Class 8 Digital Technologies Suggestion PDF

Summary

This document is a collection of practice questions and learning experiences in digital technologies, suitable for a class 8 level. The topics covered include cybercrime, digital footprints, data transmission modes, and network devices.

Full Transcript

Learning Experience #2: 1. What is cybercrime? Explain two common types of cybercrime occurring today. 2. Define phishing. 3. What is a "digital footprint"? 4. What steps should you take if you receive an email promising a prize but requesting personal information? 5....

Learning Experience #2: 1. What is cybercrime? Explain two common types of cybercrime occurring today. 2. Define phishing. 3. What is a "digital footprint"? 4. What steps should you take if you receive an email promising a prize but requesting personal information? 5. Describe how phishing scams work and provide an example of their harmful effects on individuals. 6. Explain the concept of digital footprints, including how they are created and their potential long-term impacts. 7. Why is it essential to use strong and unique passcodes for devices? What are the risks of weak PIN codes? 8. Define metadata and explain how it helps verify the authenticity of digital data like images. Provide an example. Learning Experience #5: 1. How many possible input combinations are there for three binary inputs? 2. What is the output of the expression 10 % 2 in Python? 3. How many possible input combinations exist for two binary inputs? 4. What is the symbol for the logical OR/AND operation? 5. What is the output when both inputs in an AND operation are True? 6. What is the symbol for the logical AND operation? 7. What happens when both inputs in an OR operation are False? 8. Draw the truth table for a two-input OR operation. 9. Draw the truth table for a two-input AND operation. 10. Draw the truth table for a three-input OR operation. 11. Draw the truth table for a three-input AND operation. 12. Compare and contrast compilers and interpreters. 13. What are the rules for naming variables in Python? 14. Write a Python program to calculate the addition of two numbers. 15. Write a Python program to calculate the subtraction of two numbers. 16. What is a translator program, and why is it essential in computing? 17. What the difference between compiler and interpreter. Learning Experience #7: 1. Explain different types of data transmission modes. 2. Define the types of networks: LAN, PAN, MAN, and WAN. 3. What does bps stand for? 4. Provide the full forms of PAN, LAN, MAN, and WAN. 5. What device is needed to connect multiple computers to form a LAN? 6. What device is required to connect three or more networks? 7. What is the term for the time needed to send data (first byte) from one point to another? 8. Calculate the bandwidth when 1200 bits are transmitted in 3 seconds. 9. Where is the MAC address stored in a device? 10. Define protocol. 11. What is the full form of NIC? 12. Which device is used to send data to a specific location on a LAN? 13. How many bits are in 1 byte? 14. How many bytes are in 1 kilobyte (KB)? 15. A 10 KB file takes 2 seconds over a network. However, due to delays, a 20 KB file takes 5 seconds. Calculate the bandwidth and throughput of the network. 16. What are the differences between hub and switch? 17. What is router?

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