Troubleshoot Physical Connectivity

Question 1

Network topology

Answer 1

A description of how computers and links are connected in a network (physical topology) and the flow of data (logical topology).

Question 2

Link light

Answer 2

LED light, or lights on network adapters or switches, that indicate the status of the physical link.

Question 3

Bus topology

Answer 3

A network topology where all nodes in the network are connected to a cable (called a bus).

Question 4

Star topology

Answer 4

A network topology in which every node in the network is connected to a central node (either a hub or a switch) in a spoke-and-hub organization.

Question 5

Ring topology

Answer 5

A network topology in which every node is connected to two other nodes in a closed circular organization where data travels through every node.

Question 6

Mesh topology

Answer 6

A network topology in which every node is connected to every other node in the network to create redundancy.

Question 7

Bus

Answer 7

A break in the network bus means that the end of the network bus is no longer terminated. For this reason, a break in the bus typically means that no devices can communicate.
Consider the following examples:

When a cable on the network breaks, each end of the cable on either side of the break loses its termination.
When a cable becomes loose or is disconnected, the computer is not connected to the network; this also creates an end that is not terminated.
When a terminator becomes loose, there is an end that is not terminated.
It is difficult to identify the location of a break on a true bus network.

Question 8

Star

Answer 8

A break in a star means that the device connected to the central device through that cable can no longer communicate on the network. All other hosts will be able to communicate with all other devices.

Question 9

Ring

Answer 9

A break in the ring means that data can travel only in one direction (downstream) until it reaches the break. Computers can send messages downstream to other devices, but cannot receive responses because of the break.

Question 10

Mesh

Answer 10

A break in a single link in a mesh topology has no effect on communications. Data can be routed to the destination device by taking a different (though sometimes longer) path through the mesh topology.