Tech+ IT Concepts and Terminology Deck Flashcards

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What is a modem?Converts data between digital and analog for transmission.
Compare and contrast common units of measure.Storage: Bit, Byte, KB, MB, GB, TB. Throughput: bps, Kbps, Mbps. Speed: MHz, GHz.
Explain what a data center is.A facility housing computer systems and storage components.
Explain what a motherboard is.Main PCB in a computer connecting CPU, RAM, and storage.
Explain SaaS.Software delivered over the internet on a subscription basis.
Explain a wireless access point.Allows Wi-Fi devices to connect to a wired network.
Define a switch in networking.Connects devices within a network, forwards data to destinations.
Explain the basics of computing.Input, Processing, Output, Storage.
Define a virtual machine.Software-based computer emulation running OS and apps.
Identify notational systems.Binary, Hexadecimal, Decimal, Octal.
What is PaaS?Platform for developing, running, and managing applications.
What is virtualization?Creating a virtual version of hardware or network resources.
What is cloud computing?Delivery of services like storage and software over the internet.
What is a firewall?Monitors and controls network traffic based on security rules.
Explain what DNS is.Translates domain names into IP addresses.
What is the difference between binary and hexadecimal notation?Binary: base 2 (0,1), Hexadecimal: base 16 (0-9, A-F).
Define 'bit' and 'byte'.A bit is 0 or 1; a byte is 8 bits.
Explain the troubleshooting methodology.1. Identify problem 2. Establish theory 3. Test 4. Plan solution 5. Verify 6. Document.
What is a hard drive?Storage device using rotating disks to store data.
What is a CPU?Performs most of the processing inside a computer. Stands for Central Processing Unit.
Define RAM.Memory used for storing data and machine code in use. Stands for Random Access Memory.
What is an IP address?Unique identifier for devices on a network.
What is a router?Forwards data packets between networks\, directs internet traffic.
Define IaaS.Provides virtualized computing resources over the internet.
What is network segmentation?Dividing a network into smaller parts for better security and performance.
What are the functions of input, processing, output, and storage?Input: enter data; Processing: manipulate; Output: display; Storage: save.
Define a VPN.A service that encrypts your internet connection and hides your online activity.

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