Question1) The remote pipeline has failed on the continuous integration server. Normally, you see a red cross on the Gitlab when this happen. From the following choose 4 reasons for the failure:

1) the results of the tests after running it on the build and test server could not be uploaded to the user interface displaying the pipeline status.

2) The test runner, for example Gitlab runner, has failed on the build and test server.

3) your co-developers did not merge your code correctly and pushed code with syntax errors.

4) you were unclear in your commit messeges. Other developers misunderstood what you were doing and pushed code that is at conflict with your work.

5) you are using local dependencies which you did not push to the remote server.

6) the repository contains code which was pushed without the tests passing locally.

7) your code depends on a library which could not be fetched.

8) the commit frequency is high and therefore, the build and test server cannot take the load.

9) the repository contains code with incorrect syntax.

10) your test suit is inadequate and does not cover all behaviours of your code.

11) your code makes a network connection to a remote server which is down.

12) you are using relative paths in your program and do not hardcode local paths on your machine in your code.