FC0-U71 Practice Questions 1 — 50 Questions

Question 1

Which of the following is an example of a PAN (Personal Area Network) technology?

Accepted Answer

Bluetooth. Bluetooth is a short-range wireless technology designed to connect devices within a person's immediate vicinity (typically 10 meters or less), which is the defining characteristic of a Personal Area Network (PAN). It operates in the 2.4 GHz ISM band using frequency-hopping spread spectrum and is used for peripherals like headsets, keyboards, and smartphones. This makes it the textbook example of PAN technology.

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Cellular

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Wi-Fi

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Ethernet

Question 2

A home user wants to connect a desktop computer to the internet using a wireless connection. The computer does not have built-in Wi-Fi. What is the simplest and most cost-effective solution? The user has a wireless router already installed and working.

Accepted Answer

Install a wireless network adapter (USB or PCIe). A wireless network adapter (USB or PCIe) adds Wi-Fi capability to a desktop that lacks it, directly connecting to the existing wireless router. This is the simplest and most cost-effective solution because it requires no new infrastructure or cabling, and USB adapters are plug-and-play with minimal setup.

Answer

Use a powerline adapter to extend the network

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Replace the computer with a laptop that has Wi-Fi

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Run an Ethernet cable from the router to the computer

Question 3

A network administrator wants to automatically assign IP addresses to all devices on the network. Which service should be configured on the server?

Accepted Answer

DHCP. Dynamic Host Configuration Protocol (DHCP) is the correct service because it automatically assigns IP addresses, subnet masks, default gateways, and other network configuration parameters to devices on a network. This eliminates the need for manual static IP configuration and ensures each device receives a unique IP address from a defined pool, preventing address conflicts.

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DNS

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HTTP

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NAT

Question 4

A small accounting firm's wireless network currently uses WPA2-Personal with a shared passphrase that all 20 employees know. The office manager reports that a former contractor who was given the passphrase can still connect to the Wi-Fi from the parking lot. The firm wants each user to authenticate with their own unique credentials and wants to be able to revoke access for one person without disrupting everyone else. Which wireless security method should the firm implement?

Accepted Answer

WPA2-Enterprise with 802.1X authentication against a RADIUS server. The firm needs two things a shared passphrase cannot provide: distinct credentials per person and the ability to cut off one account without rekeying the whole office. WPA2-Enterprise pairs 802.1X with a RADIUS server so each login is validated individually against a directory, and disabling the contractor's account instantly blocks that person. Personal modes, MAC filtering, and WPS all rely on a network-wide secret or device identifiers rather than user identity.

Answer

MAC address filtering on the wireless access point

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Wi-Fi Protected Setup (WPS) with push-button configuration for each employee

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WPA3-Personal with Simultaneous Authentication of Equals (SAE)

Question 5

A developer is writing pseudocode for a program that calculates the average of a list of numbers. Which THREE of the following are valid components that would likely appear in the pseudocode? (Select THREE.)

Accepted Answer

Initialize sum to 0. Initializing a variable (like sum) to a starting value (0) is a fundamental step in accumulation algorithms. Without this initialization, the sum would contain an undefined or garbage value, leading to incorrect results. This is a standard practice in pseudocode and real programming languages alike.

Answer

Define a class named Calculator

Answer

Execute SQL query to retrieve numbers from database

Question 6

Drag and drop the steps to connect a Bluetooth device to a Windows 10 computer into the correct order.

Accepted Answer

Step 1: Turn on Bluetooth on the computer. Step 2: Put the Bluetooth device in pairing mode (make it discoverable). Step 3: Open Settings > Bluetooth & other devices > Add Bluetooth or other device. Step 4: Select the device from the list and confirm pairing.. Pairing a Bluetooth device requires making it discoverable and adding it via Settings.

Answer

Step 1: Put the Bluetooth device in pairing mode. Step 2: Turn on Bluetooth on the computer. Step 3: Open Settings > Bluetooth & other devices > Add Bluetooth or other device. Step 4: Select the device and confirm pairing.

Answer

Step 1: Open Settings > Bluetooth & other devices > Add Bluetooth or other device. Step 2: Turn on Bluetooth on the computer. Step 3: Put the Bluetooth device in pairing mode. Step 4: Select the device and confirm pairing.

Answer

Step 1: Turn on Bluetooth on the computer. Step 2: Open Settings > Bluetooth & other devices > Add Bluetooth or other device. Step 3: Put the Bluetooth device in pairing mode. Step 4: Select the device and confirm pairing.

Question 7

Refer to the exhibit. A developer wrote this BASIC program. What will happen if the user presses Enter without typing a name?

Accepted Answer

The program will print "Hello, " with no name.. The program shown in the exhibit likely uses a simple INPUT statement to read a name, followed by a PRINT statement that outputs 'Hello, ' and the entered value. If the user presses Enter without typing anything, the INPUT statement reads an empty string into the name variable. Consequently, the program prints 'Hello, ' with nothing after it. There is no validation to re‑prompt or check for an empty input, so no error occurs and the program does not loop.

Answer

The program will display an error message.

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The program will prompt for input again.

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The program will end with no output.

Question 8

A user runs a query on a database table and notices that the results contain duplicate rows. Which SQL keyword would eliminate these duplicates?

Accepted Answer

DISTINCT. The DISTINCT keyword in SQL is used within a SELECT statement to remove duplicate rows from the result set. When a query returns multiple identical rows, DISTINCT filters them out so that only unique combinations of column values are displayed. This directly addresses the user's requirement to eliminate duplicate rows.

Answer

GROUP BY

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WHERE

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ORDER BY

Question 9

Which of the following are advantages of using a cloud database service (DBaaS) compared to an on-premises database? (Select TWO.)

Accepted Answer

Managed maintenance and updates. DBaaS provides managed maintenance and automatic scalability without hardware management. High availability is inherent, and initial cost is lower (pay-as-you-go).

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Full control over underlying hardware

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Requires dedicated IT staff for database administration

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Higher initial capital expenditure

Question 10

Which TWO factors should be considered when choosing a software license?

Accepted Answer

Number of users. Option C (Number of users) is correct because software licenses are frequently priced and scoped per-seat, per-device, or per-concurrent-user, so the count of users directly determines which license tier or volume agreement is required. Option E (Cost) is correct because licensing cost is a primary procurement factor, encompassing the purchase price, subscription or maintenance fees, and total cost of ownership that must fit the organization's budget. The remaining options do not belong: brand name (A) is a marketing consideration rather than a licensing term, font style (B) and interface color (D) are cosmetic design attributes unrelated to license rights, restrictions, or pricing.

Answer

Brand name

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Font style

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Color of interface

Question 11

A company wants to secure its wireless network. Which of the following is the BEST practice?

Accepted Answer

Change the default administrator password. Changing the default administrator password is the best practice because default credentials are widely known and easily exploited, providing an attacker with full administrative access to the wireless access point or router. This action directly mitigates unauthorized configuration changes, which is a fundamental security measure. In contrast, the other options either weaken security or have no significant protective effect.

Answer

Broadcast the SSID

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Disable MAC filtering

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Use WEP encryption

Question 12

A university database includes a table named 'Students' and a table named 'Enrollments'. The 'Enrollments' table has a foreign key column 'StudentID' that references the 'StudentID' primary key in the 'Students' table. The university policy requires that when a student withdraws (i.e., their record is deleted from the 'Students' table), all of their associated enrollment records must be automatically removed to maintain data consistency. The database administrator wants to enforce this rule at the database level. Which referential action should be applied when creating the foreign key constraint on the 'Enrollments' table?

Accepted Answer

ON DELETE CASCADE. (ON DELETE CASCADE) is correct because it automatically deletes all child rows in the 'Enrollments' table when the corresponding parent row in the 'Students' table is deleted. This enforces the university policy of removing associated enrollment records upon student withdrawal, maintaining referential integrity at the database level without manual intervention.

Answer

ON DELETE SET NULL

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ON DELETE NO ACTION

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ON DELETE RESTRICT

Question 13

A company needs to manage and secure a fleet of employee smartphones used for work. Which technology should they implement?

Accepted Answer

MDM. Mobile Device Management (MDM) allows organizations to enforce policies, manage apps, and secure data on mobile devices.

Answer

DNS

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NAC

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VPN

Question 14

A technician is explaining the difference between volatile and non-volatile memory to a trainee. Which TWO of the following are examples of volatile memory? (Select TWO.)

Accepted Answer

DDR4 RAM. Volatile memory loses data when power is off. RAM (including DDR4 and DDR5) and cache memory (L1/L2/L3) are volatile. ROM and SSDs are non-volatile.

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ROM

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BIOS firmware

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SSD

Question 15

A user reports that the company's customer relationship management (CRM) application is slow after a recent network upgrade. What could be the cause?

Accepted Answer

The network firewall is blocking certain CRM traffic.. A network firewall can introduce latency or block traffic if its rules are misconfigured after an upgrade. If the CRM application relies on specific ports or protocols (e.g., HTTPS on TCP 443, or a proprietary port like TCP 8080), the firewall might be inspecting, throttling, or dropping packets, causing perceived slowness. This is a common post-upgrade issue when ACLs or stateful inspection rules change.

Answer

The application has too many users.

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The user's password has expired.

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The user is entering data too quickly.

Question 16

A small office has five computers connected to a switch, which is connected to a router that provides internet access. The office uses a single printer connected to one computer and shared over the network. The router has built-in DHCP and assigns IP addresses in the 192.168.0.0/24 range. Recently, the office manager added a wireless access point (WAP) to allow guests to access the internet. The WAP is connected to the switch and configured with its own DHCP server handing out addresses in the 192.168.1.0/24 range. The manager notices that some office computers are unable to access the shared printer, while others can. The computers that cannot access the printer have IP addresses in the 192.168.1.0/24 range. The printer's IP address is 192.168.0.50. What is the most likely cause of the issue?

Accepted Answer

The computers with IP addresses in the 192.168.1.0/24 range are on a different subnet than the printer.. The computers with IP addresses in the 192.168.1.0/24 range are on a different subnet than the printer, which has an IP address of 192.168.0.50. Without a router configured to route traffic between these two subnets, devices on the 192.168.1.0/24 network cannot communicate with devices on the 192.168.0.0/24 network. Since the WAP is acting as a separate DHCP server and is not routing between the subnets, the printer remains unreachable from the guest network.

Answer

The WAP's DHCP server is malfunctioning.

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The switch port for the printer is faulty.

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The printer is not powered on.

Question 17

After deploying a new version of a web application, the QA team runs a set of test cases that were previously executed on the old version to ensure that existing functionality still works correctly. This testing is performed to detect any unintended side effects of the changes. What type of testing is this?

Accepted Answer

Regression testing. Regression testing verifies that new code changes do not break existing functionality.

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Integration testing

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Smoke testing

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Acceptance testing

Question 18

A project team is in the phase where they gather business requirements, define project scope, and create a project plan. This phase occurs before any design or coding begins. Which SDLC phase is being described?

Accepted Answer

Planning. (Planning) is correct because the SDLC Planning phase is specifically where business requirements are gathered, project scope is defined, and a project plan is created before any design or coding begins. This phase establishes the high-level goals, feasibility, and resource allocation that drive all subsequent phases.

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Implementation

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Analysis

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Design

Question 19

A user needs to edit a PDF file that was received as an attachment. What type of application is required?

Accepted Answer

A PDF editor.. A PDF editor is specifically designed to modify the content, structure, and metadata of PDF files, such as adding text, images, or annotations. Unlike a viewer, a PDF editor provides the necessary tools to edit the file directly, which is required when a user needs to make changes to a received PDF attachment.

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A video player.

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A web browser.

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An image editing application.

Question 20

A user has a desktop computer with a SATA SSD and wants to upgrade to an NVMe M.2 SSD. The motherboard has an M.2 slot. What must the user verify before purchasing the NVMe drive?

Accepted Answer

The M.2 slot supports NVMe (PCIe).. NVMe M.2 drives use the PCIe interface and require a motherboard that supports NVMe via M.2 slot with PCIe lanes.

Answer

The power supply has enough wattage.

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The operating system is 64-bit.

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The SATA cable is compatible.