2.07 Evaluate the Variables Relevant to the Design of Green-Field Data Centers and Application Delivery Architectures to Function as a Cloud Service Provider 402 Practice Questions (Page 2)

Questions 6–10

1. 6expert · hard

   A cloud provider is designing the application delivery tier for a new managed Kubernetes service. The control plane must be highly available, but the data plane (worker nodes) can tolerate brief interruptions. The provider wants to minimize the number of load balancers to reduce cost. Which architecture is most appropriate?

   • AUse a single, highly redundant pair of load balancers for both the control plane API and the data plane ingress traffic.
   • BUse a single load balancer for the control plane API and rely on the Kubernetes service mesh for all data plane traffic.
   • CUse a dedicated, highly available load balancer for the control plane API, and use a separate, less critical load balancer for data plane ingress.
   • DDo not use a load balancer for the control plane; instead, use a DNS round-robin across multiple API server IPs.
   Reveal Solution Discussion Select an answer first
2. 7foundation · easy

   Which component is essential for distributing incoming client traffic across multiple servers to ensure no single server is overwhelmed?

   • ALoad balancer
   • BDNS server
   • CStorage array
   • DFirewall
   Reveal Solution Discussion Select an answer first
4. 8application · medium

   A company is designing a green-field data center to offer public cloud services. The region experiences frequent seismic activity, and the local power grid is unreliable. The company's primary customers are latency-sensitive financial applications. Which combination of design variables should be prioritized in the initial site selection and facility design?

   • ADesign for 2N power redundancy with extensive battery backup, but select a location based on customer proximity regardless of seismic risk.
   • BFocus on cooling efficiency and low PUE, and assume the local utility grid is sufficient for availability.
   • CChoose a location with low seismic risk, design for N+1 power redundancy with on-site generators, and place the facility close to major network exchange points.
   • DSelect a location with the lowest real estate cost, implement basic power redundancy, and rely on the public internet for connectivity.
   Reveal Solution Discussion Select an answer first
5. 9application · medium

   A cloud provider is designing the application delivery tier for a new content delivery network (CDN) service. The service must cache content at edge locations and serve it to end users with minimal latency. The architecture must also be able to handle a 'flash crowd' (a sudden, massive spike in traffic). Which component is most critical to handle the flash crowd?

   • AA large, centralized cache cluster that can store all content.
   • BA distributed network of edge cache nodes with the ability to scale horizontally.
   • CA global load balancer (GSLB) that can distribute traffic to the nearest edge location.
   • DA high-capacity firewall to filter traffic and protect the origin server.
   Reveal Solution Discussion Select an answer first
6. 10application · medium

   A company is building a green-field data center for a cloud service. The design team is evaluating the power infrastructure. The local utility provides power, but it is subject to frequent brownouts. The company's SLA requires 99.99% availability. What is the most critical power design element to ensure this SLA?

   • AA combination of UPS for immediate ride-through and on-site generators for long-term backup.
   • BOn-site diesel generators with a large fuel supply to provide long-term backup power.
   • CA redundant connection to the utility grid from a different substation.
   • DA large battery room (UPS) to provide ride-through power during brownouts.
   Reveal Solution Discussion Select an answer first