Networking Quiz Topology

Network Topology

is the arrangement with which computer systems or network devices are connected to each other. Or it is the arrangement of a network which comprises of nodes and connecting lines via sender and receiver.

Physical

➢ Describes the way in which a network is physically laid out.

➢ Refers to the actual arrangement of network nodes and links.

Logical

➢ Describes how the data actually flow through the network.

Point-to-point

networks contains exactly two hosts such as computer, switches, routers, or servers connected back to back using a single piece of cable. Often, the receiving end of one host is connected to sending end of the other and vice versa.

Bus topology

is a network type in which every computer and network device is connected to single cable (sometimes called a backbone or segment).

Linear Bus topology

When the bus topology has exactly two endpoints, then it is called

Terminator

- is an electrical resistor that absorbs the signal when it reaches the end of the network. The data is sent in only one direction and as soon as it reaches the extreme end, the terminator removes the data from the line.

Ring Topology

 Each networked workstation had two connections: one to each of its nearest neighbors.

 A number of repeaters are used

 When one host tries to communicate or send message to a host which is not adjacent to it, the data travels through all intermediate hosts.

 Data is transferred in a sequential (unidirectional) manner that is bit by bit. Data transmitted, has to pass through each node of the network, till the destination node.

 Sending and receiving of data takes place by the help of TOKEN  To connect one more host in the existing structure, the administrator may need only one more extra cable.

Token Passing

 A small data frame known as a token is transmitted around the ring from device to device.

 This token then passes to next node, which checks if the signal is intended to it

➢ If yes, it receives it and passes the empty to into the network

➢ otherwise passes token along with the data to next node

Dual Ring Topology

• Type of ring topology that consist of two primary and secondary rings.

• The secondary ring is redundant. It is used as a backup in case the primary ring fails.

• In these configurations, data moves in opposite directions (bidirectional) around the rings.

Star Topology

• All the devices are connected to a central device called hub device, using a point-to-point connection.

• Each networked device in BLANK topology can access the media independently.

• Every node has its own dedicated connection to the hub.

• Data passes through hub before reaching destination.

Mesh Topology

 Every device is connected with another via dedicated channels. These channels are known as links.

 This topology has hosts in point-to-point connection with every other host

Routing

- is where nodes use routing logic to work out the shortest distance to the packet’s destination.

Flooding

- data is sent to all nodes within the network.

Partial Mesh Topology

most nodes are interconnected but there are a few which are only connected to two or three other nodes. This topology exists where we need to provide reliability to some hosts out of all.

Full Mesh Topology

All hosts have a point-to-point connection to every other host in the network. It provides the most reliable network structure among all network topologies.

Tree Topology

 This is the most common form of network topology in use presently. This topology imitates as extended Star topology and inherits properties of Bus topology also known as a star bus topology.

 Also known as Hierarchical Topology, it connects multiple star topologies to other star topology network.

 In this network, the signal from transmitting device first reaches the centralized device then the signals pass through every node in bus network.

Hybrid Topology

A network structure whose design contains more than one topology is said to be BLANK. BLANK inherits merits and demerits of all the incorporating topologies.

Hybrid topology

The combination of various different topologies is known as BLANK. A BLANKy is a connection between different links and nodes to transfer the data.

Reliable:

If a fault occurs in any part of the network will not affect the functioning of the rest of the network.

Scalable:

Size of the network can be easily expanded by adding new devices without affecting the functionality of the existing network.

Flexible:

This topology is very flexible as it can be designed according to the requirements of the organization.

Effective:

Hybrid topology is very effective as it can be designed in such a way that the strength of the network is maximized and weakness of the network is minimized.

Complex design:

The major drawback of the Hybrid topology is the design of the Hybrid network. It is very difficult to design the architecture of the Hybrid network.

Costly Hub:

The Hubs used in the Hybrid topology are very expensive as these hubs are different from usual Hubs used in other topologies.

Costly infrastructure:

The infrastructure cost is very high as a hybrid network requires a lot of cabling, network devices, etc.

Network topology

is fundamental to network functionality and efficiency, influencing performance, reliability, scalability, cost, security, and ease of management. The right choice of topology, whether traditional or a hybrid, is crucial for meeting specific organizational needs.