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HLDsystem_design~10 mins

Why e-commerce tests transactional design in HLD - Test Your Understanding

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Practice - 5 Tasks
Answer the questions below
1fill in blank
easy

Complete the code to identify the key property of transactions in e-commerce systems.

HLD
A transaction in e-commerce must ensure [1] to keep data consistent.
Drag options to blanks, or click blank then click option'
Aatomicity
Bscalability
Clatency
Dthroughput
Attempts:
3 left
💡 Hint
Common Mistakes
Confusing atomicity with scalability or performance metrics.
2fill in blank
medium

Complete the code to describe the isolation property in e-commerce transactions.

HLD
Isolation ensures that concurrent transactions do not [1] each other to prevent data conflicts.
Drag options to blanks, or click blank then click option'
Alock
Boptimize
Cignore
Dinterfere with
Attempts:
3 left
💡 Hint
Common Mistakes
Choosing 'lock' which is a mechanism, not the property itself.
3fill in blank
hard

Fix the error in the statement about durability in e-commerce transactions.

HLD
Durability means once a transaction is committed, its results are [1] even if the system crashes.
Drag options to blanks, or click blank then click option'
Alost
Btemporary
Cpermanent
Dreversible
Attempts:
3 left
💡 Hint
Common Mistakes
Confusing durability with temporary or reversible states.
4fill in blank
hard

Fill both blanks to complete the description of the ACID properties tested in e-commerce.

HLD
E-commerce transactions require [1] to ensure all steps succeed or fail together, and [2] to prevent concurrent transaction conflicts.
Drag options to blanks, or click blank then click option'
Aatomicity
Bscalability
Cisolation
Ddurability
Attempts:
3 left
💡 Hint
Common Mistakes
Mixing scalability or durability with these properties.
5fill in blank
hard

Fill all three blanks to complete the explanation of why e-commerce tests transactional design.

HLD
Testing transactional design ensures [1] to avoid partial updates, [2] to keep data safe after crashes, and [3] to handle multiple users safely.
Drag options to blanks, or click blank then click option'
Aatomicity
Bdurability
Cisolation
Dperformance
Attempts:
3 left
💡 Hint
Common Mistakes
Including performance which is important but not an ACID property.