FC0-U71 Practice Test 9 — 10 Questions

Question 1

A user is trying to access a website but receives a 'DNS server not responding' error. Which of the following is the MOST likely cause?

Accepted Answer

DNS server is unreachable. The 'DNS server not responding' error indicates that the client cannot reach the DNS server to resolve the domain name into an IP address. This is most commonly caused by the DNS server being unreachable due to network connectivity issues, server downtime, or incorrect DNS server configuration. Without DNS resolution, the browser cannot translate the website's URL into an IP address, even if the network and web server are functional.

Answer

DHCP server is down

Answer

Firewall is blocking the website

Answer

Modem is disconnected

Question 2

Which programming concept allows a program to make decisions based on conditions, such as checking if a user is logged in?

Accepted Answer

Conditional logic. Conditional logic (e.g., if/else statements) evaluates a Boolean expression and executes different code paths based on whether the condition is true or false. In the example, checking if a user is logged in requires a decision point: if the user is authenticated, grant access; otherwise, redirect to login. This is the fundamental mechanism for decision-making in programming, distinct from iteration, modularization, or data storage.

Answer

Loops

Answer

Functions

Answer

Variables

Question 3

An attacker gains physical access to a building by following an employee through a secured door without using a badge. This is an example of which social engineering technique?

Accepted Answer

Tailgating. Tailgating (also called piggybacking) is the social engineering technique where an attacker follows an authorized employee through a secured door without using their own credentials. It exploits politeness or inattention rather than technical vulnerabilities, and it is a physical social engineering attack.

Answer

Phishing

Answer

Baiting

Answer

Pretexting

Question 4

Refer to the exhibit. A technician notices high CPU usage from a process called 'svchost.exe'. What is the most appropriate action?

Accepted Answer

Scan for malware. Svchost.exe is a legitimate Windows process that hosts services. High CPU usage could indicate a malfunctioning service or malware disguised as svchost. Scanning for malware is the safest first step. Ending the process could cause system instability; updating Windows might fix service issues but not malware; virtual memory is not relevant.

Answer

End the process immediately

Answer

Increase virtual memory

Answer

Update Windows

Question 5

A web application is not responding to user input. The developer checks the code and finds an infinite loop. Which change will fix the infinite loop?

Accepted Answer

Add a counter variable that increments and check it in the condition. An infinite loop occurs when the loop's termination condition is never met. By adding a counter variable that increments with each iteration and checking it in the condition, the loop will eventually exit when the counter reaches a specified limit, thus breaking the infinite loop.

Answer

Remove the loop body

Answer

Add a break statement

Answer

Change from a for loop to a while loop

Question 6

A small business uses a single external IP address from their ISP and has a network of 10 computers. They want to host a web server that must be accessible from the internet, but they also need to protect their internal network. They have a firewall/router that supports port forwarding. Which configuration should they implement?

Accepted Answer

Configure port forwarding on the router to direct HTTP (port 80) and HTTPS (port 443) traffic to the web server's internal IP address. Port forwarding allows the firewall/router to accept incoming HTTP (port 80) and HTTPS (port 443) traffic on the single public IP address and forward it to the web server's internal private IP address. This exposes only the necessary ports to the internet while keeping the web server behind the firewall, protecting the internal network from direct external access.

Answer

Connect the web server directly to the ISP modem, bypassing the firewall

Answer

Place the web server in the DMZ of the firewall and allow all inbound traffic to the server's IP

Answer

Assign a public IP address to the web server and connect it to the same switch as the other computers

Question 7

A user wants to prevent unauthorized access to their laptop if stolen. Which is the best method?

Accepted Answer

Enable BitLocker. BitLocker is a full-disk encryption feature built into Windows that encrypts the entire drive, making data inaccessible without the decryption key. If the laptop is stolen, the thief cannot read any files even if they remove the hard drive and connect it to another system. This directly prevents unauthorized access to data, unlike other options that only protect against network or software threats.

Answer

Antivirus

Answer

Use a strong password

Answer

Firewall

Question 8

Which of the following file extensions indicates a document created with Microsoft Word?

Accepted Answer

.docx. The .docx extension is the default file format for Microsoft Word documents since Office 2007, based on the Office Open XML (OOXML) standard. It replaced the older binary .doc format and is used for word processing documents containing text, images, and formatting. This is a straightforward file-association question testing familiarity with common productivity file types.

Answer

.xlsx

Answer

.pptx

Answer

.pdf

Question 9

Refer to the exhibit. What does this event log entry indicate?

Accepted Answer

A power outage or unexpected shutdown occurred. The event log entry indicates a system shutdown that was not expected or planned, as shown by the 'unexpected' keyword and the event ID 41 in the System log, which corresponds to the Kernel-Power source. This typically occurs when the system loses power or crashes without a clean shutdown process, such as during a power outage or hardware failure.

Answer

A virus infected the system

Answer

A software update was installed

Answer

A scheduled restart took place

Question 10

A company's IT department is deploying a new payroll system. Before the system goes live, a group of employees from the accounting department test the system to ensure it meets their requirements and is usable. This type of testing is known as:

Accepted Answer

User acceptance testing. User acceptance testing (UAT) is performed by end users or business stakeholders to confirm that the system meets their real-world requirements and is usable before go-live. In this scenario, accounting employees testing the payroll system against their own needs is the textbook definition of UAT. It is the final validation step before production deployment.

Answer

System testing

Answer

Unit testing

Answer

Integration testing