CCSK Exam Dumps - Cloud Security Alliance Cloud Security Knowledge Questions and Answers

The shared security responsibility model in cloud environments clarifies that CSPs and CSCs both have roles, with specific responsibilities varying based on the service model (IaaS, PaaS, SaaS). In IaaS, CSCs handle more security, while CSPs manage most security in SaaS. Reference: [CCSK Study Guide, Domain 1 - Cloud Security Scope and Responsibilities][16†source].

The key outcomes of implementing robust cloud risk management practices focus on ensuring the security and resilience of cloud environments. This involves identifying, assessing, and mitigating risks associated with the use of cloud services, such as security threats, data privacy issues, and service availability concerns. By adopting strong risk management practices, organizations can better protect their data, ensure business continuity, and maintain compliance with regulations, which ultimately strengthens the overall security and reliability of their cloud environments.

Negotiating shared responsibilities is an important aspect of cloud security but is not the direct outcome of risk management practices. It's about clarifying roles between the customer and provider. Transferring compliance to the cloud service provider via inheritance is not the complete picture. While cloud service providers may help with compliance, the responsibility for compliance and risk management is still shared. Reducing the need for compliance withregulatory requirements is incorrect. Robust risk management practices help ensure compliance with regulatory requirements, not reduce the need for them.

Correct Option: A. Virtual Local Area Networks (VLANs)

VLANs are widely used in cloud and traditional environments to provide logical separation of network traffic. In a multi-tenant cloud environment, VLANs help ensure that one customer's network traffic is isolated from another’s, providing a key layer of segmentation and security.

From CSA Security Guidance v4.0 – Domain 7: Infrastructure Security:

“To isolate tenants in multi-tenant environments, cloud providers often rely on mechanisms such as VLANs, VXLANs, or other software-defined networking technologies. VLANs ensure that different customer environments remain logically separated even though they share the same physical infrastructure.”

— Domain 7: Infrastructure Security, CSA Security Guidance v4.0

Why the Other Options Are Incorrect:

B. Resource pooling➤ Refers to shared infrastructure in the cloud. It enables multi-tenancy but does not enforce separation between tenants.

C. Software-defined networking (SDN)➤ SDN provides flexibility and programmability in networking. While it can support separation, VLANs are the actual mechanism used for enforcing it.

D. Elasticity➤ Elasticity refers to scaling resources up/down based on demand. It has nothing to do with tenant isolation or network separation.

Network segmentation isolates sections of the network, limiting the spread of a breach and containing it to a specific segment. Reference: [Security Guidance v5, Domain 7 - Infrastructure & Networking]

Encryption in object storage is used to secure stored data and protect it from unauthorized access, ensuring confidentiality. Reference: [Security Guidance v5, Domain 9 - Data Security]

The principle of least privilege limits access to only necessary permissions, reducing the risk of misuse and exposure of sensitive data. Reference: [CCSK v5 Curriculum, Domain 5 - IAM]