Difference Between Hub and Layer 2 Switch

A hub is a very simple device that does virtually no processing and simply forwards the packets it receives. It does not read or inspect the data contained in the packets. On the other hand, a layer 2 switch has the processing power to look at the packets to know the destination and the source.

1. What is the main difference between a hub and a switch?
2. Is hub a Layer 2?
3. What is the difference between a bridge and layer 2 switch?
4. What are the advantages of using a Layer 2 switch over a hub?
5. Why is switch better than hub?
6. Why use a hub over a switch?
7. Is bridge a Layer 2 device?
8. What is the difference between layer 2 and layer 3?
9. What does layer 2 switch mean?
10. What layer is router?
11. What layer is a switch?
12. What is bridge and switch?

What is the main difference between a hub and a switch?

Hub and Switch are both network connecting devices. Hub works at physical layer and is responsible to transmit the signal to port to respond where the signal was received whereas Switch enable connection setting and terminating based on need.

Is hub a Layer 2?

A hub works on the physical layer (Layer 1) of OSI model while Switch works on the data link layer (Layer 2). Switch is more efficient than the hub. A switch can join multiple computers within one LAN, and a hub just connects multiple Ethernet devices together as a single segment.

What is the difference between a bridge and layer 2 switch?

Bridge and switch both provide the same functionality but the switch does it with greater efficiency. A bridge connects smaller network segments to form a large network, and it also relays frame from one LAN to another LAN. On the other hand, the switch connects more network segments as compared to the bridges.

What are the advantages of using a Layer 2 switch over a hub?

What are two advantages of Layer 2 Ethernet switches over hubs? (Choose two.)

• decreasing the number of collision domains.
• filtering frames based on MAC addresses.
• allowing simultaneous frame transmissions.
• increasing the size of broadcast domains.
• increasing the maximum length of UTP cabling between devices.

Why is switch better than hub?

A switch is more intelligent than a hub. As a hub, a switch is the connection point for the computers (and other devices) in a network. However, a switch is more efficient at passing along traffic. ... If the destination address is not in the table, the switch sends the traffic to all the connected computers.

Why use a hub over a switch?

Switches and hubs are often used in the same network; the hubs extend the network by providing more ports, and the switches divide the network into smaller, less congested sections.

Is bridge a Layer 2 device?

A network bridge is a computer networking device that creates a single, aggregate network from multiple communication networks or network segments. ... In the OSI model, bridging is performed in the data link layer (layer 2).

What is the difference between layer 2 and layer 3?

A Layer 2 switch only works with MAC addresses and doesn't interact with any higher layer addresses, such as an IP. A Layer 3 switch, on the other hand, can also do static routing and dynamic routing, which includes IP and virtual local area network (VLAN) communications.

What does layer 2 switch mean?

Layer 2 switching (or Data Link layer switching) is the process of using devices' MAC addresses to decide where to forward frames. Switches and bridges are used for Layer 2 switching. They break up one large collision domain into multiple smaller ones. In a typical LAN, all hosts are connected to one central device.

What layer is router?

A router works at Layer 3 of the OSI model – the Network Layer. This is the layer that the IP protocol works at.

What layer is a switch?

A network switch is a device that operates at the Data Link layer of the OSI model—Layer 2.

What is bridge and switch?

A switch can handle many ports. A Bridge is a device that connects two LANs and controls data flow between them. A Switch is a networking device that learns which machine is connected to its port by using the device's IP Address. Bridges divide collision domain into two parts.