AZ-104: Microsoft Azure Administrator Full Course - Azure Replication Strategy - Theory

The video tutorial explains the importance of a replication strategy to protect data against failures at various levels, such as regional, data center, or rack level. It introduces Azure's replication options, including Local Redundant Storage (LRS), Zone Redundant Storage (ZRS), Geo Redundant Storage (GRS), and GeoZone Redundant Storage (GZRS). Each replication type is discussed in terms of its functionality, cost, and suitability for different applications, emphasizing the need for redundancy to ensure data availability and durability.

Why is a replication strategy important for data storage?

• To increase data processing speed

• To ensure data availability during failures

• To simplify data management

• To reduce storage costs

Which of the following is NOT a type of Azure replication strategy?

• Zone Redundant Storage (ZRS)

• Geo-Zone Redundant Storage (GZRS)

• Global Redundant Storage (GRS)

• Local Redundant Storage (LRS)

What is a key characteristic of Local Redundant Storage (LRS)?

• Data is copied to a secondary location asynchronously

• Data is copied within a single data center

• Data is available for read access in a secondary region

• Data is copied across multiple regions

Which replication strategy provides redundancy at a zone level?

• Geo-Zone Redundant Storage (GZRS)

• Geo-Redundant Storage (GRS)

• Zone Redundant Storage (ZRS)

• Local Redundant Storage (LRS)

What is the main advantage of Geo-Redundant Storage (GRS)?

• It offers the highest data processing speed

• It ensures data is available in a secondary region

• It provides data redundancy within a single data center

• It is the least expensive option

Which replication strategy combines zone-level and geographical-level protection?

• Local Redundant Storage (LRS)

• Geo-Zone Redundant Storage (GZRS)

• Zone Redundant Storage (ZRS)

• Geo-Redundant Storage (GRS)

For applications requiring maximum consistency and durability, which Azure replication strategy is recommended?

• Local Redundant Storage (LRS)

• Zone Redundant Storage (ZRS)

• Geo-Zone Redundant Storage (GZRS)

• Geo-Redundant Storage (GRS)