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OSI MODEL
Understanding the Open Systems Interconnection Model
12
Computer Networking
Undergraduate 1
12/07/2015
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Term
Which OSI layer accepts the frame from the Data Link layer and converts the frame into bits for transmission over the physical connection medium?
 Definition
The Physical Layer
Term
Which OSI layer is responsible for receiving bits from the physical connection medium and converting them into a frame to be used by the Data Link layer?
 Definition
The Physical Layer
Term
Which OSI layer contains the device drivers that tell the protocol how to employ the hardware for the transmission and reception of bits?
 Definition
The Physical Layer
Term
The following protocols operate at which OSI layer? EIA/ TIA-232 and EIA/ TIA-449 X. 21 High-Speed Serial Interface (HSSI) Synchronous Optical Network (SONET) V. 24 and V. 35
 Definition
The Physical Layer
Term
At what layer of the OSI model do protocols control throughput rates, handle synchronization, manage line noise and medium access, and determine whether to use digital or analog signals or light pulses to transmit or receive data over the physical hardware interface?
 Definition
The Physical Layer
Term
Network interface cards (NICs), hubs, repeaters, concentrators, and amplifiers are examples of devices that operate at which layer of the OSI model?
 Definition
The Physical Layer
Term
Switches and routers are devices that operate at which level of the OSI model?
 Definition
The Data Link Layer.
Term
Which layer of the OSI model is responsible for formatting the packet from the Network layer into the properly formatted frame for transmission through the Physical Layer?
 Definition
The Data Link Layer
Term
Serial Line Internet Protocol (SLIP) Point-to-Point Protocol (PPP) Address Resolution Protocol (ARP), Reverse Address Resolution Protocol (RARP), Integrated Services Digital Network (ISDN)are protocols found at which level of the OSI model?
 Definition
The Data Link Layer
Term
a terminal emulation network application that supports remote connectivity for executing commands and running applications but does not support transfer of files.
 Definition
Telnet. Port 23.
Term
a network application that supports an exchange of files that requires anonymous or specific authentication.
 Definition
FTP. TCP Port 20 and 21.
Term
a network application that supports an exchange of files that does not require authentication.
 Definition
Trivial File Transfer Protocol (TFTP). UDP Port 69.
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