diff --git a/.obsidian/workspace.json b/.obsidian/workspace.json
index 8be2601..568d9be 100644
--- a/.obsidian/workspace.json
+++ b/.obsidian/workspace.json
@@ -219,13 +219,13 @@
     "CCN/Ilias/Excercises/ccn1-exercise3_solution.pdf",
     "CCN/Ilias/Excercises/ccn1-exercise2_solution.pdf",
     "CCN/Ilias/Excercises/ccn1-exercise1_solution.pdf",
+    "CCN/Ilias/Excercises/ccn1-exercise5_solution.pdf",
     "CCN/Ilias/Lecture/CCN-8 - ExamPrep.pdf",
     "CCN/Ilias/Lecture/CCN-7 - Wireless.pdf",
     "CCN/Ilias/Lecture/CCN-6 - ApplicationLayer.pdf",
     "CCN/Ilias/Lecture/CCN-2-PhysicalLayer.pdf",
     "CCN/Ilias/Lecture/CCN-5 - TransportLayer.pdf",
     "CCN/Ilias/Lecture/CCN-4 - NetworkLayer.pdf",
-    "CCN/Ilias/Lecture/CCN-3 - DataLinkLayer.pdf",
     "Informationssicherheit/Ueb9/UEB_09.md",
     "English/KW26.md",
     "Informationssicherheit/Ueb7/Ueb07.md",