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HLDsystem_design~10 mins

Relational database strengths in HLD - Interactive Code Practice

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

Complete the code to identify a key strength of relational databases.

HLD
Relational databases are known for their strong support of [1].
Drag options to blanks, or click blank then click option'
AACID transactions
Bschema-less data
Cevent-driven architecture
Dscalability
Attempts:
3 left
💡 Hint
Common Mistakes
Confusing schema-less with relational databases
Thinking event-driven is a database feature
2fill in blank
medium

Complete the code to describe how relational databases organize data.

HLD
Data in relational databases is stored in [1] that have rows and columns.
Drag options to blanks, or click blank then click option'
Adocuments
Btables
Cgraphs
Dobjects
Attempts:
3 left
💡 Hint
Common Mistakes
Choosing documents which relate to NoSQL
Confusing graphs with graph databases
3fill in blank
hard

Fix the error in the statement about relational database querying.

HLD
Relational databases use [1] language to query and manipulate data.
Drag options to blanks, or click blank then click option'
ANoSQL
BHTML
CSQL
DJSON
Attempts:
3 left
💡 Hint
Common Mistakes
Confusing SQL with NoSQL
Thinking HTML or JSON are query languages
4fill in blank
hard

Fill both blanks to describe relational database data integrity features.

HLD
Relational databases enforce [1] to ensure data accuracy and use [2] to link related data.
Drag options to blanks, or click blank then click option'
Aconstraints
Bindexes
Cforeign keys
Dcaches
Attempts:
3 left
💡 Hint
Common Mistakes
Mixing indexes with constraints
Confusing caches with foreign keys
5fill in blank
hard

Fill all three blanks to explain relational database normalization.

HLD
Normalization reduces [1] by organizing data into [2] and removing [3].
Drag options to blanks, or click blank then click option'
Aredundancy
Btables
Cduplicates
Dindexes
Attempts:
3 left
💡 Hint
Common Mistakes
Confusing indexes with duplicates
Thinking normalization adds redundancy