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Flashcards in Network+ Chapter 4 Deck (25):
1

________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

2

True or False-Ethernet uses both Data Link and Physical layer specifications Ch 4 -pg 90

True

3

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

4

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

5

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

6

What does the acronym CSMA/CD Stand for?
Ch 4 -pg 91

Carrier Sense Multiple Access with Collision Detection
(CSMA/CD)

7

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.

8

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.

9

T or F You can run full duplex with just about any device except a hub? Ch 4 -pg 93

true

10

Ethernet at the Data Link layer is responsible for Ethernet addressing, commonly referred to as ? Ch 4 -pg 94

hardware addressing or MAC addressing

11

Ethernet MAC addresses are made up of________ addresses Ch 4 -pg 94

hexadecimal

12

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)

13

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

14

10Mbps baseband technology, using coax up to 185 meters in length also known as Thin net. ch 4 102

10Base2

15

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

16

10Mbps using Category 3 UTP wiring. Unlike on 10Base2 and 10Base5 networks, each device must connect into a hub or switch, and you can have only one host per segment or wire. Uses an RJ-45 connector (8-pin modular connector) with a physical star topology
and a logical bus.

10BaseT

17

is a standard created by the IEEE 802.3 an committee to provide 10Gbps connections over conventional UTP cables (Category 5e, 6, or 7 cables).

10GBaseT

18

Whats the max transmission distance of 10Base5?

500 meters per segment

19

With 10baseT whats the Cable type,Max Speed, and transmission distance?

UTP, 10Mbps,100 Meters per segment

20

With 1000BaseT whats the Cable type,Max Speed, and transmission distance?

UTP ,1000Mbps, 100 meters

21

Ethernet was first implemented by a group called DIX. What are the 3 companies that make up DIX? ch 4 101

Digital, Intel, and Xerox

22

An alternating 1,0 pattern provides a 5MHz clock at the start of each packet, which allows the receiving devices to lock the incoming bit stream.

Preamble

23

Encapsulating a frame within a different type of frame is called? ch 4 99

tunneling

24

is responsible for combining bits into bytes and bytes into frames. Ch 4 pg 98

Data Link layer

25

is assigned by the Institute of Electrical and Electronics Engineers (IEEE) to an organization. It’s composed of 24 bits, or 3 bytes. ch 4 pg 98

organizationally unique identifier (OUI)