Tech+ Practice Questions
Prepare for FC0-U71 with more than an answer.
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- v1Version 1 257 questions Current
- FC0-U61Legacy CompTIA IT Fundamentals+ 333 questions Locked
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- Level
- Foundational
- Valid for
- Lifetime (no expiration)
Domains covered on the exam 6
- IT Concepts and Terminology13%
- Infrastructure24%
- Applications and Software18%
- Software Development Concepts13%
- Data and Database Fundamentals13%
- Security19%
- 1
A developer needs to exchange data between a web server and a browser-based application. The data is complex, with nested objects and arrays. The format must be lightweight and easily parsable by JavaScript. Which data format is the BEST choice?
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Correct answer: C
JSON is the ideal format for this use case. It is lightweight, human-readable, and its structure directly maps to JavaScript objects, making it trivial to parse in a browser. It natively supports nested objects and arrays, which is a key requirement. CSV is only suitable for simple, tabular data. XML can handle complex data but is more verbose and requires more effort to parse compared to JSON. SQL is a query language, not a data interchange format.
- 2
A small business currently backs up its main server by copying all files to an external hard drive every Friday night. The owner is concerned that if the server fails on a Thursday, they will lose four days of work. They want to minimize potential data loss without dramatically increasing backup time or storage space. Which backup strategy should they add to their current process?
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Correct answer: B
Implementing daily incremental backups is the best solution. An incremental backup only copies files that have changed since the last backup of any type. This means the daily backups will be very small and fast. In a disaster recovery scenario, they would restore the last full backup (from Friday) and then each incremental backup in order (Monday, Tuesday, etc.). This strategy significantly reduces the Recovery Point Objective (RPO), minimizing data loss, while also minimizing the daily backup time and storage space required.
- 3
An organization is implementing a new security policy. The policy states that a user's access to a system should be limited to only the permissions necessary to perform their job duties. For example, a marketing employee should not have access to financial records. This policy is an example of which security principle?
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Correct answer: B
The principle of least privilege dictates that users, programs, or processes should be given only the minimum levels of access – or permissions – needed to perform their job functions. This is a fundamental concept in information security designed to limit the damage that can be caused by an accident, error, or malicious attack.
- 4
A user receives an urgent email that appears to be from their bank, asking them to click a link to verify their account details due to a security breach. The email uses the bank's logo but has several grammatical errors and the sender's email address looks suspicious. This is a classic example of which type of security threat?
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Correct answer: C
Phishing is a type of social engineering attack where attackers attempt to trick users into revealing sensitive information (like usernames, passwords, or credit card details) by disguising themselves as a trustworthy entity in an electronic communication. The key elements described—urgency, impersonation of a trusted entity, a suspicious link, and poor grammar—are all common red flags of a phishing email.
- 5
A technician is troubleshooting a network connectivity issue for a user. The user's computer is connected to the network via an Ethernet cable, but they cannot access any network resources. The technician runs
ipconfigon the user's Windows PC and sees an IP address of169.254.10.25. What is the most likely cause of the problem?graph TD Internet -- ISP --> Modem --> Router Router -- Switch --> UserPC[User PC: 169.254.10.25] Router --> DHCPServer[(DHCP Server)] Router --> OtherPC[Other PC: 192.168.1.102]Show answer details
Correct answer: C
An IP address in the
169.254.x.xrange is an Automatic Private IP Addressing (APIPA) address. Windows assigns itself an APIPA address when it is configured for DHCP but cannot reach a DHCP server to obtain an IP address lease. This indicates a problem with the DHCP server itself or a connectivity issue between the client PC and the server (such as a bad cable, faulty switch port, or VLAN misconfiguration). - 6
A technician is troubleshooting a computer that fails to boot. After powering on the machine, a series of long and short beeps are heard, but nothing appears on the screen. According to the standard troubleshooting methodology, what is the MOST logical next step?
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Correct answer: B
The beep codes are part of the Power-On Self-Test (POST) and indicate a specific hardware failure detected by the BIOS/UEFI. The first step in establishing a theory of the problem is to understand what these codes mean. The motherboard manual provides the key to deciphering these codes, which typically point to issues with RAM, CPU, or the video card. Reinstalling the OS is irrelevant as the system is not even reaching the bootloader. Replacing the power supply or checking cables are plausible but less precise than first interpreting the specific error code the system is providing.
- 7
A project manager is estimating the network bandwidth required for a new office. The team will consist of 50 users who will primarily use cloud applications and video conferencing. Which unit of measure is MOST appropriate for specifying the required internet connection speed?
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Correct answer: C
Network connection speed, or bandwidth, is measured in bits per second. For modern office internet connections, megabits per second (Mbps) or gigabits per second (Gbps) are the standard units. Gigabytes (GB) measure data storage capacity. Gigahertz (GHz) measures processing speed (like a CPU's clock cycle). Terabytes (TB) is a larger unit of data storage.
- 8
A network administrator is examining a packet capture and notices an address listed as
00:1A:2B:3C:4D:5E. Which notational system is being used for this address, and what does it typically represent?Show answer details
Correct answer: C
The address format, consisting of six pairs of characters (0-9 and A-F) separated by colons, is characteristic of a MAC (Media Access Control) address. MAC addresses are represented using the hexadecimal (base-16) notational system. They are unique hardware identifiers for network interface cards (NICs). IPv4 addresses use decimal notation, and subnet masks are represented in either decimal or binary.
- 9
A systems analyst is building a new workstation for a graphic designer. Which of the following internal components are MOST critical for high performance in tasks like video rendering and 3D modeling? (Select TWO).
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Correct answer: A, B
- 10
A small business owner wants to set up a simple network. They have purchased a single device from their ISP that provides Wi-Fi, assigns IP addresses to devices, and connects their local network to the internet. What type of device does this MOST accurately describe?
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Correct answer: B
A SOHO (Small Office/Home Office) router is a multi-function device that combines the features of a router (connecting networks), a network switch (connecting local devices), a wireless access point (providing Wi-Fi), and often a DHCP server (assigning IP addresses). A standalone switch only connects devices on the same local network. A modem only modulates/demodulates the signal for the internet connection. An access point only provides wireless connectivity and must be connected to a router.
