Read-heavy vs write-heavy systems in HLD - Interactive Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to identify a read-heavy system characteristic.

HLD

if system_type == '[1]':
    optimize_for = 'cache and fast reads'

Drag options to blanks, or click blank then click option'

Awrite-heavy

Bbalanced

Cread-heavy

Dbatch-processing

Attempts:

3 left

💡 Hint

Common Mistakes

Choosing write-heavy instead of read-heavy.

Read-heavy systems focus on optimizing read operations, often using caching.

2fill in blank

medium

Complete the code to identify a write-heavy system characteristic.

HLD

if system_type == '[1]':
    optimize_for = 'fast writes and data durability'

Drag options to blanks, or click blank then click option'

Aread-heavy

Barchival

Creal-time

Dwrite-heavy

Attempts:

3 left

💡 Hint

Common Mistakes

Confusing read-heavy with write-heavy.

Write-heavy systems focus on fast and reliable write operations.

3fill in blank

hard

Fix the error in the system optimization check.

HLD

if workload == '[1]':
    use_cache = True
else:
    use_cache = False

Drag options to blanks, or click blank then click option'

Abatch

Bread-heavy

Cmixed

Dwrite-heavy

Attempts:

3 left

💡 Hint

Common Mistakes

Selecting write-heavy which disables caching incorrectly.

Caching is mainly beneficial for read-heavy workloads.

4fill in blank

hard

Fill both blanks to optimize system design for read-heavy and write-heavy workloads.

HLD

if workload == '[1]':
    database = 'replicated read replicas'
elif workload == '[2]':
    database = 'sharded write nodes'

Drag options to blanks, or click blank then click option'

Aread-heavy

Bwrite-heavy

Cbatch

Dreal-time

Attempts:

3 left

💡 Hint

Common Mistakes

Mixing up read-heavy and write-heavy in blanks.

Read-heavy systems use read replicas; write-heavy systems use sharding for writes.

5fill in blank

hard

Fill all three blanks to complete the system design for read-heavy and write-heavy workloads with caching strategy.

HLD

system = {
    'type': '[1]',
    'database': '[2]',
    'cache_enabled': [3]
}

Drag options to blanks, or click blank then click option'

Aread-heavy

Breplicated read replicas

CTrue

DFalse

Attempts:

3 left

💡 Hint

Common Mistakes

Enabling cache for write-heavy systems incorrectly.

Read-heavy systems use replicated read replicas and enable caching.