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Answer : A

Answer : D

Access policies in cybersecurity are critical for managing and controlling how users and devices access resources within a network or cloud environment. These policies are primarily concerned with defining permissions and rules that govern access to resources. They help organizations implement role-based access control (RBAC) or attribute-based access control (ABAC), which specify who can access what resources and under what conditions.

In the context of cloud computing, access policies are typically enforced using Identity and Access Management (IAM) tools and services, which allow administrators to define and manage the permissions associated with user identities. Access policies include various rules that specify allowed or denied actions based on roles, user attributes, device types, or network conditions.

For example, in the AWS environment, access policies are written in JSON and define permissions for services like EC2, S3, or RDS. Similarly, Azure uses Role-Based Access Control (RBAC) to manage resource access policies.

Access policies are not concerned with real-time monitoring (option A), user authentication methods (option B), or encryption protocols (option C). Instead, they explicitly focus on defining access permissions and controlling how resources are utilized.

CSA Security Guidance v4.0, Domain 12: Identity, Entitlement, and Access Management

Cloud Computing Security Risk Assessment (ENISA) - Identity and Access Management section

Cloud Controls Matrix (CCM) v3.0.1 - IAM Domain

Answer : B

Volume storage encryption protects data at rest stored on virtual disks in cloud environments.

''Encryption of storage volumes protects data at rest by ensuring that unauthorized users who gain access to the storage infrastructure cannot read the data without encryption keys.''

--- CSA Security Guidance v4.0 -- Domain 11: Data Security and Encryption

Encryption helps maintain:

Confidentiality and integrity of stored data

Compliance with data protection regulations (e.g., GDPR, HIPAA)

CSA Security Guidance v4.0 -- Domain 11: Data Security and Encryption

Answer : B

Using IAM roles/identities provided by cloud providers instead of static secrets (like passwords or API keys) significantly reduces the risk of credential leakage. IAM roles enable dynamic and temporary credentials, meaning that they are automatically rotated and do not need to be manually stored or managed. This eliminates the need for hardcoding sensitive credentials into code or configuration files, which can often lead to accidental exposure or misuse if not properly secured.

Lowering storage costs is not a direct benefit of using IAM roles over static secrets. Facilitating data encryption is important for security, but IAM roles are not specifically focused on data encryption. Improving system performance is not a primary benefit of using IAM roles over static secrets. The main advantage is security-related, specifically the reduction in credential leakage risks.

Answer : C