FC0-U71 Practice Test 46 — 15 Questions

Question 1

A software engineer is debugging a program and needs to identify potential issues. Which THREE tools or techniques are commonly used in debugging? (Select THREE.)

Accepted Answer

Log files. Log files (B) are correct because they record runtime events, errors, and warnings that help engineers trace the sequence of actions leading to a defect. Breakpoints (C) are correct because they let a debugger pause program execution at a specific line or condition, allowing the engineer to inspect variables, call stack, and memory state at that moment. Step-through execution (E) is correct because it lets the engineer execute code line by line (step over, step into, step out) to observe how state changes and pinpoint where behavior diverges from expectations. A compiler (A) only translates source code into machine code or bytecode and reports syntax/type errors, but it does not provide runtime debugging capabilities. A source code editor (D) is merely a tool for writing and editing code and, while often integrated with debuggers, is not itself a debugging technique.

Answer

Compiler

Answer

Source code editor

Question 2

A user needs to run a Windows application on a Mac. Which approach uses a hypervisor to create a separate environment?

Accepted Answer

Virtual machine. A virtual machine uses a hypervisor (Type 1 or Type 2) to create a separate, isolated environment that emulates hardware, allowing a Windows guest OS to run on a Mac host. This is the only option that explicitly involves a hypervisor, as stated in the question. Boot Camp, by contrast, is a dual-boot solution that does not use a hypervisor.

Answer

Boot Camp

Answer

Driver update

Answer

Compatibility mode

Question 3

A small business wants to set up a wireless network. Which of the following is the BEST security method to use?

Accepted Answer

WPA2. WPA2 (Wi-Fi Protected Access 2) is the best security method among the options because it uses AES (Advanced Encryption Standard) with CCMP (Counter Mode CBC-MAC Protocol), providing strong encryption and integrity protection. WEP is outdated and easily cracked, while MAC filtering and disabling SSID broadcast are not encryption methods and offer minimal security against determined attackers.

Answer

WEP

Answer

MAC address filtering

Answer

Disable SSID broadcast

Question 4

What is the decimal equivalent of the binary number 1101?

Accepted Answer

13. The binary number 1101 has four bits: the leftmost bit is the 8's place (2^3), then 4's (2^2), 2's (2^1), and 1's (2^0). Adding the values where bits are 1: 8 + 4 + 0 + 1 = 13. Therefore, the decimal equivalent is 13.

Answer

15

Answer

10

Answer

12

Question 5

A company is deploying mobile devices for its sales team. The devices need to access corporate email and calendars securely. Which THREE features are most important for managing these devices centrally?

Accepted Answer

Remote wipe capability. Option B (Remote wipe capability) is correct because if a sales device is lost or stolen, IT can erase corporate email, calendars, and cached credentials remotely, preventing data leakage of sensitive business communications. Option D (GPS tracking) is correct because location tracking lets administrators locate lost or stolen devices and enforce geofencing or location-based compliance policies for devices holding corporate data. Option E (Mobile Device Management (MDM) software) is correct because MDM is the central platform that enforces email/calendar access policies, configures Exchange ActiveSync or modern auth profiles, applies encryption and passcode requirements, and orchestrates remote wipe and GPS functions across the fleet. Option A (NFC for mobile payments) is not required for secure corporate email and calendar access, and option C (high-resolution camera) is a consumer hardware feature unrelated to centralized device management or data security.

Answer

NFC for mobile payments

Answer

High-resolution camera

Question 6

A team of developers is working on a large project with multiple features. They use a version control system. One developer creates a new branch to develop a feature, while other developers continue working on the main branch. After completing the feature, the developer wants to combine the changes from the feature branch back into the main branch. What version control operation should be performed?

Accepted Answer

Merge. The correct operation is 'Merge' (D), which combines the changes from the feature branch into the main branch. In Git, merging integrates the commit history of two branches, preserving the feature's work while incorporating it into the target branch. This is the standard workflow for bringing a completed feature back into the main line of development.

Answer

Pull request

Answer

Fork

Answer

Commit

Question 7

A user attempts to run a legacy application and receives the error message shown in the exhibit. What is the most likely cause of this error?

Accepted Answer

The required Microsoft Visual C++ redistributable package is not installed.. The error message typically indicates that the application requires a specific version of the Microsoft Visual C++ Redistributable package, which provides essential runtime libraries (e.g., MSVCR100.dll, MSVCR120.dll) that legacy applications depend on. Without these libraries, the application cannot load critical components and fails with a system-level error, such as 'The program can't start because MSVCR*.dll is missing'.

Answer

The application is not installed correctly.

Answer

The user does not have permission to run the application.

Answer

Antivirus software has quarantined the application file.

Question 8

A support technician is explaining file compression to a user. Which THREE of the following are examples of lossless compression formats? (Select THREE).

Accepted Answer

FLAC. FLAC (B) is correct because it is a lossless audio codec that compresses PCM audio without discarding any samples, allowing bit-perfect reconstruction of the original waveform. PNG (D) is correct because it is a lossless image format that uses DEFLATE compression and preserves all pixel data exactly, which is why it suits graphics and screenshots. ZIP (E) is correct because it is a lossless archive format that uses DEFLATE (or similar) to compress files while preserving their exact original bytes upon extraction. MP3 (A) is not correct because it is a lossy audio format that removes perceptually less important frequency components, so the original data cannot be fully recovered. JPEG (C) is not correct because it is a lossy image format that discards high-frequency detail through DCT quantization, meaning decompression yields an approximation rather than the exact original.

Answer

MP3

Answer

JPEG

Question 9

In a relational database, a foreign key in the 'Enrollments' table references the primary key of the 'Students' table. What does this relationship primarily enforce?

Accepted Answer

Referential integrity. Foreign keys enforce referential integrity, ensuring that values in the foreign key column match a primary key value in the referenced table.

Answer

Entity integrity

Answer

Normalization

Answer

Domain integrity

Question 10

A help desk technician receives an alert from the security monitoring system showing multiple events like the one in the exhibit. The technician is investigating a possible brute-force attack. Based on the exhibit, which of the following is the primary attack vector being used?

Accepted Answer

RDP brute-force attack. The exhibit shows repeated failed authentication attempts targeting TCP port 3389, which is the default port for Remote Desktop Protocol (RDP). A brute-force attack on RDP involves systematically trying many username/password combinations to gain unauthorized remote access to a Windows system. This matches the definition of an RDP brute-force attack.

Answer

VPN brute-force attack

Answer

SSH brute-force attack

Answer

Web application attack

Question 11

Which of the following is a benefit of using a database instead of a flat file?

Accepted Answer

Support for concurrent multi-user access. Databases provide concurrent access control, allowing multiple users to read/write data simultaneously without corruption.

Answer

Simpler setup and configuration

Answer

Faster file transfer speeds

Answer

Lower storage requirements

Question 12

An IT specialist is explaining ASCII and Unicode to a trainee. Which statement accurately describes a difference between ASCII and Unicode?

Accepted Answer

Unicode can represent characters from multiple languages, while ASCII is limited to English.. Unicode is designed to represent characters from virtually all writing systems, including non-Latin scripts, emojis, and symbols, whereas ASCII is limited to 128 (or 256 in extended versions) characters primarily for English and Western European languages. This is the fundamental difference in character repertoire. The other options contain factual errors about bit widths and encoding schemes.

Answer

ASCII uses 8 bits per character and supports 256 characters.

Answer

Unicode uses 16 bits per character, while ASCII uses 7 bits.

Answer

ASCII is a variable-width encoding, while Unicode uses a fixed width.

Question 13

A company wants to run a Linux virtual machine on a Windows host without dual-booting. Which type of software is needed to create and manage the virtual machine?

Accepted Answer

A hypervisor. A hypervisor is the software layer that creates, runs, and manages virtual machines by abstracting CPU, memory, storage, and network resources from the physical host. Running a Linux VM on a Windows host without dual-booting is the textbook use case for a hypervisor such as VirtualBox, VMware Workstation, or Hyper-V. This directly matches the requirement.

Answer

A compiler

Answer

A device driver

Answer

An emulator

Question 14

A student is converting the hexadecimal number 2F to decimal. What is the correct decimal value?

Accepted Answer

47. Hexadecimal is base-16, so each digit represents a power of 16. For 2F, the '2' is in the 16s place (2 × 16 = 32) and 'F' represents 15 in the 1s place (15 × 1 = 15). Adding these gives 32 + 15 = 47, which is the correct decimal equivalent.

Answer

59

Answer

32

Answer

63

Question 15

Which THREE of the following are best practices for database security?

Accepted Answer

Use strong, complex passwords. Option A is correct because strong, complex passwords reduce the risk of brute-force, credential-stuffing, and dictionary attacks against database accounts, especially for privileged logins. Option D is correct because encrypting sensitive data at rest (e.g., using Transparent Data Encryption, TDE, or column-level encryption) protects confidentiality if storage media, backups, or data files are stolen or improperly accessed. Option E is correct because least privilege access ensures users and applications receive only the permissions required for their role, limiting the blast radius of compromised accounts or insider misuse. Option B is wrong because granting all privileges to all users violates least privilege and massively expands the attack surface. Option C is wrong because disabling audit logs destroys accountability and forensic evidence, and storage savings do not justify losing security monitoring.

Answer

Grant all database privileges to all users

Answer

Disable audit logs to save storage