Question: What Is The Difference Between A Hub And A Layer 2 Switch?

CAN Layer 2 switch do routing?

– A Layer 2 switch can only switch packets from one port to another, where as a Layer 3 switch is capable of both switching as well as routing.

Well, routing is not possible in Layer 2 switching, which means devices can communicate within the same network..

Is a hub a Layer 2 device?

Hubs are layer 1 devices,Hubs are just splitters. It simply receives frames in the ingress port and sends it out to all other ports. … They are basically bit spitters which send out the received packets to all connected devices on the hub without using any layer 2 logic (MAC addresses).

Which switching method drops frames that fail the FCS check?

Which switching method drops frames that fail the FCS check? Explanation: The FCS check is used with store-and-forward switching to drop any frame with a FCS that does not match the FCS calculation that is made by a switch.

What is a Layer 2 switch?

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. … Switches have more ports than bridges, can inspect incoming traffic and make forwarding decisions accordingly.

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. It records the addresses of the computers connected to it in a table.

What are the three layers of the switch Hierarchical Design Model Choose three group of answer choices?

What are the three layers of the switch hierarchical design model? (Choose three.) link.enterprise.access.core.

What layer is Hub?

physical layerA hub works at the physical layer (layer 1) of the OSI model. A repeater hub also participates in collision detection, forwarding a jam signal to all ports if it detects a collision.

What are two reasons a network administrator would segment a network with a layer 2 switch?

What are two reasons a network administrator would segment a network with a Layer 2 switch? (Choose two.)to create fewer collision enhance user create more broadcast eliminate virtual isolate traffic between segments.More items…

Can I use a router as a hub?

By simply running an Ethernet cable between your old router to your current one (run a wire from one of the available LAN ports on your active router to the WAN-in LAN ports on the old router), you can repurpose it as a network hub/switch.

Can Layer 3 switch Do NAT?

From a software perspective, layer 3 switches are not capable of the extra services that routers typically provide, such as NAT and NetFlow.

What is the significant difference between a hub and a Layer 2 LAN switch?

15. What is the significant difference between a hub and a Layer 2 LAN switch? A hub divides collision domains, and a switch divides broadcast domains. Each port of a hub is a collision domain, and each port of a switch is a broadcast domain.

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

Each networked device connected to a switch can be identified using a MAC address, allowing the switch to regulate the flow of traffic. This maximizes security and efficiency of the network. Because of these features, a switch is often considered more “intelligent” than a network hub.

What are the two methods that a wireless NIC can use to discover an AP choose two?

Explanation: Two methods can be used by a wireless device to discover and register with an access point: passive mode and active mode. In passive mode, the AP sends a broadcast beacon frame that contains the SSID and other wireless settings.

What layer is router?

Network-Control LayerRouters operate on the third layer of the OSI Model, the Network-Control Layer. Rather than passing packets based on the Media Access Control (MAC) Layer addresses (as bridges do), a router examines the packet’s data structure and determines whether or not to forward it.

Should I use a hub or switch?

In a small network, where there are lesser users or devices, a hub can easily cope with the network traffic and is a cheaper option for connecting devices on a network. When the network gets larger, with about 50 users, using a switch is a better option to cut down on the amount of unnecessary traffic.

Why are hubs still used?

The purpose of a hub is to form a single network segment on which all devices can communicate directly with each other. Until the early 2000s, Ethernet hubs were widely used for home networking due to their simplicity and low cost. While broadband routers have replaced them in homes, hubs still serve a useful purpose.

How does a Layer 2 switch differ from a router?

Q: How does a layer-2 switch differ from a router? A: A layer-2 switch operates at the data link layer. Routers operate at the network layer.

Which impact does adding a layer 2 switch have on a network?

Explanation: Adding a Layer 2 switch to a network increases the number of collision domains and increases the size of the broadcast domain. Layer 2 switches do not decrease the amount of broadcast traffic, do not increase the amount of network collisions and do not increase the number of dropped frames.