- A
gcloud sql instances patch my-instance --storage-size 250GB
Why wrong: The size should be specified without 'GB' suffix; the unit is GB by default. Correct syntax is --storage-size=250.
- B
gcloud sql instances patch my-instance --storage-size 250
This increases the disk to 250 GB. The command is valid and disk resize is online.
- C
gcloud sql instances update my-instance --storage-size 250
Why wrong: The correct command is 'patch', not 'update'.
- D
gcloud sql instances resize my-instance 250
Why wrong: There is no 'resize' subcommand; the correct command is 'patch' with --storage-size.
Question 530 of 1,000
PCDOE Manage Database Solutions Practice Question
This PCDOE practice question tests your understanding of manage database solutions. 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.
You notice that your Cloud SQL for MySQL instance's storage is filling up quickly. You have enabled automatic storage increase, but you want to manually increase the storage size by 50 GB to avoid any risk of reaching the limit. The current disk size is 200 GB. What is the correct gcloud command to resize the disk?
Answer choices
Why each option matters
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
gcloud sql instances patch my-instance --storage-size 250
Option B is correct because the `gcloud sql instances patch` command is used to modify an existing Cloud SQL instance, and the `--storage-size` flag expects the value in GB as an integer (without the 'GB' suffix). Specifying `250` correctly increases the storage from 200 GB to 250 GB.
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
gcloud sql instances patch my-instance --storage-size 250GB
Why it's wrong here
The size should be specified without 'GB' suffix; the unit is GB by default. Correct syntax is --storage-size=250.
- ✓
gcloud sql instances patch my-instance --storage-size 250
Why this is correct
This increases the disk to 250 GB. The command is valid and disk resize is online.
Related concept
Read the scenario before looking for a memorised answer.
- ✗
gcloud sql instances update my-instance --storage-size 250
Why it's wrong here
The correct command is 'patch', not 'update'.
- ✗
gcloud sql instances resize my-instance 250
Why it's wrong here
There is no 'resize' subcommand; the correct command is 'patch' with --storage-size.
Common exam traps
Common exam trap: answer the scenario, not the keyword
Cisco often tests the exact syntax of gcloud commands, specifically that the `--storage-size` flag takes a plain integer (no 'GB' suffix) and that `patch` is the correct subcommand for modifying an existing instance, not `update` or `resize`.
Trap categories for this question
Command / output trap
The correct command is 'patch', not 'update'.
Detailed technical explanation
How to think about this question
The `gcloud sql instances patch` command uses the Cloud SQL Admin API v1beta4 under the hood, which accepts the `settings.dataDiskSizeGb` field as an integer. When you increase storage, Cloud SQL performs an online resize without downtime, but the new size must be at least the current size and cannot exceed the instance's maximum storage limit (e.g., 30 TB for MySQL). A real-world scenario is when you need to preemptively add storage before an automatic increase triggers, which can cause a brief performance impact during the resize operation.
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.
TExam Day Tips
- 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.
Real-world example
How this comes up in practice
A media company stores terabytes of video archives that are accessed once a year for audit purposes. Moving these objects to a cold storage tier (Azure Archive, S3 Glacier, or Google Nearline) costs a fraction of hot storage. Questions like this test whether you understand storage tiers, access frequency tradeoffs, and retrieval latency requirements.
What to study next
Got this wrong? Here's your next step.
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
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Manage Database Solutions — study guide chapter
Learn the concepts, then practise the questions
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FAQ
Questions learners often ask
What does this PCDOE question test?
Manage Database Solutions — This question tests Manage Database Solutions — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: gcloud sql instances patch my-instance --storage-size 250 — Option B is correct because the `gcloud sql instances patch` command is used to modify an existing Cloud SQL instance, and the `--storage-size` flag expects the value in GB as an integer (without the 'GB' suffix). Specifying `250` correctly increases the storage from 200 GB to 250 GB.
What should I do if I get this PCDOE question wrong?
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
About these practice questions
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Last reviewed: Jul 4, 2026
This PCDOE 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 PCDOE exam.
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