What happens when a developer runs `git checkout ` instead of a branch name?

A new branch is created at that commit, and HEAD is attached to it

The commit is reverted, and a new commit is created

The working directory is unchanged, and only HEAD is moved

HEAD is detached, and the working directory is updated to match that commit

CiscoCertified DevNet Professional

Domain 1Objective 10

Utilize Advanced Version Control Operations with Git 350-901 Practice Questions (Page 4)

Part of the 1.0 Software Development and Design domain, which accounts for 20% of the 350-901 exam. Cisco does not publish an official question count, but from its 120-minute exam (~50–80 total, ~10–16 in this domain), expect 1–1 from this objective — we provide 25 practice questions to prepare you well beyond it. (estimate)

25questions here

5free pages

5concepts

20%of the exam

Questions 16–20

16application · easy
A developer needs to restore a single file to its state from the last commit, discarding any uncommitted changes made to that file. Which command should they run?
Select an answer first
17foundation · easy
What happens when a developer runs `git checkout <commit-hash>` instead of a branch name?
Select an answer first
18application · medium
A developer has been working on a feature branch for two weeks. The main branch has moved forward with several commits from other team members. The developer wants to integrate the latest main branch changes into their feature branch before opening a pull request, and they want to preserve a clear record of exactly when the integration happened. Which command sequence should the developer run while on the feature branch?
Select an answer first
19application · medium
A developer accidentally staged a file with sensitive credentials and wants to remove it from the staging area, but they want to keep the file's changes in the working directory so they can edit it further. Which command should they run?
Select an answer first
20application · easy
A developer is in the middle of resolving a merge conflict. They have edited the conflicted file and staged it with git add. Before they commit, they realize they need to see the full list of files that still have unresolved conflicts. Which command should they run?
Select an answer first

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Utilize Advanced Version Control Operations with Git 350-901 Practice Questions (Page 4)

Questions 16–20

A developer needs to restore a single file to its state from the last commit, discarding any uncommitted changes made to that file. Which command should they run?

What happens when a developer runs `git checkout <commit-hash>` instead of a branch name?

A developer accidentally staged a file with sensitive credentials and wants to remove it from the staging area, but they want to keep the file's changes in the working directory so they can edit it further. Which command should they run?

A developer is in the middle of resolving a merge conflict. They have edited the conflicted file and staged it with git add. Before they commit, they realize they need to see the full list of files that still have unresolved conflicts. Which command should they run?

Keep studying — 1.0 Software Development and Design