Question

7.
Which of the following statement is NOT true about topology:
Physical topology and Logical topology are the same for a single network.
b. Physical topology is the geometric representation of the links.
Logical topology and Physical topology may differ for as network.
d. Logical topology indicates the flow of a signal in a network.
C.​

Answer 1

1. Physical Topology :

Physical topology indicates arrangement of different elements of a network. It reflects physical layout of devices and cables to a form a connected network. It is concerned with essentials of network ignoring minute details like transfer of data and device type. The pattern of arrangement of nodes (computers) and network cables depends on ease of installation and setup of the network. It affects cost and bandwidth capacity based on solution of devices. It takes into account placement of nodes and distance between them. Devices can be arranged to form a ring (Ring Topology) or linearly connected in a line called Bus Topology.

2. Logical Topology :

Logical Topology reflects arrangement of devices and their communication. It is the transmission of data over physical topology. It is independent of physical topology, irrespective of arrangements of nodes. It is concerned with intricate details of network like type of devices (switches, routers) chosen and their quality, which affect rate and speed of data packets delivery. The logical topology ensures optimal flow control that can be regulated within network.

The data can either flow in a linear pattern called Logical bus or in form of a circle Logical ring.

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Answer 2

Answer:

Option - Physical topology and logical topology are the same for a single network is not true about topology.

Explanation:

Topology:

• The simplest approach to categorize topologies in networking is into two types.
• The first is known as physical topology, while the second is known as logical topology.
• Physical topology explains how the network is structured, whereas logical topology describes the communication method used by devices on the LAN to transmit data.

Physical Topology:

• Physical topology can be thought of as the arrangement of the network medium that demonstrates how the connectedness of the network's devices.
• The geometric shape that the connected devices together make is specified.
• The type of devices, the method for communicating with other devices in the network, and the method by which data is transported from one device to another are not covered in great depth by the physical topology.
• As a result, it provides only the fundamental information about networks and network devices as a whole, excluding higher level information such as device type, addressing schemes, connection, and so forth.

Logical Topology:

• Instead of emphasizing the physical configuration of the channel that data takes, logical topology places more attention on how data is conveyed between network nodes.

The fact that these topologies are independent of each other in terms of a network, regardless of its size and shape, is a significant truth about them.

Hence, physical topology and logical topology are the same for a single network is an incorrect statement.

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