Section 4

Question 1

Ethernet IEEE 802.3

Answer 1

The ethernet frame has stayed the same since the beginning. Ethernet lives on MAC addresses. 10Base5 (10 is mbps, Base there is only one channel, 5 length of cable in hundreds of meters). If it has a “T” at the end it uses an unshielded twisted pair.

Question 2

Ethernet Frame

Answer 2

Preamble- alternating 1’s 0’s letting the host know a frame is coming.
Destination MAC —> Source MAC —> Data type= Ether type —> Data- min. 64 bytes —> PAD fills the data go to the minimum 64 bytes Max- 1522 bytes —> FCS (frame check sequence) error detection

Question 3

Jumbo Frame

Answer 3

lets frames contain 9000 bytes

Question 4

Segmented Ethernet

Answer 4

CSMA/CD- Carrier sense multiple access/ collision detection
Terminating resistors

Question 5

10Base2

Answer 5

uses a BNC connector (T connector), can handle up to 30 devices per segment. 200 meter segment but actually 185m

Question 6

10BaseT

Answer 6

runs at 10 mbps over CAT 3 or better UTP. Can have up to 1024 nodes per switch. Runs are a max of 100m between the switch and node

Question 7

RJ-45 (officially called 8P8C connector) is the Network Connection.

Question 8

Straight through Cable

Answer 8

whatever is on pin 1 on one end is pin one on the other end, most commonly used cable in networks

Question 9

Crossover cable

Answer 9

crossing the send and receive cables

Question 10

Hub

Answer 10

a multiport repeater, create a copy of a frame for every host on the network, degradation of the throughput, uses CSMA/CD. Anyone in one hub is in a collision domain

Question 11

Switch

Answer 11

Switches use MAC addresses, just sends frames to destination (advantage over hubs), Broadcast domain- connected to a switch