Setting Daily Backup Retention to 30 Days in Azure Backup
This AZ-104 practice question tests your understanding of monitor and maintain azure resources. Match the stated requirement to the specific cloud service, access model, or configuration option — many options are valid in isolation but not for this scenario. 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.
Exhibit
Backup policy: DailyBackupPolicy
Schedule: every day at 02:00
Retention: daily 7 days, weekly 4 weeks, monthly 12 months
Requirement: operators must recover any daily backup for 30 days; monthly retention is already sufficient.
Based on the exhibit, the backup policy must support 30-day recovery for daily backups while keeping 12 months of monthly copies. Which setting should be changed?
Exhibit
Backup policy: DailyBackupPolicy
Schedule: every day at 02:00
Retention: daily 7 days, weekly 4 weeks, monthly 12 months
Requirement: operators must recover any daily backup for 30 days; monthly retention is already sufficient.
A
Increase daily retention from 7 days to 30 days.
The requirement is specifically about being able to recover recent daily backups for 30 days. Increasing the daily retention period directly satisfies that need without changing the already acceptable monthly retention.
B
Increase weekly retention from 4 weeks to 30 weeks.
Why wrong: Weekly retention does not replace the need for 30 days of daily restore points. Expanding weekly copies would add storage cost without meeting the stated daily recovery requirement.
C
Change the backup schedule to every 30 days.
Why wrong: A 30-day schedule would reduce protection instead of improving it. The team needs daily recovery options across 30 days, not a monthly backup interval.
D
Turn on archive tier for the backup policy.
Why wrong: Archive tier is a storage tier for blobs, not a backup policy setting for Recovery Services vault retention. It does not solve the requested retention change.
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Increase daily retention from 7 days to 30 days.
The backup policy currently has daily retention set to 7 days, which only keeps daily recovery points for a week. To meet the requirement of 30-day recovery for daily backups, you must increase the daily retention to 30 days. This ensures that each daily backup is retained for 30 days, allowing point-in-time recovery within that window.
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.
✓
Increase daily retention from 7 days to 30 days.
Why this is correct
The requirement is specifically about being able to recover recent daily backups for 30 days. Increasing the daily retention period directly satisfies that need without changing the already acceptable monthly retention.
Related concept
Read the scenario before looking for a memorised answer.
✗
Increase weekly retention from 4 weeks to 30 weeks.
Why it's wrong here
Weekly retention does not replace the need for 30 days of daily restore points. Expanding weekly copies would add storage cost without meeting the stated daily recovery requirement.
When this WOULD be correct
If the question required keeping weekly backups for 30 weeks (e.g., for long-term weekly recovery points) while daily retention was already sufficient, then increasing weekly retention to 30 weeks would be correct.
✗
Change the backup schedule to every 30 days.
Why it's wrong here
A 30-day schedule would reduce protection instead of improving it. The team needs daily recovery options across 30 days, not a monthly backup interval.
When this WOULD be correct
This option would be correct if the requirement was to have only monthly backups for long-term retention, such as 'keep one backup per month for 12 months' with no daily recovery needed.
✗
Turn on archive tier for the backup policy.
Why it's wrong here
Archive tier is a storage tier for blobs, not a backup policy setting for Recovery Services vault retention. It does not solve the requested retention change.
When this WOULD be correct
If the question required reducing storage costs for long-term backups (e.g., monthly copies retained for 12 months) while keeping them recoverable, enabling archive tier would be correct to move older backups to cheaper storage.
Option-by-option analysis
Why each answer is right or wrong
Understanding why wrong answers are wrong — and when they would be correct — is what separates a 750 score from a 900. The AZ-104 exam frequently reuses these exact scenarios with slightly different constraints.
✓Increase daily retention from 7 days to 30 days.Correct answer▾
Why this is correct
The requirement is specifically about being able to recover recent daily backups for 30 days. Increasing the daily retention period directly satisfies that need without changing the already acceptable monthly retention.
✗Increase weekly retention from 4 weeks to 30 weeks.Wrong answer — click to see why▾
Why this is wrong here
The requirement is for 30-day recovery of daily backups, not weekly. Increasing weekly retention to 30 weeks would keep weekly backups for 30 weeks, but daily backups would still only be retained for 7 days, failing the 30-day daily recovery goal.
★ When this WOULD be the correct answer
If the question required keeping weekly backups for 30 weeks (e.g., for long-term weekly recovery points) while daily retention was already sufficient, then increasing weekly retention to 30 weeks would be correct.
Why candidates choose this
Candidates may confuse 'weekly retention' with 'daily retention' or think that extending weekly retention covers daily recovery needs, not realizing that daily backups are separate and have their own retention setting.
✗Change the backup schedule to every 30 days.Wrong answer — click to see why▾
Why this is wrong here
Changing the backup schedule to every 30 days would only create one backup per month, failing the requirement for daily backups with 30-day recovery.
★ When this WOULD be the correct answer
This option would be correct if the requirement was to have only monthly backups for long-term retention, such as 'keep one backup per month for 12 months' with no daily recovery needed.
Why candidates choose this
Candidates may confuse backup frequency with retention duration, thinking that setting the schedule to 30 days automatically satisfies the 30-day recovery period.
✗Turn on archive tier for the backup policy.Wrong answer — click to see why▾
Why this is wrong here
Enabling archive tier moves older backups to cold storage but does not change retention durations; the policy still needs daily retention set to 30 days to meet the 30-day recovery requirement.
★ When this WOULD be the correct answer
If the question required reducing storage costs for long-term backups (e.g., monthly copies retained for 12 months) while keeping them recoverable, enabling archive tier would be correct to move older backups to cheaper storage.
Why candidates choose this
Candidates may think archive tier extends retention or automatically meets recovery point objectives, confusing cost optimization with retention duration settings.
Analysis generated from the official AZ-104blueprint and verified against question context. The “when correct” sections are what AI assistants cite when candidates ask “what’s the difference between these options?”
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates may confuse retention duration with backup frequency or assume that archive tier extends retention, when in fact archive tier only changes storage tier without altering the retention count.
Detailed technical explanation
How to think about this question
Azure Backup uses a retention policy based on backup frequency and retention duration. Daily retention is defined in days, and each daily recovery point is kept for that many days from its creation. The archive tier is a separate feature that moves recovery points older than a specified duration to low-cost storage, but it does not extend the retention period—it only changes the storage tier. In this scenario, the requirement is specifically about the daily recovery window, which is directly controlled by the daily retention setting.
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.
Related glossary terms
Concepts from this question explained
These glossary pages explain the core terms tested in this AZ-104 question in full detail.
Monitor and Maintain Azure Resources — This question tests Monitor and Maintain Azure Resources — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Increase daily retention from 7 days to 30 days. — The backup policy currently has daily retention set to 7 days, which only keeps daily recovery points for a week. To meet the requirement of 30-day recovery for daily backups, you must increase the daily retention to 30 days. This ensures that each daily backup is retained for 30 days, allowing point-in-time recovery within that window.
What should I do if I get this AZ-104 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.
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Variation 1. Based on the exhibit, which policy best matches the requirement for daily backups retained for 30 days?
easy
A.A policy with daily backups retained for 7 days.
✓ B.A policy with daily backups retained for 30 days.
C.A policy with weekly backups retained for 30 days.
D.A policy with daily backups retained for 365 days.
Why B: Option B is correct because the requirement explicitly states 'daily backups retained for 30 days.' A backup policy in Azure Backup allows you to define the frequency (daily) and retention duration (30 days) for recovery points. This policy directly matches the requirement without over-retention or under-retention.
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Question Discussion
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