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WorksheetsCDAC - Password Cracking
Total questions: 10
Worksheet time: 5mins
What is the primary characteristic of a brute force attack?
It uses social engineering
It attempts every possible password combination
It uses previously leaked password lists
It only targets Windows systems
Which of these is a key limitation of brute force attacks?
Requires physical access
Only works on weak passwords
Time and computationally intensive
Not detectable by firewalls
What is the purpose of the -P flags in the Hydra command?
To define network ports
To select encryption methods
To specify password files
To scan open services
Which command helps you check if SSH is active on Ubuntu?
sudo systemctl ssh enable
sudo check ssh
sudo systemctl status ssh
sudo status systemctl ssh
Why are dictionary attacks faster than brute force?
They use GPU acceleration
They use every possible combination
They only test common passwords
They crack hashes directly
Which tool is mainly used to crack offline password hashes using CPU or GPU?
Hydra
Aircrack-ng
John the Ripper
Nessus
Which of the following is NOT a valid brute force prevention method?
Using CAPTCHA
Implementing MFA
Enabling root access by default
Account lockout after failed attempts
What does a hybrid attack combine?
Online and offline methods
Brute force and phishing
Dictionary and brute force
Encryption and cracking
What is the role of the openssh-server in the Ubuntu setup?
To manage passwords
To create users
To allow SSH remote login
To store password hashes
What is the main function of Aircrack-ng?
Cracking email accounts
Cracking Wi-Fi passwords
Cracking SSH passwords
Brute-forcing Windows passwords
