Question

1. (01.05 mc)

which of the following is true of symmetric key encryption? (2 points)
○ it uses one key. both parties must have access to the key.
○ it uses one key. only the sender has access to the key.
○ it uses two different keys. one party has access to one key, and the other party has access to the other key.
○ it uses two different keys. both parties must have access to the keys.

1. (01.05 lc)

which of the following do websites put on your device to save information about your visit? (2 points)
○ texts

Explanation:

Question 4

In symmetric key encryption, a single shared key is used for both encryption and decryption. For the communication to work, both the sender (to encrypt) and the receiver (to decrypt) need access to this same key. The other options are incorrect: option B is wrong because the receiver also needs the key; options C and D describe asymmetric key encryption (which uses two different keys), not symmetric.

Question 5 (assuming the full options likely include "Cookies" as the correct answer, since the visible option "Texts" is incorrect)

Websites place cookies on a user's device. Cookies are small data files that store information about a user's visit, like preferences or session data. "Texts" are not used for this purpose; typical options here would include "Cookies" as the correct choice for storing visit - related info.

(Note: Since the full options for question 5 are not visible, the above is based on typical knowledge of web technologies. If the actual options have a different correct choice, adjust accordingly.)

Answer:

A. It uses one key. Both parties must have access to the key.