FC0-U71 Practice Exam 3 — 20 Questions

Question 1

Which TWO of the following are examples of volatile memory?

Accepted Answer

RAM. RAM (Random Access Memory) is volatile because it requires constant electrical power to retain data; once the system is powered off, all stored information is lost. This characteristic makes RAM ideal for temporary storage of actively used data and program instructions during operation.

Answer

Hard Drive

Answer

SSD

Answer

ROM

Question 2

Which of the following is a primary advantage of using a database over a flat file system for storing customer records?

Accepted Answer

Supports simultaneous multi-user access. Databases support concurrent multi-user access with locking mechanisms, while flat files cannot handle simultaneous writes safely.

Answer

Simpler to set up and manage

Answer

Stores data in a non-structured format

Answer

No need for a query language

Question 3

A user reports that their laptop cannot connect to the corporate Wi-Fi. Other devices in the same area work fine. The network technician checks the laptop and sees that the wireless adapter is enabled and shows available networks, but the connection attempt to the corporate SSID fails with an authentication error. Which of the following is the MOST likely cause?

Accepted Answer

The pre-shared key is incorrect. The authentication error specifically indicates that the laptop failed to verify its credentials with the access point. Since the wireless adapter is enabled and the SSID is visible, the most common cause is an incorrect pre-shared key (PSK), which prevents the 4-way handshake in WPA2/WPA3 from completing successfully.

Answer

The MAC address is filtered on the access point

Answer

The DHCP lease has expired

Answer

The wireless adapter is disabled in Device Manager

Question 4

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.

Answer

The user's password has expired.

Answer

The user is entering data too quickly.

Question 5

A small business owner wants to create a simple website to display business hours and contact information. The owner has no programming experience and needs to quickly update the content without learning code. A family member suggests using a content management system (CMS) like WordPress. Another suggests using a plain HTML file and editing it manually. The owner is concerned about both ease of use and security. Which solution best addresses the owner's needs while minimizing technical complexity?

Accepted Answer

Use a CMS because it provides a graphical interface for content updates.. A CMS provides a graphical interface for easy updates without coding, and with proper maintenance it can be secure. Plain HTML requires manual editing each time, which is not user-friendly. A static site generator still requires technical skills. Hiring a developer is expensive and adds complexity.

Answer

Hire a developer to create a custom application.

Answer

Use a plain HTML file because it does not require a database.

Answer

Use a static site generator but requires command line knowledge.

Question 6

A user connects to a website using its domain name. Which server translates that domain name into an IP address?

Accepted Answer

DNS server. DNS (Domain Name System) servers resolve domain names to IP addresses, enabling browsers to locate web servers.

Answer

Proxy server

Answer

Web server

Answer

DHCP server

Question 7

A user is troubleshooting a slow internet connection and has verified that the modem is working. The user suspects that the router is causing the issue. Which TWO of the following functions are typically performed by a home router? (Select TWO.)

Accepted Answer

Assigns IP addresses via DHCP. A home router typically performs NAT (Network Address Translation) to allow multiple devices to share a single public IP, and also provides DHCP to assign IP addresses to devices on the local network.

Answer

Translates domain names to IP addresses

Answer

Amplifies wireless signal

Answer

Converts ISP signal to digital

Question 8

Which THREE of the following are common types of network topologies? (Choose three.)

Accepted Answer

Star. Star, bus, and ring are three of the most common physical network topologies defined in networking standards. In a star topology, all devices connect to a central switch or hub, which manages traffic and isolates failures to individual links. Bus topology uses a single backbone cable with terminators at both ends, while ring topology passes data sequentially from one node to the next using a token-passing mechanism (e.g., Token Ring per IEEE 802.5).

Answer

Circle

Answer

Square

Question 9

A user downloads a free application from the internet that offers full functionality for a 30-day period. After 30 days, the user must pay to continue using it. Which license type does this describe?

Accepted Answer

Trial. Trial software (often called trialware) provides full functionality for a limited time, then requires payment. Shareware may have limited functionality or be fully functional for a trial period. Freeware is free forever, and open source is free and modifiable.

Answer

Open source

Answer

Freeware

Answer

Shareware

Question 10

Which TWO of the following are advantages of server virtualization? (Select TWO.)

Accepted Answer

Easier backup and recovery using snapshots. Server virtualization allows administrators to take snapshots of virtual machines (VMs) at a specific point in time. These snapshots capture the entire VM state, including disk, memory, and power state, enabling quick and consistent backup and recovery without the complexity of traditional physical server backups.

Answer

Increased security by isolating VMs

Answer

Eliminates the need for operating system licenses

Answer

Improved performance over physical servers

Question 11

A company has a server that hosts a critical database. The server uses RAID 5 with three disks. One disk fails. What is the immediate impact on data availability?

Accepted Answer

Data is still available, but performance may degrade. RAID 5 uses block-level striping with distributed parity. With three disks, the array can tolerate a single disk failure without data loss because the parity information on the remaining two disks can reconstruct the missing data on the fly. Therefore, data remains fully available immediately after one disk fails, though read and write performance may degrade due to the overhead of parity calculation and reconstruction.

Answer

Data is available only after replacing the disk

Answer

The server will shut down

Answer

All data on the array is lost

Question 12

Which of the following is a valid SQL statement to retrieve all records from a table named 'Employees'?

Accepted Answer

SELECT * FROM Employees. SELECT * FROM Employees is the correct SQL syntax to retrieve all columns and rows from the table. The other options have incorrect syntax or keywords.

Answer

GET * FROM Employees

Answer

FETCH * FROM Employees

Answer

READ * FROM Employees

Question 13

What is the binary representation of the decimal number 10?

Accepted Answer

1010. The decimal number 10 is converted to binary by dividing by 2 repeatedly: 10 ÷ 2 = 5 remainder 0, 5 ÷ 2 = 2 remainder 1, 2 ÷ 2 = 1 remainder 0, 1 ÷ 2 = 0 remainder 1. Reading the remainders from bottom to top gives 1010. This matches option C.

Answer

1001

Answer

1110

Answer

1100

Question 14

Which TWO of the following are types of optical disc storage? (Select exactly two.)

Accepted Answer

DVD. DVD (Digital Versatile Disc) is a type of optical disc storage that uses a laser to read and write data on a reflective plastic disc. It is a standard optical media format, distinct from magnetic or solid-state storage technologies.

Answer

SSD

Answer

HDD

Answer

Flash drive

Question 15

A company wants to implement a backup solution that allows for quick restoration of individual files. Which backup type should be used?

Accepted Answer

Full backup. A full backup creates a complete copy of all selected data, allowing any individual file to be restored directly from that single backup set without needing to process other backup sets. This makes it the simplest and fastest option for restoring specific files, as no additional dependencies or chain reconstructions are required.

Answer

System image backup

Answer

Differential backup

Answer

Incremental backup

Question 16

What is the difference between a threat and a vulnerability?

Accepted Answer

A threat is a potential harm, and a vulnerability is a weakness. A threat is a potential source of harm (e.g., a hacker), while a vulnerability is a weakness that can be exploited (e.g., unpatched software).

Answer

They are the same thing

Answer

A threat is a weakness, and a vulnerability is a danger

Answer

A threat is a type of malware, and a vulnerability is a type of attack

Question 17

A security analyst is evaluating risks to the company's network. According to the risk formula (Risk = Likelihood × Impact), which THREE of the following are considered vulnerabilities?

Accepted Answer

Weak encryption used for data in transit. A vulnerability is a weakness that can be exploited by a threat.

Answer

A hacker attempting to guess passwords

Answer

A fire in the data center

Question 18

An employee allows a delivery person to enter a secure office building by holding the door open. The delivery person does not have an access badge. Which social engineering attack is this?

Accepted Answer

Tailgating. Tailgating (or piggybacking) occurs when an unauthorized person follows an authorized person into a restricted area without proper authentication.

Answer

Phishing

Answer

Baiting

Answer

Pretexting

Question 19

What is the primary risk of using public Wi-Fi without a VPN?

Accepted Answer

Data transmitted can be intercepted by attackers. Public Wi-Fi is often unencrypted, allowing attackers to intercept data transmitted over the network. A VPN encrypts traffic, protecting data in transit.

Answer

The Wi-Fi network may be slower

Answer

The device may overheat

Answer

Increased risk of malware infection from the network

Question 20

A user is concerned about connecting to a public Wi-Fi network at a coffee shop. Which security measure can best protect their data?

Accepted Answer

Use a VPN. A VPN encrypts traffic between the user's device and the VPN server, protecting data on public networks.

Answer

Use HTTPS websites only

Answer

Use a firewall

Answer

Disable antivirus