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These 10 free D-CS-DS-23 questions are organized by exam domain, so you can see how each part of the Dell Technologies Cloud Services Design 2023 (Cloud Architect / Cloud Services track) blueprint is tested. Reveal the answer and explanation under each question.
Developers request virtual machines through a portal, but every request still waits for an administrator to configure it. The infrastructure already pools resources, meters consumption, and scales capacity with demand. Security has approved a catalog of configurations and usage limits. What would turn this request portal into on-demand self-service?
Correct answer: A - Let authorized users provision catalog configurations through automated policy checks.
A shipment-tracking service has two monthly objectives: at least 99.9% of eligible requests succeed, and the 95th-percentile latency (p95) of successful requests is at most 250 ms. The month-end report shows 99.94% success, mean latency of 80 ms, and 99th-percentile latency (p99) of 700 ms, using the agreed request population and window. The report does not include p95. For the service review, the architect can conclude that:
Correct answer: D - Success met its objective; compliance with the p95 latency objective remains undetermined.
A company compares keeping a workload on premises with migrating it now for the next 24 months. Both choices meet the same service requirements. Staying requires future cash payments of USD 12,000 per month. Cloud requires USD 7,500 per month, USD 25,000 for migration now, and USD 10,000 for exit at the end of month 24. Existing servers cost USD 80,000 last year; that amount is paid and non-refundable, with no resale value under either choice. All future cash costs are listed; ignore discounting and taxes. Which comparison should inform the funding decision?
Correct answer: A - Migration saves USD 73,000; the already-paid hardware purchase does not change the comparison.
A company moves its customer portal from IaaS virtual machines to a managed application platform. The contract now places operating-system and runtime patching with the provider. The revised operating plan removes both customer OS-patching work and reviews of the company's own cloud-administrator permissions, citing the platform's ISO/IEC 27001 certification. Which revision matches the new service boundary?
Correct answer: D - Keep administrator-access review with the customer and transfer covered OS patching to the provider.
An application is being assessed for exit from cloud A. Its container image runs in cloud B, and a database export has been successfully restored there. Business workflows still invoke A's proprietary orchestration API. The exit criterion is that all required workflows operate after access to A is terminated. Which additional evidence is most relevant to approving the exit?
Correct answer: B - Successful execution of the required workflows in B using replacement integrations, with access to A blocked.
An internal database service has passed its launch acceptance tests. The implementation project has closed, and operations handles incidents, but nobody can prioritize customer feedback against reliability improvements or decide when to retire unused service variants. Each enhancement now requires a separate project request. Which change addresses the underlying accountability gap?
Correct answer: C - Assign ongoing product ownership for the backlog, service outcomes, and retirement.
During an incident, an authorized emergency change restricted a firewall rule managed through infrastructure as code. The security owner has approved the narrower rule as permanent; the incident is closed and no other drift has been found. The next deployment plan would restore the wider rule because the repository contains the earlier definition. What is the appropriate next step?
Correct answer: A - Record the approved restriction in versioned code, review the new plan, and resume the affected deployment.
A retailer has placed pricing and ordering in separate containers. Pricing now scales independently and meets its demand target. However, ordering reads pricing tables directly, so each pricing schema change still forces an ordering release. What change addresses the remaining obstacle to independent pricing releases?
Correct answer: B - Give pricing ownership of its tables; have ordering use a backward-compatible pricing API.
An incident review finds that a checkout application keeps active shopping carts in each web process's memory. Session affinity routes a shopper back to the same instance. Completed orders survive, but active carts disappear when an instance fails or is replaced. Select the change that preserves active carts through both planned replacement and unexpected instance loss.
Correct answer: C - Store carts outside the web instances in a shared durable service, indexed by session ID.
Ransomware is actively encrypting a company's production file service, and replication is carrying encrypted changes to the recovery site. A separate immutable backup predates the compromise. The incident runbook authorizes the on-call team to isolate affected systems. A manager requests immediate failover to meet the recovery time target. Which response takes priority?
Correct answer: C - Isolate affected systems and suspend replication through the authorized containment procedure.
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