Question 1hardmultiple choice
Full question →hardmultiple choiceObjective-mapped
A company stores petabytes of image files for a content delivery network. The images are accessed frequently for the first week, then rarely afterward. They must be retained for 5 years for compliance. The company wants to minimize storage costs while maintaining performance for frequently accessed data. Which storage solution and tier strategy should they recommend?
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
Best answer
Azure Blob Storage with a lifecycle policy: Hot for 7 days, Cool for the remainder of 5 years
Lifecycle management automates tier transitions, minimizing cost while keeping data accessible.
B
Distractor review
Azure Files with premium tier
Azure Files premium is costly and better suited for SMB shares, not bulk image storage with tiering.
C
Distractor review
Azure Data Lake Storage Gen2 with hot tier only
Keeping data in hot tier for 5 years would be expensive; lifecycle management should be used.
D
Distractor review
Azure Blob Storage with archive tier from day 1
Archive tier has high retrieval latency and cost, unsuitable for frequently accessed data in the first week.
Common exam trap
Common exam trap: NAT rules depend on direction and matching traffic
NAT is not only about the public address. The inside/outside interface roles and the ACL or rule that matches traffic are just as important.
Technical deep dive
How to think about this question
NAT questions usually test address translation, overload/PAT behaviour, static mappings and whether the right traffic is being translated. Read the interface direction and address terms carefully.
KKey Concepts to Remember
- Static NAT maps one inside address to one outside address.
- PAT allows many inside hosts to share one public address using ports.
- Inside local and inside global describe the private and translated addresses.
- NAT ACLs identify traffic for translation, not always security filtering.
TExam Day Tips
- Identify inside and outside interfaces first.
- Check whether the scenario needs static NAT, dynamic NAT or PAT.
- Do not confuse NAT matching ACLs with normal packet-filtering intent.
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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 company is designing hub-and-spoke networking. Spoke VNets must use a central Azure Firewall for outbound internet traffic. Which two configurations are required?
Question 2
A company is designing private access to a PaaS database from workloads in a VNet. The database should not be reachable over its public endpoint. What should be recommended?
Question 3
A data platform must support analytical queries over petabytes of files in a data lake, while preserving hierarchical namespaces and fine-grained ACLs. Which storage service should you design around?
Question 4
A database workload has an RPO of 15 minutes and an RTO of 4 hours. Cost is more important than near-zero data loss. Which design is usually more appropriate than synchronous multi-region replication?
Question 5
A hub-and-spoke Azure network must centralize outbound inspection and still allow spokes to resolve private endpoint DNS names. Which two components are commonly required? (Choose 2.)
Question 6
A multinational company uses Microsoft Entra ID and several Azure subscriptions. Security administrators need to review privileged role assignments every month and require justification for continued access. Which design should be recommended?
FAQ
Questions learners often ask
What does this AZ-305 question test?
Static NAT maps one inside address to one outside address.
What is the correct answer to this question?
The correct answer is: Azure Blob Storage with a lifecycle policy: Hot for 7 days, Cool for the remainder of 5 years — Azure Blob Storage with a lifecycle policy that moves data from Hot to Cool after 7 days optimizes cost: Hot provides low-latency access during the frequent period, Cool reduces cost for rarely accessed data. Archival would be cheaper but retrieval times (hours) are not suitable for data that may need occasional access. Premium tiers are unnecessary given the access pattern. Data Lake Storage is built on Blob Storage and offers the same tiering.
What should I do if I get this AZ-305 question wrong?
Then try more questions from the same exam bank and focus on understanding why the wrong options are tempting.
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