1- What is Internet?2- Remind four important applications of the Internet?3- What is the RFC?4- In Networking, what is the Switch?5- What are the three methods of Switching?6- What is Circuit Switching Network?7- What are the three phases in Circuit Switching Network? With explanation.8- The circuit-switched networks are not as efficient as the other two types of

networks (Packet Switch & Message Switch). Why?9- The delay in Circuit Switching Network is minimal! Why?10-Why Circuit Switches are suitable to be used for Telephone System?11-What is the main difference between Circuit Switch network and Datagram

Switch Network?12-When a Packet Switch Network uses for data communication, what is happening

for a message when send from the sender to the receiver?13-The efficiency of a datagram network is better than that of a circuit-switched

network. Why?14-There may be greater delay in a Packet Switch network than in a Circuit Switch

network. Why?15-Clarify, what is the Message Switching Network?16-What is the OSI Model?17-How many layers the OSI Model has? Remind Them.18-What is the Application Layer in the OSI Model?19-What are the responsibilities of the Presentation Layer in the OSI Model? Clarify

them.20-One of the responsibilities of the Presentation layer of the OSI Model is

Compression. What does mean Compression and why it is important?21-Remind four services provided by the Session layer in the OSI Model?22-What are the responsibilities of the Transport layer of the OSI Model?23-One of the responsibility of the Transport layer is Segmentation and Reassembly.

What does mean that?24-The Transport Layer managing the Transmission Speed and Follow Control. What

does mean that?25-What is the difference between Connection Oriented Transmission and

Connectionless Transmission?26-What are the features of the Connection Oriented Transmission and

Connectionless Transmission?27-What are the responsibilities of the Network Layer in the OSI model?

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28-What is the main difference between Transport Layer and Network Layer of the OSI model?

29-What are the functions of the Data Link Layer in the OSI model? Clarify three of them.

30-Remind four responsibilities of the Physical layer in the OSI model?31-What is the TCP/IP model?32-What are the protocols that are using in the Network Layer in the TCP/IP model?

Which protocol is the most important? Clarified it.33-What is Internetworking Protocol?34-What is the difference between the ARP and RARP protocol?35-What is the ICMP in the TCP/IP model?36-What is the difference between the IP and the UDP &TCP?37-Clarify the UDP in the TCP/IP Model? 38-Clarify the TCP in the TCP/IP model?39-

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