Exploration of IT - Unit 4 Post Test

___________ is a method for connecting computers through a shared physical cable.

• Sneakernet

• Ethernet

• Local Area Network

• Wi-Fi

When exchanging information each computer is required to have a physical address to identify the machine. This physical address is known as the ___________

• MAC Address

• Port

• IP Address

• Ethernet Address

_______ is a measure of the rate at which a carrier (transmission medium) can transmit data.

• Bandwidth

• Ethernet Rate

• Internet Protocol

• Collision Detection

When two computers attempt to send data using a shard carrier (transmission medium) a _________ occurs.

• Collision

• Ethernet Crash

• Jamming

• Backoff

What is exponential backoff?

• When detecting frequent collisions computers will wait longer periods of time before retransmitting.

• A relatively small network of close-by computers.

• A subset of computers isolated into seperate domains to reduce collisions.

• Dedicating the entire circuit to a single task or user.

A __________ is created when a subset of computers isolated into seperate domains to reduce collisions.

• Collision Domain

• Sneakernet

• Local Area Network (LAN)

• Exponential Backoff

What is circuit switching?

• When detecting frequent collisions computers will wait longer periods of time before retransmitting.

• A relatively small network of close-by computers.

• A subset of computers isolated into seperate domains to reduce collisions.

• Dedicating the entire circuit to a single task or user.

How does message switching provide fault-tolerance?

• It has the ability to detect collisions.

• Messages can be rerouted around delays

• It dedicates an entire circuit to a single user or task

• The message is broken down into smaller packets for efficient transmission

Efficient routing is critical to an efficient network. What two related ideas help computers maintain effective routing?

• Hop Count

• Hop Limit

• Local Area Network

• Packet Switching

• Internet Protocol

What is packet switching?

• Breaking messages into smaller pieces (packets) for efficient transmission

• Dedicating entire circuits to a single task or user

• Isolating groups of computers so they are less likely to create a collision

• Detecting frequent collisions and waiting longer periods of time before retransmitting