CompTIA Tech+ FC0-U71 Certification Exam Flashcards

A comprehensive set of practice flashcards covering the key concepts, acronyms, and terminology for the CompTIA Tech+ FC0-U71 V6 Certification Exam.

Binary

A notational system using two digits, typically $0$ and $1$, used in computing.

Hexadecimal

A base-16 notational system used in computing.

Bit

The smallest unit of storage in computing.

Byte

A unit of data storage consisting of $8$ bits.

Megahertz (MHz)

A unit of measure for processing speed equivalent to one million cycles per second.

Gigahertz (GHz)

A unit of measure for processing speed equivalent to one billion cycles per second.

Identify the problem

The first step in the CompTIA troubleshooting methodology.

Establish a theory of probable cause (question the obvious)

The second step in the troubleshooting methodology, which may involve researching knowledge bases or the internet.

Verify full system functionality

The fifth step in the troubleshooting methodology, which includes implementing preventive measures if applicable.

Internet of Things (IoT)

A network of physical objects such as home appliances, vehicles, and medical devices that are embedded with sensors and software to connect and exchange data.

Motherboard/system board

The main internal computing component that holds and allows communication between many of the crucial electronic components of a system.

Firmware/basic input/output system (BIOS)

The core software that allows the hardware to talk to the operating system and helps start up the computer.

Central processing unit (CPU)

The primary component of a computer that acts as its 'brain,' performing most of the processing inside the computer.

Network interface card (NIC)

An internal computing component that allows a device to connect to a network, appearing as wired, wireless, onboard, or as an expansion card.

Volatile memory

A type of memory, such as RAM, that requires power to maintain the stored information.

Non-volatile memory express (NVMe)

A high-speed storage protocol used for solid-state drives (SSDs).

Network-attached storage (NAS)

A local network storage device that provides file-level data storage to a group of clients.

Uninterruptable power supply (UPS)

A peripheral device that provides emergency power to a load when the input power source or main power fails.

Ethernet connector (RJ45)

A common wired networking interface used for connecting computers and other devices to local area networks.

Near-field communication (NFC)

A short-range wireless technology that allows for communication between devices over a distance of a few centimeters.

Infrastructure as a Service (IaaS)

A cloud computing model that provides virtualized computing resources over the internet.

Platform as a Service (PaaS)

A cloud computing model that provides a platform allowing customers to develop, run, and manage applications without the complexity of building the infrastructure.

Software as a Service (SaaS)

A cloud computing model where software is licensed on a subscription basis and is centrally hosted.

Media access control (MAC) address

A unique identifier assigned to a network interface controller (NIC) for use as a network address in communications within a network segment.

Local area network (LAN)

A computer network that interconnects computers within a limited area such as a residence, school, or office building.

Wide area network (WAN)

A telecommunications network that extends over a large geographic area for the primary purpose of computer networking.

Graphical user interface (GUI)

An interface that allows users to interact with electronic devices through graphical icons and visual indicators.

Generative AI

A type of artificial intelligence that can create content, such as code or text, based on existing data.

Boolean

A fundamental data type having two possible values: true or false.

Pseudocode

A programming organizational technique that uses an informal, high-level description of an operating principle of a computer program.

Relational database

A database structure composed of tables with rows and columns, utilizing schemas, primary keys, and foreign keys.

Primary key

A field in a database table that uniquely identifies each record in that table.

Confidentiality, integrity, and availability (CIA)

The three core principles of the fundamental security framework.

Personally identifiable information (PII)

Information that can be used on its own or with other information to identify, contact, or locate a single person.

Least privilege model

A security concept where a user is given the minimum levels of access or permissions needed to perform their job functions.

Phishing

A social engineering method used to secure devices or data by tricking individuals into providing sensitive information.

Ciphertext

The encrypted form of data that is unreadable without a secret key, as opposed to plain text.

Wireless Protected Access 3 (WPA3)

A security standard for wireless networks provided in the CompTIA Tech+ objectives as an encryption option for Wi-Fi.