AZ-400 Question #471: Real Exam Question with Answer & Explanation

Question

You have a 1-TB Azure Repos repository named repo1. You need to clone repo1. The solution must meet the following requirements: - You must be able to search the commit history of the /src directory - The amount of time it takes to clone the repository must be minimized Which command should you run?

Options

• Agit clone --depth-1 [email protected]:v3/org/Project1/repo1
• Bgit clone --filter=blob:none [email protected]:v3/org/Project1/repo1
• Cgit clone [email protected]:v3/org/Project1/repo1
• Dgit clone --filter=true:0 [email protected]:v3/org/Project1/repo1

Explanation

Explanation

Option B (--filter=blob:none) performs a blobless clone, which downloads all commits and tree objects (preserving full commit history for any directory including /src) but skips downloading file contents (blobs) until they are needed - dramatically reducing clone time for large repositories like a 1 TB repo.

Why the distractors are wrong:

• Option A (--depth=1) creates a shallow clone with only the most recent commit snapshot, which breaks commit history search - violating the first requirement.
• Option C is a full clone with no optimization flags, which would download the entire 1 TB repository and fails to minimize clone time.
• Option D (--filter=true:0) is not a valid Git filter syntax and would produce an error.

Memory Tip 💡

Think of --filter=blob:none as "give me the map (history/commits), but not the cargo (file contents)" - you can still navigate the full history of /src, but heavy file data is only fetched on demand, keeping the initial clone fast. Whenever an exam question requires both full history AND speed, reach for --filter=blob:none.

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