What is Pervasive Encryption running z/OS on IBM Z?

Question

Options

• AEncryption of only data in-flight
• BEncryption of data in-flight and at-rest
• CEncryption of all types of data on IBM Z
• DEncryption of only data at-rest

• A
  2% (1)
• B
  90% (56)
• C
  5% (3)
• D
  3% (2)

Explanation

Pervasive Encryption on IBM Z covers both data in-flight (data moving across networks) and data at-rest (data stored on disk, tape, or other media), leveraging IBM Z's built-in cryptographic hardware to make broad encryption practical without performance penalties. Option A is wrong because limiting encryption to only in-flight data would leave stored data exposed - that's just TLS/transport security, not a pervasive strategy. Option D is the mirror mistake: encrypting only at-rest data leaves data vulnerable during transmission. Option C is tempting but overclaims - "all types of data" is too absolute, since Pervasive Encryption is specifically defined around the in-flight and at-rest dimensions, not every conceivable data category. Memory tip: Think of the word pervasive - it covers both directions data can exist: moving (in-flight) and sitting still (at-rest). If it's not covering both, it's not pervasive.

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