Exam 12: Ethernet

Rapid Ethernet refers to a set of specifications developed by the IEEE 802.3 committee to provide a low-cost,Ethernet-compatible LAN operating at 100 Mbps and utilizing 10BASE-T.

Client/server computing has become a dominant architecture in the business environment.

Two frames interfering with each other at the receiver so that neither gets through is known as ________.

An ________ is a direct point-to-point or multipoint communications link, predominantly hardware based and designed for high speed over very short distances.It transfers data between a buffer at the source device and a buffer at the destination device,moving only the user contents from one device to another without regard to the format or meaning of the data.

The IEEE 802.3 standard allows a maximum of ________ repeaters between any two stations with the 10BASE5 alternative.

To ensure that backoff maintains stability,IEEE 802.3 and Ethernet use a technique known as ________ backoff.

The ________ alternative uses unshielded twisted pair in a star shaped topology.The length of a link is limited to 100 meters,unless an optical fiber link is used, then the maximum length is 500 m.

Which of the following makes use of two optical fiber cables,one for transmission and one for reception,and utilizes a technique known as intensity modulation.

For 1 Gbps and 10 Gbps operations the CSMA/CD MAC protocol is used.

IEEE 802.3ba specifies three types of transmission media: copper backplane, twisted pair and ________.

A technique known as slotted ________ organizes time on the channel into uniform slots whose size equals the frame transmission time.Transmission is permitted to begin only at a slot boundary.

The IEEE 802.3 standard is known as ________.

Ethernet now encompasses data rates of ________.

The CSMA/CD algorithm used in the IEEE 802.3 standard is ________.

A variety of signal encoding techniques are used in the various LAN standards to achieve efficiency and to make the high data rates practical.

With full-duplex operation a station can transmit and receive simultaneously.

For the lower data rates the ________ MAC protocol is used.

The IEEE standard restricts the maximum length of coaxial cable to 500 m for 10BASE5 and 200 m for ________.

A compromise that attempts to reduce collisions,like nonpersistent,and reduce idle time,like 1-persistent,is p- persistent.

With ________,a station wishing to transmit first listens to the medium to determine if another transmission is in progress.If the medium is in use,the station must wait.If the medium is idle,the station may transmit.