Network Security Quiz. You probably already know that network security is important, but did you know that it’s also a very complex topic? Why do we need to take the Network Security Quiz? If you want to get started learning about network security, then read these tips.
The Network Security Quiz is not too hard, but it can be very confusing to people who lack a basic understanding of how networks work. We start this article by explaining the basics of networks, and we emphasize the most important concepts that are important for taking the Network Security Quiz.
If you already know the basics of computers and networks, then you should read this short excerpt from a network security book:
“The network security industry is growing and becoming more complex. In order to become a network security professional, you should take the network security quiz. However, if you want to get started in network security quickly, then you should read this book: Network Security For Dummies. This book describes the most important concepts about network security in an easy-to-understand way.”
Network Security Quiz: Basics Of Computers And Networks
Computers and networks are used by millions of people every day. If we want to understand how they work, then first we should understand how computers work. So let’s review the basics of computers and networks, starting with computers:
Computers are devices that process data.
Computers have hardware and software components:
The hardware is the physical part of a computer that processes data using electrical signals. The software is the part of a computer that controls what it does (that is, how it processes data). We also say that a computer has an operating system. Examples of computer operating systems include Windows, Linux, Unix, etc.
The main goal of an operating system is to control the hardware and software components of a computer so its users can use it easily. It does this by organizing the hardware and software components into a hierarchy.
Hierarchy
Users interact with this hierarchy when they use a computer (for example, when they start an application). Every device connected to a computer is called a peripheral. For example, printers, scanners, keyboards, monitors, etc., are all peripheral devices. Most peripherals have special software inside them that allows them to communicate with other computers (that is, they have their own protocols ). For example, your printer has its own protocol (called “printer protocol”) that allows your printer to print information on paper.
Protocol
A protocol is simply another name for a set of rules used by devices in order to communicate with each other. There are many types of protocols, but all of them have a common purpose: they allow devices to communicate with each other. For example, the protocol used by your printer allows your computer to ask your printer to print a document. However, it doesn’t allow your computer to use your printer like a hard disk.
If you want to use your printer like a hard disk, then you will need another protocol (called “printer-disk protocol”). The many protocols used by computers and peripherals are part of what we call the OSI (Open Systems Interconnection) model.
OSI model
The OSI model is a collection of protocols that allows different computers (even from different companies) to communicate with each other using their own protocols. For example, if you are using Windows, then you are able to print information on your printer using a protocol called LPR (Line Printer Remote). This protocol is part of the OSI model.
Computer networks are groups of computers that communicate with each other. There are many types of computer networks: LANs, WANs, etc. In order to communicate with each other, the computers in these networks must use some type of communication protocol.