Your team decides to enforce a linear history on the main branch. Which Git feature would be most appropriate to achieve this?
- merge
- rebase
- squash
- cherry-pick
The correct option is rebase. Rebasing helps create a linear history by incorporating changes from one branch onto another, eliminating unnecessary merge commits. This promotes a cleaner and more straightforward history, especially on the main branch.
What are the implications of force pushing (git push --force) in a collaborative Git repository?
- It's a standard push operation
- It overwrites the remote branch with local changes
- It creates a new branch remotely
- It prompts collaborators for approval
Force pushing overwrites the remote branch with local changes, potentially causing conflicts for collaborators. It should be used cautiously to avoid disrupting others' work.
To handle large codebases in enterprise environments, Git can be integrated with ________ for enhanced performance.
- Jenkins
- Docker
- Bitbucket
- GitLab
Git can be integrated with Docker for enhanced performance in handling large codebases. Docker provides containerization, allowing consistent environments across different stages of the development lifecycle. This integration aids in efficient deployment and scalability.
What command is used to start a new branch in Git?
- git branch
- git init
- git new-branch
- git checkout -b
The 'git checkout -b' command is used to create and switch to a new branch in one step. It is a convenient shortcut for creating feature branches.
The function _______ is used to merge two sorted ranges in the C++ STL.
- combine
- concatenate
- merge
- join
The merge algorithm in C++ STL is used to merge two sorted ranges into a single, sorted range. Both input ranges should be sorted for the merge algorithm to work correctly.
The result of 5.5 + 2.5 in C++ is _______.
- 8
- 7.5
- 8
- 7
In C++, the addition of two floating-point numbers (like 5.5 and 2.5) will result in another floating-point number, which is 8.0 in this case.
Which of the following is not a type of iterator in C++ STL?
- Random access
- Bidirectional
- Dynamic
- Forward
The C++ STL provides several types of iterators like random access, bidirectional, and forward iterators. However, there is no iterator type named "Dynamic." Iterators are powerful tools in STL, allowing operations like traversal, reading, and writing to elements of container objects.
The function signature in C++ includes the function name and the _______.
- return type
- class name
- library
- parameters
A function signature in C++ is determined by its name and its parameter list. The return type is not considered a part of the function's signature.
Which keyword is often advised against using due to its potential to make code less readable and maintainable?
- class
- public
- goto
- private
The goto keyword allows for arbitrary jumps in code, which can make the code's flow hard to follow, leading to decreased readability and maintainability. Although it's available in C++, its use is generally discouraged in modern programming practices.
What is the behavior of a continue statement inside a while loop?
- It skips to the next iteration of the loop immediately.
- It breaks out of the loop.
- It restarts the loop from the very beginning.
- It throws an exception.
The continue statement inside loops, including a while loop, causes the program to skip any code following it in the current iteration and jump to the next iteration. It doesn't break out of the loop but just moves to the evaluation of the loop's condition for the next iteration.