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Answer: roles/spanner.databaseReader
The question is about assigning the appropriate Cloud Spanner IAM role to new users who should have read-only access to the database. Option A, 'roles/spanner.databaseReader', is the correct choice because it grants read-only access to a Cloud Spanner database, which aligns with the requirement for new users. Option B, 'roles/spanner.databaseUser', grants both read and write access, which exceeds the requirement. Option C, 'roles/spanner.viewer', allows viewing of Spanner instances but does not grant access to the data within the databases, making it insufficient for the requirement. Option D, 'roles/spanner.backupWriter', is unrelated to the requirement as it pertains to backup operations, not data access. Therefore, the correct answer is A.
Author: LeetQuiz Editorial Team
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What Cloud Spanner IAM roles should be assigned to new users who require read-only access to the database, while experienced users retain read and write permissions for the mission-critical, globally available application?
A
roles/spanner.databaseReader
B
roles/spanner.databaseUser
C
roles/spanner.viewer
D
roles/spanner.backupWriter
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