Information Technology Flashcards
6 cards from real IKM 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 flashcards as text
Which RAID level provides disk mirroring without striping?
Answer: RAID 1
RAID 1 creates an exact copy (mirror) of data on two or more disks, providing redundancy without striping.
What is the primary purpose of a DMZ in network architecture?
Answer: To provide a buffer zone between the internal network and the internet
A DMZ is a perimeter network segment that sits between an organization's internal network and the untrusted external network.
Which protocol operates at Layer 4 of the OSI model and provides reliable ordered delivery?
Answer: TCP
TCP operates at the Transport layer (Layer 4) and ensures reliable, ordered data delivery through acknowledgments and retransmissions.
What does SLA stand for in IT service management?
Answer: Service Level Agreement
A Service Level Agreement defines the level of service expected by a customer from a supplier, including metrics for measuring service quality.
Which virtualization type runs directly on hardware without a host operating system?
Answer: Type 1 hypervisor
A Type 1 (bare-metal) hypervisor runs directly on the physical hardware without requiring a host OS.
What is the primary function of Active Directory in a Windows environment?
Answer: Centralized identity and access management
Active Directory provides centralized authentication and authorization services, managing users, computers, groups, and policies across a Windows domain.