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Objectives:

To understand the fundamentals of network topologies and modes of communication

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For any query about the assignment, contact at cs601@vu.edu.pk
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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keep it up

Ahmad

Here  are 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.

Answer:

 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).

 

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 

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 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 )

Question No 3:                                                                                                                           Marks 5     

 

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

 

  1. Walkie talkie(simplex)
  2. Telephone conversation(half)
  3. A person talking into microphone(full)
  4. Viber calling(half)
  5. TV broadcasting(simplex)

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 

For Ayesha(MCS)

Attachments:

thanx 4 sharinng

  1. What will be the line configuration between the (Multipoints).

Reason: Use Multipoint technology to connect your Bluetooth devices at the same time. For example, if you connect your two phones by Bluetooth, you can receive calls from both phones without having to disconnect and reconnect. Bluetooth, Wireless Local Area Network (WLAN), General Packet Radio Service (GPRS) and Universal

Mobile Telecommunications Service (UMTS) have all their own roles in the future of communication. Due to the limited range, Bluetooth technology seems

to be suitable for local communication purposes.

  1. What will be the relationship between the cell phones? (Peer to Peer )

In peer to peer model, there are two devices are involved like two cell phones. Devices share the link equally in peer to peer. Phones have generated the creation of several additional forms of peer-to-peer networks. In a peer-to-peer network that supports mobile users. In our mechanism nodes build content synopses of their data and adaptively disseminate them to the most appropriate nodes. Based on the content synopsis, a routing mechanism is being built to forward the queries to those nodes that have a high probability of providing the desired results. Our simulation results show that our approach is highly scalable and significantly improves resources usage by saving both bandwidth and processing power. Peer to peer is an approach to mobile networks where all mobiles share equivalent responsibility for processing data. Peer-to-peer communication differs from client-server networking, where certain devices have responsibility for providing or "serving" data and other devices consume or otherwise act as clients of those servers.

  1. Which type of communication will it be? (Local communication)

Bluetooth, Wireless Local Area Network (WLAN), General Packet Radio Service (GPRS) and Universal Mobile Telecommunications Service (UMTS) have all their own roles in the future of communication. Due to the limited range, Bluetooth technology seems to be suitable for local communication purposes. That’s why we use peer to peer technology locally.

  1. What will be the medium of communication? (Wireless)

 Reason: Wireless networks support so-called mobile connections between devices. Wi-Fi networks are pure peer to peer compared to those utilizing wireless routers as an intermediate device. Peer to peer communication is not Remote communication because it is use for locally in country even in a world.

thanks every one for making this discussion very informative ab8 assignment.

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