Snowflake Certification Exam with Complete Solutions
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Snowflake Certification
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Snowflake Certification
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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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
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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