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Objectives:

To understand the fundamentals of network topologies and modes of communication

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Assignment

Question No 1: Marks 10

Q1.Suppose data is being transferred between two cell phones via blue tooth. You are required to answer the following questions with proper reasoning:

1. What will be the line configuration between them? (Point to point or Multipoint).
2. What will be the relationship between the cell phones? (Peer to Peer or Primary Secondary)
3. Which type of communication will it be? (Local or Remote communication)
4. What will be the medium of communication? (Wireless or Wired)

Question No 2: Marks 5

Q2. Suppose computer A is connected to another computer B by a passive hub at home. You are required to mention the type (LAN, MAN or WAN) of this computer network? Support your answer with reason.

Question No 3: Marks 5

Q3. Identify the following transmission modes as simplex, half duplex or full duplex.

a. Walkie talkie
b. Telephone conversation
c. A person talking into microphone
d. Viber calling
e. TV broadcasting

BEST OF LUCK

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plz explain 3rd point.how?

Question No 1: Marks 10

Suppose data is being transferred between two cell phones via blue tooth. You are required to answer the following questions with proper reasoning:

What will be the line configuration between them? (Point to point or Multipoint).
What will be the relationship between the cell phones? (Peer to Peer or Primary Secondary)
Which type of communication will it be? (Local or Remote communication)
What will be the medium of communication? (Wireless or Wired)

Answers:

What will be the line configuration between them? (  Multipoint).
What will be the relationship between the cell phones? (Peer to Peer )
Which type of communication will it be? (Local communication)
What will be the medium of communication? (Wireless )

1: point to point

There are two possible line configurations.
1. Point-to-Point.
2. Multipoint.
Point-to-Point

A Point to Point Line Configuration Provide dedicated link between two devices use actual length of wire or cable to connect the two end including microwave & satellite link. Infrared remote control & tvs remote control.
The entire capacity of the channel is reserved for transmission between those two devices. Most point-to-point line configurations use an actual length of wire or cable to connect the two ends, but other options, such as microwave or satellite links, are also possible.
Point to point network topology is considered to be one of the easiest and most conventional network topologies. It is also the simplest to establish and understand. To visualize, one can consider point to point network topology as two phones connected end to end for a two way communication

Multipoint Configuration

Multipoint Configuration also known as Multidrop line configuration one or more than two specific devices share a single link capacity of the channel is shared.

More than two devices share the Link that is the capacity of the channel is shared now. With shared capacity, there can be two possibilities in a Multipoint Line Config:
Spatial Sharing: If several devices can share the link simultaneously, its called Spatially shared line configuration
Temporal (Time) Sharing: If users must take turns using the link , then its called Temporally shared or Time Shared Line Configuration

Question No 2: Marks 5

Suppose computer A is connected to another computer B by a passive hub at home. You are required to mention the type (LAN, MAN or WAN) of this computer network? Support your answer with reason.

A common connection point for devices in a network. Hubs are commonly used to connect segments of a LAN. A hub contains multiple ports. When a packet arrives at one port, it is copied to the other ports so that all segments of the LAN can see all packets.

A passive hub serves simply as a conduit for the data, enabling it to go from one device (or segment) to another. So-called intelligent hubs include additional features that enables an administrator to monitor the traffic passing through the hub and to configure each port in the hub. Intelligent hubs are also called manageable hubs.
A third type of hub, called a switching hub, actually reads the destination address of each packet and then forwards the packet to the correct port.

So in SHort LAN is the network which contain a passive hub to connect computers 

Point to Point Line Configuration Provide dedicated link between two devices use actual length of wire or cable to connect the two end including microwave & satellite link. Infrared remote control & tvs remote control.
The entire capacity of the channel is reserved for transmission  between those two devices. Most point-to-point line configurations use an actual length of wire or cable to connect the two ends, but other options, such as microwave or satellite links, are also possible.

Point to point network topology is considered to be one of the easiest and most conventional network topologies. It is also the simplest to establish and understand. To visualize, one can consider point to point network topology as two phones connected end to end for a two way communication

Multipoint Configuration also known as Multidrop line configurationone or more than two   specific devices share a single link capacity of the channel is shared.

More than two devices share the Link that is the capacity of the channel is shared now. With shared capacity, there can be two possibilities in a Multipoint Line Config:

  • Spatial Sharing: If several devices can share the link simultaneously, its called Spatially shared line configuration
  • Temporal (Time) Sharing: If users must take turns using the link , then its called Temporally shared or Time Shared Line Configuration

Get ready guys,

here is ur answers,

  1. What will be the line configuration between them = Point to point
  2. What will be the relationship between the cell phones = Peer to Peer
  3. Which type of communication will it be = Local
  4. What will be the medium of communication = Wireless

Suppose computer A is connected to another computer B by a passive hub at home. You are required to mention the type (LAN, MAN or WAN) of this computer network? Support your answer with reason.

Solution:

hmmm, this type of network is called Local Area Network, because if some entities are directly or indirectly connected with each others by a passive hub, especially in a same building then it will be called Local Area Network(LAN). ab baqi comments khud kar lein, thank you

  1. Walkie talkie = Half Duplex
  2. Telephone conversation = Full Duplex
  3. A person talking into microphone = Simplex
  4. Viber calling = Full Duplex
  5. TV broadcasting = Simplex

Simplex
Data in a simplex channel is always one way. Simplex channels are not often used because it is not possible to send back error or control signals to the transmit end.

Simplex channel It's like a one way street. An example of simplex is Television, or Radio. The simplex channel also corresponds directly

Half Duplex
A half-duplex channel can send and receive, but not at the same time. It's like a one-lane bridge where two way traffic must give way in order to cross. Only one end transmits at a time, the other end receives. 

Full Duplex
Data can travel in both directions simultaneously. There is no need to switch from transmit to receive mode like in half duplex. Its like a two lane bridge on a two-lane highway. Have you ever watched these television talk shows where the host has a number of people on the show, and they all try to talk at once. 

thanks Ahmad bhai

nice job

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