*Chapter 04 Quiz (ITN101) - Ethernet Standards

All NICs today run half-duplex. (T/F)

All NICs today run half-duplex. (T/F)

False

The vast majority of network rollouts in offices use 1000BASE-T connections, or __________, as you'll hear them called.

drops

What wavelength is used on a 10GBASE-Ey network?

1550 nm

What is the most common connector used in a 1000BASE-SX network?

LC

Which wavelength is used by 1000BASE-LX fiber-optic cabling?

1300 nm

Which wavelength is used on 10GBASE-LW fiber-optic cabling?

1310 nm

Which is the least expensive and most popular 10 GbE media type?

10GBase-LR

The __________ version of Gigabit Ethernet, published under the 802.3z standard, is divided into a series of standards, with names such as 1000BASE-SX and 1000BASE-LX.

1000BASE-X

A connection created using angled physical contact (APC) connectors degrades from multiple insertions. (T/F)

False

Twisting fiber-optic cables when inserting or removing them is a cable-safe and popular action. (T/F)

False

With ___________________, you can get multiple signals to flow over the same wire at the same time, modulating to higher frequencies.

broadband

Of all the Gigabit Ethernet IEEE standards detailed in the chapter, which one maintains a signal over the greatest distance?

1000BASE-LX

What is the name of the IEEE standard for 10 GbE running on twisted pair cabling?

10GBASE-T

What wavelength is used on a 10GBASE-SR network?

850 nm

1000BASE-T connections and ports look exactly like the ones on a 10BASE-T or 100BASE-T network. (T/F)

True

The Ethernet community would like to position 1000BASE-SX as the Ethernet backbone of the future. (T/F)

False

The NIC and the attached __________ determine full- or half-duplex during the auto-negotiation process.

switch

All modern NICs are multispeed and auto-sensing. (T/F)

True

The specification for 100BASE-T calls for UTP cabling using __________ or better rated cabling.

Cat 5

The different colors of the laser signals transmitted over fiber-optic cables feature different __________.

wavelengths

What general type of cabling is a technician most likely to use today when installing Ethernet cabling in areas with high electrical interference?

fiber-optic

With full-duplex, a NIC can send and receive data at the same time. (T/F)

True

Which very high-speed fiber network was already in place and being used for wide area networking (WAN) transmissions before the IEEE developed the 10 GbE Ethernet standards?

SONET

Which term refers to the 100-Mbps standards, even though there are now much faster versions of Ethernet available?

Fast Ethernet

Which 10 GbE standard features a multimode fiber type?

10GBASE-SR

What type of fiber-optic cabling and connectors does a 100BASE-FX network use?

multimode with ST or SC connectors

The older __________ connector left a little gap between the connection points due to imperfections in the glass.

flat-surface connector

Full-duplex Ethernet directly increases network speed. (T/F)

False

The "R" in the standard 10GBASE-SR stands for which type of signaling?

LAN

What wavelength is used on 10GBASE-SW fiber-optic cabling?

850 nm

Manufacturers have accommodated the need for switches to connect to a variety of 10 GbE connector types by devising which concept?

multisource agreements (MSAs)

1000BASE-LX connectors look similar to 1000BASE-SX connectors. (T/F)

True

What is the maximum cable length on a segment of a 1000BASE-T network?

200 meters

Which modular transceivers have replaced gigabit interface converters (GBICs) as the modular transceiver of choice?

small form-factor pluggable (SFP)