CCSK Exam Dumps - Certificate of Cloud Security Knowledge v5 (CCSKv5.0)

Elasticity of cloud resources is a key feature that directly contributes to enhanced performance and resource utilization while avoiding excess costs. Cloud elasticity allows resources (such as compute power, storage, and network bandwidth) to automatically scale up or down based on demand. This ensures that organizations are only using the resources they need at any given time, optimizing both performance and cost-efficiency.

Fixed resource allocations do not provide the flexibility needed to optimize resource utilization and can lead to either over-provisioning (wasting resources) or under-provisioning (affecting performance). Unlimited data storage capacity is not typical in all cloud environments and does not directly impact resource optimization or performance. Increased on-premise hardware is unrelated to cloud workload security, as it refers to traditional, non-cloud infrastructure.

Endpoint Detection and Response (EDR)is acritical security tool for cloud environmentsthatmonitors, detects, and responds to endpoint threats.

Why EDR is Essential for Cloud Security?

Real-Time Threat Detection & Response

EDRcontinuously monitors endpoint activity(e.g., cloud VMs, servers, containers).

Detectsanomalous behavior, malware, and unauthorized access attempts.

Automated Remediation & Forensics

UsesMachine Learning (ML) & AItoanalyze cloud endpoint telemetry.

Supportsautomated response actions (isolating infected endpoints, rolling back malicious changes).

Cloud-Native Security Integration

Works withCloud Security Information and Event Management (SIEM) and Security Orchestration, Automation, and Response (SOAR).

Enables proactive threat hunting in hybrid and multi-cloud environments.

Complements Other Cloud Security Tools

WAF (Web Application Firewall)protects againstweb-based attacks (OWASP Top 10)but doesnot provide endpoint security.

UTM (Unified Threat Management)is more suited fortraditional perimeter security (firewalls, IPS/IDS).

IDS (Intrusion Detection System)only detects threats, whereasEDR actively responds to them.

This aligns with:

CCSK v5 - Security Guidance v4.0, Domain 7 (Infrastructure Security)

Cloud Controls Matrix (CCM) - Endpoint Security Controls​.

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.

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]

Multiple independent deployments help isolate workloads, reducing the potential impact of a breach by confining it to a single deployment environment. Reference: [Security Guidance v5, Domain 7 - Infrastructure & Networking]

Infrastructure as Code (IaC)facilitates rapid recovery in cybersecurity by enablingautomated and consistent deployment of recovery environments. IaC allows organizations to define infrastructure configurations as code, which can be versioned, tested, and deployed quickly to rebuild environments after an incident, ensuring consistency and reducing recovery time.

From theCCSK v5.0 Study Guide, Domain 11 (Incident Response and Recovery), Section 11.4:

“Infrastructure as Code (IaC) enhances rapid recovery by allowing organizations to automate the deployment of infrastructure and applications. By defining recovery environments as code, organizations can quickly and consistently rebuild systems after a security incident, minimizing downtime and ensuring operational continuity.”

Option B (IaC enables automated and consistent deployment of recovery environments) is the correct answer.

Option A (IaC is primarily used for designing network security policies) is incorrect because IaC focuses on infrastructure deployment, not policy design.

Option C (IaC provides encryption and secure key management) is incorrect because IaC does not directly handle encryption or key management.

Option D (IaC automates incident detection and alerting) is incorrect because IaC is not used for detection or alerting.