Summative Assessment for the Section (SOR)
Subject: Computer Science
Grade: 11
Section: Communication and network
Total marks: 20
Learning Objectives:
- Compare features of local (LAN) and wide area networks (WAN).
- Describe the advantages and disadvantages of network topologies: bus, ring, star, mixed.
- Explain the purpose of network equipment.
- Describe the role of universal resource locator (URL).
- Describe the purpose and organization of a domain name system (DNS).
- Explain the features of the client-server model.
- Explain the role of protocols in the network (HTTP, FTP, POP3, SMTP, HTTPS, FTPS).
- Explain the format of the IP address and how the IP address is connected to the device on the network.
- Explain the differences between public and private IP addresses and how they affect security.
Variant 1
Task 1. Comparison of networks and topologies (6 marks)
1.1. Compare LAN and WAN by filling in the table. (3 marks)
| Feature | LAN | WAN |
|---|---|---|
| Geographical coverage | ||
| Typical data transfer speed | ||
| Ownership of infrastructure |
1.2. A small office uses a network where all computers are connected to a central switch. If one computer's cable fails, the others continue to work. However, if the central device fails, the entire network stops.
a) Name the topology used in this office. (1 mark)
b) State one advantage and one disadvantage of this topology based on the description. (2 marks)