Helping Hand Questions for CCSK

Centralized logging aggregates logs in one location, making it easier to monitor, analyze, and comply with regulatory requirements. Reference: [Security Guidance v5, Domain 6 - Security Monitoring]

The shared responsibility model is a key concept in cloud security. According to the CSA Security Guidance v4.0, Domain 1, Section 1.2.1, the responsibility for security is shared between the cloud provider and the customer, depending on the service model (IaaS, PaaS, SaaS).

Specifically:

"Infrastructure as a Service: Just like PaaS, the provider is responsible for foundational security, while the cloud user is responsible for everything they build on the infrastructure."

"At a high level, security responsibility maps to the degree of control any given actor has over the architecture stack."

This means the cloud provider handles the physical security (data center, servers, etc.), while the customer is responsible for securing the workloads they deploy on the infrastructure, such as their applications, data, configurations, and access controls.

Incorrect Options:

B is incorrect because providers do not manage your workload or data security.

C is false – both parties share responsibilities.

D is incorrect because customers do not manage the cloud’s physical infrastructure.

Differential privacy is a strategy designed to protect data confidentiality by ensuring that the output of a machine learning model does not expose sensitive information about individual data points. In the context of model inversion attacks, where attackers try to infer confidential data from the model, differential privacy introduces noise into the model’s output in a way that prevents attackers from accurately reconstructing the input data. This helps safeguard against attacks that threaten the privacy of the data used to train the model.

Secure multi-party computation is useful for enabling collaborative computation on encrypted data but does not specifically address model inversion attacks. Encryption is important for securing data at rest or in transit but does not directly protect against model inversion attacks. Model hardening refers to general measures to make models more robust to adversarial attacks, but it does not directly mitigate the specific risk of model inversion attacks related to data confidentiality.

The primary function ofData Encryption Keys (DEK)in cloud security is toencrypt application data. DEKs are used to encrypt and decrypt specific data objects, such as files or database records, ensuring data confidentiality in cloud environments.

From theCCSK v5.0 Study Guide, Domain 10 (Data Security and Encryption), Section 10.3:

“Data Encryption Keys (DEKs) are used to encrypt and decrypt application data in cloud environments. DEKs are typically managed by key management services and applied to specific data objects to ensure confidentiality and protect against unauthorized access.”

Option B (To encrypt application data) is the correct answer.

Option A (Increase speed) is incorrect because encryption does not enhance performance.

Option C (Manage user access control) is incorrect because DEKs are for encryption, not access control.

Option D (Primary key for all resources) is incorrect because DEKs are specific to data encryption, not resource management.