Tech+ IT Concepts and Terminology Deck Flashcards

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