Network+ Chapter 4 Flashcards
________is a contention media-access method that allows all hosts on a network to share the same bandwidth of a link. Ch 4 -pg 90
Ethernet
True or False-Ethernet uses both Data Link and Physical layer specifications Ch 4 -pg 90
True
The term___________is an Ethernet term that refers to a particular network scenario wherein one device sends a packet out on a network segment and thereby forces every other device on that same physical network segment to pay attention to it. Ch 4 -pg 90
collision domain
a situation
where each device’s digital signals interfere with another on the wire—occurs and forces the
devices to retransmit later. Ch 4 -pg 90
collision event
A___________ refers to the set of all devices on a network segment that hear all the broadcasts sent on that segment. Ch 4 -pg 90
broadcast domain
What does the acronym CSMA/CD Stand for?
Ch 4 -pg 91
Carrier Sense Multiple Access with Collision Detection
CSMA/CD
Why was CSMA/CD created?
Ch 4 -pg 91
it was created to overcome the problem of those collisions that occur when packets are transmitted
simultaneously from different hosts.
What When a collision occurs on an Ethernet LAN, the following happens?
Ch 4 -pg 92
1) A jam signal informs all devices that a collision occurred.
2) The collision invokes a random backoff algorithm.
3) Each device on the Ethernet segment stops transmitting for a short time until the timers expire.
4) All hosts have equal priority to transmit after the timers have expired.
T or F You can run full duplex with just about any device except a hub? Ch 4 -pg 93
true
Ethernet at the Data Link layer is responsible for Ethernet addressing, commonly referred to as ? Ch 4 -pg 94
hardware addressing or MAC addressing
Ethernet MAC addresses are made up of________ addresses Ch 4 -pg 94
hexadecimal
is a computer-networking arrangement where two or more network interfaces on a host are combined for redundancy and/or increased throughput. ch 4 pg 101
Channel bonding (also known as Ethernet bonding)
is defined as the loss of signal strength as it travels the length of a cable and is measured in decibels (dB). ch 4 102
inherent attenuation
10Mbps baseband technology, using coax up to 185 meters in length also known as Thin net. ch 4 102
10Base2
10Mbps baseband technology, using coax up to 500 meters in length. Known as thicknet. Uses a physical and logical bus with AUI connectors. Up to 2,500 meters with
repeaters and 1,024 users for all segments.
10Base5
