Which of the following numbered statements (shown immediately below) are true about the disadvantages of cloud computing?A fast and stable internet connection is required. Not knowing what happens if the cloud provider shuts down. Not knowing where the data is stored. Not knowing who has access to the data.单项选择题
A
a. Statements 1, 3 and 4 are.
B
b. Only statements 1 and 2 are true.
C
c. Statements 1, 2, 3 and 4 are true.
D
d. Only statements 3 and 4 are true.

Question

Which of the following numbered statements (shown immediately below) are true about the disadvantages of cloud computing?A fast and stable internet connection is required. Not knowing what happens if the cloud provider shuts down. Not knowing where the data is stored. Not knowing who has access to the data.单项选择题

A

a. Statements 1, 3 and 4 are.

B

b. Only statements 1 and 2 are true.

C

c. Statements 1, 2, 3 and 4 are true.

D

d. Only statements 3 and 4 are true.

BlackTom AI · Accepted Answer

Cloud computing disadvantages include dependence on connectivity, provider continuity, data location transparency, and access control concerns.

1) Relevant knowledge points and concepts
- Connectivity dependency: Cloud services require an internet connection; slow or unstable networks affect access and performance.
- Vendor dependency (vendor lock-in and shutdown risk): If a cloud provider ceases operation or discontinues a service, customers can lose access or face complex migrations.
- Data location (jurisdiction and sovereignty): Cloud providers may store data in multiple, sometimes unknown, geographic locations, raising legal and compliance issues.
- Access control and privacy: Cloud-hosted data may be accessible to provider staff, third parties, or suffer from misconfigurations, creating privacy/security concerns.

2) Step-by-step reasoning (evaluate each numbered statement)
Step 1 — Statement 1: "A fast and stable internet connection is required." True. Without reliable bandwidth and low latency, cloud-hosted applications and storage become unusable or degraded.
Step 2 — Statement 2: "Not knowing what happens if the cloud provider shuts down." True. Provider failure or business closure can interrupt service, risk data availability, and require contingency plans.
Step 3 — Statement 3: "Not knowing where the data is stored." True. Many providers replicate data across regions; customers may not know exact physical location, affecting compliance and legal jurisdiction.
Step 4 — Statement 4: "Not knowing who has access to the data." True. Provider personnel, subcontractors, or misconfigurations can expose data; transparency and access controls vary.

3) Calculations / intermediate steps
- Logical evaluation: All four individual assessments above yielded True, so the set {1,2,3,4} is true.

4) Why the correct answer is correct
Each statement names a common and legitimate disadvantage of cloud computing: connectivity reliance, provider risk, data residency uncertainty, and potential unauthorized access.

5) Why other options are incorrect
- a (1,3,4): Incorrect because it omits statement 2, which is also a valid disadvantage.
- b (only 1 and 2): Incorrect because it excludes 3 and 4, both true concerns.
- d (only 3 and 4): Incorrect because it excludes 1 and 2, both true concerns.

Conclusion: All four statements are true, so choice c (Statements 1, 2, 3 and 4 are true) is correct.

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