Task 11 - Network Theory Test (2).docx

**Assessment type: Theory test** **Name: \_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_** **Marks: \_\_\_\_\_ / 37** **Conditions** Time for the task: One period in class **Task weighting** 5% of the school mark for this pair of units \_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_...

**Assessment type: Theory test** **Name: \_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_** **Marks: \_\_\_\_\_ / 37** **Conditions** Time for the task: One period in class **Task weighting** 5% of the school mark for this pair of units \_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_ **\ ** **Question 1. \[2\]**\ Define the term "network" in terms of computers and transmission media. -- -- **Question 2. \[1\]**\ Define the term "transmission media". -- -- **Question 3. \[3\]**\ List three types of transmission media. +-----------------------------------------------------------------------+ | 3. | +=======================================================================+ | 1. | +-----------------------------------------------------------------------+ | 2. | +-----------------------------------------------------------------------+ **\ ** **Question 4. \[5\]**\ Define the term "protocol". -- -- Name ONE type of real world protocol **not involving computers**. -- -- Name TWO examples of computer network protocols. +-----------------------------------------------------------------------+ | 2. | +=======================================================================+ | 1. | +-----------------------------------------------------------------------+ **Question 5. \[4\]**\ Speed can be measured in different ways with respect to computer communications.\ Define the terms "bandwidth" and "latency" and explain how each is relevant in the speed of networks. Bandwidth definition: ----------------------- Bandwidth relevance: Latency definition: Latency relevance: **Question 6. \[4\]**\ Explain the role of the following pieces of network hardware: **Hardware** **Explanation of role** --------------------------- ------------------------- **Network Switch** **Router** **Wireless Access Point** **Firewall** **Question 7. \[2\]**\ Explain two criteria that could be used for determining the reliability of a network. +-----------------------------------------------------------------------+ | 2. | +=======================================================================+ | 1. | +-----------------------------------------------------------------------+ **\ ** **Question 8. \[2\]**\ Explain the role of passwords in personal security. -- -- Explain how **multi-factor authentication** improves personal security. -- -- **Question 9. \[3\]**\ Define the term **encryption** and its role in network security. **Definition:** ------------------------------- **Role in network security:** **\ ** **Question 10. \[2\]**\ Explain how **encryption** is different from **hashing**. -- -- **Question 11. \[3\]**\ Explain what a **proxy** is, and TWO features which make them useful in computer networks. Definition: ------------- Feature 1: Feature 2: **\ ** **Question 12. \[3\]**\ List THREE examples of **network peripherals**. +-----------------------------------------------------------------------+ | 3. | +=======================================================================+ | 1. | +-----------------------------------------------------------------------+ | 2. | +-----------------------------------------------------------------------+ **Question 13. \[3\]**\ List THREE roles of **Internet Service Providers** (ISPs). +-----------------------------------------------------------------------+ | 3. | +=======================================================================+ | 1. | +-----------------------------------------------------------------------+ | 2. | +-----------------------------------------------------------------------+ **END OF TEST** **Peer to Peer** **Gateway** **File Server** **User profile** **Router** ----------------------------- -------------- ----------------- ------------------ ------------------ **Virtual Private Network** **Topology** **Encryption** **Compression** **Transmission**