FC0-U71 Practice Test 41 — 15 Questions

Question 1

A programmer is writing an if-else statement to check if a user is an admin. The code should set a variable 'accessLevel' to 'full' if admin, else 'restricted'. Which code snippet accomplishes this?

Accepted Answer

if (isAdmin == true) { accessLevel = 'full'; } else { accessLevel = 'restricted'; }. Ly uses the equality operator (==) to compare isAdmin to the boolean value true. If the condition evaluates to true, accessLevel is set to 'full'; otherwise, it is set to 'restricted'. This matches the requirement exactly.

Answer

if (isAdmin == false) { accessLevel = 'full'; } else { accessLevel = 'restricted'; }

Answer

if (isAdmin = true) { accessLevel = 'full'; } else { accessLevel = 'restricted'; }

Answer

if (isAdmin == true) { accessLevel = 'restricted'; } else { accessLevel = 'full'; }

Question 2

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 3

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

Accepted Answer

Number of users. Options C and E are correct because the number of users and cost are key considerations when choosing a software license. Option A is wrong because brand name does not affect licensing terms. Option B is wrong because font style is a design preference, not a licensing factor. Option D is wrong because interface color is also a design preference, not a licensing factor.

Answer

Brand name

Answer

Font style

Answer

Color of interface

Question 4

A server in a data center is running a critical application. The server is connected to a managed switch via two network cables for redundancy (link aggregation). Recently, the server experienced intermittent connectivity issues. The network logs show that every few hours, one of the links goes down and then comes back up within a minute. The other link remains up. The server's team reports no errors in the server logs. What is the most likely cause of this issue?

Accepted Answer

The network cable is poorly terminated. A poorly terminated cable can cause intermittent physical-layer issues such as impedance mismatches or partial breaks, which lead to link flaps (link down/up events) without generating errors in the server's operating system logs. In a link aggregation group (LAG) using LACP or static aggregation, a single faulty cable will cause only that link to drop, while the other link continues to carry traffic, matching the described symptom of one link cycling every few hours.

Answer

The switch's uplink port is faulty

Answer

The switch is experiencing broadcast storms

Answer

The server's network adapter is overheating

Question 5

A small business has a single server running Windows Server 2019 that acts as a domain controller, file server, and DHCP server. The server has a single network interface with IP address 192.168.1.10/24. The office has 30 client computers running Windows 10. All clients obtain IP addresses automatically. The network uses a single unmanaged switch. The internet connection is provided by a cable modem with IP 192.168.1.1. The server is configured with a static IP of 192.168.1.10, and the DHCP scope is 192.168.1.100-192.168.1.200. Recently, users have reported that they cannot access the internet. The technician checks that the cable modem is online and that the server can ping the modem. The technician runs 'ipconfig /all' on a client and sees: IP: 192.168.1.101, Subnet: 255.255.255.0, Default Gateway: 192.168.1.10, DNS: 192.168.1.10. The client can ping the server (192.168.1.10) but cannot ping the modem (192.168.1.1). What is the most likely cause?

Accepted Answer

Change the DHCP scope option for the default gateway to 192.168.1.1. The DHCP scope is configured with the default gateway option set to 192.168.1.10 (the server's IP), but the actual default gateway for internet access is the cable modem at 192.168.1.1. Since clients receive their gateway via DHCP, they are sending all off-subnet traffic to the server, which is not configured to route to the internet. Changing the DHCP scope option for the default gateway to 192.168.1.1 will allow clients to route internet traffic through the modem.

Answer

Disable the Windows Firewall on the server to allow traffic

Answer

Replace the cable modem as it is not routing traffic correctly

Answer

Configure the DNS server to forward queries to 8.8.8.8

Question 6

Which of the following is a characteristic of a worm in the context of malware?

Accepted Answer

It self-replicates without needing a host file. A worm is a standalone malware that replicates itself to spread to other computers without needing to attach to a host file, often exploiting network vulnerabilities.

Answer

It disguises itself as legitimate software

Answer

It encrypts files and demands a ransom

Answer

It requires a host file to spread

Question 7

A user reports that their computer cannot access the internet, but it can reach other devices on the local network. Which of the following is the MOST likely cause?

Accepted Answer

Misconfigured default gateway. The default gateway is the router interface that connects the local network to external networks, such as the internet. If the default gateway is misconfigured (e.g., wrong IP address or subnet mask), the computer can still communicate with devices on the same subnet using ARP and Layer 2 switching, but it cannot route packets to external destinations because it has no valid next-hop address. This directly explains why local access works but internet access fails.

Answer

Incorrect DNS server address

Answer

Faulty network cable

Answer

Local firewall blocking all outbound traffic

Question 8

A developer is learning version control. Which THREE of the following are core Git concepts? (Select 3)

Accepted Answer

Branch. Repository, commit, and branch are fundamental Git concepts.

Answer

Debugger

Answer

Compiler

Question 9

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)

Question 10

A user reports that their laptop cannot connect to the office Wi-Fi. Other devices connect fine. The technician checks the wireless adapter status in Device Manager and sees a yellow exclamation mark. The technician attempts to update the driver but receives an error that the best driver is already installed. What should the technician do next?

Accepted Answer

Roll back the driver to a previous version. The yellow exclamation mark in Device Manager indicates a driver problem. Since updating the driver fails with 'best driver already installed,' the issue is likely a faulty or incompatible driver version. Rolling back the driver restores the previous working version, which is the correct next step before considering hardware replacement.

Answer

Run the Windows Network Troubleshooter

Answer

Replace the wireless adapter

Answer

Disable and re-enable the wireless adapter

Question 11

A technician is setting up a new computer on a network. The computer receives an IP address of 169.254.1.5. Which of the following is the most likely issue?

Accepted Answer

The DHCP server is unavailable. The IP address 169.254.1.5 falls within the Automatic Private IP Addressing (APIPA) range (169.254.0.0/16), which Windows automatically assigns when a DHCP client fails to receive an IP lease from a DHCP server. This indicates that the DHCP server is either unreachable or not responding, making D the correct answer.

Answer

The network cable is faulty

Answer

The DNS server is unreachable

Answer

The gateway is misconfigured

Question 12

Which TWO of the following are examples of input devices? (Select TWO).

Accepted Answer

Mouse. The mouse and keyboard are classic examples of input devices because they allow users to send data and commands to a computer. A mouse translates physical movement and button clicks into cursor control signals, while a keyboard converts key presses into electrical signals that the system interprets as characters or commands. Both operate by sending input to the computer for processing, not by receiving or outputting data.

Answer

Printer

Answer

Speaker

Answer

Monitor

Question 13

Which of the following best describes a NoSQL database?

Accepted Answer

It provides a flexible schema for unstructured data.. NoSQL databases are designed for flexible schema and can handle unstructured data, often used for big data and real-time web applications.

Answer

It stores data in tables with rows and columns.

Answer

It uses SQL for querying.

Answer

It enforces strict referential integrity.

Question 14

A database administrator needs to retrieve, update, and delete records from a customer table. Which THREE SQL commands are required? (Select THREE.)

Accepted Answer

DELETE. SELECT retrieves data, UPDATE modifies existing records, DELETE removes records. INSERT adds new records, but the question specifies retrieve, update, delete.

Answer

INSERT

Answer

CREATE

Question 15

Which THREE of the following are common types of computer networks? (Select three.)

Accepted Answer

LAN. A LAN (Local Area Network) connects computers within a limited geographic area, such as a home, office, or school, using Ethernet or Wi-Fi. It is one of the most fundamental network types, typically operating at Layer 2 of the OSI model with high data transfer rates and low latency.

Answer

HDMI

Answer

USB