FC0-U71 Practice Test 50 — 15 Questions

Question 1

Refer to the exhibit. A user reports that a recent Windows update failed to install. Which action should the technician take FIRST?

Accepted Answer

Run the Windows Update Troubleshooter. The Windows Update Troubleshooter is the correct first step because it is a built-in diagnostic tool that automatically detects and resolves common issues preventing updates from installing, such as corrupted update files, misconfigured Windows Update services, or incorrect proxy settings. Running this troubleshooter is a non-invasive, low-risk action that often resolves the problem without requiring manual intervention or system changes.

Answer

Disable the antivirus permanently

Answer

Manually download the update from Microsoft Update Catalog

Answer

Reinstall the operating system

Question 2

A small business uses a single Linux server to host a custom inventory management application written in Python. The application reads from a CSV file on the server to display current stock levels. Recently, users have reported that the inventory numbers are incorrect and sometimes the application crashes with a 'Permission denied' error when trying to save updates. The server has two user accounts: 'admin' (with sudo privileges) and 'app_user' (a standard user under which the application runs). The CSV file is located at /var/data/inventory.csv and currently has permissions -rw-rw---- and owner root:root. The application code uses the open() function to read and write the file. Which of the following actions should be taken to resolve the issue?

Accepted Answer

Change the group ownership to a group that includes 'app_user' and ensure the file has group write permission.. The application runs as 'app_user', which needs to write to /var/data/inventory.csv. The file is owned by root:root with permissions -rw-rw----, meaning only root and the root group can write. Changing the group ownership to a group that includes 'app_user' and granting group write permission (e.g., chown root:app_group /var/data/inventory.csv; chmod 664 /var/data/inventory.csv) allows the application to write without elevating privileges or exposing the file to all users.

Answer

Modify the application to run as 'admin' using sudo.

Answer

Set the file permissions to 644 so all users can read the file.

Answer

Change the file owner to 'app_user' and set permissions to 755.

Question 3

Which element of the CIA triad is primarily concerned with ensuring that data is not accessed by unauthorized individuals?

Accepted Answer

Confidentiality. Confidentiality ensures that data is accessible only to authorized users, preventing unauthorized access.

Answer

Authentication

Answer

Availability

Answer

Integrity

Question 4

Which TWO of the following are examples of social engineering attacks?

Accepted Answer

Shoulder surfing. Shoulder surfing is a social engineering attack where an attacker directly observes a user's screen or keyboard to capture sensitive information like passwords or PINs. It relies on human behavior rather than technical vulnerabilities, making it a classic example of social engineering.

Answer

DDoS

Answer

Brute force

Answer

Man-in-the-middle

Question 5

A technician is installing a new network in a home office. The devices are spaced far apart, and the technician needs to make long runs of cable. Which of the following cable types is BEST suited for this scenario to minimize signal loss?

Accepted Answer

Fiber optic cable. Fiber optic cable uses light pulses to transmit data, which is immune to electromagnetic interference and can carry signals over much longer distances (often kilometers) without significant attenuation. In a home office with long cable runs, fiber optic cable is the best choice to minimize signal loss compared to copper-based cables.

Answer

Cat5e UTP

Answer

Cat6 UTP

Answer

Coaxial cable

Question 6

An IT administrator needs to deploy a new application to 50 company-owned smartphones. The devices are managed by a central console that can enforce policies, install apps, and wipe data remotely. Which technology is being used?

Accepted Answer

Mobile Device Management (MDM). Mobile Device Management (MDM) is a solution that allows administrators to manage, secure, and enforce policies on mobile devices from a central console.

Answer

Google Account Sync

Answer

Synchronisation

Answer

iCloud

Question 7

Refer to the exhibit. A user runs the "where python" command and sees two paths. What does this indicate?

Accepted Answer

The PATH variable contains two entries for Python. The 'where python' command on Windows displays all locations in the system's PATH environment variable that contain an executable named 'python'. When two paths are shown, it indicates that the PATH variable has two separate directory entries, each pointing to a different location where a 'python.exe' (or 'python') file is found. This does not necessarily mean two different versions are installed; it simply means the PATH contains multiple entries that resolve to a Python executable.

Answer

Python is not installed

Answer

The user has two versions of Python installed

Answer

Python is installed in two locations

Question 8

A company wants to prevent unauthorized physical access to its server room. Which control is best?

Accepted Answer

Biometric lock. A biometric lock is the best control for preventing unauthorized physical access to a server room because it authenticates individuals based on unique physiological traits (e.g., fingerprint, iris scan), directly securing the physical entry point. Unlike logical or data-level controls, it addresses the physical security domain by restricting who can enter the room, not what data they can access.

Answer

Firewall

Answer

Antivirus

Answer

Encryption

Question 9

Which TWO of the following are examples of system software?

Accepted Answer

Device drivers. Device drivers are system software because they provide a low-level interface between the operating system and hardware components, translating generic OS commands into device-specific instructions. Without device drivers, the OS cannot communicate with hardware like graphics cards, network adapters, or storage controllers.

Answer

Database management system

Answer

Spreadsheet

Answer

Web browser

Question 10

Refer to the exhibit. The following SQL statement is executed. The result message is: '0 rows affected'. What is the most likely reason?

Accepted Answer

The table 'Employees' is empty. The SQL statement executed successfully (no syntax error) but affected zero rows because the target table 'Employees' is empty. An UPDATE statement modifies existing rows; if no rows exist, zero rows are affected regardless of the SET or WHERE clause. The message '0 rows affected' indicates the statement parsed and executed without error, but no data matched the condition (or there was no data to update).

Answer

The table 'Employees' does not exist

Answer

The UPDATE privilege has been revoked

Answer

The statement lacks a WHERE clause

Question 11

A company's IT department received multiple complaints from employees working on the third floor of an office building. They report that their wireless connections drop frequently and internet access is very slow. The network administrator performs a site survey and discovers that there are over 20 wireless access points (APs) in the vicinity, most operating on channels 1, 6, and 11. The company's AP is a dual-band 802.11ac device currently configured to use the 2.4 GHz band on channel 6. The administrator also notes that the company's AP is placed on a metal shelf near an elevator shaft. Which of the following actions should the administrator take to most significantly improve the wireless performance?

Accepted Answer

Change the AP to use the 5 GHz band. The 2.4 GHz band is heavily congested with over 20 APs on channels 1, 6, and 11, causing co-channel interference and frequent drops. Switching to the 5 GHz band on the dual-band 802.11ac AP provides many more non-overlapping channels (up to 23 with DFS) and significantly less interference, directly addressing the root cause of the slow and unreliable connections.

Answer

Relocate the AP away from the metal shelf and elevator

Answer

Increase the AP's transmission power

Answer

Change the AP channel to 1

Question 12

A company wants to use a cloud service where they can deploy their own applications on virtual machines without managing the underlying hardware. Which cloud service model best fits this requirement?

Accepted Answer

Infrastructure as a Service (IaaS). IaaS (Infrastructure as a Service) provides virtualized computing resources. The customer manages OS and apps, while the provider manages the hardware.

Answer

Software as a Service (SaaS)

Answer

Function as a Service (FaaS)

Answer

Platform as a Service (PaaS)

Question 13

A network technician needs to perform a bitwise AND operation on two binary numbers: 10110110 and 11001101. What is the result in decimal?

Accepted Answer

132. Perform AND bitwise: 10110110 AND 11001101 = 10000100 (binary) = 132 decimal.

Answer

172

Answer

196

Answer

128

Question 14

Which TWO are characteristics of a network switch? (Select exactly two.)

Accepted Answer

Operates at Layer 2 of the OSI model. A network switch operates at Layer 2 (Data Link Layer) of the OSI model, where it uses MAC addresses to make forwarding decisions. Unlike hubs, switches learn and store MAC addresses in a Content Addressable Memory (CAM) table, allowing them to forward frames only to the specific port associated with the destination MAC address, which reduces collision domains and improves network efficiency.

Answer

Operates at Layer 3

Answer

Connects different networks

Answer

Forwards data based on IP addresses

Question 15

Which of the following is an example of a lossy compression format?

Accepted Answer

JPEG. JPEG is a lossy image compression format that discards some data to reduce file size.

Answer

GIF

Answer

PNG

Answer

ZIP