312-50V13 Question #299: Real Exam Question with Answer & Explanation

Question

Abel, a cloud architect, uses container technology to deploy applications/software including all its dependencies, such as libraries and configuration files, binaries, and other resources that run independently from other processes in the cloud environment. For the containerization of applications, he follows the five-tier container technology architecture. Currently. Abel is verifying and validating image contents, signing images, and sending them to the registries. Which of the following tiers of the container technology architecture Is Abel currently working in?

Options

• ATier-1: Developer machines
• BTier-4: Orchestrators
• CTier-3: Registries
• DTier-2: Testing and accreditation systems

Explanation

Explanation

Option D is correct because Tier-2 (Testing and Accreditation Systems) is specifically responsible for verifying and validating image contents, signing images, and accrediting them before they are approved and forwarded to registries - this is the quality assurance and security validation stage of the container pipeline.

Why the other options are wrong:

• Option A (Tier-1: Developer Machines) is where developers initially build and create container images, not where validation and signing occur.
• Option B (Tier-4: Orchestrators) is where container deployment, scaling, and management take place (e.g., Kubernetes), which comes after images are already in registries.
• Option C (Tier-3: Registries) is where images are stored and distributed after they have already been signed and validated - Abel hasn't reached this stage yet.

Memory Tip 🧠

Think of the flow as an assembly line: Build → Test/Sign → Store → Orchestrate → Run. Since Abel is signing and validating (quality control), he's at Stage 2 - just like a factory inspector checks products before they go to the warehouse (registry). If it involves security checks and signing, it's Tier-2.

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