diff --git a/homework5.txt b/homework5.txt
index cef63bb..583213b 100644
--- a/homework5.txt
+++ b/homework5.txt
@@ -1,3 +1,6 @@
 0. What is your name and student ID?
+김규민, 2020-17504
 1. What is .gitignore? You can write the answer either in Korean or English.
-2. Why do Github users need an SSH key pair? (Users can use either SSH key pair or github account info.) Please write down a brief explanation of SSH key.
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+It is to make sure certain files are not tracked.
+2. Why do Github users need an SSH key pair? (Users can use either SSH key pair or github account info.) Please write down a brief explanation of SSH key.
+SSH key pair, which is composed of a public key and a private key, is used to secure information and authenticate users.
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