The shop has separate service release processes, and updates preserve compatible public contracts. What do these conditions enable?

• Deploying one service while neighbours keep their current releases
• Changing an interface before its callers are ready
• Treating team ownership as sufficient for release independence

Which choice concerns the architecture's ownership of state?

• Which service formats the order receipt
• Which service owns the order records
• Which service routes the payment request

Moving stored records after clients depend on their location is always a cheap local edit.

Circle one:   True   False

Checkout requires confirmed payment before producing a receipt. The payment service fails before checkout receives confirmation. Which outcome is possible?

• Return a success receipt and confirm payment later
• Checkout can stop or wait before producing a receipt
• Use the stored order as evidence that payment was accepted

In the lesson's save-order route, input goes from the interface through the rules layer to storage. What work does this route include?

• Saving before checking the order's rules
• Checking the order after storage reports success
• Passing through the rules layer before storage

An order is stored, but a network failure leaves its payment outcome unknown. The services keep their own records. What must this design address?

• Recovery across the separate order and payment outcomes
• A fresh payment request treated as if the earlier request failed
• Treat the saved order as the completed transaction

A team proposes more services because it prefers that style. What evidence would best justify the added boundaries?

• A record of which service libraries the team prefers
• A stated workload problem and a supported cost comparison
• A count of the services used by a similar team

Order-status read traffic rises. These reads use only order records and need no shared stock transaction. Which boundary could allow separate scaling of that workload?

• A boundary around stock writes
• A boundary around checkout writes
• A boundary around the order-status reads