diff --git a/.zk/notebook.db b/.zk/notebook.db
index eb9f1d7..5ceaee0 100644
Binary files a/.zk/notebook.db and b/.zk/notebook.db differ
diff --git a/zk/Internet_fundamentals.md b/zk/Internet_fundamentals.md
index 2280421..d9fe3af 100644
--- a/zk/Internet_fundamentals.md
+++ b/zk/Internet_fundamentals.md
@@ -44,5 +44,4 @@ protocols. From the top:
   "plumbing". Examples of protocols operative at the Application Layer include
   HTTP and SSH.
 
-The Link Layer ... The Internet Layer ... The Transport Layer ... The
-Application Layer ...
+  ![Path of a network request accross the internet](../img/network-request-layers.png)