QUIZ 7

1. Discuss the components required for successful communications.

Sender, beneficiary, and a atmosphere. That's in the order of the most chief definition of the components of computer network.

2. Identify various sending and receiving devices.

Sending device initiates the transmission of data, instructions, and information while a receiving device accepts the items transmitted.

·        Microcomputers

·        Minicomputers

·        Mainframes

·        Internet appliances and web enabled handheld computers

3. Describe uses of computer communications.

 4. List advantages of using a network.

<!--[if !supportLists]-->·                               <!--[endif]-->share software

<!--[if !supportLists]-->·                               <!--[endif]-->share information with others on networks

<!--[if !supportLists]-->·                               <!--[endif]-->share peripherals

<!--[if !supportLists]-->·                               <!--[endif]-->speed of sharing software and information files

<!--[if !supportLists]-->·                               <!--[endif]-->cheaper than buying individual software and hardware for each standalone especially if for a school, network software often offers deals for amount being purchased

<!--[if !supportLists]-->·                               <!--[endif]-->security, files can be copy inhibit mode

<!--[if !supportLists]-->·                               <!--[endif]-->centralized software management- software being loaded onto one computer but also this loads software to entire network at one time

<!--[if !supportLists]-->·                               <!--[endif]-->electronic mail(e-mail) between network users, ideal for office memos

<!--[if !supportLists]-->·                               <!--[endif]-->flexible access- access you files from any computer on the network unlike standalone which would mean only being able to access your data from the one computer you uploaded data onto

5. Differentiate among client/server, peer-to-peer, and P2P networks.

Client/server-describes the relationship between two computer programs in which one program, the client, makes a service request from another program, the server, which fulfills the request.

Peer-to-peer (P2P)-computing or networking is a distributed application architecture that partitions tasks or workloads between peers. Peers are equally privileged, equipotent participants in the application. They are said to form a peer-to-peer network of nodes.

6. Describe the various network communications standards.

7. Explain the purpose of communications software.
Communication software is used to provide remote access to systems and is also used to exchange messages in text, audio and video format for the purpose of communication. This software sends and receives data over telephone lines through modems. The communication software allows computers in different geographical regions to communicate with each other through terminal emulators, file transfer programs, chat and instant messaging programs.

8. Describe various types of lines for communications over the telephone network.

9. Describe commonly used communications devices.

Radios are communication systems that send and/or receive electromagnetic waves and consist of a transmitter, receiver, and antenna. Pagers are electronic communications devices that are used to notify or alert a user. Communication received by pagers may be numeric or alphanumeric, depending on the model and complexity of the device.

Other types of communication devices include navigation systems, such as global positioning systems (GPS) instruments and radar systems. GPS communication devices receive satellite communications and use it to provide position information. Radar communication devices use synchronized transmitters and receivers to send radio waves and detect their reflections from objects, surfaces and sub-surface structures.

10. Discuss different ways to set up a home network.

11. Identify various physical and wireless transmission media.

For physical transmission Media there are:

<!--[if !supportLists]-->1.   <!--[endif]-->Twisted-Pair Cable

<!--[if !supportLists]-->2.   <!--[endif]-->Coaxial Cable

<!--[if !supportLists]-->3.   <!--[endif]-->Fiber-Optic Cable

For wireless trasmission media there are:

i. Broadcast Radio
ii. Cellular Radio
iii. Microwaves
iv. Communication Satellite