Network Devices

the central connecting point of a physical star, logical bus topology.

Answer explanation

Hub

a device that connects two (or more) media segments on the same subnet, and it filters traffic between both segments based on the MAC address in the frame. Builds a database based on MAC addresses to use for making forwarding decisions.

Answer explanation

Bridge

a multi-port bridge that performs filtering based on MAC addresses and provides additional features not found in a bridge.

Offer guaranteed bandwidth to each port.

Operate at Layer 2 of the OSI Model.

Answer explanation

Switch

A hub for a wireless network. Layer 2 Device. Often connected as a bridge by a wired segment.

Answer explanation

Wireless Access Point (WAP)

This can house multiple network devices in a vertical stack. Makes it much easier to organize network cabling.

Answer explanation

Racks

These devices are very thin. They are designed to provide the most efficient use of available rack space.

Answer explanation

Blade Devices

During a hardware/wiring configuration install, what would make sense to label?

Answer explanation

- Switch ports

- Patch panel connections

- Wall jacks

- Devices and systems

It is important to have a consistent naming convention across your data network. What are some devices you should label and have in your naming scheme?

Answer explanation

- Servers

- Routers

- Printers

- Workstations

- Switches

How do switches and bridges learn where devices are located on a network?

• When a frame enters a port, the destination IP address is copied from the frame header.

• When a frame enters a port, the source IP address is copied from the frame header.

• When a frame enters a port, the destination MAC address is copied from frame header.

• When a frame enters a port, the source MAC address is copied from the frame header.

Answer explanation

Bridges and switches learn addresses by copying the MAC address of the source device and placing it into the MAC address table. The port number that the frame entered is also recorded in the table and associated with the source MAC address.

The switch or the bridge cannot record the destination MAC address because it does not know the port that is used to reach the destination device.

t which OSI layer does a router operate to forward network messages?

• Transport

• Network

• Data Link

• Physical

Answer explanation

A router uses the logical network address specified at the Network layer to forward messages to the appropriate LAN segment.

A bridge, on the other hand, uses the MAC address and works at the Data Link layer.