Set 29 Flashcards
(27 cards)
Policies
Rules or configurations set by system administrators that control user behavior, system security, and access on a network or device. Often applied through Group Policy in Windows environments.
POP3
(Post Office Protocol version 3). An email protocol used to retrieve emails from a server to a local client. It typically downloads and deletes messages from the server (unlike IMAP which syncs).
Port (Networking)
A logical endpoint for communication in networking. Ports are identified by numbers (0–65535) and are used by protocols (e.g., port 80 for HTTP, port 443 for HTTPS).
Port (Physical Connection)
A hardware interface on a device where cables or peripherals connect (e.g., USB ports, HDMI ports, Ethernet ports).
Port Forwarding
A router configuration that allows external devices to access services on a private network by forwarding requests to a specific internal IP and port (commonly used for gaming or servers).
Port Replicator
A device that expands the connectivity options of a laptop or mobile device by providing multiple additional ports (e.g., USB, Ethernet, video). Often used in docking station setups.
Portable Battery Recharger (Power Bank)
A portable external battery used to recharge mobile devices when a power outlet isn’t available. Measured in mAh (milliamp hours).
POST
(Power-On Self-Test). A diagnostic process run by the firmware (BIOS/UEFI) during system startup to check the hardware components like RAM, CPU, and storage for errors before booting the OS.
POST Card
A diagnostic tool inserted into a motherboard expansion slot that displays error codes during POST. Helps troubleshoot hardware problems when a computer fails to boot.
Potential (Electrical)
The difference in electric charge between two points, measured in volts (V). Also known as voltage, it drives the flow of current in a circuit.
Power Conditioning
Improves the quality of power delivered to electronic devices by filtering noise, regulating voltage, and protecting against surges, spikes, or sags. Often used with sensitive equipment.
Power Management
A feature in operating systems or BIOS/UEFI that controls how a device conserves energy, such as by turning off displays, spinning down hard drives, or entering sleep mode.
Power Options
A Windows Control Panel setting that allows users to configure how the computer manages power, including sleep, hibernate, and display settings for both plugged-in and battery modes.
PoE
(Power over Ethernet). Technology that allows electrical power to be transmitted along with data over standard Ethernet cables. Often used for IP cameras, VoIP phones, and wireless access points.
Power Plan
A set of configurations in Windows that control power consumption behavior. Examples include Balanced, Power Saver, and High Performance modes.
PSU
(Power Supply Unit). The hardware component in a desktop computer that converts AC power from the wall into DC power used by internal components. Common wattage ranges from 400W to 1000W+.
Power User Group
A Windows user group that has more privileges than a standard user but fewer than an administrator. Can install software and change system settings that don’t affect others.
Power Saving Modes
Features that reduce power consumption by putting components into low-power states:
- Sleep – Saves session to RAM and powers down hardware.
- Hibernate – Saves session to disk and fully powers off.
- Hybrid – Combination of sleep and hibernate.
PowerShell
A command-line shell and scripting language developed by Microsoft for task automation and configuration management, more powerful than Command Prompt (CMD).
PXE
(Preboot Execution Environment). A method that allows a computer to boot from a network server rather than a local drive. Commonly used for remote OS installations or disk imaging.
Primary Partition
A type of partition on a hard drive that can contain a bootable operating system. Up to four primary partitions are allowed on an MBR-formatted drive.
Principle of Least Privilege
A security concept where users and applications are given the minimum access rights and permissions necessary to perform their tasks, reducing security risks.
Print Server
A device or software that manages print requests and handles communications between client devices and printers on a network.
PCB
(Printed Circuit Board). A flat board made of insulating material with electrical pathways etched into it. It holds and connects electronic components, like the motherboard or expansion cards.
