FC0-U71 Practice Exam 63 — 20 Questions

Question 1

A company is deciding between two software delivery models. Model X requires a formal sign-off after each phase before the next begins, while Model Y delivers working software in short iterations with continuous customer feedback. Which model is Model Y?

Choose an answer to begin — your selection is scored in the full session.

Accepted Answer

Agile. Model Y delivers working software in short iterations with continuous customer feedback, which is the defining characteristic of Agile. Waterfall and the V-Model are sequential with formal phase sign-offs, matching Model X. The Spiral model is iterative but risk-driven, not primarily feedback-driven in short cycles, so Agile is the correct identification.

Answer

Waterfall

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Spiral

Answer

V-Model

Question 2

A development team is building a web application and wants to adopt a version control system to manage code changes across multiple contributors. Which TWO of the following are primary benefits of using a version control system in this scenario? (Choose two.)

Accepted Answer

It allows multiple developers to work on different features simultaneously without overwriting each other's work.. Version control systems track file changes over time and support branching, so teams can revert to earlier states and let multiple developers work in parallel without conflicts. These capabilities directly address the need to manage code changes across contributors. Compilation, deployment, style enforcement, and code execution are handled by other tools, not by the version control system itself.

Answer

It enforces coding style rules and rejects non-compliant code automatically.

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It provides a runtime environment for executing the application code.

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It automatically compiles and deploys the application to production.

Question 3

A hospital stores patient records in a relational database. Administrators need to record that a patient can have multiple allergies, and each allergy may affect multiple patients. Which type of relationship exists between patients and allergies, and how is it implemented?

Accepted Answer

Many-to-many, implemented with a junction table containing foreign keys to both patients and allergies.. Because a patient can have several allergies and an allergy can affect several patients, the relationship is many-to-many. The standard relational solution is a junction table that holds foreign keys to both the patients and allergies tables, enabling flexible associations and preserving referential integrity without duplicating data in either primary table.

Answer

One-to-many, implemented by adding a foreign key to the allergies table.

Answer

Many-to-many, implemented by storing a comma-separated list of allergy names in the patients table.

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One-to-one, implemented by adding a foreign key to the patients table.

Question 4

A technician is comparing two internal storage devices for a workstation that must boot quickly and survive being dropped during transport. One candidate uses flash memory with no moving parts, while the other uses spinning magnetic platters. Which statement correctly describes the trade-off the technician should consider?

Accepted Answer

The flash-based device has faster access times and better shock resistance but generally costs more per gigabyte. Flash-based solid-state drives deliver faster access times and greater resistance to shock because they have no moving parts, while magnetic hard disk drives rely on spinning platters and a moving actuator arm. The trade-off is cost per gigabyte, since flash storage generally remains more expensive, so the technician must balance performance and durability against budget.

Answer

The flash-based device stores data magnetically and requires periodic defragmentation to maintain speed

Answer

The magnetic device provides lower latency than the flash-based device because platters spin continuously

Answer

The magnetic device has no moving parts and therefore uses less power under load

Question 5

A user receives a file with the extension .exe from an unknown sender. Before running it, the user wants to verify whether the file is safe. Which action best helps the user evaluate the risk?

Accepted Answer

Scan the file with updated antivirus software and check its reputation before running it.. The safest way to evaluate an unexpected executable is to scan it with updated antivirus protection and review its reputation or digital signature before running it. Opening, renaming, or forwarding the file either executes it, fails to neutralize it, or spreads the danger. Scanning and reputation checks provide evidence the user can act on.

Answer

Forward the file to coworkers so they can test it first.

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Rename the file to .txt and then run it.

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Open the file immediately to see what it does.

Question 6

A technician is asked to dispose of several old hard drives that contain sensitive company data. The technician wants to ensure that the data cannot be recovered by anyone who obtains the drives. Which of the following methods is the MOST secure?

Accepted Answer

Physically destroy the drives. The most secure way to ensure data cannot be recovered from old hard drives is to physically destroy them. Formatting or deleting files leaves data recoverable, and degaussing is not effective for all drive types. Physical destruction guarantees that the storage media and any data on it are irreversibly damaged, meeting the requirement to prevent unauthorized access.

Answer

Quick format each drive

Answer

Degauss the drives

Answer

Delete all files and empty the recycle bin

Question 7

A user is shopping for a laptop and wants to know how much data the machine can hold for documents, photos, and applications. Which specification should the user check to determine the total storage capacity of the system?

Accepted Answer

The capacity of the solid-state drive or hard disk drive. Persistent storage capacity is determined by the size of the installed drive, whether that is a solid-state drive or a hard disk drive, and is reported in gigabytes or terabytes. RAM, processor clock speed, and screen size influence performance or usability but do not define how much user data can be retained when the system is powered off.

Answer

The size of the display in inches

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The amount of RAM installed

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The clock speed of the processor

Question 8

A user asks a technician why their spreadsheet file opens much faster after being saved in a different format. The technician explains that the new format stores data in a structured, compressed way. Which of the following best describes the primary purpose of a file format?

Accepted Answer

It defines how data is encoded, stored, and interpreted by an application.. A file format defines the encoding and structure that applications use to store and retrieve data. In the scenario, the new format organizes spreadsheet data more efficiently, which explains the faster load time. The other choices describe storage capacity, universal compatibility, or encryption, none of which define what a file format fundamentally does.

Answer

It determines the maximum size of the storage drive that can hold the file.

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It guarantees that the file can be opened by any application on any operating system.

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It encrypts the file contents to prevent unauthorized access by other users.

Question 9

A student is learning to write programs and asks why a programming language uses variables. The instructor explains that a variable lets the program store a value under a name and refer to it later. Which statement best describes the role of a variable in a program?

Accepted Answer

A variable is a named location in memory that holds a value which can change during execution.. A variable is a named reference to a memory location that holds a value the program can read and modify during execution. This lets code store results, such as a running total, and reuse them later by name. Persistent disk storage, immutable constants, and loops are separate concepts, so they do not describe the role of a variable in the program.

Answer

A variable is a type of loop that repeats instructions until a condition is met.

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A variable is a fixed value that cannot be changed once the program starts.

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A variable permanently stores data on disk so it survives after the program ends.

Question 10

A user receives a text message claiming to be from a package delivery service, saying a package could not be delivered and asking the user to click a link to reschedule. The user is unsure if the message is legitimate. Which TWO of the following actions should the user take to verify the message and avoid becoming a victim? (Choose two.)

Accepted Answer

Contact the delivery service using a phone number from its official website to confirm whether the message is real.. The safest actions are to verify the message through an official channel and to report it as phishing. Clicking links, replying, or asking friends do not confirm legitimacy and may expose the user to risk. Reporting helps prevent others from falling victim.

Answer

Reply to the text message asking for more details about the package.

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Forward the message to a friend to ask if they received a similar one.

Answer

Click the link to see if the website looks official before entering any information.

Question 11

A developer is designing a program to calculate an employee's weekly pay. The program must store the hourly rate, the number of hours worked, and the computed gross pay so these values can be used and updated as the calculation proceeds. Which programming concept describes these named storage locations?

Accepted Answer

Variables. Named storage locations whose contents can change during execution are variables. The hourly rate, hours worked, and gross pay each need a place to hold a value, and gross pay must be updated after the calculation. Variables provide exactly this capability, while constants cannot change, operators perform actions rather than store data, and data types classify values rather than hold them.

Answer

Constants

Answer

Data types

Answer

Operators

Question 12

A network administrator is configuring a small office network with 20 computers. The network must be easy to troubleshoot and resilient to a single cable failure. Which topology should the administrator implement?

Accepted Answer

Star topology. A star topology uses a central switch, so a single cable failure only affects one computer, and troubleshooting is straightforward by checking individual connections. It balances resilience and simplicity for a small office. Other topologies either lack resilience to single cable failures or are overly complex and costly.

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Mesh topology

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Bus topology

Answer

Ring topology

Question 13

A junior technician is documenting the internal components of a desktop workstation for an inventory audit. The supervisor asks the technician to identify components that are installed inside the system unit and connect directly to the motherboard or its expansion slots. Which TWO of the following are internal hardware components? (Choose two.)

Accepted Answer

Random access memory module. Internal components are housed within the system unit and connect to the motherboard directly or through expansion slots. RAM modules seat in DIMM slots, and a discrete GPU card occupies a PCIe slot, so both qualify. Peripherals such as webcams, headsets, and network appliances operate externally and therefore do not belong in an inventory of internal hardware.

Answer

Network attached storage appliance

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Bluetooth headset

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External USB webcam

Question 14

A startup is choosing a data store for a product catalog where each item may have a different set of attributes, such as a camera with lens mount and sensor size versus a book with ISBN and page count. The catalog is read far more often than it is written, and the schema is expected to change frequently. Which TWO characteristics make a document-oriented NoSQL store a suitable fit? (Choose two.)

Accepted Answer

Each item can be stored as a self-contained document whose fields vary from item to item. Variable per-item attributes and frequent schema change are the two driving requirements. A document store satisfies both because each item carries its own fields and new fields can be introduced incrementally rather than through a global migration. Fixed column layouts and cross-table integrity guarantees describe relational behavior instead.

Answer

It enforces a fixed column layout that all catalog items must follow

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It guarantees strict multi-table referential integrity across all catalog records

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It requires every query to join at least three collections before returning a result

Question 15

A user needs to install a new application on a Windows 10 computer but does not have administrative privileges. The application requires writing to the Program Files directory and modifying system registry keys. What will happen when the user attempts to install the application?

Accepted Answer

The user will be prompted for administrative credentials via User Account Control.. When a standard user attempts an action that requires administrative privileges, such as writing to Program Files or modifying the registry, Windows triggers a User Account Control prompt asking for administrator credentials. If valid credentials are provided, the action proceeds with elevated rights; otherwise, it is blocked. This is the expected behavior on Windows 10.

Answer

The installation will proceed but the application will run in a limited mode.

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The application will install to the user's AppData folder automatically.

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The installation will complete but the application will be unable to launch.

Question 16

A software development team is using a version control system to manage their codebase. They want to create an isolated copy of the main codebase to develop a new feature without affecting the main line of development. Which Git operation should they use?

Accepted Answer

git branch. git branch is the correct operation because it creates a new branch, which is an isolated line of development. This allows the team to work on the feature without affecting the main branch. git commit records changes, git merge combines branches, and git clone copies a repository. Only branching provides the required isolation for feature development.

Answer

git merge

Answer

git commit

Answer

git clone

Question 17

A technician is preparing a Windows workstation for a user who needs to run a legacy line-of-business program that requires specific runtime libraries and direct access to a hardware security key. The technician must choose installation and configuration steps that support these requirements. Which TWO actions are appropriate? (Choose two.)

Accepted Answer

Install the required runtime libraries before launching the legacy application.. The legacy program requires specific runtime libraries and access to a hardware security key. Installing the runtime libraries first ensures the application can load, and installing the key's driver and middleware enables the application to communicate with the hardware. Compatibility mode, disabling User Account Control, and changing the file system do not meet those two specific requirements.

Answer

Configure the application to run in compatibility mode for an older version of Windows.

Answer

Convert the system drive to a different file system before installing the application.

Answer

Disable User Account Control for all users on the workstation.

Question 18

A developer is writing a program that reads a list of numbers and must repeatedly divide a running total by each number in the list. Some list entries may be zero. Which approach BEST prevents the program from crashing while still producing correct results for the non-zero entries?

Accepted Answer

Check each value before dividing and skip or otherwise handle entries equal to zero. Division by zero is an invalid operation that halts execution or raises an exception, so the divisor must be validated before the operation runs. Checking each value and skipping or specially handling zeros keeps the loop alive and preserves correct results for all non-zero entries. Terminating the program, converting to strings, or resetting the total all fail to meet both stated goals.

Answer

Replace the running total with zero whenever a zero appears in the list

Answer

Convert every number in the list to a string before dividing

Answer

Ignore the problem and let the program terminate when a zero is encountered

Question 19

A technician is troubleshooting a desktop computer that powers on but does not display any video. The monitor works when connected to another computer. Which TWO of the following are the most likely causes to check first? (Choose two.)

Accepted Answer

The video cable is loose or connected to the wrong port. When a computer powers on but shows no video and the monitor is known good, the first things to verify are the video cable connection and input selection, followed by internal components that can halt POST such as improperly seated RAM. Printer drivers, keyboard layout, and a switched-off surge protector do not match the symptom of powering on without display.

Answer

The printer driver is outdated

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The keyboard layout is set incorrectly

Answer

The surge protector is switched off

Question 20

A junior developer is asked to fix a bug in a program. The senior developer explains that the bug is a logic error: the program runs without crashing but produces an incorrect total. Which characteristic best distinguishes a logic error from a syntax error in this scenario?

Accepted Answer

A logic error allows the program to run but produces incorrect output, while a syntax error violates the language's grammar rules.. A syntax error violates the language's grammar and typically halts compilation or interpretation, while a logic error is grammatically valid code that runs but produces the wrong result. The scenario describes a program that runs yet gives an incorrect total, which is the hallmark of a logic error. Compilers catch syntax problems, not flawed reasoning, so automated tools alone will not flag the incorrect total.

Answer

A logic error prevents the program from compiling, while a syntax error does not.

Answer

A logic error occurs only in interpreted languages, while a syntax error occurs only in compiled languages.

Answer

A logic error can be detected automatically by the compiler, while a syntax error cannot.