Mike Meyer's Guide to Network+ Chapter 5

True

1000BaseLX connectors look like 1000BaseSX connectors. True or False?

False

1000BaseSX devices do not physically resemble 100BaseFX products. True or False?

10GBaseT

A 10 GbE standard designed to run on CAT6a UTP cabling. Maximum cable length of 100 m.

10GBaseLR

A 10 GbE standard using 1310-nm single-mode fiber. Maximum cable length up to 10 km.

10GBaseLW

A 10 GbE standard using 1310-nm single-mode fiber. Maximum cable length up to 10 km.

10GBaseER

A 10 GbE standard using 1550-nm single-mode fiber. Maximum cable length up to 40 km.

10GBaseEW

A 10 GbE standard using 1550-nm single-mode fiber. Maximum cable length up to 40 km.

10GBaseSR

A 10 GbE standard using 850-nm multimode fiber. Maximum cable length up to 300 m.

10GBaseSW

A 10 GbE standard using 850-nm multimode fiber. Maximum cable length up to 300 m.

Small Form Factor Pluggable (SFP)

A Cisco module that enables you to add additional features to its routers.

1000BaseT

A Gigabit Ethernet standard using CAT 5e/6 UTP cabling, with a 100-m maximum cable distance.

1000BaseSX

A Gigabit Ethernet standard using multi- mode fiber cabling, with a 220- to 500-m maximum cable distance.

1000BaseLX

A Gigabit Ethernet standard using sin- gle-mode fiber cabling, with a 5-km maximum cable distance.

1000BaseCX

A Gigabit Ethernet standard using unique copper cabling, with a 25-m maximum cable distance.

Small Form Factor (SFF)

A description of later-generation, fiber-optic connectors designed to be much smaller than the first iterations of connectors.

Multisource agreement (MSA)

A document that details the interoperability of network hardware from a variety of manufacturers.

LC

A duplex type of Small Form Factor (SFF) fiber connector, designed to accept two fiber cables.

10 Gigabit Ethernet (10 GbE)

A very fast Ethernet designation, with a number of fiber-optic and copper standards.

True

All versions of Ethernet use either a hub or a switch. True or False?

Synchronous Optical Network (SONET)

An American fiber carrier standard for connecting fiber-optic trans- mission systems.

100BaseT4

An Ethernet LAN designed to run on UTP cabling. Runs at 100 Mbps and uses four-pair CAT 3 or better cabling. Made obsolete by 100BaseT.

1000BaseX

An umbrella Gigabit Ethernet standard. Also known as 802.3z. Comprises all Gigabit standards with the exception of 1000BaseT, which is under the 802.3ab standard.

Baseband

Digital signaling that has only one signal (a single signal) on the cable at a time. The signals must be in one of three states: one, zero, or idle.

Flat-surface connector

Early fiber-optic connector that resulted in a small gap between fiber-optic junctions due to the flat grind faces of the fibers. It was replaced by Angled Physical Contact (APC) connectors.

True

Ethernet backbone networks must use a high-speed switch. True or False?

Physical contact (PC) connector

Family of fiber-optic connectors that enforces direct physical contact between two optical fibers being connected.

Ultra Physical Contact (UPC) connector

Fiber-optic connector that makes physical contact between two fiber-optic cables.

Angled Physical Contact (APC) connector

Fiber-optic connector that makes physical contact between two fiber-optic cables. It specifies an 8-degree angle to the curved end, lowering signal loss.

NIC, Switch

For a network to function in full-duplex, which o these devices must support full-duplex? (Select all that apply.) A) NIC B) hub C) BIOS D) switch

Wavelength

In the context of laser pulses, the distance the signal has to travel before it completes its cyclical oscillation and starts to repeat. Measured in nanometers, wavelength can be loosely associated with colors.

Gigabit Interface Converter (GBIC)

Modular port that supports a standardized, wide variety of gigabit interface modules.

Fast ethernet

Nickname for the 100-Mbps Ethernet standards. Originally applied to 100BaseT.

1000BaseLX

Of all the Gigabit Ethernet standards detailed in the chapter, which maintains a signal over the greatest distance? A) 1000BaseT B) 1000BaseTCX C) 1000BaseLX D) 1000BaseCX

1000BaseTX

Short-lived gigabit-over-UTP standard from TIA/EIA. Considered a competitor to 1000BaseT, it was simpler to implement but required the use of CAT 6 cable.

False

The Ethernet folks are trying to position 1000BaseSX as the Ethernet backbone of the future. True or False?

802.3ab

The IEEE standard for 1000BaseT.

Mechanical Transfer Registered Jack (MT-RJ)

The first type of Small Form Factor (SFF) fiber connector, still in common use.

CAT5e

The specification for 100BaseTX calls for UTP cabling using __________ or better rated cabling. A) CAT1 B) CAT3 C) CAT5e D) CAT2

100BaseTX

The technically accurate but little-used name for 100BaseT.

802.3z

The umbrella IEEE standard for all versions of Gigabit Ethernet other than 1000BaseT.

Fast Ethernet

This term is used to refer to any of the several variations of Ethernet that operate at 100 Mbps. A) Fast Ethernet B) full-duplex C) Gigabit D) switched

1024

What is the limit to the number of nodes in every version of Ethernet? A) 48 B) 1024 C) 1000 D) 300 meters

100 meters

What is the maximum cable length for a 1000BaseT network? A) 90 meters B) 100 meters C) 100 feet D) 200 meters

Multisource agreements (MSAs)

What is the solution manufacturers devised to accommodate the need for switches to connect to a variety of 10 GbE connector types? A) SC connectors B) ST connectors C) multisource agreements (MSAs) D) twinaxial cable

Multimode with ST or SC connectors

What type of fiber-optic cabling and connectors does a 100BaseFX network use? A) twinaxial with twinaxial connectors B) multimode with various connectors C) single-mode with various connectors D) multimode with ST or SC connectors

1310

What wavelength is used on 10GBaseLW fiber-optic cabling? A) 1310 B) 1550 C) 1300 D) 850

850

What wavelength is used on 10GBaseSW fiber-optic cabling? A) 1310 B) 850 C) 1300 D) 1550

850

What wavelength is used on a 10GBaseSR/SW network (nanometers)? A) 850 B) 1310 C) 1550 D) 1300

10 Mbps sending and receiving

When a multi-speed, auto-sensing 100BaseT NIC connects to a 10BaseT Ethernet hub, at what speed will the NIC function? A) 10 Mbps sending, 100 Mbps receiving B) 100 Mbps sending, 10 Mbps receiving C) 10 Mbps sending and receiving D) 100 Mbps sending and receiving

10GBaseLR

Which is the cheapest and most popular 10 GbE media type? A) 10GBaseSR B) 10GBaseSW C) 10GBaseLW D) 10GBaseLR

1000BaseT

Which version of Gigabit Ethernet is published under the 802.3ab standard? A) 1000BaseT B) 1000BaseCX C) 1000BaseSX D) 1000BaseLX

1000BaseCX, 1000BaseSX, 1000BaseLX

Which versions of Gigabit Ethernet are published under the 802.3z standard? (Select all that apply.) A) 1000BaseT B) 1000BaseCX C) 1000BaseSX D) 1000BaseLX

100BaseT

designed to run on UTP cabling. Runs at 100 Mbps, uses baseband signaling, and uses two pairs of wires on CAT5 or better cabling.

100BaseFX

optic cabling. Runs at 100 Mbps and uses baseband signaling. Maximum cable length is 400 m for half-duplex and 2 km for full-duplex.