Lifecycle management rules in GCP - Practice Problems & Coding Challenges

Challenge - 5 Problems

❓ service_behavior

intermediate

Understanding GCS Lifecycle Rule Effect

You have a Google Cloud Storage bucket with this lifecycle rule:

{"rule": [{"action": {"type": "Delete"}, "condition": {"age": 30}}]}

What happens to objects in this bucket?

A Objects older than 30 days are automatically deleted.

B Objects are archived to Nearline storage after 30 days.

C Objects are encrypted after 30 days.

D Objects are made publicly readable after 30 days.

💡 Hint

Think about what the 'Delete' action means in lifecycle rules.

The lifecycle rule specifies that objects older than 30 days are deleted automatically. Other actions like archiving or encryption are not specified here.

❓ Configuration

intermediate

Correct Lifecycle Rule to Archive Objects

Which lifecycle rule configuration archives objects to Coldline storage after 60 days?

A {"rule": [{"action": {"type": "SetStorageClass", "storageClass": "NEARLINE"}, "condition": {"age": 60}}]}

B {"rule": [{"action": {"type": "Delete"}, "condition": {"age": 60}}]}

C {"rule": [{"action": {"type": "SetStorageClass", "storageClass": "COLDLINE"}, "condition": {"age": 60}}]}

D {"rule": [{"action": {"type": "SetStorageClass", "storageClass": "ARCHIVE"}, "condition": {"age": 30}}]}

💡 Hint

Look for the action type that changes storage class and the correct target class.

To archive objects to Coldline storage after 60 days, the action must be 'SetStorageClass' with 'COLDLINE' and condition age 60.

❓ Architecture

advanced

Designing Lifecycle Rules for Cost Optimization

You want to design lifecycle rules for a bucket storing logs. Logs should be stored in Standard storage for 7 days, then moved to Nearline for 30 days, then to Coldline for 90 days, and finally deleted after 365 days. Which lifecycle rule set achieves this?

A [{"action": {"type": "SetStorageClass", "storageClass": "NEARLINE"}, "condition": {"age": 7}}, {"action": {"type": "SetStorageClass", "storageClass": "COLDLINE"}, "condition": {"age": 37}}, {"action": {"type": "Delete"}, "condition": {"age": 365}}]

B [{"action": {"type": "SetStorageClass", "storageClass": "NEARLINE"}, "condition": {"age": 7}}, {"action": {"type": "SetStorageClass", "storageClass": "COLDLINE"}, "condition": {"age": 37}}, {"action": {"type": "Delete"}, "condition": {"age": 90}}]

C [{"action": {"type": "SetStorageClass", "storageClass": "NEARLINE"}, "condition": {"age": 7}}, {"action": {"type": "SetStorageClass", "storageClass": "COLDLINE"}, "condition": {"age": 97}}, {"action": {"type": "Delete"}, "condition": {"age": 365}}]

D ]}}563 :"ega"{ :"noitidnoc" ,}"eteleD" :"epyt"{ :"noitca"{ ,}}73 :"ega"{ :"noitidnoc" ,}"ENILDLOC" :"ssalCegarots" ,"ssalCegarotSteS" :"epyt"{ :"noitca"{ ,}}7 :"ega"{ :"noitidnoc" ,}"ENILRAEN" :"ssalCegarots" ,"ssalCegarotSteS" :"epyt"{ :"noitca"{[

💡 Hint

Calculate cumulative days for each storage class transition.

Objects stay 7 days in Standard, then 30 days in Nearline (7+30=37), then to Coldline at 37 days. The delete action is after 365 days. Option A sets Coldline transition at 97 days, which is incorrect. The correct cumulative day for Coldline transition is 37 days, so option A is correct.

❓ security

advanced

Lifecycle Rule Impact on Object Versioning

A bucket has object versioning enabled. It has this lifecycle rule:

{"rule": [{"action": {"type": "Delete"}, "condition": {"isLive": false, "age": 30}}]}

What happens to noncurrent object versions?

A All object versions are deleted after 30 days.

B No versions are deleted because versioning is enabled.

C Only live versions older than 30 days are deleted.

D Noncurrent versions older than 30 days are deleted automatically.

💡 Hint

Check the condition 'isLive': false and what it means.

The condition 'isLive': false targets noncurrent versions. The rule deletes noncurrent versions older than 30 days. Live versions are unaffected.

✅ Best Practice

expert

Choosing Lifecycle Rules for Compliance and Cost

Your company must retain data for 7 years for compliance. Data should be stored cost-effectively after 1 year. Which lifecycle rule strategy meets compliance and cost goals?

A Set lifecycle rule to delete objects after 1 year and transition to Coldline storage after 7 years.

B Set lifecycle rule to delete objects after 7 years and transition to Coldline storage after 1 year.

C Set lifecycle rule to delete objects after 7 years and transition to Nearline storage after 7 years.

D Set lifecycle rule to delete objects after 7 years and transition to Archive storage after 1 year.

💡 Hint

Think about when to move data to cheaper storage and when to delete it.

To meet compliance, data must be kept 7 years. To save cost, move data to cheaper Coldline storage after 1 year. Then delete after 7 years. Option B correctly implements this.