Cloud Security Alliance CCSK - Certificate of Cloud Security Knowledge (CCSKv5.0)

In the context of Function as a Service (FaaS), trigger events are primarily defined in addition to the functions themselves. FaaS allows you to run individual functions in response to events, such as HTTP requests, file uploads, database changes, or messages in a queue. These trigger events initiate the execution of the serverless function, making them a core part of FaaS architecture.

Data storage is not directly defined by FaaS, as storage is typically managed separately (e.g., cloud storage or databases). Network configurations are not the main focus of FaaS, since cloud providers manage the underlying network infrastructure. User permissions may be relevant but are typically handled through identity and access management (IAM), not directly tied to the definition of a FaaS function.

One of the biggest challenges incloud security risk assessmentisthe lack of transparencyregardingcloud provider operations and security controls.

Key Issues with Limited Visibility:

Cloud providers manage infrastructure at a global scale:

Customerscannot directly inspectsecurity implementations.

Rely onthird-party attestationslikeSOC 2, ISO 27001, CSA STARinstead of direct assessments.

Multi-tenancy complexities:

Cloud customersshare infrastructurewith other tenants.

Data isolation mechanisms (e.g., virtual private clouds, encryption)must be trustedwithout direct verification.

Regulatory compliance challenges:

Organizations handling sensitive data (e.g., healthcare, finance)requirestrict controls.

Cloud providers may not offer sufficient audit logsor control overdata residency and processing.

Incident response limitations:

In traditional IT, organizations controllog access, forensic analysis, and recovery.

In the cloud,incident investigation depends on the provider’s logging and notification practices.

Thisvisibility issueis extensively covered in:

CCSK v5 - Security Guidance v4.0, Domain 4 (Compliance and Audit Management)

ENISA’s Cloud Computing Risk Assessment (Limited visibility into cloud provider security policies)​

Managing identities across multiple cloud providers is complex due to the need for scalability, interoperability, and consistent access control. Thefederationapproach is commonly used to address this challenge. Identity federation allows organizations to use a single set of credentials across different cloud providers by leveraging standards such as SAML, OAuth, or OpenID Connect. This enables seamless authentication and authorization without requiring separate identity management systems for each provider.

From theCCSK v5.0 Study Guide, Domain 6 (Identity, Entitlement, and Access Management), Section 6.3:

“Identity federation is a critical approach for managing identities in cloud environments, especially when scaling across multiple providers. Federation allows organizations to use a trusted identity provider (IdP) to authenticate users, enabling single sign-on (SSO) and consistent access control across disparate cloud services.”

Option C (Federation) is the correct answer.

Option A (Decentralization) is incorrect because decentralizing identity management increases complexity and reduces consistency across providers.

Option B (Centralization) is incorrect because, while centralized identity management may be used within a single organization, it does not scale effectively across multiple cloud providers without federation.

Option D (Outsourcing) is incorrect because outsourcing identity management does not inherently address the scalability and interoperability challenges of cloud environments.

One of the primary operational challenges associated with using cloud-agnostic container strategies is ensuring management plane compatibility and consistent controls across multiple cloud environments. Cloud-agnostic strategies aim to make containers portable between different cloud providers. However, each cloud provider has its own management tools, APIs, and security controls, which can lead to complexities in maintaining consistent policies, monitoring, and management practices across different cloud environments.

Limiting deployment to a single cloud service is contrary to the goal of a cloud-agnostic strategy, which seeks to avoid reliance on a single cloud provider. Establishing identity and access management protocols is important but not unique to cloud-agnostic strategies; IAM challenges exist regardless of cloud approach. Reducing the amount of cloud storage used is a general optimization concern, not specifically related to cloud-agnostic containers.

AI workloads often require isolation and strict access controls to prevent unauthorized access and safeguard sensitive data involved in machine learning processes. Reference: [CCSK Study Guide, Domain 8 - AI Workload Security]

Encrypting all objects in the repository ensures that data is protected at rest, reducing the risk of unauthorized access or data exposure. Reference: [Security Guidance v5, Domain 9 - Data Security]

A governance hierarchy provides a structured approach to managing cloud services, ensuring policies and controls are effectively enforced. Reference: [Security Guidance v5, Domain 2 - Cloud Governance]