Exercises › Multi-Region Deployment Language › Active-Active vs. Active-Passive Architectures

Active-Active vs. Active-Passive Architectures

5 questions · Multi-Region Deployment Language

1. An architect says: "We run an active-active configuration across us-east-1 and eu-west-1." What does this mean for traffic handling?

Only us-east-1 serves live traffic; eu-west-1 is on standby All regions serve traffic simultaneously — both handle live user requests at the same time The regions alternate: one serves traffic while the other syncs data

2. The team describes their setup: "We have a primary region in us-east-1 and a secondary region in ap-southeast-1 that activates only during failure." What architecture pattern is this?

Active-active Active-passive Multi-master

3. A SRE describes three standby options. Which correctly matches hot standby, warm standby, and cold standby to their descriptions?

Hot = fully running, minimal failover time; Warm = scaled-down but running, moderate failover time; Cold = infrastructure not running, longest failover time Hot = infrastructure not running; Warm = fully running; Cold = scaled-down but running Hot = automated failover; Warm = manual failover; Cold = no failover capability

4. A platform engineer explains: "Traffic is routed based on latency — users are sent to whichever region responds fastest." Which routing strategy is this?

Geolocation routing Weighted round-robin routing Latency-based routing

5. During an architecture review, someone asks: "What is the key trade-off between active-active and active-passive?" Which answer is most accurate?

Active-active is always cheaper; active-passive always has better performance Active-active provides higher availability and uses capacity more efficiently but requires solving data consistency across regions; active-passive is simpler but the standby capacity is idle during normal operations Active-passive supports more regions; active-active only works with two regions

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