Exam 3: Physical Transmission Options

A CSU is like a digital modem that converts the received signal to one that can be placed on a network and be received by a workstation or server.

____ cable does not experience EMI or RFI.

____ is the most commonly used cabling.

____ is an established high-speed WAN alternative offered by several telecommunications companies.

The maximum speed of thick coax cable is 100 Mbps.

What are the two methods of placing digital signals on the network?

Wireless media are radio or microwaves.

Which is not true about fiber-optic cable?

Upstream bandwidth is usually lower than downstream.

List five factors that should be considered when choosing the best medium for a LAN or WAN.

What is the difference between a baseband transmission and a broadband transmission?

The ____________________ for optical fiber cable communications is the difference between the transmitted power and the resulting signal strength, or sensitivity, at the receiver as measured in decibels.

10 Gigabit Ethernet operates only at full duplex.

A(n)____________________ typically contains a fixed amount of data formatted to be transmitted at high speeds, from 155 Mbps to over 1 Gbps.

Ethernet communications at speeds up to 100 Mbps as defined under the IEEE 802.3u standard are called Fast Ethernet.

The longest cable run in 10Base5 cable is ____.

In____ multimode fiber-optic cable, signals all arrive at the same time and with less long-distance distortion than the other type of multimode fiber-optic cable.

On thick coax cable, if you attach devices more closely than 12.5 meters, the signal can be impaired, and network errors may result.

____ is commonly called 10BaseT cable.

UTP cable is not susceptible to interference.