OSI Model

Question 1

The Open Systems Interconnection (OSI) model consists of:

Answer 1

7 layers

Question 2

Physical layer of the OSI model is also known as:

Answer 2

Layer 1

Question 3

Which of the following protocols reside at the application layer of the OSI model?

Answer 3

HTTP, “Hypertext Transfer Protocol”

SMTP, “Simple Mail Transfer Protocol”

FTP, “File Transfer Protocol”

Question 4

Which of the terms listed below refers to the OSI network layer?

Answer 4

Layer 3

Question 5

Layer 6 of the OSI model is also referred to as:

Answer 5

Presentation Layer

Question 6

In the OSI model, physical addressing takes place at the:

Answer 6

Datalink Layer “layer 2”

Question 7

OSI layer 7 is also known as:

Answer 7

Application

Question 8

Which of the following reside at the physical layer of the OSI model?

Answer 8

Hub

Network cabling

Question 9

Character encoding, data compression and encryption/decryption take place at the

Answer 9

Presentation Layer “Layer 6”

Question 10

Which OSI layer assumes responsibility for managing network connections between applications?

Answer 10

Session Layer “Layer 5”

Question 11

Layer 4 of the OSI model is also known as:

Answer 11

Transport Layer

Question 12

The term “Presentation layer” refers to:

Answer 12

Layer 6

Question 13

What is the name of a data unit used at the OSI physical layer?

Answer 13

Bit

Question 14

In the OSI model, Media Access Control (MAC) and Logical Link Control (LLC) sublayers are the components of:

Answer 14

Datalink Layer “Layer 2”

Question 15

Layer 2 of the OSI model is also referred to as:

Answer 15

Datalink Layer

Question 16

User Datagram Protocol (UDP) resides at:

Answer 16

Transport Layer, “Layer 4”

Question 17

Which OSI layer is responsible for breaking up data into segments?

Answer 17

Transport Layer, “Layer 4”

Question 18

Transport layer resides between which two other layers of the OSI model?

Answer 18

Network & Session

Question 19

Routers operate at:

Answer 19

Network Layer, “Layer 3”

Question 20

Layer 5 of the OSI model is also known as:

Answer 20

Session Layer

Question 21

In the OSI model, session layer is also referred to as:

Answer 21

Layer 5

Question 22

At which of the OSI layers IP addressing takes place?

Answer 22

Network layer “Layer 3”

Question 23

Layer 3 of the OSI model is also known as:

Answer 23

Network Layer

Question 24

Data encryption and decryption typically takes place at the:

Answer 24

Presentation Layer “Layer 6”

Question 25

The application layer of the OSI model is also referred to as:

Answer 25

Layer 7

Question 26

Which of the following devices resides at the data link layer of the OSI model?

Answer 26

Ethernet Switch

Question 27

In the OSI model, Transmission Control Protocol (TCP) resides at:

Answer 27

Transport Layer “Layer 4”

Question 28

Which of following protocols reside(s) at the OSI network layer? “4 Answers”

Answer 28

IPv4

IPv6

IPSec

ICMP “Internet Control Message Protocol”

Question 29

Which protocol resides at the session layer of the OSI model?

Answer 29

PPTP “Point To Point Tunneling Protocol”

Question 30

Internet Protocol Security (IPsec) resides at:

Answer 30

Network Layer “Layer 3”

Question 31

Which protocolS reside at the OSI transport layer?

Answer 31

UDP “User Datagram Protocol”

TCP “Transmission Control Protocol”

Question 32

Which are components that reside at the OSI network layer? “3 answers”

Answer 32

Router

IP address

Packet

Question 33

What are the characteristic components of the OSI data link layer? (Select 3 answers)

Answer 33

MAC address

Switch

Frame

Question 34

Which of the following reside at the physical layer of the OSI model? (Select 2 answers)

Answer 34

Bit

Network Cabling

Question 35

The term “Transport layer” refers to:

Answer 35

Layer 4