Computer networks multiple choice questions and answers pdf is a revision guide with a collection of trivia questions to fun quiz questions and answers pdf on topics. Transmission media umsl mathematics and computer science. Some examples of transmission media include twistedpair wire. Computer networking lesson 2 transmission media youtube. Computer networks and internets, 5e chapter 7 transmission media. Transmission media is the material pathway that connects computers, different kinds of devices and people on a network. There are two types of transmission media used in communications. Media using light energy and optical fibers three forms of media use light energy to carry information. Data is transmitted normally through electrical or electromagnetic signals.
Venturing beyond the organisations premises in figure 3 see section 3. Computer networks and internets, 5e chapter 7 transmission media modified from the lecture slides of lami kaya. Magnetic media is a common way to transport data quickly. Transmission mediums in computer networks kencorner.
Wireless communication involves no physical link established between two or more devices, communicating wirelessly. Practice these mcq questions and answers for preparation of various competitive and entrance exams. Computer networks by andrew s tanenbaum 4th edn pdf. Transmission media are necessary to form a computer network, as they are the physical paths between a transmitter and a receiver.
One of the most convenient way to transfer data from one computer to another, even before the birth of networking, was to save it on some storage media and transfer physical from one station to another. Longhaul trunksincreasingly common in telephone network sprint ads. Transmission media uses cables or electromagnetic signals to transmit data. In this particular topic you have learned the two the two broad categories of. Department of computer science assam university, silchar. We use different types of cables or waves to transmit data. These redundant bits are added by the sender and removed by the receiver. Unboundedunguided transmission media in computer networks. Computer networks for manufacturing transmission medium.
Factors to be considered while selecting a transmission medium. Twisted pair is a physical media made up of a pair of cables twisted with each other. Data is transmitted through the electromagnetic signals. Computers and telecommunication devices use signals to represent data. Introduction hierarchy of computers in manufacturing levels in the computer hierarchy benefits of the hierarchical structure local area networks network topologies access methods for local area networks the transmission line types of transmission media wan wireless lan introduction the functional configuration of the. An unguided transmission transmits the electromagnetic waves without using any physical medium.
Data representation data representation is defined as the methods used to represent information in computers. The main functionality of the transmission media is to carry the information in the form of bits through lan local area network. Dec 05, 2014 description transmission media are located below the physical layer computers use signals to represent data. Dhotre pdf computer networks and transmission mediatypes of networks, topologies, centralized and distributed networks, lan, wan, man, broadcast vs point to point. Some examples of transmission media include twistedpair wire, coaxial cable, fiberoptic cable, and radio waves. A directory of objective type questions covering all the computer science subjects. A transmission medium could be a guided hardwired medium e. The transmission media that are used to convey information can be classi fied as guided or. Transmission media is broadly classified into two groups. Unguided unbounded wireless transmission media in computer. Due to the variety of transmission media and network wiring methods, selecting the most appropriate media can be confusing what is the optimal costeffective solution. Random electromagnetic radiation, called noise, permeates the. Networking multiple choice questions and answerstransmission. Explain the characteristics of the popular guided transmission media.
The transmission media is nothing but the physical media over which communication takes place in computer networks. Data transmission modes the direction of data transmission there are 3 types of data transmission modes. For guided transmission media, the transmission capacity, in terms of either data rate or bandwidth, depends critically on the distance and on whether the medium is pointtopoint or multipoint. A signal travelling along any of these media is directed and contained by the physical limits of the medium. Transmission media is a communication channel that carries the information from the sender to the receiver. In the traditional cable tv network, the entire network used coaxial cable. It contains well written, well thought and well explained computer science and. To exchange bits of data for laptop, notebook, smart watch, without wires, you need wireless communication. The transmission medium is a physical transmission path between two devices. When choosing the transmission media, what are the. Mar 25, 2017 computer networking lesson 2 transmission media by suresh khanal vvv more below vvv this is video series is for the candidates of computer operator and data entry supervisors to. Most of telephone and network wiring in homes and offices is tp.
In these computer networks notes pdf, we will study the concepts of data communication and computer networks which comprises of the study of the standard models for the layered protocol architecture to communicate between autonomous. As more media is needed for this, the expense is more and the data transmission speed is high. But that is impractical for anything but an extremely small network. Radio waves are the electromagnetic waves that are transmitted in all the directions of free space. Characteristics and quality of data transmission are determined by medium and signal. Therefore it is also known as wireless transmission. In this section of data communication and networking transmission media mcq multiple choice based short questions and answers,it cover the below lists of topic, all the multiple choice question and answer mcqs have been compiled from the books of data communication and networking by the well known author behrouz forouzan. It is defined as the physical medium through which the signals are transmitted.
The main categories of transmission media used in data communications networks are listed below please note that wireless transmission media will be dealt with elsewhere. Apply the media selection criteria of cost, speed, distance and expandability, environment, and security to various media in a particular application. When an antenna is attached to electrical circuit of a computer or wireless. Transmission media is broadly classified into the following types. Cable tvs and analog television networks widely use coaxial cables. The first layer physical layer of communication networks osi seven layer model is dedicated to the transmission media, we will study the osi model later. Introduction hierarchy of computers in manufacturing levels in the computer hierarchy benefits of the hierarchical structure local area networks network topologies access methods for local area networks the transmission line types of transmission media wan wireless lan introduction the functional configuration of the integrated computer system in a.
Buses and networks are designed to allow communication to occur between individual devices that are interconnected. Chapter 9 looks at local area networks and their applications. Topics in our studying in our computer networks notes pdf. Unbounded unguided transmission media in computer networks is wireless transmission. Computer networks pdf notes free download cn notes. Dec 03, 2019 this is the mcq in transmission media from book the data communications and networking 4th edition by behrouz a. Guided media guided media, which are those that provide a. In general, networks use combinations of media types. Transmission mode means transferring of data between two devices.
Transmission media makes it possible to transmit electronic signals from one computer to another. An ebook reader can be a software application for use on a computer such as microsofts free reader application, or a booksized. Wireless signals are spread over in the air and are received and interpreted by appropriate antennas. In simplex mode, the communication is unidirectional, as on a oneway street. Data communication transmission and computer networks. Transmission media mcq data communication and networking. An electromagnetic signal is series of electromagnetic energy pulses at. Transmission modes in computer networks simplex, half. The cables such as twisted pair, coaxial, etc are of no use for wireless transmission. In data communication terminology, a transmission medium is a physical path between. The first layer physical layer of communication networks the osi seven layer model is dedicated to the transmission media. Types of transmission media in data communication terminology, a transmission medium is a physical path between the transmitter and the receiver i. Each type of transmission media varies in its characteristics, that makes it suitable for a specific type of service. Guided media guided media, which are those that provide a conduit from one device to another, include twistedpair cable, coaxial cable, and fiberoptic cable.
For longdistance applications, twisted pair can be used at data rates of 4 mbps or more. In data communication terminology, a transmission medium is a physical path between the transmitter and the receiver i. Transmission media operate at layer 1 of the osi model. Microwave transmission is used in environments where installing physical transmission media is difficult or impossible and where lineofsight transmission is available. It is also referred to as wired or bounded transmission media.
Boundedguided transmission media in computer networks. Transmission mediums in computer networks studytonight. Transmission media transmission medium physical path between transmitter and receiver may be guided wired or unguided wireless communication achieved by using em waves characteristics and quality of data transmission dependent on characteristics of medium and signal guided medium medium is more important in setting transmission. Spectral response computer selected glass filters are designed to. Transmission media transmission medium physical path. Here more than ten terms are there so i am going to explain five terms. They encompass the physical entity and describe the types of highways on which voice and data can travel. Introduction to computer networks and data communications learning objectives define the basic terminology of computer networks recognize the individual components of the big picture of computer networks outline the basic network configurations cite the reasons for using a network model and how those reasons apply to current network systems.
Three forms of media use light energy to carry information. In this tutorial we will learn about bounded transmission medium in details. Pdf transmission media are the physical pathways guided or unguided that connect computers, other devices, and people on a network. Computers and telecommunication devices use signals to. Introduction to computer networks and data communications. Computer networks mcqs by arshad iqbal overdrive rakuten. Bound transmission media are the cables that are tangible or have physical existence and are limited by the physical geography. This is the mcq in transmission media from book the data communications and networking 4th edition by behrouz a. The transmission medium is the physical path by which a message travels from sender to receiver. Dec 08, 2010 for guided transmission media, the transmission capacity, in terms of either data rate or bandwidth, depends critically on the distance and on whether the medium is pointtopoint or multipoint. Microwaves, due to their unidirectional properties, are very useful when unicast onetoone communication is needed between the sender and the receiver. Mar 25, 2018 transmission mediums in computer networks is broadly classified into two groups wired or guided media or bound transmission media.
To be able to detect or correct errors, we need to send some extra bits with our data. Signals are transmitted in form of electromagnetic energy. These could be cable or lineofsight links such as microwave or satellite. Transmission capacity bandwidth and data rate depends on distance and type of network pointtopoint or multipoint. They are used in cellular phones, satellite networks and wireless lans. Models of transmission media for a library network. In this particular topic you have learned the two the two broad categories of bandwidth. Transmission media is a pathway that carries the information from sender to receiver.
In unguided media, air is the media through which the electromagnetic energy can flow easily. Learn about computer network transmission cables and media. Transmission medium an overview sciencedirect topics. Pointtopoint transmission characteristics of guided media. Pdf models of transmission media for a library network.
Transmission media are the physical pathways guided or unguided that connect computers, other devices, and people on a network. It would be convenient to construct a network of only one medium. Later, however, cable tv providers replaced most of the media with fiberoptic cable. Popular bound transmission media in use are twisted pair cable, coaxial cable and fiber optical cable. Transmission mediums in computer networks is broadly classified into two groups wired or guided media or bound transmission media. Cable tv networks see chapter 9 also use coaxial cables.
Utp utp or unshielded twisted pair cable is used on ethernet 10baset and can also be used with token ring. The oldest and still most common transmission medium. In these computer networks notes pdf, we will study the concepts of data communication and computer networks which comprises of the study of the standard models for the layered protocol architecture to communicate between autonomous computers in a. Optical fibers infrared transmission pointtopoint lasers optical fiber or fibre is most important and widely used each fiber consists of a thin strand of glass or transparent plastic encased in a plastic cover. This is suitable for short distance data transmission. Popular bound transmission media in use are twisted pair cable, coaxial cable.
It can be compared to a superhighway carrying lots of information. Computer networks and internets, 5e chapter 7 transmission. Twisted pair is much less expensive than the other commonly used guided transmission media coaxial cable, optical fiber and is easier to work with. To understand the wiring used in computer networks three facts must be understood. Each of chapters 28 describes one of the seven layers of the osi model in the context of wide area data networks. Transmission modes in computer networks simplex, halfduplex. Multiple choice questions on networking topic transmission media. Characteristics and quality of data transmission are determined. A twisted pair cable is cheap as compared to other transmission media. Transmission medium is the means through which we send our data from one place to another. For example, microwave transmission is used in wideopen areas such as deserts or lakes. Bus topology the bus topology consists of a single cable that runs to every workstation. It also introduces the osi reference model, upon which later chapters are based. In this lesson, lets learn the types of transmission media and.