Discuss Alibaba ACA-Operator Exam Topic 3 Question 46

A developer needs to use some sensitive business data and operational data in the process of developing a program, but the data should be protected (encrypted or anonymized) as much as possible. In order to facilitate and secure management of data encryption keys, the developer can use Alibaba Cloud Key Management Service (KMS) envelope encryption technology. Which of these statements is NOT correct, regarding KMS?

ADevelopers can generate a plaintext data key and a ciphertext data key by calling the GenerateDataKey interface.

BEnvelope encryption is an encryption mechanism similar to digital envelope technology. The technology allows you to store, transfer and use encrypted data by encapsulating their Data Keys (DKs) in an envelope, instead of \y encrypting/decrypting data directly with Customer Master Keys (CMKs).

CThe user uses the master key created on KMS to encrypt and decrypt the generated data key.

DThe master key generated by KMS is also kept by the user.

Suggested Answer: A, B, C

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13 comments · newest first

Sylvia 11 months ago

Not sure about that, D seems off.

Fletcher 11 months ago

Wait, D? I thought the master key stays with KMS.

Martha 12 months ago

C sounds right to me.

Dino 12 months ago

Totally agree, B explains it well!

Lashawnda 1 year ago

A is correct, you can generate both keys.

Stephane 1 year ago

I’m a bit confused about the GenerateDataKey interface; I thought it was supposed to generate both keys, but I can't remember the details clearly.

Tuyet 1 year ago

I practiced a similar question about encryption methods, and I feel like the user shouldn't have direct access to the master key.

Micaela 1 year ago

I think option D sounds incorrect because I recall that KMS manages the master keys, so users shouldn't keep them.

Kristeen 1 year ago

I remember studying KMS and how it handles data keys, but I'm not entirely sure if the master key is kept by the user or not.

Azzie 1 year ago

Okay, I think I've got this. I'll click in cell L5, select the Formulas tab, and then use the AutoSum button to choose the AVERAGE function. Then I'll click on the cells for the region and representative to get the average.

Catarina 1 year ago

Option D sounds right to me. The salience model is all about identifying the most important stakeholders based on their level of power, urgency, and legitimacy in relation to the project.

Raymon 1 year ago

Hmm, I'm a bit confused on the different AP modes here. I'll need to review the details of each one to determine which one would be best for this scenario.

Lavera 1 year ago

This looks like a straightforward question about the structure of a SOAP message. I'm pretty confident I can identify the correct parts.

Alibaba ACA-Operator Exam - Topic 3 Question 46 Discussion