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Exam (elaborations)

Snowflake Certification Exam with Complete Solutions

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Snowflake Certification Exam with Complete SolutionsSnowflake Certification Exam with Complete SolutionsSnowflake Certification Exam with Complete SolutionsSnowflake Certification Exam with Complete SolutionsSnowflake Certification Exam with Complete Solutions What is Snowflake? (key features) - A...

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  • August 22, 2024
  • 22
  • 2024/2025
  • Exam (elaborations)
  • Questions & answers
  • Snowflake Certification
  • Snowflake Certification
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NursingTutor1
Snowflake Certification Exam with
Complete Solutions

What is Snowflake? (key features) - ANSWER - Analytic data warehouse


SaaS offering
- No hardware/installation/patching
- No ongoing maintenance/tuning
- Can't run privately (on-prem/hosted)


Runs completely in the Cloud (AWS, Azure, GCP)
- Has its own VPC


Decoupled compute and storage (scaled compute does not need scaled storage)


Snowflake Architecture - Cloud Services - ANSWER - Command center of Snowflake
- Coordinates and ties all activities together within Snowflake


Gets provisioned by Snowflake and within cloud provider (AWS, Azure, GCP)
- Customer can't access directly or modify it
- Shared with other customers unless using VPS Edition


Snowflake Pricing (what determines unit cost, pricing model, editions features) - ANSWER - Unit
costs for Credits and data storage determined by Region (not Cloud platform)


Pricing model = on-demand or discounted upfront


Editions:

,- Enterprise (or greater) => 90 days time-travel (default is 1 day) + materialized view + multi-
cluster warehouse
- Business Critical => more security (HIPAA, SOC 1&2, PCI DSS)
- VPS Edition => own cloud service layer (not shared with accounts)


Snowflake Regions - Is multi-region account supported? - ANSWER - No multi-region accounts
supported
- Each account can only be in one region


Multiple regions supported for each cloud provider
- AWS: 11 regions (US, EU, Asia-Pacific)
- Azure: 8 regions (US, EU, Asia-Pacific)
- GCP: 3 regions (US, EU)


Options to Connect to Snowflake - ANSWER - Web-based UI


Command-Line client (SnowSQL)


ODBC, JDBC (must download driver)


Native connectors (Python, Spark, Kafka)


Third-Party connectors (e.g., Matillion)


Other (Node.js, .Net)


Connect URL Pattern - ANSWER -
https://<account_name>.<region>[.provider].snowflakecomputing.com


example for AWS:
https://pp12345.ap-southeast-2.snowflakecomputing.com

, Snowflake Architecture Overview - ANSWER - Hybrid of shared-disk db and shared-nothing db


- Uses central data repo for persisted storage - all compute nodes have data access


- Uses MPP clusters to process queries - each node stores a portion of the data locally


Snowflake Architecture - 3 main Layers - ANSWER - Storage Layer


Query Processing


Cloud Services


Snowflake Architecture - Storage Layer - ANSWER - All data stored as internal, optimized,
compressed columnar format (micro-partitions represents logical structure of table)


Can't access data directly, only through Snowflake


Snowflake Architecture - Query Processing - ANSWER - Where processing of query happens


Uses virtual warehouses - MPP compute cluster


- Each cluster is independent (doesn't share resources, with, doesn't impact other Virtual WHs)


What does the Cloud Services Layer handle? - ANSWER - Authentication


Infrastructure Management


Metadata Management

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