Computer Networking
Which of the following are TCP/IP protocols used at the Application layer of the OSI model?1. IP2. TCP3. Telnet4. FTP5. TFTP

1 and 3
3, 4 and 5
All of these
1, 3 and 5

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Computer Networking
Carrier is

a continuous frequency capable of being modulated or impressed with a second signal
One or more conductors that serve as a common connection for a related group of devices
the condition when two or more sections attempt to use the same channel at the same time
None of these
a collection of interconnected functional units that provides a data communications service among stations attached to the network

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Computer Networking
ARP (Address Resolution Protocol) is

a protocol used to monitor computers
a TCP/IP protocol used to dynamically bind a high level IP Address to a low-level physical hardware address
a protocol that handles error and control messages
a TCP/IP high level protocol for transferring files from one machine to another
None of these

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Computer Networking
The network layer, in reference to the OSI model, provide

None of these
data link procedures that provide for the exchange of data via frames that can be sent and received
All of these
the virtual circuit interface to packet-switched service
the interface between the X.25 network and packet mode device

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