Web Server Security Essentials

What is a web server?

• A web server is a system that delivers web content to clients via the internet.

• A web server is a type of database.

• A web server is a hardware device for storing files.

• A web server is a programming language.

Why is web server security important?

• To reduce the cost of hosting services.

• To increase server speed and performance.

• To enhance the visual design of the website.

• Web server security is important to protect data and maintain trust.

What is an SQL injection attack?

• An SQL injection attack is a code injection technique that exploits a vulnerability in an application's software by inserting malicious SQL statements into an entry field for execution.

• A process of backing up SQL databases to prevent data loss.

• A technique to secure databases from unauthorized access.

• A method to optimize SQL queries for better performance.

How can you prevent cross-site scripting (XSS)?

• Disable all JavaScript

• Allow all user input without checks

• Validate and sanitize user input, use Content Security Policy (CSP), escape output data.

• Use HTTP-only cookies

What role does HTTPS play in web server security?

• HTTPS increases website loading speed significantly.

• HTTPS is only used for website aesthetics.

• HTTPS is a type of web server software.

• HTTPS secures data transmission and protects against various cyber threats.

What is a firewall and how does it protect a web server?

• A firewall is used to store web server data.

• A firewall only speeds up web server performance.

• A firewall protects a web server by monitoring and controlling network traffic, blocking unauthorized access, and preventing attacks.

• A firewall is a type of web server software.

What are the common types of web server vulnerabilities?

• Malware distribution

• Phishing attempts

• SQL injection, cross-site scripting (XSS), remote file inclusion, denial of service (DoS) attacks.

• Buffer overflow attacks

How can regular updates improve web server security?

• Regular updates improve web server security by patching vulnerabilities and enhancing security features.

• Regular updates slow down server performance.

• Regular updates increase the risk of data loss.

• Regular updates are only necessary for hardware upgrades.

What is the purpose of a web application firewall (WAF)?

• To enhance the speed of web applications

• To store user data securely

• To manage server load and traffic distribution

• The purpose of a web application firewall (WAF) is to protect web applications by filtering and monitoring HTTP traffic.

Why is user authentication critical for web server security?

• User authentication is critical for preventing unauthorized access and protecting sensitive data.

• User authentication is primarily for aesthetic purposes.

• User authentication slows down the server response time.

• User authentication is only necessary for mobile applications.