Exam 3: Physical Transmission Options

____ is/are used mainly in older LANs and in LANs that exist in areas with strong sources of signal interference.

Packets are physically transmitted on a network by means of a network interface card.

Resistance is defined as the total amount of opposition to the flow of current and is measured in ohms.

What does QoS stand for? What is it?

Common practice is to limit runs on ____ cable to 90 meters or less.

Thin coax cable is also known as ____.

Attenuation in fiber-optic cable is measured in ____________________.

What is demand priority? What kind of networks use it? What IEEE standard uses this?

Fat pipe is another name for STP cable.

Wireless technologies are used in situations where it is difficult or too expensive to use cable and in situations in which flexibility to move network hosts and devices is a requirement.

Gigabit Ethernet uses demand priority.

____ is the easiest type of cable to install and use.

____ is/are based on copper wire construction.

____ does not use the CSMA/CD access method for transmission of signals.

A(n)____ connector is used with thin coax cable.

The EIA/TIA-568 standard specifies that vertical cabling run between network equipment rooms, floors, and buildings.

What is attenuation?

The most basic level of communications is accomplished at the OSI ____ layer.

A(n)____ connector is used with twisted-pair cable.

____ communications through public dial-up lines and leased telephone lines represent the most basic WAN carrier communications.