Examkin

Soru

Zorluk: OrtaUnderstand concepts of cloud economics

LexSearch Systems is a legal discovery software provider that runs resource-intensive document indexing jobs only when a client uploads a new case. These jobs run for 3 to 5 days, during which they require massive compute power, but the system remains completely idle for the rest of the month. The company currently leases dedicated physical servers on a fixed monthly basis to ensure they have enough capacity for these peaks.

Which of the following best describes the economic advantage LexSearch Systems would gain by migrating this workload to AWS?

  1. A
    Converting variable operating expenses into predictable, long-term capital expenses through upfront pricing, which lowers overall hardware depreciation costs.
  2. B
    Scaling resources statically to maintain peak capacity at all times, ensuring that indexing jobs can scale without needing to modify existing infrastructure.
  3. Shifting from fixed, upfront hardware leasing commitments to variable operating expenses, and using elasticity to pay only for resources consumed during active indexing runs.Cevap
  4. D
    Using On-Demand instances for all indexing runs and purchasing Reserved Instances for the idle periods to maintain network connections.

Cevap

Shifting from fixed, upfront hardware leasing commitments to variable operating expenses, and using elasticity to pay only for resources consumed during active indexing runs.
The correct answer explains that migrating to AWS enables the company to switch from fixed monthly leasing commitments to variable operating expenses (paying only for what is used) and utilizes elasticity to scale resources up during active indexing periods and down during idle times to avoid waste.

Adım Adım Çözüm

1
Analyze the workload demand pattern.
The workload is highly variable (indexing runs 3-5 days a month, idle for the remaining time).
Understanding the usage pattern helps identify the appropriate cloud billing and scaling model.
2
Identify the current expense model and compare it to the cloud economics model.
The current model relies on fixed monthly leases (sunk costs regardless of use). The cloud model shifts these to variable, pay-as-you-go expenses.
AWS cloud economics leverages a variable operating expense model where costs match usage.
3
Select the scaling capability that aligns with the workload variance.
Elasticity allows the company to scale compute capacity up during active runs and down to zero during idle periods.
Elasticity ensures cost optimization by aligning resource consumption directly with demand spikes and troughs.

Anahtar Kavram

Understand concepts of cloud economics (specifically the transition from CapEx/fixed OpEx to variable OpEx, and the cost benefit of elasticity).
Tahmini Süre:1m 0s
Bu soruyu puanla

Konular

Understand concepts of cloud economics

Bu konudan daha fazla soru