CNIT 344: Supplemental Cables

What institutes/associations govern the physical layer standards?

IEEE, TIA, EIA

What is the most common means for connecting network devices?

Copper media

How does data travel through copper media as?

Electrical pulses

T/F: Copper media rarely deals with interference

False

What does UTP stand for in UTP cable?

Unshielded twisted-pair

What are the categories of UTP cables?

Cat 5, Cat 5e, Cat 6

What are the speed capabilites of a Cat 5 cable?

up to 100-megabit

What are the speed capabilites of a Cat 5e cable?

full-duplex up to 1000-megabit

What are the speed capabilites of a Cat 6 cable?

recommended standard for gigabit

What are the two wiring patterns for UTP cables?

568a and 568b

What are the 3 different types of UTP cables?

Straight-through, crossover, rollover

What is a straight-through cable?

Used as long as the same pattern is used at both ends of the cable and connects a device to a switch or hub

What is a crossover cable?

Used at either end of the cable and connects two of the same devices

What is a rollover cable?

Connects a workstation serial port to a Cisco networking device console

What is a coaxial cable?

Used in wireless and cable access technologies

What are some use cases for coaxial cables?

Attach antennas to wireless devices, transmitting television channels

T/F: Coaxial cables can run longer distances than UTP or STP cables

True

What is a hyper fiber-coax cable?

Cable structure used to provide two way communication over a coaxial cable

What does a STP cable do?

Shields the entire bundle of wires within the cable as well as the individual wire pairs to provide better noise protection than UTP

What are some characteristics of fiber media that differ from copper media?

More expensive, more careful handling, immune to electromagnetic interference, much greater lengths

T/F: PVC jackets surround the optical fiber and its cladding to prevent light loss from fiber

True

How many fibers are required to support full duplex operation?

Two

What are some characteristics of single mode fiber?

Small core, long distance, less dispersion, uses lasers

What are some characteristics of multi mode fiber

Larger core, shorter distance than single, greater dispersion, uses LEDs

What are the types of Fiber Media Connectors?

Straight tip, subscriber connector, single-mode lucent connector, multimode LC, duplex multimode

What is WLAN?

Wireless LAN

WLAN is commonly referred to as _____

Wi-Fi

T/F: WLAN uses a contention system with Carrier Sense Multiple Access/Collision Avoidance

True

What is WPAN?

Wireless Personal Area Network

What is WPAN commonly known as?

Bluetooth

T/F: WPAN uses a device pairing process to communicate over distances from 1 to 100 meters

True

What is WiMAX?

Wireless broadband access

T/F: WiMAX uses a point-to-multipoint topology to provide wirless broadband access

True