OSI Model

Question 1

What is layer 7 of the OSI model?

Answer 1

Application layer

Question 2

What takes place on the application layer?

Answer 2

users interact with network services

Question 3

What are examples of layer 7

Answer 3

http, Chrome, Firefox, office, outlook, skype

Question 4

What is layer 6?

Answer 4

presentation layer

Question 5

what takes place on presentation layer?

Answer 5

syntax processing, converting data from one format to another (encryption/decryption)

Question 6

what is layer 5?

Answer 6

session layer

Question 7

what does OSI stand for?

Answer 7

open systems interconnection

Question 8

what takes place on session layer

Answer 8

construction, direction, conclusion of connections between devices; responsible for reconnecting, authentication

Question 9

what is layer 4

Answer 9

transport

Question 10

what takes place on the transport layer

Answer 10

transmission of data across network connections, including how much data, how fast, where it goes (associated with TCP/UDP)

Question 11

what is layer 3

Answer 11

network layer (routers

Question 12

what takes place on layer 3

Answer 12

handles routing of data {IP], manages mapping between logical/physical addresses

Question 13

what is layer 2

Answer 13

data link (bridges, switches, NIC drivers)

Question 14

what takes place on layer 2

Answer 14

divided into MAC, LLC - sets up links across physical network (frames) 802.11 wireless specs, ethernet

Question 15

what is layer 1

Answer 15

physical layer

Question 16

what happens on layer 1

Answer 16

electrical, cables, powerplugs, connectors, receivers, repeaters and so on. First place to begin when troubleshooting