Exam AWS Certified SAP on AWS - Specialty PAS-C01 topic 1 question 52 discussion

The SAP license key is tied to a hardware key, which is generated based on the system’s hardware and OS configuration. In virtualized environments like Amazon EC2, some of these parameters might change, causing the hardware key to change and making the SAP license key invalid. By setting the SLIC_HW_VERSION environment variable, you can ensure that the hardware key remains constant even if the underlying hardware or OS configuration changes. This will prevent the SAP license key from becoming invalid in the future. Please note that you may need to restart the SAP system after setting this environment variable for the changes to take effect.

I vote for C

It is C as per the SAP Note 1178686 Extended algorithm (SLIC_HW_VERSION = 2)

It is C

C: In certain cases, the hardware key can change even when there have been no changes to the EC2 instance or its configuration. This situation can cause the SAP license to become invalid. To prevent the hardware key from changing, you should set the Linux environment variable SLIC_HW_VERSION to the desired value. This value ensures a constant hardware key and prevents the SAP license from becoming invalid.

A. WRONG because the newly install SAP instance updated the kernel (invalidating thus likely invalidating the license) B. CORRECT, because the newly installed SAP instance generated a new hardware key, so a new key matching the new key must be installed C. WRONG Setting the SLIC_HW_VERSION Linux environment variable will not resolve this issue D. WRONG, Rebooting the EC2 instance will not resolve this issue. B. Is correct in the context of the scenario in question assuming that the newly installed SAP instance updated the kernel. RE: If a hardware key is generated before patching the SAP kernel installed license will invalid. This mean kernel patches will always invalidate a license key. https://docs.aws.amazon.com/sap/latest/general/overview-sap-on-aws.html

A. WRONG because the newly install SAP instance updated the kernel (invalidating thus likely invalidating the license) B. CORRECT, because the newly installed SAP instance generated a new hardware key, so a new key matching the new key must be installed C. WRONG Setting the SLIC_HW_VERSION Linux environment variable will not resolve this issue D. WRONG, Rebooting the EC2 instance will not resolve this issue. B. Is correct in the context of the scenario in question assuming that the newly installed SAP instance updated the kernel. RE: If a hardware key is generated before patching the SAP kernel installed license will invalid. This mean kernel patches will always invalidate a license key. https://docs.aws.amazon.com/sap/latest/general/overview-sap-on-aws.html

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Check Appendix C in https://d0.awsstatic.com/enterprise-marketing/SAP/sap-on-aws-high-availability-guide.pdf

Answer is C: SAP software is secured by a license using a hardware key (customer key). As described in SAP note 174911,"" this hardware key is based upon a MAC address of a network card in your Linux system"". In certain situations the algorithm can pick a different network card than it used for calculation before, thus returning a different hardware key. SAP Note 1178686

Answer is B. The fact that the hardware key is regenerated is due to an update of the kernel. Since the kernel is already patched, there is no need to patch it again.

A) is only a prerequisite, not a solution B) is not a permanent solution as asked in the question C) Yes, see SAP note 2184871 D) Rebooting the EC2 instance does not solve the license issue

B. Apply a new SAP license that uses a new hardware key. Install the new key.

A because simply applying a new license will result in an invalid license later on again. As said in https://docs.aws.amazon.com/sap/latest/general/overview-sap-on-aws.html you need to apply a proper kernel patch before applying the license to PERMANENTLY solve the issue.

B https://docs.aws.amazon.com/sap/latest/general/overview-sap-on-aws.html