Network+ Chapter 4 Flashcards Preview

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

________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

A

Ethernet

2
Q

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

A

True

3
Q

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

A

collision domain

4
Q

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

A

collision event

5
Q

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

A

broadcast domain

6
Q

What does the acronym CSMA/CD Stand for?

Ch 4 -pg 91

A

Carrier Sense Multiple Access with Collision Detection

CSMA/CD

7
Q

Why was CSMA/CD created?

Ch 4 -pg 91

A

it was created to overcome the problem of those collisions that occur when packets are transmitted
simultaneously from different hosts.

8
Q

What When a collision occurs on an Ethernet LAN, the following happens?

Ch 4 -pg 92

A

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
Q

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

A

true

10
Q

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

A

hardware addressing or MAC addressing

11
Q

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

A

hexadecimal

12
Q

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

A

Channel bonding (also known as Ethernet bonding)

13
Q

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

A

inherent attenuation

14
Q

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

A

10Base2

15
Q

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.

A

10Base5

16
Q

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.

A

10BaseT

17
Q

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).

A

10GBaseT

18
Q

Whats the max transmission distance of 10Base5?

A

500 meters per segment

19
Q

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

A

UTP, 10Mbps,100 Meters per segment

20
Q

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

A

UTP ,1000Mbps, 100 meters

21
Q

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

A

Digital, Intel, and Xerox

22
Q

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.

A

Preamble

23
Q

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

A

tunneling

24
Q

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

A

Data Link layer

25
Q

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

A

organizationally unique identifier (OUI)