You need to transmit PII via email and you want to maintain its confidentiality. Which of the following choices is the BEST solution?a. Use hashes. b. Encrypt it before sending. c. Protect it with a digital signature. d. Use RAID.

Suppose we have a byte addressable computer that has a 32-byte cache with 8 bytes per block. the memory address is 8 bits long. the system accesses memory addresses (in hex) in this exact order: 6e, b9, 17, e0, 4e, 4f, 50, 91, a8, ab, ad, 93, and 94. (a) assuming the cache is direct mapped, what memory addresses will be in cache block 2 after the last address has been accessed? (b) assuming the cache is direct mapped, what is the hit ratio for the entire memory reference sequence given, assuming the cache is initially empty? (c) assuming the cache is 2-way set associative with a lru replacement policy, what is the hit ratio?

These factors limit the ability to attach files to e-mail messages. location of sender recipient's ability to open file size of file type of operating system used

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