المفاضلات في تعدد المناطق
في هذه الصفحة 9 موضوعات
نص الدروس والتمارين باللغة الإنجليزية، بينما تبقى واجهة الموقع وعناوين الدروس بالعربية.
نظرة عامة
الموضوعات
- التوافر مقابل الاتساق
- الاختصاص القضائي
- التعقيد التشغيلي
تعلّم أولًا
3.5 ساعة تدريب (تقدير)
مخرجات التعلم
- Decide per capability how much availability vs consistency the business needs across regions.
- Map jurisdictional requirements (residency, data transfer rules, local regulators) onto architecture.
- Estimate the operational complexity and cost of each multi-region option.
- Sequence a five-country expansion so complexity grows only when needed.
الدروس
المختبر والتمارين
Lab
SRA-005-LAB1 · Five-country plan
Outcomes: 1–4 · Time: ~2 h
- List the five target countries, their drivers (latency, residency, resilience, market), and the capabilities affected.
- Build the capability-by-capability decision table for availability versus consistency.
- Map jurisdictional requirements onto data flows and mark what stays local; verify assumptions with a role-played legal/compliance advisor.
- Estimate infrastructure, on-call, tooling, and staffing cost for at least three options over three years.
- Sequence the expansion with triggers and go/no-go criteria.
Acceptance: reviewed with a role-played legal/compliance advisor.
Exercises (case-based; six exercises)
| ID | Outcome | Task |
|---|---|---|
| SRA-005-EX01 | 1 | Choose consistency and failover patterns for catalog, inventory reservation, and payments across two regions; justify each. |
| SRA-005-EX02 | 1 | Product asks for "active-active everywhere". Write a one-page reply with the questions and a counterproposal. |
| SRA-005-EX03 | 2 | A country requires that customer personal data stay in-country. Redraw a data flow so orders can still be fulfilled globally. |
| SRA-005-EX04 | 2 | List five questions you would bring to the compliance advisor before designing for a new jurisdiction. |
| SRA-005-EX05 | 3 | Cost a second region over three years, including on-call, tooling, data transfer, and staffing; state the five biggest assumptions. |
| SRA-005-EX06 | 4 | Sequence a five-country launch: for each stage give the design, the trigger, and the go/no-go criterion. |
أظهر الحلول
- EX01 Catalog: replicated reads, eventual consistency. Inventory reservation: single writer per item or region with clear ownership, accepting some latency. Payments: single region with failover and idempotency keys. Justify by cost of staleness.
- EX02 Ask which capabilities, what staleness is acceptable, what the downtime cost is. Counterproposal: active-active only for read-heavy capabilities; regional ownership or single region with failover elsewhere.
- EX03 Keep personal data in a regional store; fulfillment uses pseudonymous identifiers or only the fields required; global systems hold references or tokens. Verify transfers with legal.
- EX04 Examples: which data categories are in scope? Is processing, not only storage, restricted? Which transfer mechanisms are acceptable? Retention and local entity requirements? Regulator reporting duties?
- EX05 Include infrastructure, replication traffic, tooling and observability per region, on-call load, engineering for region-aware features, and compliance work. Assumptions: traffic share, data volume, headcount cost, rates (verify), replication needs.
- EX06 Example: stage 1 existing region; stage 2 regional data for residency when legal need confirmed; stage 3 second region for latency once revenue threshold is met; each with criteria and a review.
Outcome 3 and outcome 4 are also covered by the lab cost and sequencing steps and the quiz.
Workplace evidence: a regional or residency strategy you contributed to.
الاختبار
Outcomes: O1 availability versus consistency per capability · O2 jurisdiction and residency · O3 cost and complexity · O4 sequencing expansion.
اختبار ذاتي لك: لا توجد درجات، ولا يُحفظ أو يُرسل أي شيء. اختر إجابة ثم تحقق منها، ويمكنك المحاولة مرة أخرى كما تشاء.
الجزء العملي
Six case exercises SRA-005-EX01 to EX06 plus the lab, presented as a regional strategy to a role-played legal/compliance advisor. Pass: at least five of six exercises correct, quiz at least 8/10, and a strategy with per-capability decisions, residency mapping, and a costed sequence.
أخطاء شائعة
One global decision for all capabilities; underestimating on-call and tooling cost per region.
التقييم
Strategy review.
دليل من بيئة العمل
A regional or residency strategy you contributed to.
الصلة بالمسار الوظيفي
Cloud architecture and compliance (ARC-012, ARC-029).