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56 Cards in this Set

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  • Back
What is layer 7 of the OSI model?
The Application layer
What layer number is the Application layer of the OSI model?
7
What is layer 6 of the OSI model?
The Presentation layer
What layer number is the Presentation layer of the OSI model?
6
At which OSI layer is encryption / decryption?
Layer 6, or the Presentation layer
At which OSI layer is data compression?
Layer 6, or the Presentation layer
What is layer 5 of the OSI model?
The Session layer
What layer number is the Session layer of the OSI model?
5
What is layer 4 of the OSI model?
The Transport Layer
What layer number is the Transport layer of the OSI model?
4
What does MTU stand for?
Maximum Transmission (or Transfer) Unit
What is the typical value for MTU?
1500 bytes.
At which OSI layer are software ports?
Layer 4, or the Transport layer
What does TCP stand for?
Transmission Control Protocol
Which protocol provides for guaranteed delivery of information?
TCP, or Transmission Control Protocol
At which OSI layer is TCP?
Layer 4, or the Transport layer
Which protocol provides for fast (but not guaranteed) delivery of infor-
mation?
UDP, or User Datagram Protocol
What does UDP stand for?
User Datagram Protocol
At which OSI layer is UDP?
Layer 4, or the Transport layer
At which OSI layer do we fi nd segments?
Layer 4, or the Transport layer
What is the Protocol Data Unit at OSI layer 4?
Segment.
What is layer 3 of the OSI model?
The Network layer
What layer number is the Network layer of the OSI model?
3
At which OSI layer is the Internet?
Layer 3, or the Network layer
At which OSI layer are Wide Area Networks?
Layer 3, or the Network layer
What does WAN stand for?
Wide Area Network
At which OSI layer is IP Addressing?
Layer 3, or the Network layer
At which OSI layer is Logical Addressing?
Layer 3, or the Network layer
At which OSI layer does a gateway operate?
Layer 3, or the Network layer
At which OSI layer is Network Address Translation?
Layer 3, or the Network layer
At which OSI layer does a router operate?
Layer 3, or the Network layer
At which OSI layer is Port Address Translation?
Layer 3, or the Network layer
At which OSI layer do we nd packets?
Layer 3, or the Network layer
What is the Protocol Data Unit at OSI layer 3?
Packet.
What is layer 2 of the OSI model?
The Data Link layer
What layer number is the Data Link layer of the OSI model?
2
What does MAC stand for?
Media Access Control
How does a typical laptop computer discover its own MAC address?
It already knows it. It is electronically stored on the firmware of the EEPROM of the NIC.
At which OSI layer is the Local Area Network?
Layer 2, or the Data Link layer
At which OSI layer is MAC Addressing?
Layer 2, or the Data Link layer
At which OSI layer is Physical Addressing?
Layer 2, or the Data Link layer
At which OSI layer is Ethernet?
Layer 2, or the Data Link layer
At which OSI layer does a switch operate?
Layer 2, or the Data Link layer
Ex
At which OSI layer does a bridge operate?
Layer 2, or the Data Link layer
What is a multi-port bridge called?
Switch.
What is a two-port switch called?
Bridge.
At which OSI layer do we fi nd frames?
Layer 2, or the Data Link layer
What is the Protocol Data Unit at OSI layer 2?
Frame.
What is layer 1 of the OSI model?
The Physical layer
What layer number is the Physical layer of the OSI model?
1
What is a multi-port repeater called?
Hub.
What is a two-port hub called?
Repeater.
At which OSI layer does a hub operate?
Layer 1, or the Physical layer
At which OSI layer does a signal repeater operate?
Layer 1, or the Physical layer
At which OSI layer do we find bits?
Layer 1, or the Physical layer
What is the Protocol Data Unit at OSI layer 1?
Bits.