What Type of Network Device Keeps a Table of the Mac Addresses of the Devices Connected to It??

Chapter 15

Hubs are outdated technology, having been replaced by switches. Whereas, A switch is smarter and more efficient than a hub because it keeps a table of all the MAC addresses for devices connected to it.

Which Device Keeps a Table of all MAC Addresses in Order to Determine where Data should be Sent?

Switches need to keep track of the MAC addresses of all connected devices . Without the learning function, the switch would not know to which port the destination device is connected. At the center of the learning function is a part of the switchs memory. We refer to this memory location as the MAC Address Table.

What Type of Network Device Keeps Track of the MAC Address of the Devices Connected to It?

A switch will keep track of the pluggedin devices accessing the network by their Media Access Control addresses MAC addresses and will send received frames packets of data transmitted as a single unit to the designated port without causing lag on the network. A hub will share its bandwidth equally among all ports.

Which Network Device Would be Found in a Wiring Closet and is Used to Connect One Corporate Network Device to Another Device in a Different Location?

An Ethernet crossover cable is a type of twisted pair Ethernet cable used to connect computing devices together directly that would normally be connected via a network switch, Ethernet hub or router, such as directly connecting two personal computers via their network adapters.

What Two Standards have been Established for Wiring Twisted Pair Cabling and RJ-45 Connectors?

What is a Crossover Cable? There are two wiring standards used by RJ45 connectors, referred to as T568A and T568B.

What Type of Device do you Need if you Want to Connect Two Network Segments?

Routers are general-purpose devices that interconnect two or more heterogeneous networks. They are usually dedicated to special-purpose computers, with separate input and output network interfaces for each connected network.

Why are there Twists in the Wires that are Used for Network Cabling?

Twisted pairs are made up of two insulated copper wires that are twisted together. The twisting is done to help cancel exterior electromagnetic interference. Crosstalk interference can come from other pairs within a cable. Each type of twisted pair cable has bandwidth and data rate specifications.

MAC (Media Access Control)

In the OSI model , Internet Protocol operates at Layer 3, while the MAC protocol works at Layer 2. Media Access Control is able to support other networks besides TCP/IP, for this reason.

Which Layer do MAC Addresses Work On?

Residing in different layers in the OSI model
In the OSI model, the MAC sublayer of the datalink layer Layer 2 implements MAC addresses. Meanwhile, an IP address operates in the network layer Layer 3 of the model.

At which TCP IP Model Layer Would a MAC Address be Found?

MAC address is used at the data link layer of OSI/TCP/IP model. ARP Address Resolution Protocol is a protocol used to receive MAC address of a device.

How are MAC Addresses Used in TCP IP?

The IP address is used to transport data from one network to another network using the TCP/IP protocol. The MAC address is used to deliver the data to the right device on a network. This is what a MAC address is like.

Is a MAC Address Layer 2 or 3?

The MAC address is a layer 2 (data link) address. The layer 3 address is a logical address. It will pertain to a single protocol (such as IP, IPX, or Appletalk). The layer 2 address is a physical address.

Getting MAC Address From Various Sources

While most desktop computers have only one MAC address for the wired network card, most laptops should have two MAC addressesone for the wireless network card and one for the wired network card. It is important that both wired and wireless MAC addresses be recorded.

Does a Computer have more than One MAC Address?

Can a device have more than one MAC address? Yes. For each network interface in your device, there is a unique MAC address associated with it. So if your laptop has both an Ethernet port and WiFi builtin, you will see two MAC addresses in the system configuration.

Why do I have 3 MAC Addresses?

A computer has a unique MAC address for each network interface. For a laptop that means a different MAC for WiFi than Ethernet. The same also for a desktop computer that includes WiFi. If a computer has multiple Ethernet ports or a USB adapter for WiFi or Ethernet it would have more MAC addresses for each of them.

How Many MAC Addresses does a MacBook Have?

Both your MacBook's wireless and Ethernet network interfaces have 12-digit MAC addresses that help identify the computer's networking hardware on your network. These addresses can be handy for network troubleshooting or when you install new hardware such as a router.

What's a MAC Address and how do I Find It?

The MAC address is a 12 digit hexadecimal number that is most often displayed with a colon or hypen separating every two digits (an octet), making it easier to read. Example: A MAC address of 2c549188c9e3 is typically displayed as 2C:54:91:88:C9:E3 or 2c-54-91-88-c9-e3.

What is an Example of a MAC Address?

A MAC address is a 48-bit hexadecimal address. It's usually six sets of two digits or characters, separated by colons. An example MAC address would be 00:00:5e:00:53:af. Many network card and other hardware manufacturers use a unique sequence at the beginning of their products' MAC addresses.

Which One is a MAC Address?

Windows devices
To Find the MAC Address: Open a Command Prompt > type ipconfig /all and press Enter > The Physical Address is the MAC address.

What Makes up a MAC Address?

A MAC address consists of two parts. The Block ID is the first six characters of a MAC address. The Device ID is the remaining six characters. The Block ID is unique to the manufacturer.