Week 1

Question 1

What does SSH stand for?

Answer 1

Secure Shell Protocol

Question 2

What is the purpose of SSH?

Answer 2

Securely handle commands sent to another computer through a unsecured network

Question 3

How does SSH ensure security?

Answer 3

SSH uses public key cryptography to scramble and reveal information

Question 4

What is a Shell?

Answer 4

a programs that receives commands and sends them to the OS to handle

Question 5

In what order will Linux search for commands
first?

Answer 5

Linux will run shell functions before searching for build in scripts before looking at external commands in the PATH variable

Question 6

What four things does the kernel do?

Answer 6

1. Memory management
2. Process management
3. device drivers
4. system call and security

Question 7

How to remove a directory that contains files?

Answer 7

rm -r dirname

Question 8

how to set git user name and email>?

Answer 8

git config –global user.name user-name
git config –global user.email user-email