Information Technology Fundamentals Flashcards
6 cards from real NOCTI practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 6 Information Technology Fundamentals flashcards as text
What is virtualization in the context of IT infrastructure?
Answer: Creating virtual versions of physical hardware resources like servers, storage, and networks
Virtualization creates virtual versions of physical hardware resources, allowing multiple virtual machines to run on a single physical server.
What is the purpose of a VPN (Virtual Private Network)?
Answer: To create a secure, encrypted connection over a public network
A VPN creates a secure, encrypted tunnel over a public network, protecting data privacy and allowing secure remote access to private network resources.
What is the difference between SSD and HDD storage?
Answer: SSD uses flash memory with no moving parts; HDD uses spinning magnetic disks
SSDs use flash memory chips with no moving parts, while HDDs use spinning magnetic platters with read/write heads, making SSDs significantly faster.
What is two-factor authentication (2FA)?
Answer: A security method requiring two different forms of identification to access an account
Two-factor authentication requires two different types of identification: typically something you know (password) and something you have (phone) or something you are (biometric).
What is the OSI model and how many layers does it have?
Answer: A conceptual networking model with 7 layers that describes how data moves across a network
The OSI model is a conceptual framework with 7 layers that standardizes how different networking protocols and technologies interact.
What is the primary function of an operating system?
Answer: To manage hardware resources and provide a platform for applications to run
An operating system manages the computer's hardware resources and provides a platform and services that allow application software to run.