CompTIA A+ Certification Overview

These flashcards cover key concepts and essential details related to the CompTIA A+ certification and core technical knowledge.

What is the total number of tests required for CompTIA A+ certification?

Two tests: Core 1 and Core 2.

What are the two primary domains of the Core 1 exam in CompTIA A+ certification?

Five domains: Mobile devices, networking, hardware, virtualization and cloud computing, and hardware and network troubleshooting.

What is the maximum score required to pass each of the CompTIA A+ tests?

A score above 700.

How many performance-based questions are typically found at the beginning of the exams?

A handful of performance-based questions.

What kind of memory module is SO-DIMM associated with?

It's the memory module for laptops.

What is the main advantage of using SSDs over traditional HDDs in laptops?

SSDs have no moving parts, providing silent operation, fast access time, and less latency.

What is the main disadvantage of Liquid Crystal Displays (LCDs)?

They have a hard time achieving true black due to backlighting.

Which type of LCD is known for having better color representation?

IPS (In-Plane Switching) LCD.

For what purpose do the antennas in laptops typically get positioned at the top of the display?

To provide optimal performance for WiFi and Bluetooth connections.

What technology uses multiplexing for mobile communications?

GSM (Global System for Mobile communications).

What is the main difference between TCP and UDP?

TCP is connection-oriented and ensures reliable delivery, while UDP is connectionless and does not guarantee delivery.

Why is UDP used in real-time communications?

Because it doesn't require a formal connection, allowing instant communication without lag.

What does DHCP stand for, and what is its purpose?

Dynamic Host Configuration Protocol; it assigns IP addresses automatically.

What does the acronym PoE stand for and what does it provide?

Power over Ethernet; it provides electrical power along with data over the same Ethernet cable.

Which 802.11 standard has the capacity of achieving data rates of up to 600 Mbps?

802.11n.

What does the term “MU-MIMO” refer to in wireless technologies?

Multiple User-Multiple Input Multiple Output; allows simultaneous data transmission to multiple users.

What is RFID used for?

Radio Frequency Identification is used for tracking items, access badges, inventory, and animal identification.