Answer each of the following: 1. () What is a network? (b) What are the elements
ID: 3725787 • Letter: A
Question
Answer each of the following: 1. () What is a network? (b) What are the elements and their functions of a typical network? Explain each one. (c) What devices are used in layers 1-3? (d) What is a message called in layer 2? Layer 3 in (a) What is a signal? (b) What is propagation? (c) What is a transceiver? 2. (a) Describe the traditional Peer-to-Peer network model. What are the advantages and disadvantages? What is a common way to share resources? (b) Discuss the basic elements common to all Client/Server Networks and the common network topologies including the advantages and disadvantages. 3. Discuss the following services: a. Access Services b. Communications Services c. Management Services (a) Describe the OSI Reference Model-the 7 layers and their functions. Draw a figure and label each layer. (b) Describe the hybrid model (from the Xerox copy/on BlackBoard). Explain the standards used in TCP/IP and Hybrid Models. 4.Explanation / Answer
Solution:
The first question is done as per Chegg guidelines, please repost others.
a)
Network: A computer network is a digital telecommunication network which is a collection of nodes and their connectors in which data and resources are exchanged in order to communicate. The nodes on a computer network may be connected through cables, telephone lines, radio waves, satellites, or infrared light beams.
b)
The elements of a typical Network are given below:
Node or computer:
This is a device which needs to be connected to the network in order to facilitate the communication through the data and information.
Router:
Routers are the one who connects the node and the network in the outer space.
Bridge:
Routers are also connected with the bridges which are connected to the main network
similarly, some more elements are Switches, hubs, and modems.
c)
The first three layers are the Physical layer, Data link layer, and Network layer and the devices used in it are
Switch, router, cable, modem, hub, etc..
d)
In data link layer it is known as the frame.
and in Network layer which is layer-3 it is known as the packet.
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