General Definitions: WINDOWS Flashcards
What Branch of Information Technology are Systems Administrators in?
Infrastructure Support Branch
What is an URL ?
Uniform Resource Locator also known as a weblink
What is a Web Application?
IT IS A
• PROGRAM
• DESIGNED TO ACCOMPLISH A SPECIFIC TASK OR USE AND
• MUST BE INSTALLED ON AN OPERATING SYSTEM
What is a Web Browser?
It is a • computer application
• used to search or browse the internet
• such as Google Chrome, Internet Explorer, Safari, FireFox, Microsoft Edge, etc
Etc:
Pronounced “Itsy” Directory in LINUX & UNIX systems
What is the computer term(s) used for the USERNAME/PASSWORD?
Login credentials or authentication information
What is Data?
Data is information that is stored in a file or text that is stored in a file
WIFI
Wireless Fidelity
Uses Radiowaves to transmit data between different systems within a LAN
Uses Radiowaves to transmit data from mobile devices through router to the internet
A COMPUTER IS
A device that creates, stores, manages and processes data by receiving input which it processes and then delivers an output
Other computer Names
Personal Computer (PC); a box, a unit, or a Machine eg LINUX Machine,
What is a Network?
It is two or more computers or systems that share information and computer resources, exchange files and allow electronic communication,
The computers on a network may be linked through cables, telephone lines, radio waves, satellites, or infrared light beams.
What is a LAN?
It stands for Local Area Network. It is a group of networks that
- share information,
- share computer resources and
- communicate with one another and
that span a small geographic area
What is an APPLICATION?
It is a program designed to accomplish specific task(s) eg; Google Chrome – designed to browse internet, Word -word processor, VMware – build systems); It must be installed onto an Operating System
WINDOWS
It is an Operating system built by Microsoft
Windows Operating System
It is an operating system that uses JAVA and Visual basic, Easily compromised, virus-prone,
It is a More usable friendly, more compatible with other systems, companies pay a lot of money to secure these systems called system hardening
What is an Operating System?
It is the main software or program running on a computer or the first software or program that loads when you turn on a computer
What is Software?
It is the virtual, intangible part of a computer, eg. Operating system, files, folders, apps, etc
What is Hardware?
It is the physical or tangible part of a computer eg. Keyboard, mouse, CD,DVD ROM, monitor etc.
What is a Server?
It is a super computer that has extra processing power designed for business use,
It is a supercomputer that has different components and parts for business use, eg. Windows Server 2008 or 2019; Solaris or AIX
What does a PC Technician (Windows Desktop Support) do?
o Troubleshoots and Fixes computer related issues eg. Virus, software, performance issues)
o Fix computer software and hardware issues
What does a Windows Server or Domain Administrator do?
o Sets up Domain
o Sets up Active Directory (mainly for Microsoft)
o Sets up Server – Server Administration – build from scratch from installing operating system
o Troubleshoots and Fixes computer related issues eg. Virus, software, performance issues)
o Fix computer software and hardware issues
What is a DOMAIN?
It is a group of systems that are connected together that share common information (eg. Printer, folders, files, etc.)
What is a Systems Administrator?
It is an expert in different operating systems such as Windows, LINUX, UNIX, Microsoft Azure, AWS, DevOps, etc
What is a Systems Administrator?
It is an expert in different operating systems such as Windows, LINUX, UNIX, Microsoft Azure, AWS, DevOps, etc
What is UNIX?
It is a group of operating systems that have a similar kernel built by Bell Labs
What is a UNIX Kernel?
It is the core or heart of the UNIX operating system or foundation of the UNIX operating system. Built by Ken Thomson (Applications Developer) and Dennis Ritchie (C++ Language programmer) in 1969.
It is also Freeware – free software, and
It is Opensource – code used to build the kernel is open to the public;
It is secure, stable, No virus, good and agile
Name some UNIX Operating systems
Sun Microsystems which became ORACLE”s SOLARIS, IBM’s AIX, HP’s HP-UX; and Apple’s MAC-OS
What is INFORMATION TECHNOLOGY (IT)?
It is the use of technology (machines, software or networks) to create and manage data (information) ; data management business; manage a Network for data to flow
It is the use of technology to share information across systems
What is an IT Professional?
It is person who works as and is able to
a) build and manage systems,
b) store and secure and transfer data,
c) user access security
d) ensure data is always available, and
e) Backup creation or clustering
List 4 UNIX Flavors
- *SOLARIS – We will learn Solaris in Class – Owned by ORACLE (Sun Microsystems)
- *HP-UX – Owned by HP
- AIX– Owned by IBM
- MAC-OS– Owned by Apple
LIST 6 LINUX Flavors & Distributions
- *RHEL - We will learn RHEL in Class. Owned by Red Hat Company (vendor)
- *CENTOS - We will learn CENTOS in Class. Sponsored but not supported by Red Hat Company. Open to community. Freesource. Inspires innovation that helps Red Hat.
- *UBUNTU - We will learn UBUNTU in Class. A community sponsored project
- FEDORA – Community Sponsored
- ANDROID
- IOS – Owned by Apple (sells the Hardware)
What is LINUX?
A modified UNIX Kernel based operating system created by Linus Torvald from Helsinki to make UNIX more user friendly; Easier than UNIX
What is VMware?
It is software used to build virtual systems; Stands for Virtual Machine Ware
What is a hypervisor?
It Is a type of VMware Software
List 2 Types of Hypervisor
- Hosted Hypervisor
2. Baremetal Hypervisor
What is a Hosted Hypervisor?
It is an application type of Hypervisor; i.e. Must be installed on an Operating system eg Oracle Virtual Box
A hosted hypervisor is installed on a host computer, which already has an operating system installed. It runs as an application like other software on the computer. Most hosted hypervisors can manage and run multiple VMs at one time.
It requires you to install an operating system before deploying the hypervisor, meaning the hypervisor doesn’t have direct access to hardware resources. These kinds of hypervisors are often cheaper than bare-metal, so they’re well-suited for small data centers or test and development environments.
What is a Baremetal Hypervisor?
It is an OS Type of Hypervisor i,e. must be installed on a physical system eg. VMware Esxi.
Most companies use this one.
It is virtualization software that is installed on hardware directly. At its core, the hypervisor is the host or operating system.
It is structured to allow for the virtualization of underlying hardware components to function as if they have direct access to the hardware
What is cloud Computing?
It is storing and accessing data and programs over the Internet instead of your computer’s hard drive.
Cloud computing is the on-demand availability of computer system resources, especially data storage and computing power, without direct active management by the user. The term is generally used to describe data centers available to many users over the Internet.
Difficult to hack systems on a cloud, are hardened systems, safer
A Network is
Two or more computers that are linked in order to share resources, exchange files, or allow electronic communications. The computers on a network may be linked through cables, telephone lines, radio waves, satellites, or infrared light beams. Enables the movement of data.
A switch is
A device that connects systems in a Network together
A router is
A device that connect Networks together
A modem is
A device that is a PRIMITIVE ROUTER USED TO TRANSMIT DATA OVER PHONELINES ; UPDATED TO ROUTERS
AP
AP (Wireless Access Point)
ISP
Internet Service Provider
It is a company that provides internet to your network eg. Verizon Fios, Comcast. Comcast, etc
WAN
– Wide Area Network
b. It is a group of networks connected together sharing information spanning a wide geographical area (usually correspond to a company’s networks)
c. Combination of LANs to form WANs
d. Combination of LANs spanning a wide network
MAN
Metro or Metropolitan Area Network
e. It is a group of systems connected together sharing information spanning a metro area
f. It is a network spanning a metro area
g. METRO AREA: IT IS A GROUP OF NEIGHBORING STATES THAT DO BUSINESS TOGETHER DESIGNATED BY THE GOVERNMENT SUCH AS DC METRO (MD, DC, VA) NY METRO (NY, NJ, PA)
Troubleshooting:
If Router is not working, it could be issues with:
- IP Address
- Cable
- OS
An IP Address is
A number that is assigned by the DHCP to each system in a network so that systems can communicate with each other within a network
What is a Vmware Host?
It is a system that has a hypervisor installed on it that is used to host guest systems or virtual systems
What is a Networked System?
A Networked System is an operating system designed to primarily support workstations and personal computers on a local area network
What is a CRT?
Cathode Ray Tube - A machine (eg TV) that transmits electrons through cathode ray tube in order to display an image. It displays analog signal (Has Maximum Picture Resolution less than 720 p;)
What is a LED?
Light Emitting Diode – Image is displayed by variations in light emitted by diode as light hits it and projects images on screen, It has better picture quality and displays a digital signal. (Has Maximum Picture Resolution about 4000 p – High definition resolution)
What is a LCD?
Liquid Crystal Display – Image is displayed on the screen by the light emitted when fluorescent light hits the display screen and displays a digital signal. (Has Maximum Picture Resolution about 1080 p – High definition resolution)
What is a Blade Server?
A Blade Server is a server that is used in most large business settings that is a rectangular server with about 9 hard drives installed in it. It is usually stored in racks enabling greater processing power to handle large amounts of data needed by big businesses.
What is a Systems Engineer?
Systems Engineer
• Is able to design and build a network from scratch
• Is an expert in 2 or more operating system servers such as Windows, LINUX, or UNIX
• Is able to do all the tasks performed by a Systems Admin, Network Tech and PC Tech.
What is a Network Administrator?
Network Administrator:
• Is an expert in one operation system server as Windows, LINUX, or UNIX
• Is able to do all the tasks performed by a Network Tech and PC Tech.