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The Test > Chapter 1: OSI Model > Flashcards

Chapter 1: OSI Model Flashcards

1
Q

What is the Open Systems Interconnection (OSI) reference model?

A

It is an architectural diagram of network communications.

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2
Q

What is the mnemonic to remember the different layers of the OSI?

A

“Please Do Not Throw Sausage Pizza Away.”

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3
Q

What is layer 7 of the OSI?

A

Application.

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4
Q

What is layer 6 of the OSI?

A

Presentation.

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5
Q

What is layer 5 of the OSI?

A

Session

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6
Q

What is layer 4 of the OSI?

A

Transportation.

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7
Q

What is layer 3 of the OSI?

A

Network.

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8
Q

What is layer 2 of the OSI?

A

Data Link.

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9
Q

What is layer 1 of the OSI?

A

Physical

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10
Q

What are the main functions of the Application Layer?

A

File, print, messaging, and other services.

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11
Q

What are the main functions of the Presentation Layer?

A

Syntax translation.

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12
Q

What are the main functions of the Session Layer?

A

Dialog control, dialog separation.

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13
Q

What are the main functions of the Transport Layer?

A

Data segmentation, packet acknowledgment, error detection and correction, flow control, and port identification.

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14
Q

What are the main functions of the Network Layer?

A

Addressing, routing, error detection, and protocol identification.

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15
Q

What are the main functions of the Data Link Layer?

A

Framing, media access control, protocol identification.

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16
Q

What are the main functions of the Physical Layer?

A

Network interface hardware, binary signaling.

17
Q

What are the protocols of the Application Layer?

A

DNS, FTP, HTTP, POP3, SMTP, SNMP, DHCP.

18
Q

What are the protocols of the Transport Layer?

A

TCP, UDP.

19
Q

What are the protocols of the Network Layer?

A

IP, IPv4, IPv6, ICMP.

20
Q

What are the protocols of the Data Link Layer?

A

IEEE 802.3 (Ethernet), IEEE 802.11 (Wi-Fi).

21
Q

What are the protocols of the Physical Layer?

A

Twisted pair, fiber-optic, Wi-Fi.

22
Q

LANs today nearly always run Ethernet or Wi-Fi at which OSI layers?

A

The physical and data link layers.

23
Q

IP is run at which OSI layer?

A

The network layer.

24
Q

TCP is run at which OSI layer?

A

Transportation

25
Q

How many layers does the OSI reference model have?

A

Seven.

26
Q

How many layers does the TCP\IP model have?

A

Four.

The Test (11 decks)

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