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Flashcards in Fund of an Ethernet LAN Deck (17)
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1

Describe the 3-way handshake.

Happens before TCP does anything. 2 bits inside TCP FLAG field. User sends SYN, Server replies with SYN-ACK, User replies with ACK

2

Describe the sequence of packets that terminates a TCP connection

User sends ACK-FIN, Server replies with ACK and then ACK-FIN, User replies with ACK

3

How many bytes and bits is a MAC address?

6 bytes or 48 bits

4

Name the layers of the TCP/IP Model.

Application, Transport, Network, Data link, Physical

5

Ethernet pinouts on a PC?

1 and 2 for Transmit, 3 and 6 to Receive

6

Ethernet pinouts on a switch?

3 and 6 for Transmit, 1 and 2 to Receive

7

Crossover cable pinouts?

1 to 3, 2 to 6

8

Pinout pairs on a PC with gigabit cabling

1 and 2, 3 and 6, 4 and 5, 7 and 8

9

What goes into the TYPE field of an Ethernet header designating IPV4?

0800

10

What goes into the TYPE field of an Ethernet header designating IPV6?

86DD

11

How long is the TYPE field of an Ethernet header?

2 bytes

12

Name the field in the Ethernet trailer.

FCS

13

For TCP and UDP, what is multiplexing?

The process of adding a port number to TCP or UDP header identifying which application the packet is meant for.

14

What 3 things make up a socket?

IP address, the transport protocol, and the port number

15

Is a leased line full duplex or half duplex?

Full Duplex

16

How many wires in a leased line?

4. Two pair. One pair each for sending and receiving, thereby allowing for full duplex.

17

What kind of cable goes from router to CSU/DSU?

Serial cable less than 50 feet. Also known as DTE cables.