The CompTIA Tech+ Certification Exam (FC0-U71)

According to the CompTIA Tech+ Study Guide:

“Changing Default Usernames and Passwords — The first thing a potential hacker will try to use is the default username or password for a device. Always change them.”

It also emphasizes:

“Enabling passwords and changing default usernames and passwords are essential password management best practices.”

Therefore, the correct action after server setup is to change the default usernames and passwords to secure the system.

Verified Reference:

Chapter 11: Security Best Practices — “Managing Passwords” (pp. 594–595).

The correct answer is C. Configuring automatic software updates. Automatic updates help keep the operating system and applications patched against known security flaws. This is proactive because it reduces exposure before an attack occurs. Cloud backup helps with data recovery, but it does not directly prevent online threats. Updating subscription software may help in some cases, such as antivirus software, but the broader and stronger proactive security measure is automatic software updates. Installing remote access software can increase risk if it is not properly secured.

Exact Extract/Reference: The Tech+ Study Guide states that device hardening “starts with keeping the software up-to-date” and lists patching software as a security-hardening action. It also warns that some updates address “critical security flaws” and that ignoring them can make a PC vulnerable to Internet-based attacks.

The correct answer is B. Drivers. A printer driver is required so the operating system can communicate with the printer. If the printer is connected and appears to be set up but still does not work, an incorrect, missing, or outdated driver is the most likely cause. Services, permissions, and extensions can affect some systems, but the most direct and common issue after printer setup is driver installation.

Exact Extract/Reference: The CompTIA Tech+ Study Guide states that, in addition to connecting the printer, “you need to install a special piece of software called a printer driver so the operating system knows how to talk to the printer.” The guide also explains that after hardware installation, the operating system either detects the device automatically or the user must install a driver manually.

Verified and corrected questions 172–178:

A password reuse policy prevents users from using the same password across multiple platforms or reusing previously used passwords. This is a best practice to reduce the risk of credential stuffing attacks.

“Password reuse policies help ensure users do not reuse old or existing passwords across multiple platforms, reducing exposure from compromised accounts.” — CompTIA ITF+ Security Objectives

Correct answer: A

The CompTIA Tech+ Study Guide defines:

“Devices that use radio frequency (RF) transmit a very limited range, typically only a few inches or so. This technology is fairly common in mobile payment applications. Because of the short distances involved, a related term you’ll see is near-field communication (NFC).”

NFC allows devices such as smartphones to securely transmit payment data over short distances—precisely the method used in vending machine purchases.

Verified Reference:

Chapter 2: Peripherals and Connectors — “Wireless Connections: NFC” (p. 99).

A char (character) represents a single letter, number, or symbol. It differs from a string, which is a sequence of characters.

“The char data type stores a single alphanumeric character or symbol.” — CompTIA ITF+ Programming Fundamentals

Correct answer: C

Output devices display or present data to users:

“A Smart TV displays visual and audio output, qualifying it as an output device.”

Web cameras, keyboards, and microphones are input devices that capture data rather than display or present it.

Generative AI is used to create new content including images, music, videos, or text. This includes tasks like image editing, enhancement, or generation using tools such as DALL·E, MidJourney, or generative adversarial networks (GANs).

“Generative AI creates new data or content, such as images, music, or text. It is commonly used in image editing, graphic design, and media production.” — CompTIA ITF+ Guide

Other AI types:

Assistive AI helps with tasks like navigation or text suggestions.

Predictive AI forecasts outcomes using existing data.

Chatbots simulate conversation, often in customer service.

RAM (Random Access Memory) is volatile memory, meaning its contents are erased when power is removed. According to the CompTIA ITF+ FC0-U71 Official Study Guide:

“RAM is volatile storage, which means that it requires constant power to maintain the stored information. When power is turned off, all data in RAM is lost.”

BIOS (firmware), NIC (hardware interface), and CPU (hardware processor) remain unaffected by shutdowns regarding stored information.