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High availability and disaster recovery

Data Engineer

High availability and disaster recovery questions

14 questions on High availability and disaster recovery for data engineers, easiest first.

Easy 2

Replication factor of threeeasy
Which replica takes the writeseasy

Medium 7

What the ISR list containsmedium
acks=all with one broker downmedium
Who picks a new leadermedium
Brokers spread over three zonesmedium
Under-replicated partitions alertmedium
A standby cluster in another regionmedium
One broker leads most partitionsmedium

Hard 5

Running two schedulers safelyhard
Two of three replicas losthard
Risk of unclean leader electionhard
Records not yet visible to consumershard
Failing consumers over to the DR clusterhard

More Data Engineer skills

Airflow and orchestration 169 Kafka and stream processing 155 Data warehousing and dbt 145 Apache Spark 134 Data pipelines and data quality 132 Data modelling 113 SQL 54 Performance and debugging 28 Dimensional Modelling 28 Spark SQL 23 Consumers 19 Flink 16 Indexing and query tuning 15 Spark Streaming 15 Pyspark 15 Spark Tuning 15 Cloud platforms (AWS, Azure, GCP) 14 Airflow Templating 14 Kafka Streams 14 Print production and colour 13 Operations 12 Airflow Scheduling 11 Producers 11 Spark Joins 11

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