12 Pricing & Limits questions from the Firebase bank, written for Indian campus drives and tech interviews. Every question has a verified answer and an AI-tutor explanation on placd.
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A.the expense of tallying a large collection by fetching its documents, mitigated by maintaining a counter or using an aggregation query
B.the pay-as-you-go tier that unlocks outbound calls and Cloud Functions while still including the free quota each month
C.the free no-cost tier with fixed daily quotas that blocks outbound networking and most paid integrations
D.the model where Firestore charges by each record returned, so a query touching many docs costs proportionally more
Answer + AI explanation with Pro
2. Which term means: "the free no-cost tier with fixed daily quotas that blocks outbound networking and most paid integrations"?
Junior
A.Blaze plan
B.Per-document read billing
C.Count-from-reads cost trap
D.Spark plan
Answer + AI explanation with Pro
3. Which statement is correct?
Junior
A.Spark plan — the free no-cost tier with fixed daily quotas that blocks outbound networking and most paid integrations
B.Spark plan — the model where Firestore charges by each record returned, so a query touching many docs costs proportionally more
C.Spark plan — the pay-as-you-go tier that unlocks outbound calls and Cloud Functions while still including the free quota each month
D.Spark plan — the expense of tallying a large collection by fetching its documents, mitigated by maintaining a counter or using an aggregation query
Answer + AI explanation with Pro
4. What is Blaze plan?
Junior
A.the pay-as-you-go tier that unlocks outbound calls and Cloud Functions while still including the free quota each month
B.the model where Firestore charges by each record returned, so a query touching many docs costs proportionally more
C.the expense of tallying a large collection by fetching its documents, mitigated by maintaining a counter or using an aggregation query
D.the free no-cost tier with fixed daily quotas that blocks outbound networking and most paid integrations
Answer + AI explanation with Pro
5. Which term means: "the pay-as-you-go tier that unlocks outbound calls and Cloud Functions while still including the free quota each month"?
Junior
A.Per-document read billing
B.Blaze plan
C.Spark plan
D.Count-from-reads cost trap
Answer + AI explanation with Pro
6. Which statement is correct?
Junior
A.Blaze plan — the model where Firestore charges by each record returned, so a query touching many docs costs proportionally more
B.Blaze plan — the pay-as-you-go tier that unlocks outbound calls and Cloud Functions while still including the free quota each month
C.Blaze plan — the free no-cost tier with fixed daily quotas that blocks outbound networking and most paid integrations
D.Blaze plan — the expense of tallying a large collection by fetching its documents, mitigated by maintaining a counter or using an aggregation query
Answer + AI explanation with Pro
7. What is Per-document read billing?
Mid
A.the free no-cost tier with fixed daily quotas that blocks outbound networking and most paid integrations
B.the pay-as-you-go tier that unlocks outbound calls and Cloud Functions while still including the free quota each month
C.the model where Firestore charges by each record returned, so a query touching many docs costs proportionally more
D.the expense of tallying a large collection by fetching its documents, mitigated by maintaining a counter or using an aggregation query
Answer + AI explanation with Pro
8. Which term means: "the model where Firestore charges by each record returned, so a query touching many docs costs proportionally more"?
Mid
A.Blaze plan
B.Count-from-reads cost trap
C.Per-document read billing
D.Spark plan
Answer + AI explanation with Pro
9. Which statement is correct?
Mid
A.Per-document read billing — the model where Firestore charges by each record returned, so a query touching many docs costs proportionally more
B.Per-document read billing — the free no-cost tier with fixed daily quotas that blocks outbound networking and most paid integrations
C.Per-document read billing — the expense of tallying a large collection by fetching its documents, mitigated by maintaining a counter or using an aggregation query
D.Per-document read billing — the pay-as-you-go tier that unlocks outbound calls and Cloud Functions while still including the free quota each month
Answer + AI explanation with Pro
10. What is Count-from-reads cost trap?
Senior
A.the model where Firestore charges by each record returned, so a query touching many docs costs proportionally more
B.the pay-as-you-go tier that unlocks outbound calls and Cloud Functions while still including the free quota each month
C.the expense of tallying a large collection by fetching its documents, mitigated by maintaining a counter or using an aggregation query
D.the free no-cost tier with fixed daily quotas that blocks outbound networking and most paid integrations
Answer + AI explanation with Pro
11. Which term means: "the expense of tallying a large collection by fetching its documents, mitigated by maintaining a counter or using an aggregation query"?
Senior
A.Count-from-reads cost trap
B.Spark plan
C.Blaze plan
D.Per-document read billing
Answer + AI explanation with Pro
12. Which statement is correct?
Senior
A.Count-from-reads cost trap — the pay-as-you-go tier that unlocks outbound calls and Cloud Functions while still including the free quota each month
B.Count-from-reads cost trap — the model where Firestore charges by each record returned, so a query touching many docs costs proportionally more
C.Count-from-reads cost trap — the free no-cost tier with fixed daily quotas that blocks outbound networking and most paid integrations
D.Count-from-reads cost trap — the expense of tallying a large collection by fetching its documents, mitigated by maintaining a counter or using an aggregation query
Answer + AI explanation with Pro
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