activities to reduce security risk?

1. Administrator account for everything
   2. Standard user account
   3. Shared root account
   4. Guest account with no password for all staff

Correct Answer: 2. Standard user account

Explanation:

A standard user account should generally be used for normal daily activities because it has fewer privileges than an administrator account. Limiting privileges reduces the damage that can result from accidental changes, malicious software, or compromised credentials. Administrative permissions should be used only when necessary for tasks such as installing certain software or changing system-wide settings. Shared highly privileged accounts also weaken accountability. This approach follows the principle of least privilege, which grants users only the access required to perform their responsibilities.

Question 34.

Which security principle gives users only the permissions necessary to complete their assigned tasks?

1. Maximum access
   2. Open sharing
   3. Anonymous administration
   4. Least privilege

Correct Answer: 4. Least privilege

Explanation:

The principle of least privilege means that users, applications, and systems receive only the permissions needed to perform authorized tasks. Limiting privileges reduces the potential impact of mistakes, malware, or compromised accounts. For example, a user who only needs to edit documents should not automatically receive unrestricted administrative access. Maximum access and open sharing create unnecessary risk. Least privilege is a fundamental security concept that applies to operating systems, file permissions, cloud resources, applications, databases, and networks.

Question 35.

Which password practice provides the strongest general security improvement?

1. Use a long, unique password for each important account
   2. Share passwords with coworkers
   3. Reuse one short password everywhere
   4. Store passwords in public notes

Correct Answer: 1. Use a long, unique password for each important account

Explanation:

Long, unique passwords reduce the risk that one compromised credential will expose multiple accounts. Password reuse is dangerous because attackers commonly test stolen credentials against other services. Sharing passwords also weakens accountability and increases the chance of unauthorized access. A reputable password manager can help generate and securely store unique credentials. Where available, multifactor authentication provides additional protection. Password security is strongest when combined with unique credentials, secure storage, phishing awareness, and prompt action when compromise is suspected.

Question 36.

Which security feature requires a user to provide more than one type of authentication evidence?

1. Disk defragmentation
   2. Screen resolution scaling
   3. Multifactor authentication
   4. File compression

Correct Answer: 3. Multifactor authentication

Explanation:

Multifactor authentication, or MFA, requires authentication factors from more than one category. Examples include something the user knows, such as a password, combined with something the user has, such as a security token or phone, or something the user is, such as a biometric characteristic. MFA provides stronger protection than a password alone because stealing one factor may not be enough to gain access. File compression, defragmentation, and display scaling are unrelated computing functions.

Question 37.

Which type of malicious software is designed to spread by attaching itself to files or programs?

1. Firewall
   2. Virus
   3. Device driver
   4. Backup utility

Correct Answer: 2. Virus

Explanation:

A computer virus is malicious code that typically attaches itself to a legitimate file or program and can spread when infected content is executed or shared. Other malware categories behave differently. A worm may spread automatically across networks, while ransomware attempts to deny access to data until a payment demand is made. Firewalls and backup utilities are defensive technologies, and legitimate device drivers support hardware. Security awareness, software updates, antimalware tools, backups, and cautious handling of unknown files help reduce malware risk.

Question 38.

Which malicious software is specifically designed to deny access to files or systems and demand payment?

1. Browser extension
   2. Firmware
   3. Spreadsheet
   4. Ransomware

Correct Answer: 4. Ransomware

Explanation:

Ransomware is malware designed to deny access to data or systems, commonly by encrypting files or locking resources, and then demanding payment. Paying does not guarantee that data will be recovered. Effective protection includes regular protected backups, software patching, secure authentication, phishing awareness, endpoint protection, and least privilege. Organizations should also maintain tested incident-response and recovery procedures so critical data and services can be restored without depending on attackers.

Question 39.

Which attack attempts to trick users into revealing credentials or sensitive information through deceptive messages or websites?

1. Phishing
   2. Virtualization
   3. File compression
   4. Defragmentation

Correct Answer: 1. Phishing

Explanation:

Phishing uses deceptive emails, text messages, websites, or other communications to trick people into revealing passwords, payment information, authentication codes, or other sensitive data. Attackers may imitate trusted companies, coworkers, or institutions and create a sense of urgency. Users should verify unexpected requests, avoid entering credentials through suspicious links, and report suspicious messages. MFA can reduce the impact of stolen passwords, although sophisticated phishing techniques may also attempt to capture temporary authentication codes.

Question 40.

A user receives an unexpected email claiming that an account will be closed immediately unless a link is clicked and login credentials are entered. What is the best response?

1. Reply with the password
   2. Forward the message to everyone
   3. Avoid the link and verify the request through a trusted official channel
   4. Click the link quickly before the deadline

Correct Answer: 3. Avoid the link and verify the request through a trusted official channel

Explanation:

Unexpected messages that create urgency and request credentials are common phishing techniques. The safest response is to avoid clicking the supplied link and independently verify the request through a trusted official website, known phone number, or established communication channel. Users should never send passwords by email or forward suspicious links to others. If the message is confirmed as malicious, it should be reported according to organizational procedures. Independent verification helps prevent attackers from controlling both the original message and the fake destination used to steal credentials.