Review: OSI Layers Self-Study Short Version (N10-008) (25)

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The Open Systems Interconnection (OSI) model consists of how many layers:

7 Layers

HTTP, FTP, & SMTP reside at the which layer of the OSI model?

Application Layer, Layer 7

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

Bit

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

Data Link Layer, Layer 2

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

Data Link Layer, Layer 2

The Ethernet Switch resides at the which layer of the OSI model?

Data Link Layer, Layer 2

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

Layer 1

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

Layer 2

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

Layer 3

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

Layer 4

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

Layer 5

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

Layer 6

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

Layer 7

ICMP, IPsec, IPv4, & IPv6 reside at the which layer of the OSI model?

Network Layer, Layer 3

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

Network and Sessions, Layers 3 & 5

At which of the OSI layers does IP addressing take place?

Network layer, Layer 3

Routers operate at which layer of the OSI model

Network layer, Layer 3

The hub and network cabling reside at which layer of the OSI model?

Physical Layer, Layer 1

Data encryption and decryption typically takes place at which layer of the OSI model

Presentation Layer, Layer 6

In the OSI model, data compression takes place at the:

Presentation Layer, Layer 6

NetBIOS resides at which layer of the OSI model?

Session Layer, Layer 5

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

Session Layer, Layer 5

In the OSI model, Transmission Control Protocol (TCP) resides at which layer of the OSI model?

Transport Layer, Layer 4

User Datagram Protocol (UDP) resides at which layer of the OSI model?

Transport Layer, Layer 4

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

Transport Layer, Layer 4


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