C1000-038 · Question #30
A customer wants to replace two zEC12 processors in different locations with two z14 processors. The customer has the following requirements: - Full redundancy within a z14 and in case of loss of…
The correct answer is C. 2 TKEs, 6 Crypto Express 6S Features, CPACF enabled. Option C is correct because EP11 support requires TKEs (Trusted Key Entry workstations) to initialize and manage EP11 coprocessors - without them, EP11 simply cannot function. The 6 Crypto Express 6S features provide the minimum count needed to achieve full intra-CPC redundancy…
Question
A customer wants to replace two zEC12 processors in different locations with two z14 processors. The customer has the following requirements:
- Full redundancy within a z14 and in case of loss of one CPC.
- Run 12 z/OS LPARs on each CPC.
- Encryption requirements:
- Some applications need SSL acceleration.
- EP11 must be supported.
- Pervasive Encryption must be supported.
Which of the following is the minimum hardware needed for each z14 to support the requirements?
Options
- A4 zHyperlink Express Ports, 8 Crypto Express 6S Features, CPACF enabled.
- B4 Crypto Express 6S Features, CPACF enabled.
- C2 TKEs, 6 Crypto Express 6S Features, CPACF enabled.
- D8 Crypto Express 6S Features, CPACF enabled.
How the community answered
(27 responses)- A19% (5)
- B7% (2)
- C67% (18)
- D7% (2)
Explanation
Option C is correct because EP11 support requires TKEs (Trusted Key Entry workstations) to initialize and manage EP11 coprocessors - without them, EP11 simply cannot function. The 6 Crypto Express 6S features provide the minimum count needed to achieve full intra-CPC redundancy across books for 12 LPARs, and CPACF is the engine behind Pervasive Encryption (bulk at-rest encryption).
Why the distractors fail:
- A is wrong because zHyperlink Express Ports handle high-speed coupling between CPCs - they play no role in encryption or intra-CPC crypto redundancy, making them unnecessary overhead here.
- B is wrong because 4 Crypto Express 6S features fall short of the minimum needed for full redundancy across 12 LPARs, and critically, no TKEs are included, so EP11 cannot be managed.
- D is wrong for the same reason as B - the 8 Crypto Express 6S features actually exceed the minimum, but the absence of TKEs is a disqualifying omission for EP11 support.
Memory tip: Think "No TKE = No EP11." Whenever a question lists EP11 as a requirement, immediately eliminate any answer that omits TKEs - this single rule knocks out B and D instantly, and leaves you choosing between A and C based on whether zHyperlink makes sense for the scenario.
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