1.3 Storing and Accessing Data PROFESSIONAL-CLOUD-DEVELOPER Practice Questions (Page 1)

Questions 1–5

1. 1foundation · easy

   When designing a Bigtable schema, what is the recommended practice for row key design to avoid hot spotting?

   • AInclude a high-cardinality field like a user ID at the start of the row key
   • BUse a constant string as the row key
   • CUse a monotonically increasing timestamp as the row key prefix
   • DUse a short row key with only a few characters
   Reveal Solution Discussion Select an answer first
2. 2application · medium

   A team is building a global user-facing application that needs to store user session data. The data is small (a few KB per user) and is read and written frequently. The team needs low-latency access from multiple regions and is willing to accept occasional stale reads. Which storage service should they choose?

   • ACloud Firestore
   • BCloud Spanner
   • CCloud SQL
   • DCloud Bigtable
   Reveal Solution Discussion Select an answer first
4. 3foundation · easy

   What is the primary purpose of a signed URL in Cloud Storage?

   • ATo grant time-limited access to a private object
   • BTo encrypt an object at rest
   • CTo permanently make an object public
   • DTo create a new bucket
   Reveal Solution Discussion Select an answer first
5. 4foundation · easy

   In a Cloud Spanner schema, what is the primary purpose of interleaving tables?

   • ATo automatically replicate data across regions
   • BTo physically co-locate related rows for efficient access
   • CTo compress data to reduce storage costs
   • DTo enforce foreign key constraints across tables
   Reveal Solution Discussion Select an answer first
6. 5foundation · easy

   Which file format is commonly used when loading data into BigQuery from Cloud Storage?

   • AParquet
   • BJPEG
   • CMP4
   • DZIP
   Reveal Solution Discussion Select an answer first