220-1101 Acronyms Flashcards
Remember the Acronyms
AAA
Authentication, Authorization, Accounting
AAA refers to Authentication (to prove identity), Authorization (to give permission) and Accounting (to log an audit trail)
It is a framework used to control and track access within a computer network.
AC
Alternating current is often abbreviated as AC and is often referenced as a line with these curves. As the name implies, alternating current is constantly reversing direction as it flows through the electrical lines. This allows us to efficiently distribute AC power over very long distances.
ACL
Access control lists are used as packet filtering mechanisms on our enterprise networks. In this video, you’ll learn about ACLs and how they can be used to protect services on our networks.
An access control list is a packet filter. It’s a way to allow or disallow traffic from blowing through a certain part of the network. You might also see access control lists used in conjunction with network address translation to be able to determine what IP addresses need to be translated. Or maybe we’re using access control lists with quality of service so we’ll know exactly what type of traffic flows need to have what type of priority.
ACPI
Advanced Control and Power Interface
Advanced Configuration and Power Interface (ACPI) is a hardware and software standard that allows the operating system to manage the power consumption and configuration of computers and peripherals. It was developed by Intel, Microsoft, and Toshiba, and is built into Windows 98 and later operating systems.
ADF
An ADF is a device that can be built into an all-in-one printer or scanner, allowing users to feed a large number of papers into the device.
AES
AES: Advanced Encryption Standard - A symmetric encryption algorithm widely used in securing data. AP: Access Point - A device that allows wireless devices to connect to a wired network using Wi-Fi.
AGP
The Accelerated Graphics Port interface was created as a standard interface for high-performance graphics cards. The AGP standard was eventually abandoned for high-speed PCI Express ports.
AP
A device that allows wireless devices to connect to a wired network using Wi-Fi.
API
An API is an Application Program Interface. APIs are program to program communication ports. A program regularly scans its input ports - let’s say it has a port labeled 0xAA11. Another program can send data, info, requests, etc. to the port address of the program’s (port 0xAA11). The first program will read and react to the input. That is an API.
APFS
Apple File System
Apple File System, or APFS. This file system has been optimized for solid state drives and includes features such as encryption, snapshots, data integrity, and of course works across all of the different Apple hardware.
APIPA
Automatic Private Internet Protocol
automatic private IP addressing, or APIPA. This is what we call a link local address. It’s an automatic address that’s assigned to your workstation that allows you to communicate on your own IP subnet, but you’re not able to communicate outside of your local subnet.
APK
If you have an Android device, you can install software from any source. You just need the APK file, which stands for the Android Package Kit file. And then you can install that application on your Android device. This is why we always say to never install software on a device, unless you already trust the source.
ARM
Advanced RISC - reduced Instruction Set Computer- Machine
With RISC, a central processing unit (CPU) implements the processor design principle of simplified instructions that can do less but can execute more rapidly. The result is improved performance. A key RISC feature is that it allows developers to increase the register set and increase internal parallelism by increasing the number of parallel threads executed by the CPU and increasing the speed of the CPU’s executing instructions. ARM, or “Advanced RISC Machine” is a specific family of instruction set architecture that’s based on reduced instruction set architecture developed by Arm Ltd. Processors based on this architecture are common in smartphones, tablets, laptops, gaming consoles and desktops, as well as a growing number of other intelligent devices.
ARP
In networking we use models to represent how a computer can communicate. IP adresses work in the layer 3 of the OSI model. Thery are logical adresses for a router to know and be able to choose the best router to that network. Routers just know how to get to the Network, but they do not care to which computer in specific is the packet being delivered. Here is where switches make their appearance. Switches are layer 2 devices, which means they work with tha communication inside the LAN. They do not care about the IP address (multilayer or Layer 3 switches do care, because they are able to work in both layers). The MAC address is a unique 48-bit address that has your NIC. Layer 2 is the only layer divided in 2 sublayers (Logical Link Control and MAC). Because swithes work in the L2, they use MAC address to locate where to send a frame.
REMEMBER:
Switches only work inside LANs
Switches use MAC address to know where to send frames
Routers work connecting multiple networks
If they talk to you about pakcets it’s Layer 3 stuff and you are dealing with IPs and routers or multilayer switches
If they talk to you about frames it’s Layer 2 stuff and you are dealing with MAC addresses and Switches or bridges
ARP: Address Resolution Protocol
It is to finde the MAC address using the IP address
RARP: Reverse Address Resolution Protocol
It is to finde the IP address using the MAC address
Keep studying hard, and prepare very good in this essential topics to pass the N+
ATA
Advanced Technology Attachment
Advanced Technology Attachment (ATA) is a standard interface used for connecting storage devices such as hard drives and CD/DVD drives inside computers. It was also referred to as Integrated Drive Electronics (IDE) and Parallel ATA (PATA) before Serial ATA (SATA) emerged as the new standard.
ATM
ATM stands for Asynchronous Transfer Mode, and it’s a way of communicating over a SONET network. ATM didn’t use frames or packets, it used 53 byte cells. Every bit of data put onto an ATM network was 53 bytes in length.
