FC0-U71 Practice Test 18 — 15 Questions

Question 1

Which TWO of the following are characteristics of a client-server network?

Accepted Answer

Resources are shared from servers. In a client-server network, resources such as files, printers, and applications are hosted and shared from dedicated servers, which is exactly what option B describes, so B is correct. Option C is also correct because client-server architectures centralize administration—user accounts, security policies, and data are managed on the servers rather than on each individual workstation. Options A and D describe peer-to-peer networking, where no dedicated server is required and all devices act as equals, so they do not fit the client-server model. Option E is also a peer-to-peer trait, since small offices with few computers typically avoid the cost and complexity of dedicated servers.

Answer

No dedicated server required

Answer

All devices are equal

Answer

Typically used in small offices with few computers

Question 2

A developer is debugging a script that calculates the average of a list of numbers. The output is always incorrect. Which type of error is most likely the cause?

Accepted Answer

Logic error. A logic error occurs when the code runs without crashing but produces incorrect results due to a flaw in the algorithm or calculations. In this case, the script calculates the average incorrectly, such as dividing by the wrong count or summing incorrectly, which is a classic logic error.

Answer

Runtime error

Answer

Syntax error

Answer

Compile error

Question 3

A user installed a new photo editing application. After opening it, the user receives an error that the application cannot find a required DLL file. Which of the following is the MOST likely cause?

Accepted Answer

The application did not install all necessary components.. A DLL (Dynamic Link Library) file is a shared code library that applications call at runtime. If the application installer did not copy all required DLLs to the system (e.g., missing Visual C++ Redistributable or a specific runtime component), the application will fail with a 'DLL not found' error. This is the most common cause because the installation process was incomplete or corrupted, not because of hardware or driver issues.

Answer

The application configuration file is corrupted.

Answer

The computer does not have enough RAM to run the application.

Answer

The graphics driver is outdated.

Question 4

An employee receives a phone call from someone claiming to be from the IT department. The caller states there is a security issue and requests the employee's login credentials to 'fix the problem'. What should the employee do?

Accepted Answer

Hang up and call the IT department using the official number.. The employee should never provide credentials in response to an unsolicited request, even if the caller sounds knowledgeable. Hanging up and calling the IT department using the official number ensures the request is verified through a trusted communication channel, preventing a social engineering attack such as phishing or pretexting.

Answer

Give a temporary password to see if the issue resolves.

Answer

Provide the credentials because the caller sounds knowledgeable.

Answer

Ask for a call-back number and verify the caller's identity later.

Question 5

Refer to the exhibit. The user is unable to browse the internet using domain names but can access websites by IP address. Which configuration is most likely incorrect?

Accepted Answer

DNS server addresses. The user can access websites by IP address but not by domain name, which indicates that DNS resolution is failing. The DNS server addresses configuration is most likely incorrect, as the client cannot translate domain names to IP addresses without a valid DNS server. This is a classic symptom of a misconfigured or missing DNS server setting.

Answer

IPv4 address

Answer

Subnet mask

Answer

DHCP enabled

Question 6

Which TWO of the following are examples of popular relational database management systems (RDBMS)? (Select TWO.)

Accepted Answer

MySQL. MySQL (B) is a widely used open-source relational database management system that stores data in tables with rows and columns and supports SQL, making it a correct example of an RDBMS. PostgreSQL (D) is likewise a popular open-source relational database management system that enforces ACID transactions, foreign keys, and SQL compliance, so it also qualifies as an RDBMS. The remaining options are non-relational: Cassandra (A) is a distributed wide-column NoSQL store, MongoDB (C) is a document-oriented NoSQL database, and Redis (E) is an in-memory key-value data store, none of which implement the relational table-and-SQL model.

Answer

Cassandra

Answer

MongoDB

Answer

Redis

Question 7

A user wants to ensure data confidentiality. Which action is most appropriate?

Accepted Answer

Encrypt files. Encrypting files using algorithms like AES-256 ensures that even if unauthorized users gain access to the data, they cannot read it without the decryption key. This directly addresses the goal of data confidentiality by transforming plaintext into ciphertext that is unreadable without the proper key.

Answer

Change password

Answer

Share with everyone

Answer

Delete files

Question 8

Which type of computer memory loses its data when the power is turned off?

Accepted Answer

RAM. RAM (Random Access Memory) is volatile memory, meaning it requires continuous electrical power to retain data. When the power is turned off, the electrical charges in the memory cells dissipate, causing all stored data to be lost. This is why RAM is used for temporary storage of actively running programs and data.

Answer

HDD

Answer

ROM

Answer

SSD

Question 9

A user wants to sync their contacts and calendar between their Android phone and tablet. Which method is most commonly used?

Accepted Answer

Google account sync. Android devices natively integrate with Google accounts, which sync contacts, calendar, Gmail, and other Google services across devices when the same account is signed in. This is the default and most common method for syncing an Android phone and tablet. No third-party tools or pairing are required — signing into the same Google account on both devices enables automatic sync.

Answer

iCloud sync

Answer

Bluetooth pairing

Answer

NFC

Question 10

Which TWO of the following are examples of operating systems?

Accepted Answer

Windows 10. Windows 10 (A) is a correct answer because it is a full operating system released by Microsoft that manages hardware, provides a graphical user interface, and runs applications. Linux (D) is also correct because it is a family of open-source operating system kernels and distributions (such as Ubuntu, Fedora, and Debian) that manage system resources and provide the platform on which applications run. Adobe Photoshop (B) is not an operating system but an image-editing application that runs on top of an OS. Google Chrome (C) is a web browser, not an OS, despite Chrome OS being a separate product. Microsoft Office (E) is a productivity application suite, not an operating system.

Answer

Adobe Photoshop

Answer

Google Chrome

Answer

Microsoft Office

Question 11

A user is experiencing slow Wi-Fi performance at home. The router supports both 2.4GHz and 5GHz bands. Which frequency band would provide faster speeds but shorter range?

Accepted Answer

5GHz. The 5GHz band offers higher speeds but has shorter range and is less prone to interference compared to 2.4GHz.

Answer

NFC

Answer

2.4GHz

Answer

Bluetooth

Question 12

A company wants to deploy a new wireless standard that offers higher throughput and better performance in dense environments. Which Wi-Fi standard should they choose?

Accepted Answer

802.11ax (Wi-Fi 6). 802.11ax (Wi-Fi 6) is the latest standard, offering higher speeds, better efficiency, and improved performance in dense environments.

Answer

802.11n (Wi-Fi 4)

Answer

Bluetooth 5.0

Answer

802.11ac (Wi-Fi 5)

Question 13

A user reports that a spreadsheet application crashes whenever they try to use a specific macro. The technician needs to identify the cause. Which of the following should the technician check first?

Accepted Answer

The macro code for errors.. The macro code is the most direct cause of the crash because macros are custom scripts (often VBA) that execute within the application. If the code contains syntax errors, infinite loops, or attempts to access invalid objects, it will cause the application to terminate unexpectedly. Checking the code first follows the principle of isolating the specific change or action that triggers the fault.

Answer

The version of the operating system.

Answer

The file format of the spreadsheet.

Answer

The amount of RAM available.

Question 14

Refer to the exhibit. A security auditor reviews this application configuration. What is the most significant security concern?

Accepted Answer

The database password is stored in plaintext.. Storing a database password in plaintext within an application configuration file is a critical security vulnerability. If an attacker gains access to the file, they can immediately read the credentials and connect to the database, potentially compromising all stored data. This violates fundamental security principles such as least privilege and defense in depth, and it is explicitly warned against in secure coding guidelines like OWASP's Top 10 (A07:2021 – Identification and Authentication Failures).

Answer

The server name is hardcoded.

Answer

The log level is set to Debug.

Answer

The database name is SalesDB.

Question 15

Refer to the exhibit. A technician sees an established connection to an external IP on port 443 from PID 3400. What is the most likely purpose of this connection?

Accepted Answer

Secure web browsing (HTTPS). Port 443 is the default port for HTTPS (HTTP over TLS/SSL), which is used for secure web browsing. PID 3400 indicates a specific process, likely a web browser or an application making an encrypted HTTPS connection to an external IP. This matches the purpose of secure web browsing.

Answer

File sharing over SMB

Answer

Remote Desktop Protocol (RDP) session

Answer

Email submission (SMTP)