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

 

Question 301.

Which type of network connection normally provides the lowest latency and most consistent performance for a stationary desktop computer?

1. Wired Ethernet
   2. Bluetooth
   3. NFC
   4. Cellular hotspot

Correct Answer: 1. Wired Ethernet

Explanation:

Wired Ethernet generally provides stable performance, low latency, and strong resistance to the kinds of interference and signal variation that can affect wireless connections. Bluetooth and NFC are intended for shorter-range communication and are not designed as primary high-performance LAN connections. Cellular hotspots can provide internet access but may have higher latency and variable performance. Ethernet is commonly preferred for desktops, servers, gaming systems, and other devices where consistent network performance is important.

Question 302.

Which wireless technology is most appropriate for connecting a wireless mouse to a nearby laptop?

1. NFC
   2. Bluetooth
   3. Cellular
   4. GPS

Correct Answer: 2. Bluetooth

Explanation:

Bluetooth is designed for short-range wireless communication between devices such as mice, keyboards, headphones, speakers, and smartphones. It consumes relatively little power and is widely supported by laptops and mobile devices. NFC operates over a much shorter distance and is commonly used for contactless interactions. Cellular provides wide-area network access, while GPS is used for positioning rather than peripheral connectivity.

Question 303.

Which wireless technology is commonly used for local network access through an access point?

1. NFC
   2. GPS
   3. Wi-Fi
   4. SATA

Correct Answer: 3. Wi-Fi

Explanation:

Wi-Fi is commonly used to connect computers, smartphones, tablets, and other devices to a local area network through a wireless access point. It can provide access to local resources and the internet. NFC and GPS serve different functions, while SATA is a storage interface. Wi-Fi performance depends on signal strength, interference, network congestion, access-point placement, and device capabilities.

Question 304.

Which technology is most appropriate for very short-range contactless payment transactions?

1. Ethernet
   2. SATA
   3. VGA
   4. NFC**

Correct Answer: 4. NFC

Explanation:

NFC, or Near Field Communication, is designed for very short-range communication and is widely used for contactless payments, access badges, device pairing, and information exchange. Ethernet and SATA are wired technologies, while VGA is a display interface. NFC’s short operating distance helps make it convenient for intentional tap-based interactions, although secure application design is still necessary.

Question 305.

Which wireless technology is designed primarily for positioning and navigation?

1. GPS
   2. Bluetooth
   3. Wi-Fi
   4. USB

Correct Answer: 1. GPS

Explanation:

GPS uses signals from satellites to determine geographic position. Smartphones, vehicles, navigation devices, and many other systems use GPS for mapping, tracking, and location-based services. Bluetooth and Wi-Fi are communication technologies, while USB is a wired peripheral interface. GPS accuracy can vary depending on satellite visibility, environmental conditions, and device hardware.

Question 306.

Which mobile connection type allows a smartphone to access the internet through a carrier’s wide-area network?

1. SATA
   2. Cellular
   3. HDMI
   4. PS/2

Correct Answer: 2. Cellular

Explanation:

Cellular connectivity allows smartphones and other mobile devices to access voice and data services through a mobile carrier’s network. Unlike Wi-Fi, which usually depends on a nearby local access point, cellular networks provide coverage across much larger geographic areas. SATA, HDMI, and PS/2 are wired hardware interfaces. Cellular performance depends on signal strength, carrier coverage, congestion, and the specific network technology in use.

Question 307.

Which mobile feature allows a device to share its cellular data connection with nearby Wi-Fi clients?

1. Airplane mode
   2. Screen casting
   3. Mobile hotspot
   4. GPS lock

Correct Answer: 3. Mobile hotspot

Explanation:

A mobile hotspot allows a smartphone or dedicated device to share its cellular internet connection with other nearby devices, commonly over Wi-Fi. This is useful when regular Wi-Fi is unavailable. Hotspot use can consume significant battery power and mobile data. Airplane mode disables wireless radios, screen casting sends display content to another device, and GPS is used for location.

Question 308.

Which mobile-device feature can automatically change display orientation between portrait and landscape?

1. SSD
   2. NFC
   3. SIM card
   4. Accelerometer**

Correct Answer: 4. Accelerometer

Explanation:

An accelerometer detects changes in motion and orientation. Mobile operating systems use this information to determine whether a device is being held vertically or horizontally and can automatically rotate the display. Devices may also include gyroscopes, magnetometers, proximity sensors, and other sensors. SSDs, NFC, and SIM cards serve unrelated functions.

Question 309.

Which mobile security feature can require biometric verification before unlocking the device?

1. Fingerprint reader
   2. Bluetooth pairing
   3. Screen brightness control
   4. Airplane mode

Correct Answer: 1. Fingerprint reader

Explanation:

A fingerprint reader provides biometric authentication based on a physical characteristic of the user. It can be used to unlock a mobile device, authorize payments, or confirm access to applications. Bluetooth pairing and airplane mode do not authenticate the user, while screen brightness is only a display setting. Biometrics are often combined with a PIN or password as part of a broader device-security strategy.

Question 310.

Which action should be taken if a mobile device containing sensitive company data is lost?

1. Wait several days before reporting it
   2. Use remote lock or wipe capabilities if available
   3. Disable backups permanently
   4. Share the account password publicly

Correct Answer: 2. Use remote lock or wipe capabilities if available

Explanation:

Remote lock and wipe features can help protect sensitive data on a lost device. Administrators or users may be able to lock the device, display recovery information, locate it, or erase stored data. The loss should also be reported promptly according to organizational procedures. Delaying the response increases risk. Device encryption, strong authentication, and mobile-device management can further reduce the impact of theft or loss.

Question 311.

Which operating system feature allows software to run with different levels of access depending on the user’s permissions?

1. File compression
   2. Display scaling
   3. User account permissions
   4. Disk defragmentation

Correct Answer: 3. User account permissions

Explanation:

User account permissions determine what actions a user or application can perform. Standard users typically have fewer privileges than administrators, helping limit accidental or malicious system changes. File compression and display scaling are unrelated, while defragmentation reorganizes data on certain storage devices. Proper permissions support least privilege and improve system security.

Question 312.

Which operating system function is used to monitor running applications and processes?

1. File Explorer only
   2. Disk formatter
   3. Print spooler
   4. Task manager or process monitor**

Correct Answer: 4. Task manager or process monitor

Explanation:

Task-management or process-monitoring utilities display running applications, background processes, and resource usage such as CPU, memory, storage, and network activity. They are useful for identifying programs that are frozen or consuming excessive resources. File browsers, disk formatters, and print services perform different tasks. Process-monitoring tools are often useful during troubleshooting of slow or unresponsive systems.

Question 313.

Which file-system permission allows a user to view the contents of a file without changing it?

1. Read
   2. Write
   3. Execute only
   4. Delete only

Correct Answer: 1. Read

Explanation:

Read permission allows a user or process to view the contents of a file. Write permission allows modification, while execute permission allows a program or script to run where supported. Real operating systems may use more detailed permission models, but read, write, and execute are fundamental concepts. Permissions should be assigned according to least privilege so users receive only the access needed for their tasks.

Question 314.

Which file-system permission is required to modify the contents of a file?

1. Read only
   2. Write
   3. Execute only
   4. View metadata only

Correct Answer: 2. Write

Explanation:

Write permission allows a user or process to change the contents of a file. Depending on the operating system and directory permissions, it may also support creating or replacing files. Read permission allows viewing, while execute permission permits code execution. Proper write permissions are important because excessive access can allow accidental changes, malware damage, or unauthorized modification of sensitive information.

Question 315.

Which operating system feature allows a computer to use storage space as an extension of physical RAM?

1. RAID
   2. BIOS cache
   3. Virtual memory
   4. Disk encryption

Correct Answer: 3. Virtual memory

Explanation:

Virtual memory uses part of a storage device to supplement physical RAM when memory demand is high. This allows the operating system to continue running more applications than could fit entirely in RAM, although storage is much slower than physical memory. Excessive reliance on virtual memory can therefore reduce performance. RAID and encryption serve different storage purposes, while BIOS cache is not the relevant concept.

Question 316.

Which maintenance task removes unnecessary temporary files to free storage space?

1. Disk encryption
   2. Firmware flashing only
   3. RAID rebuilding
   4. Disk cleanup**

Correct Answer: 4. Disk cleanup

Explanation:

Disk cleanup utilities remove temporary files, cached data, old installation files, and other unnecessary information to reclaim storage space. Users should review what will be deleted before proceeding, particularly on systems containing important files. Encryption protects confidentiality, firmware flashing updates low-level software, and RAID rebuilding repairs or reconstructs arrays. Cleanup can improve storage availability but is not a replacement for capacity planning or backups.

Question 317.

Which type of software update is typically released to correct a known security vulnerability?

1. Security patch
   2. Wallpaper update
   3. Shortcut update
   4. Screen calibration

Correct Answer: 1. Security patch

Explanation:

A security patch corrects a known vulnerability in software or firmware. Applying patches in a timely manner reduces exposure to attacks that exploit publicly known weaknesses. Organizations may test critical updates before wide deployment to reduce compatibility risk. Wallpaper and shortcut changes do not address vulnerabilities. Unsupported software that no longer receives security patches can create significant long-term risk.

Question 318.

Which troubleshooting step should occur after implementing a solution?

1. Immediately close the case without testing
   2. Verify full system functionality
   3. Replace unrelated components
   4. Delete all diagnostic information

Correct Answer: 2. Verify full system functionality

Explanation:

After a solution is implemented, the technician should verify that the original problem has been resolved and that the system functions normally. Testing should also confirm that the change did not introduce new issues. Preventive measures can then be applied when appropriate, followed by documentation of the problem and solution. Verification is essential because a change that appears successful at first may not fully resolve the root cause.

Question 319.

Which troubleshooting action is most appropriate when a user reports that an application frequently freezes?

1. Replace the monitor immediately
   2. Delete all user data
   3. Reproduce the issue and check resource usage, logs, and recent changes
   4. Disable all security controls

Correct Answer: 3. Reproduce the issue and check resource usage, logs, and recent changes

Explanation:

A structured troubleshooting approach begins by gathering evidence and attempting to reproduce the problem. The technician should review resource usage, error logs, software updates, recently installed applications, and other relevant changes. Replacing unrelated hardware or disabling security without evidence can create new problems. Identifying patterns helps establish a probable cause before corrective action is taken.

Question 320.

A computer has become extremely slow because the system drive is almost completely full. What is the best initial corrective action?

1. Replace the keyboard
   2. Change the monitor resolution
   3. Disable networking
   4. Free storage space by removing or moving unnecessary data**

Correct Answer: 4. Free storage space by removing or moving unnecessary data

Explanation:

A nearly full system drive can reduce operating-system performance and prevent applications, updates, temporary files, or virtual memory from functioning normally. The user should safely remove unnecessary files, uninstall unused applications, or move appropriate data to other storage. Important files should be backed up before major cleanup. Replacing unrelated peripherals or disabling networking would not address the storage-capacity problem.