URL Structure and Function (4 marks)
Describe the structure of a URL and discuss the role and function of a web browser in using URLs to access web content.
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Questions
Domain Name System (DNS) Servers (4 marks)
Explain the purpose of Domain Name System (DNS) servers and describe how they function within a network.
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Calculation of Routing Costs (2 marks)
Describe how routing costs are calculated and discuss one factor that might influence the cost of routing data in a network.
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Routing Methods in Networks (2 marks)
Identify and explain two methods of routing traffic on a network.
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Packet Switching in Networks (3 marks)
Explain the concept of packet switching and discuss its role in data transmission across networks.
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Contents of a TCP/IP Packet (4 marks)
Describe the typical contents of a TCP/IP packet. List and briefly explain four main components found in a TCP/IP packet.
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WiFi Standards (2 marks)
Describe the purpose of the WiFi (802.11) standards and explain how it fits into the OSI model.
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Secure Communication Protocols (3 marks)
Explain the importance of HTTPS in secure communications. Compare it with HTTP in terms of functionality and security.
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IP and Ethernet in Network Communications (4 marks)
Describe the roles of IP and Ethernet in network communications, indicating which OSI layer each operates in and how they contribute to data transmission.
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Networking Protocols in the OSI Model (4 marks)
Match each of the following protocols to the correct layer(s) of the OSI model they primarily operate in: HTTP, SMTP, FTP, and TCP. Provide a brief explanation for each.
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