FC0-U71 Practice Exam 61 — 20 Questions

Question 1

A technician is setting up a new laptop for a traveling salesperson. The laptop must have a built-in cellular modem so the user can access the internet without relying on Wi-Fi hotspots or tethering to a phone. Which internal expansion slot is specifically designed to accept a cellular modem module in a modern laptop?

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

Accepted Answer

M.2 slot. A cellular modem module in a laptop connects through an M.2 slot keyed for WWAN, typically using PCIe or USB lanes. This slot is designed for the small 3042/3052 module form factor and works with the pre-installed antenna cables found in business laptops. Other listed slots serve memory, storage, or desktop expansion roles and cannot accept or electrically support a WWAN module.

Answer

SO-DIMM slot

Answer

SATA data connector

Answer

PCIe x16 slot

Question 2

A developer is designing a program that stores a customer's mailing address, which consists of a street, city, state, and postal code. The developer wants to keep these related values grouped together and access them by name rather than by numeric position. Which data structure is the best fit?

Accepted Answer

A record or struct with named fields. Grouping related values and accessing them by name is the defining purpose of a record or struct. It keeps the address components together as one logical unit while letting code refer to each part through a descriptive field name. Arrays use positional indexes, a single string loses structure, and Booleans cannot hold text, so a record or struct is the appropriate structure.

Answer

An array of four strings

Answer

A single string containing all four values

Answer

A Boolean flag for each address component

Question 3

A user asks a technician why their computer can run multiple applications at once, such as a web browser, email client, and word processor, without them interfering with each other. Which of the following concepts should the technician use to explain this?

Accepted Answer

Multitasking. Multitasking is the operating system feature that allows multiple applications to run concurrently by sharing CPU time. It creates the illusion of simultaneous execution, enabling a user to switch between a browser, email client, and word processor. The other options refer to different concepts such as virtual machines, multiple CPUs, or CPU instruction optimization, which do not directly describe running multiple applications in one OS session.

Answer

Virtualization

Answer

Pipelining

Answer

Multiprocessing

Question 4

A developer writes a function that calculates the average of a list of numbers. The function works correctly when the list contains values, but crashes when the list is empty. Which programming concept should the developer apply to handle the empty list case gracefully?

Accepted Answer

Exception handling. The function fails at runtime when the list is empty, likely due to division by zero. Exception handling lets the developer catch that error and define a graceful response, such as returning a default value or message. Recursion, inheritance, and polymorphism are unrelated to runtime error management and would not prevent the crash.

Answer

Inheritance

Answer

Polymorphism

Answer

Recursion

Question 5

A user complains that their laptop's built-in display is very dim and difficult to read, even when the brightness is set to maximum. The laptop is five years old and has never had any hardware replaced. Which component is most likely failing?

Accepted Answer

Backlight. The backlight is responsible for illuminating the LCD panel. In an aging laptop, the backlight can lose brightness over time, resulting in a dim display even at maximum brightness. The other components would produce different symptoms, such as no backlight, touch issues, or image distortion. Therefore, the backlight is the most likely failing component.

Answer

Digitizer

Answer

Inverter

Answer

Video card

Question 6

A technician is setting up a brand-new all-in-one desktop for a home user. The user wants to connect to the internet using the existing home router without running any cables. Which built-in capability should the technician verify is working?

Accepted Answer

Wi-Fi adapter. The user wants internet access without cables, so the desktop must have a working Wi-Fi adapter to connect to the home router wirelessly. Ethernet would require a cable, while Bluetooth and an optical drive do not provide network access at all. Only Wi-Fi meets the stated need.

Answer

Ethernet port

Answer

Optical drive

Answer

Bluetooth adapter

Question 7

A developer writes a function that opens a file, reads its contents, and then returns the data. If the file does not exist, the program should display a friendly message instead of terminating abruptly. Which approach best handles this situation?

Accepted Answer

Wrap the file read in a try-catch block and handle the file-not-found exception. When an operation can fail for a predictable reason such as a missing file, structured exception handling allows the program to recover gracefully. The try block contains the risky read, and the catch block intercepts the specific error and presents a friendly message. Comments, constants, and unbounded retries do not intercept the failure, so they cannot prevent the abrupt termination.

Answer

Add comments describing what should happen if the file is missing

Answer

Use a loop to retry the file read indefinitely until it succeeds

Answer

Declare the file path as a constant at the top of the program

Question 8

A database administrator is designing a new table to store employee records. The administrator wants to ensure that no two employees can have the same employee identification number, and that the employee identification number cannot be left empty. Which constraint should be applied to the EmployeeID column to meet both requirements?

Accepted Answer

PRIMARY KEY. The PRIMARY KEY constraint uniquely identifies each row and enforces both uniqueness and non-null values. This meets the need to prevent duplicate employee identification numbers and to disallow empty values. UNIQUE allows nulls, FOREIGN KEY enforces referential integrity, and CHECK validates conditions but does not enforce uniqueness across rows.

Answer

CHECK

Answer

UNIQUE

Answer

FOREIGN KEY

Question 9

A technician is explaining how data is represented and processed in a computer. Which TWO of the following statements accurately describe the relationship between bits, bytes, and storage capacities? (Choose two.)

Accepted Answer

A nibble is half a byte and can represent 16 different values.. A byte is 8 bits and can represent 256 values, and a nibble is 4 bits with 16 possible values. These two statements accurately describe standard data units. The other statements contain common misconceptions about decimal versus binary prefixes, unit order, and the nature of a bit. The technician should use these correct relationships to explain data representation.

Answer

A kilobyte (KB) is always equal to 1,000 bytes in all contexts.

Answer

A megabyte (MB) is larger than a gigabyte (GB).

Answer

A bit can store more than two states, allowing it to represent multiple characters.

Question 10

A junior developer writes a program that stores a customer's age in a variable. The program must later perform arithmetic, such as adding five years to that age. Which data type is MOST appropriate for this variable?

Accepted Answer

Integer. The variable must hold a whole-number age and support arithmetic such as adding five years. An integer satisfies both requirements directly, providing numeric storage and calculation. A Boolean cannot represent numbers, a string treats the value as text and concatenates instead of adding, and an array is meant for collections rather than a single scalar value.

Answer

Boolean

Answer

Array

Answer

String

Question 11

A small business wants employees to use a cloud-based office suite so that multiple people can edit the same document at the same time and see each other's changes immediately. Which characteristic of the cloud-based suite makes this possible?

Accepted Answer

The suite stores documents on a central server and supports real-time co-authoring.. Real-time collaboration in a cloud-based office suite depends on central document storage plus continuous synchronization between participants. That combination lets several employees edit one shared document and see each other's changes as they happen. Local installation, email handoffs, and manual saving do not provide that simultaneous shared editing experience.

Answer

The suite is installed locally on each employee's computer.

Answer

The suite saves the document only when the user manually clicks Save.

Answer

The suite requires each employee to email the document to the next editor.

Question 12

A developer needs to store several related values for one record, such as a product's name, price, and quantity, and pass them around as a single unit. The values have different data types. Which data structure is MOST appropriate?

Accepted Answer

A record or struct with named fields. The product record combines a text name, a numeric price, and a numeric quantity that belong together. A record or struct with named fields stores these related, differently typed values as one unit and keeps each field's type intact. A delimited string loses typing, a Boolean is too limited, and an integer array cannot hold the text name or provide meaningful field names.

Answer

An array of integers

Answer

A single string containing all values separated by commas

Answer

A Boolean flag

Question 13

A technician is setting up a new wireless router for a home office. The user wants to ensure that devices can connect using the latest standard for better speed and reduced interference. Which wireless standard should the technician configure the router to use?

Accepted Answer

802.11ax. 802.11ax, or Wi-Fi 6, is the latest mainstream wireless standard, offering improved speed, efficiency, and reduced interference compared to older standards. It is designed for environments with many devices and provides better performance. Configuring the router to use 802.11ax ensures the home office benefits from current wireless technology.

Answer

802.11n

Answer

802.11g

Answer

802.11ac

Question 14

A user is setting up a new wireless router for a home office and wants to secure the wireless network. Which TWO of the following should the user configure to help prevent unauthorized access? (Choose two.)

Accepted Answer

Change the default administrator password. To secure a home wireless network, the user should enable strong encryption such as WPA3 and change the router's default administrator password. WPA3 protects data in transit and controls who can join, while changing the default admin password prevents unauthorized reconfiguration. The other options either provide minimal protection, are unrelated to security, or can increase exposure.

Answer

Enable DHCP on the router

Answer

Disable SSID broadcast

Answer

Place the router near a window

Question 15

A home user reports that a web page loads slowly and intermittently fails to open, but other users on the same network reach the same site without trouble, and the site is reachable from a mobile phone on cellular data. The technician suspects the browser is holding outdated cached data for that site. Which action should the technician take first?

Accepted Answer

Clear the browser cache and cookies. The symptom is isolated to one browser on one machine while other devices reach the same site, which points to locally stored browser data rather than network hardware, the shared internet link, or DNS. Clearing the cache and cookies forces a fresh fetch from the server and directly resolves stale or corrupt cached content.

Answer

Change the DNS server addresses on the router

Answer

Reboot the internet service provider modem

Answer

Replace the network interface card

Question 16

A database administrator is designing a table to store employee records. She needs to ensure that no two employees can have the same employee number, and that the employee number is never left blank. Which combination of constraints should she apply to the employee number column?

Accepted Answer

UNIQUE and NOT NULL. To require that every employee has a unique employee number, the column needs both a uniqueness rule and a non-null rule. UNIQUE prevents duplicates, and NOT NULL prevents blanks. A primary key would also work, but the question asks for a combination of constraints; UNIQUE and NOT NULL are the specific constraints that meet both conditions.

Answer

INDEX and AUTO_INCREMENT

Answer

PRIMARY KEY and FOREIGN KEY

Answer

CHECK and DEFAULT

Question 17

A user reports that their desktop computer takes a long time to start up and frequently freezes. A technician suspects the storage drive is failing. Which of the following steps should the technician take FIRST to diagnose the issue?

Accepted Answer

Run the manufacturer's diagnostic utility to check the drive's health.. Running the manufacturer's diagnostic utility is the correct first step because it directly tests the suspected failing component without making changes. It provides actionable data about the drive's health, allowing the technician to make an informed decision. Other options either skip diagnosis or address different components, which could lead to unnecessary work.

Answer

Replace the hard drive with a solid-state drive.

Answer

Check the computer's RAM usage in Task Manager.

Answer

Reinstall the operating system.

Question 18

A user is selecting a software license for a new application. The user wants to use the software for any purpose, modify it, and redistribute modified versions, but also wants to ensure that any redistributed modified versions remain under the same license. Which type of license best fits these requirements?

Accepted Answer

Copyleft license such as GNU GPL. The user wants freedom to use, modify, and redistribute, plus a requirement that modified versions stay under the same license. That reciprocal condition is the defining feature of a copyleft license such as the GNU GPL. Permissive licenses and public domain allow modification and redistribution but do not enforce the same-license requirement, while proprietary licenses forbid these freedoms altogether.

Answer

Public domain dedication

Answer

Permissive open-source license such as MIT

Answer

Proprietary license

Question 19

A technician is reviewing how a computer processes a single machine instruction. The instruction cycle begins when the CPU fetches an instruction from memory whose address is held in a specific register. The technician must identify the register that stores the memory address of the next instruction to be executed. Which of the following is that register?

Accepted Answer

Program counter. The program counter stores the address of the next instruction to be fetched, making it the register that drives sequential execution. Each cycle, its value is used to access memory, then advanced or redirected by branches. Other registers such as the accumulator, memory address register, and instruction register serve different roles in processing data or the current instruction.

Answer

Memory address register

Answer

Instruction register

Answer

Accumulator

Question 20

A small design studio needs a central device so five wired workstations and two networked printers can exchange data with each other on the same local network. The studio does not need any routing between separate networks. Which device is the best choice?

Accepted Answer

A switch. A switch is the appropriate central device for a single local network with multiple wired endpoints. It forwards frames between connected devices and provides enough ports for the workstations and printers. A router, firewall, or access point does not fulfill the role of aggregating several wired devices on one segment.

Answer

A wireless access point

Answer

A router

Answer

A firewall