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Compaction Overview Advanced Quiz

S301: ScyllaDB Operations Compaction Strategies Compaction Overview Deep Dive Compaction Overview Advanced Quiz

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Question 1 of 4

1. Question
What does LSM stand for and how is it used in ScyllaDB?
- Log-Structured Merge-Tree, used for Scylla persistent storage
- Log-Structured Merge-Tree, used for High Availability
- Living Standards Measure, Scylla storage metrics
- Linux Security Modules, used by Scylla security functions
- Linux Software Map, text format used by Scylla configurations
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Question 2 of 4

2. Question
When is an SSTable created and updated? mark the wrong answers below (could be more than one)
- Created when MemTable is flushed to disk
- Created during compaction from other SSTables
- Updated as a result of a CQL UPDATE operation
- Updated as a result of a CQL DELETE operation
- SSTables are immutable, and once created are never updated
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Question 3 of 4

3. Question
Tombstones are markers for deleted values. How and when are Tombstones cleaned?
- Never. If they would a deleted value can come back to life
- Only on a major compaction
- On every minor compaction
- On compaction, but only after GC Grace Period
- During a repair
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Question 4 of 4

4. Question
What is the difference between Compaction Strategies?
- The order and way they select SSTable to compact
- The file format of the SSTable (mv, la, lk etc)
- The way they are using the GC Grace Period
- In the way, they sync and stream the data between Scylla nodes
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Course Home Expand All

1 Topic | 1 Quiz

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Bootstrap a New Node into a Cluster

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Compaction Fundamentals

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Size Tiered and Leveled Compaction Strategies STCS + LCS

Size Tiered Compaction Strategy (STCS) Deep Dive

Leveled Compaction Strategy (LCS) Deep Dive

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1 Topic

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K8 Operator – Monitoring and ScyllaDB Deployment Demo Part One

K8 Operator – Monitoring and ScyllaDB Deployment Demo Part Two

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4 Topics | 2 Quizzes

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CDC Consuming the Data

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8 Topics | 1 Quiz

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Kafka – ScyllaDB Sink Connector

Kafka – ScyllaDB Sink Connector Demo

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Kafka – ScyllaDB CDC Demo

Kafka – ScyllaDB CDC Source Connector

Kafka – ScyllaDB CDC Source Connector Demo

Workload Prioritization

3 Topics | 4 Quizzes

Workload Prioritization Overview

Workload Prioritization Implementation and Configuration

Workload Prioritization Performance and an Example

Return to S301: ScyllaDB Operations

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