12. Interpret a Unified Diff 200-901 Practice Questions (Page 5)

Questions 21–25

1. 21application · medium

   A network engineer is reviewing a unified diff for a configuration file. The hunk header reads: @@ -20,4 +20,2 @@. What does this header indicate?

   • AThe hunk starts at line 4 in the original and line 2 in the new file.
   • BThe hunk starts at line 20 in both files, with 4 lines of context.
   • CFour lines are removed from the original, and two lines are added in the new file.
   • DTwo lines are removed from the original, and four lines are added in the new file.
   Reveal Solution Discussion Select an answer first
2. 22application · medium

   A network engineer is using a unified diff to review changes to a configuration file. The diff header shows: --- config_old.txt 2024-01-01 10:00:00 +++ config_new.txt 2024-01-02 14:30:00 What does the header indicate?

   • AThe file config_new.txt was modified on January 1, and config_old.txt is the result of applying the diff.
   • BThe file config_old.txt was modified on January 1, and config_new.txt is the result of applying the diff.
   • CThe timestamps indicate when the diff was generated, not when the files were modified.
   • DThe diff shows changes from config_new.txt to config_old.txt.
   Reveal Solution Discussion Select an answer first
4. 23application · medium

   A network engineer is reviewing a unified diff for a configuration file. The diff contains the following hunk: @@ -5,3 +5,3 @@ ip route 10.0.0.0 255.0.0.0 192.168.1.1 -ip route 10.1.0.0 255.255.0.0 192.168.1.1 +ip route 10.1.0.0 255.255.0.0 192.168.1.2 ip route 10.2.0.0 255.255.0.0 192.168.1.1 What is the net change in the number of lines in the file?

   • AThe file has one fewer line after the change.
   • BThe file has one more line after the change.
   • CThe file has two more lines after the change.
   • DThe file has the same number of lines after the change.
   Reveal Solution Discussion Select an answer first
5. 24application · medium

   A network engineer is reviewing a unified diff that shows changes to a device configuration file. The diff header includes the line `--- old-config.cfg 2024-05-01 10:00:00` and `+++ new-config.cfg 2024-05-01 11:30:00`. What does the difference in filenames indicate?

   • AThe file was deleted and a new file was created with a different name.
   • BThe file was renamed from old-config.cfg to new-config.cfg.
   • CThe file was modified in place, and the filename changed due to a typo.
   • DThe diff is comparing two unrelated files.
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6. 25foundation · easy

   What is the purpose of a unified diff?

   • ATo merge two files into one automatically without user intervention
   • BTo list all lines in both files side by side for comparison
   • CTo display only the changed lines without any surrounding context
   • DTo show the differences between two versions of a file in a compact format that includes context lines
   Reveal Solution Discussion Select an answer first