Encryption

9.Which wireless encryption protocol is dedicated specifically for Wi-Fi security?

10.In symmetric encryption, how can the secret key be shared securely without sending it electronically?

11.What is a key difference between symmetric and asymmetric encryption?

12.Which of the following is an example of encryption on a wired network?

13.A wireless network uses a master key derived from the SSID and password. How does this master key secure data transmitted over the network?

14.In asymmetric encryption, a sender encrypts a message using the recipient's public key. Which key is required to decrypt the message?

15.What is the term for data before it is encrypted?

16.What is the term for data after it has been encrypted?

17.Which of the following best describes symmetric encryption?

18.A 100-bit key can generate approximately 1.27 × 10³⁰ different combinations. Why does this make encryption secure?

19.Why is encryption especially important on wireless networks compared to wired networks?

20.A student is investigating how the strength of encryption depends on key size. They encrypt the same message using keys of different lengths and time how long it takes for a computer to decrypt the ciphertext without the key. Which of the following is the independent variable in this experiment?

21.A researcher wants to test the security of a symmetric encryption algorithm. They encrypt a known plaintext with a 128-bit key, then give the ciphertext to a hacker who tries all possible keys to recover the plaintext. Which of the following best describes this experiment?

22.Which of the following is the term for data before it is encrypted?

23.Which of the following is the term for data after it has been encrypted?

24.In symmetric encryption, which of the following is used to both encrypt and decrypt data?

25.A student sets up a wireless network with WPA2 encryption. They connect two devices using the same SSID and password. Which of the following best describes how the master key is used?

26.Which of the following best describes why encryption is especially important on wireless networks compared to wired networks?

27.What is the name of the dedicated protocol specifically designed for Wi-Fi security?

28.A company uses asymmetric encryption to secure emails. An employee wants to send a confidential message to a colleague. Which sequence of steps is correct?

29.In symmetric encryption, which key is used to encrypt and decrypt data?

30.A 100-bit key can generate 1,267,650,600,228,229,401,496,703,205,376 different combinations. Which of the following best explains why this makes encryption secure?

31.A researcher wants to test the security of a symmetric encryption algorithm. They encrypt a known plaintext with a 128-bit key, then give the ciphertext to a hacker. Which of the following is the most effective attack method for the hacker to recover the plaintext?

32.A student is investigating how the strength of encryption depends on key size. They encrypt the same message using keys of different lengths and time how long it takes for a computer to decrypt by brute force. Which graph best shows the relationship between key size and decryption time?

33.In an experiment to test the strength of symmetric encryption, a student encrypts the same plaintext using keys of different lengths. They measure the time taken to encrypt and decrypt. Which of the following is the most likely outcome?

34.A student sets up a wireless network with WPA2 encryption. They notice that the master key is never transmitted over the air. How do the devices obtain the same master key?

35.A researcher wants to test the security of a symmetric encryption algorithm. They encrypt a known plaintext with a 128-bit key, then give the ciphertext to a hacker. Which of the following best describes what the hacker would need to do to recover the plaintext?

36.Which of the following best describes the purpose of encryption?

37.In asymmetric encryption, which key is used to decrypt a message?

38.A student investigates how the strength of encryption depends on key size. They encrypt the same message using keys of different lengths and time how long it takes to encrypt. Which graph would best represent the relationship between key size (bits) and encryption time?

39.A student configures a wireless router with WPA2 encryption. Two devices connect using the same SSID and password. Which of the following best describes how the master key is used?

40.What is the term for data before it has been encrypted?

41.Symmetric encryption uses two different keys: a public key and a private key.

42.In asymmetric encryption, the private key is kept secret by the owner.

43.In asymmetric encryption, if a hacker intercepts the public key, they can decrypt messages encrypted with that public key.

44.Match each term to its correct description.

45.Place the steps for asymmetric encryption in the correct order.

46.Which of the following are true about symmetric encryption? (Select all that apply)

47.What is the name of the dedicated protocol designed specifically for Wi-Fi security?

48.In asymmetric encryption, the public key is used to decrypt messages.

49.A wireless network uses a master key derived from the SSID and password. Which of the following best describes how this master key is used?

50.A company uses symmetric encryption to secure its internal emails. The IT department needs to distribute the secret key to a new employee in a different city. Which method is the most secure way to share the key?

51.A 100-bit key can generate 1,267,650,600,228,229,401,496,703,205,376 different combinations. How many combinations does a 1-bit key generate?

52.A key using 100 bits generates 1,267,650,600,228,229,401,496,703,205,376 different combinations. How many combinations does a 1-bit key generate?

53.Complete the sentence using the correct terms from the list: plain, cipher, algorithm, key.

54.Explain why encryption is especially important on wireless networks compared to wired networks.

55.A 100-bit key can generate 1,267,650,600,228,229,401,496,703,205,376 different combinations. How many different combinations does a 1-bit key generate?

56.Describe the difference between symmetric and asymmetric encryption. Include the number of keys and how they are used.

57.A 100-bit key can generate 1,267,650,600,228,229,401,496,703,205,376 different combinations. How many combinations does a 1-bit key generate?

58.A key using 100 bits generates 1,267,650,600,228,229,401,496,703,205,376 different combinations. How many combinations does a 1-bit key generate?

59.A 100-bit key can generate 1,267,650,600,228,229,401,496,703,205,376 different combinations. How many different combinations does a 1-bit key generate?