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MX Record: Utilized for outgoing (SMTP) and incoming (POP3/IMAP) email traffic.
A Record: Associates a domain name with an IPv4 address.
AAAA Record: Associates a domain name with an IPv6 address.
CNAME Record: Represents a canonical name or alias name, linking one domain name as an alias to another (e.g., beta.diontraining.com and www.diontraining.com).

Software as a Service (SaaS): A cloud computing model providing hosted applications over the internet to end-users (e.g., Google Docs, Office 365).
Infrastructure as a Service (IaaS): Allows consumers to outsource computing equipment purchases and maintain their data centers.
Platform as a Service (PaaS): Enables consumers to rent fully configured systems set up for specific applications.
Desktop as a Service (DaaS): Offers a full virtualized desktop environment via a cloud service; associated with Virtualized Desktop Infrastructure (VDI).
Application Virtualization: Creates a virtual environment for legacy applications, isolating them from the host operating system and resolving compatibility issues.

Default Gateway: The IP address of a router for sending packets destined for a remote network; not required but critical for network traffic to leave the local area.
Static IP Address: Manually configured when the DHCP server is disabled.
Dynamic IP Address: Configured automatically via a DHCP server when a new host connects.
Subnet Mask: Distinguishes between Network ID and Host ID in an IPv4 address.

USB-C: Supports high-speed data transfer rates (up to 10 Gbps), reversible design, and fast charging capabilities.
USB 2.0: Max transfer speeds of 480 Mbps.
Lightning Connector: Proprietary to Apple, good performance but not at USB-C speeds.
Micro-USB: Older standard with lower speeds and non-reversible design.

ST Connector: Bayonet-style connector with a long cylindrical shape.
SC Connector: Push/pull design with a square shape, widely used in single-mode systems.
LC Connector: Small form factor connector combining transmit and receive in one package.
F-type Connector: Used with coaxial cables, not for fiber optics.

Crosstalk: Unintentional transmission of signals from one cable to another; mitigated through proper twisting of cable pairs.
Cable Standards (EIA/TIA-568A & 568B): Different color pair arrangements; mismatched pairs lead to total connectivity failure.
Split Pair Error: Occurs when wires from different pairs are swapped, can pass continuity tests but results in significant crosstalk and poor performance.

FTTP (Fiber to the Premise): Delivers fiber directly to the home; fastest option typically offering 1 Gbps or higher.
FTTN (Fiber to the Node): Fiber to local area but uses copper wiring to home, slowing speeds to 100-200 Mbps.
FTTC (Fiber to the Curb): Similar to FTTN but uses coaxial cable, generally achieving 300-500 Mbps.

ECC (Error-Correcting Code): Memory with built-in error correction; more expensive and generally found in servers, not desktops.
Single-Channel Memory: Utilizes one 64-bit bus between CPU and RAM.
Dual-Channel Memory: Has two pathways for 128 bits per transaction.
Non-Parity Memory: Basic memory without error checking outside initial startup.

802.11a: Operates at 5 GHz, speeds up to 54 Mbps; limited due to high cost at release.
802.11b: Uses 2.4 GHz, speeds up to 11 Mbps; early standard.
802.11g: Functions on 2.4 GHz, speeds up to 54 Mbps.
802.11n: Both 2.4 GHz (up to 108 Mbps) and 5.0 GHz (up to 600 Mbps), supports MIMO technology and channel bonding.
802.11ac (Wi-Fi 5): Phased out wireless A and B, utilizes 5 GHz, speeds up to 3.5 Gbps, incorporates MU-MIMO.
802.11ax (Wi-Fi 6): Utilizes dual frequencies (2.4 and 5.0 GHz), speeds up to 9.6 Gbps, uses OFDMA for bandwidth efficiency.

USB Standards: USB 1.1 at 12 Mbps, USB 3.0 at 5 Gbps, USB 3.1 at 10 Gbps.
Power Delivery: USB 3.0 can supply up to 4.5 watts per device. USB devices are hot-swappable, drawing up to 2.5 watts.

DHCP: Automatically assigns IP addresses and network parameters over port 67.
NTP (Network Time Protocol): Synchronizes clocks over port 123.
POP3: Email retrieval over port 110.
IMAP: Email management over port 143.
SMTP: Email sending over port 25.

Keystone Effect: Distortion creating trapezoidal images; corrected by adjusting keystone settings.
Brightness and Contrast: Adjusts image lumens and difference between light and dark.
Color Depth: Number of unique colors displayed at once.

Key components include media streaming, file-sharing, Gigabit NIC, RAID array, and hard drives.
RAID 5: Offers balance of speed and redundancy; preferred over RAID 0 for safety.
Preferred Storage: Multiple hard drives are favored over single SSDs for cost efficiency and capacity.

Port Replicator vs. Docking Station: Port replicators extend existing ports; docking stations enhance capabilities beyond built-in ports.
Tone Generator: Used with a probe for cable identification; detects signals sent over cabling.
Cable Tester: Ensures proper cable configuration and assesses faults like crosstalk and attenuation.
Multimeter: Measures voltage, amperage, and resistance; used for fault finding.