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Exam Professional Cloud Developer topic 1 question 220 discussion

Actual exam question from Google's Professional Cloud Developer
Question #: 220
Topic #: 1
[All Professional Cloud Developer Questions]

You work for an organization that manages an online ecommerce website. Your company plans to expand across the world; however, the estore currently serves one specific region. You need to select a SQL database and configure a schema that will scale as your organization grows. You want to create a table that stores all customer transactions and ensure that the customer (CustomerId) and the transaction (TransactionId) are unique. What should you do?

  • A. Create a Cloud SQL table that has TransactionId and CustomerId configured as primary keys. Use an incremental number for the TransactionId.
  • B. Create a Cloud SQL table that has TransactionId and CustomerId configured as primary keys. Use a random string (UUID) for the Transactionid.
  • C. Create a Cloud Spanner table that has TransactionId and CustomerId configured as primary keys. Use a random string (UUID) for the TransactionId.
  • D. Create a Cloud Spanner table that has TransactionId and CustomerId configured as primary keys. Use an incremental number for the TransactionId.
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Suggested Answer: C 🗳️
by zellck at Dec. 12, 2022, 2:11 p.m.

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__rajan__
6 months, 3 weeks ago
Selected Answer: C
C is correct.
upvoted 1 times
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purushi
8 months, 1 week ago
Selected Answer: C
Requirement is to scale globally. Cloud spanner is the best fit. UUID as a transaction ID is good for security purpose...avoids guessing of next transaction ID.
upvoted 1 times
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Pime13
1 year, 1 month ago
Selected Answer: C
across the world -> global/multi-region -> spanner uuid for primary key
upvoted 2 times
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omermahgoub
1 year, 2 months ago
C. Create a Cloud Spanner table that has TransactionId and CustomerId configured as primary keys. Use a random string (UUID) for the TransactionId. This will ensure that the combination of CustomerId and TransactionId is unique, even as your organization grows and expands across the world. Cloud Spanner is a highly scalable and globally-distributed SQL database, making it well-suited for this use case. Using a UUID for the TransactionId will ensure that it is unique across all regions and customers.
upvoted 1 times
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telp
1 year, 3 months ago
Selected Answer: C
Answer C, cloud spanner for multi-region and uui primary key to be sure to be unique
upvoted 1 times
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TNT87
1 year, 3 months ago
Selected Answer: C
https://cloud.google.com/spanner/docs/schema-design#uuid_primary_key Answer C
upvoted 1 times
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sharath25
1 year, 4 months ago
Selected Answer: C
option C
upvoted 1 times
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x_cath
1 year, 4 months ago
Selected Answer: C
Globally available --> Cloud Spanner (multi-region). Cloud SQL is a regional service.
upvoted 1 times
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zellck
1 year, 4 months ago
Selected Answer: C
C is the answer.
upvoted 1 times
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