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CASE STUDY: TrendWear Apparel
Company Overview:
TrendWear Apparel is a global clothing retailer with an e-commerce platform and 500 physical stores.
Current Technical Environment:
- On-premises VMware environment
- Legacy IBM Mainframe for core inventory management
- Monolithic e-commerce application running on VMs
Business Requirements:
- Modernize the e-commerce platform to handle Black Friday (10x normal traffic)
- Unify online and in-store inventory data in real-time
- Avoid major capital expenditure (CapEx) for data center refreshes
Executive Statements:
- CEO: "We need an omnichannel experience. Customers should see accurate store inventory online."
- CFO: "We must shift from CapEx to OpEx. No more buying hardware."
- CTO: "We want to move to microservices, but we cannot retire the mainframe for at least 3 years due to complex legacy dependencies."
Technical Requirements:
- Hybrid architecture connecting GCP and on-premises
- Microservices architecture for the new e-commerce platform
- PCI-DSS compliance for all payment processing
- Consistent management plane across on-prem and cloud
Constraints:
- Mainframe must remain on-premises
- E-commerce migration must be completed before the next holiday season (8 months)
QUESTION:
Based on the CTO's requirement for a consistent management plane across on-premises and the cloud, and the need to modernize to microservices while keeping the mainframe, which compute architecture should you recommend?
GCP PCA · Question 10 · Domain 5: Managing Implementation and Ensuring Reliability
CASE STUDY: TrendWear Apparel
Company Overview:
TrendWear Apparel is a global clothing retailer with an e-commerce platform and 500 physical stores.
Current Technical Environment:
- On-premises VMware environment
- Legacy IBM Mainframe for core inventory management
- Monolithic e-commerce application running on VMs
Business Requirements:
- Modernize the e-commerce platform to handle Black Friday (10x normal traffic)
- Unify online and in-store inventory data in real-time
- Avoid major capital expenditure (CapEx) for data center refreshes
Executive Statements:
- CEO: "We need an omnichannel experience. Customers should see accurate store inventory online."
- CFO: "We must shift from CapEx to OpEx. No more buying hardware."
- CTO: "We want to move to microservices, but we cannot retire the mainframe for at least 3 years due to complex legacy dependencies."
Technical Requirements:
- Hybrid architecture connecting GCP and on-premises
- Microservices architecture for the new e-commerce platform
- PCI-DSS compliance for all payment processing
- Consistent management plane across on-prem and cloud
Constraints:
- Mainframe must remain on-premises
- E-commerce migration must be completed before the next holiday season (8 months)
QUESTION:
To handle the Black Friday traffic (10x normal load), the operations team is concerned about the GKE cluster scaling fast enough. What combination of GCP features should you implement to ensure the platform remains responsive?
CASE STUDY: TrendWear Apparel
Company Overview:
TrendWear Apparel is a global clothing retailer with an e-commerce platform and 500 physical stores.
Current Technical Environment:
- On-premises VMware environment
- Legacy IBM Mainframe for core inventory management
- Monolithic e-commerce application running on VMs
Business Requirements:
- Modernize the e-commerce platform to handle Black Friday (10x normal traffic)
- Unify online and in-store inventory data in real-time
- Avoid major capital expenditure (CapEx) for data center refreshes
Executive Statements:
- CEO: "We need an omnichannel experience. Customers should see accurate store inventory online."
- CFO: "We must shift from CapEx to OpEx. No more buying hardware."
- CTO: "We want to move to microservices, but we cannot retire the mainframe for at least 3 years due to complex legacy dependencies."
Technical Requirements:
- Hybrid architecture connecting GCP and on-premises
- Microservices architecture for the new e-commerce platform
- PCI-DSS compliance for all payment processing
- Consistent management plane across on-prem and cloud
Constraints:
- Mainframe must remain on-premises
- E-commerce migration must be completed before the next holiday season (8 months)
QUESTION:
To handle the Black Friday traffic (10x normal load), the operations team is concerned about the GKE cluster scaling fast enough. What combination of GCP features should you implement to ensure the platform remains responsive?
Answer options:
Contact Google Cloud Support 24 hours in advance to pre-warm the Global Load Balancer.
Implement Cloud CDN to cache static assets, and configure GKE Cluster Autoscaler alongside Horizontal Pod Autoscaling (HPA).
Over-provision the GKE cluster with 10x the normal node count permanently to ensure capacity.
Use Cloud Run instead of GKE, as GKE cannot scale fast enough for Black Friday traffic.
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