OSI Layers Quiz

The Open Systems Interconnection (OSI) model consists of: 1) 7 layers 2) 3 layers 3) 9 layers 4) 5 layers

1) 7 layers

OSI layer 7 is also referred to as: 1) Application layer 2) Session layer 3) Presentation layer 4) Transport layer

1) Application layer

In the OSI model, physical addressing takes place at the: 1) Data link layer 2) Layer 4 3) Physical layer 4) Session layer

1) Data link layer

At which of the OSI layers IP addressing takes place? 1) Layer 3 2) Layer 1 3) Layer 4 4) Layer 6

1) Layer 3

Transport layer resides between which two other layers of the OSI model? 1) Network and Session 2) Presentation and Application 3) Physical and Network 4) Physical and Data link

1) Network and Session

Internet Protocol Security (IPsec) resides at: 1) Network layer of the OSI model 2) Transport layer of the OSI model 3) Session layer of the OSI model 4) Presentation layer of the OSI model

1) Network layer of the OSI model

In the OSI model, data compression takes place at the: 1) Presentation layer 2) Session layer 3) Network layer 4) Physical layer

1) Presentation layer

Layer 5 of the OSI model is called: 1) Session layer 2) Application layer 3) Transport layer 4) Presentation layer

1) Session layer

Layer 4 of the OSI model is also known as: 1) Transport layer 2) Network layer 3) Data link layer 4) Session Layer

1) Transport layer

Which of the following protocols reside(s) at the application layer of the OSI model? (Select all that apply) 1) HTTP 2) FTP 3) SMTP 4) NetBIOS 5) ARP

1) HTTP 2) FTP 3) SMTP

Which of following protocols reside(s) at the OSI network layer? (Select all that apply) 1) IPv4 2) UDP 3) IPsec 4) TCP 5) IPv6 6) ICMP

1) IPv4 3) IPsec 5) IPv6 6) ICMP

User Datagram Protocol (UDP) resides at: (Select 2 answers) 1) Transport layer 2) Layer 3 3) Layer 4 4) Network layer 5) Layer 6 6) Data link layer

1) Transport layer 3) Layer 4

In the OSI model, Transmission Control Protocol (TCP) resides at: (Select all that apply) 1) Transport layer 2) Layer 3 3) Application layer 4) Layer 4 5) Network layer 6) Layer 7

1) Transport layer 4) Layer 4

Layer 3 of the OSI model is also referred to as: 1) Data link layer 2) Network layer 3) Session layer 4) Transport layer

2) Network layer

Layer 6 of the OSI model is also known as: 1) Application layer 2) Presentation layer 3) Session layer 4) Transport layer

2) Presentation layer

Data encryption and decryption typically takes place at the: 1) Layer 5 of the OSI model 2) Presentation layer of the OSI model 3) Layer 7 of the OSI model 4) Data link layer of the OSI model

2) Presentation layer of the OSI model

Which OSI layer is responsible for breaking up data into segments? 1) Network layer 2) Transport layer 3) Presentation layer 4) Data link layer

2) Transport layer

Which of the following reside(s) at the physical layer of the OSI model? (Select all that apply) 1) Router 2) Hub 3) Switch 4) Network cabling 5) Bridge

2) Hub 4) Network cabling

What is the name of a data unit used at the OSI physical layer? 1) Frame 2) Segment 3) Bit 4) Packet

3) Bit

In the OSI model, Media Access Control (MAC) and Logical Link Control (LLC) sublayers are the components of: 1) Session layer 2) Data link layer 3) Transport layer 4) Network layer

3) Data link layer

Layer 2 of the OSI model is also known as: 1) Transport layer 2) Network layer 3) Data link layer 4) Physical layer

3) Data link layer

Which of the following devices resides at the data link layer of the OSI model? 1) Router 2) Passive Hub 3) Ethernet switch 4) Repeater

3) Ethernet switch

Physical layer of the OSI model is also referred to as: 1) Layer 2 2) Layer 7 3) Layer 1 4) Layer 4

3) Layer 1

Which of the following terms refers to the OSI network layer? 1) Layer 2 2) Layer 5 3) Layer 3 4) Layer 4

3) Layer 3

In the OSI model, session layer is also known as: 1) Layer 4 2) Layer 6 3) Layer 5 4) Layer 3

3) Layer 5

Presentation layer is another term for: 1) Layer 7 of the OSI model 2) Layer 5 of the OSI model 3) Layer 6 of the OSI model 4) Layer 4 of the OSI model

3) Layer 6 of the OSI model

Application layer of the OSI model is known as: 1) Layer 3 2) Layer 6 3) Layer 7 4) Layer 5

3) Layer 7

Routers operate at: (Select two answers) 1) Physical layer of the OSI model 2) Application layer of the OSI model 3) Layer 3 of the OSI model 4) Network layer of the OSI model 5) Layer 5 of the OSI model

3) Layer 3 of the OSI model 4) Network layer of the OSI model

Which of the protocols listed below resides at the session layer of the OSI model? 1) HTTP 2) UDP 3) SMTP 4) NetBIOS 5) IP

4) NetBIOS

Which OSI layer assumes responsibility for managing network connections between applications? 1) Network layer 2) Data link layer 3) Application layer 4) Session layer

4) Session layer