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GCDL Practice Question: What does 'durability' mean for cloud storage…
This GCDL practice question tests your understanding of what does 'durability' mean for cloud storage…. Read the scenario carefully and evaluate each option against the stated constraints before committing to an answer. After answering, compare your reasoning against the explanation and wrong-answer breakdown below. Once you have made your selection, read the full explanation to reinforce the concept and understand why each distractor is designed to mislead on exam day.
What does 'durability' mean for cloud storage services, and how is it different from 'availability'?
Answer choices
Why each option matters
Good practice is not just finding the correct option. The wrong answers often show the exact trap the exam wants you to fall into.
A
Distractor review
Durability and availability are the same thing — both measure how often data can be accessed.
They measure different properties: durability = probability data won't be lost (data integrity), availability = percentage of time data can be accessed (service uptime).
B
Distractor review
High availability automatically guarantees high durability, so both terms describe the same SLA.
A service can be highly available (always accessible) with low durability (poor data redundancy) if the single copy of data becomes corrupted. Both properties need to be independently addressed.
C
Distractor review
Durability refers to network speed; availability refers to storage capacity.
Network speed is throughput/bandwidth; storage capacity is measured in bytes. Neither of these definitions is correct for durability or availability.
D
Best answer
Durability measures the probability data won't be lost; availability measures the percentage of time data can be accessed — a service can be temporarily unavailable while data remains durable.
Data can be physically safe (11-nine durability) but temporarily inaccessible during maintenance or outage (lower availability). These are orthogonal properties that storage services optimize for independently.
Common exam trap
Common exam trap: answer the scenario, not the keyword
Many certification questions include familiar terms but test a specific constraint. Read the exact wording before choosing an answer that is generally true but wrong for this case.
Technical deep dive
How to think about this question
This question should be treated as a scenario, not a definition check. Identify the problem, the constraint and the best action. Then compare each option against those facts.
KKey Concepts to Remember
- Read the scenario before looking for a memorised answer.
- Find the constraint that changes the correct option.
- Eliminate answers that are true in general but not in this case.
- Use explanations to understand the rule behind the answer.
TExam Day Tips
- Underline the problem statement mentally.
- Watch for words such as best, first, most likely and least administrative effort.
- Review why wrong options are wrong, not only why the correct option is correct.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Related practice questions
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Use these pages to review the topic behind this question. This is how one missed question becomes focused revision.
More questions from this exam
Keep practising from the same exam bank, or move into a focused topic page if this question exposed a weak area.
Question 1
A traditional retailer currently maintains its own data centers, purchasing servers every 3–5 years and paying for facilities, power, and staff regardless of demand. When it migrates its workloads to the public cloud, which change in cost model does it experience?
Question 2
An e-commerce company plans its infrastructure for peak shopping events (e.g., Black Friday) which drive 50× normal traffic. On-premises, they must maintain 50× capacity year-round. In the cloud, they provision 50× capacity only during peak periods. Which cloud characteristic enables this cost optimization?
Question 3
Which term describes the process by which organizations integrate digital technology into all areas of their business, fundamentally changing how they operate and deliver value to customers?
Question 4
When a company moves from maintaining its own data center to using Google Cloud, which operational responsibility does Google assume that the company previously managed?
Question 5
A hospital runs a patient records system that must remain on-premises due to strict regulatory data residency requirements. However, they also want to use cloud-based AI for diagnostic imaging analysis. Which cloud deployment model best describes their architecture?
Question 6
What is virtualization in the context of cloud computing, and why is it fundamental to how cloud providers deliver services?
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FAQ
Questions learners often ask
What does this GCDL question test?
Read the scenario before looking for a memorised answer.
What is the correct answer to this question?
The correct answer is: Durability measures the probability data won't be lost; availability measures the percentage of time data can be accessed — a service can be temporarily unavailable while data remains durable. — Durability measures the probability that stored data will NOT be lost over time — typically expressed as 'nines of durability' (e.g., 11 nines = 99.999999999% chance data is intact per year). High durability is achieved through redundant copies across multiple storage devices. Availability measures the percentage of time data can be accessed (the service is operational). A service can have high durability (data is safe) but temporarily low availability (data exists but can't be reached during an outage).
What should I do if I get this GCDL question wrong?
Identify which GCDL exam domain this question belongs to, then review the specific concept being tested. Practise related questions in that domain and focus on understanding why each wrong answer is tempting — not just why the correct answer is right.
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This GCDL practice question is part of Courseiva's free Google Cloud certification practice question bank. Courseiva provides original exam-style practice questions with explanations, topic-based practice, mock exams, readiness tracking, and study analytics to help learners prepare for the GCDL exam.