Most asked questions revolves around Firewall, malware, Phishing, Encryption, DDOS etc.
- What is a firewall and how does it work? A firewall is a security system that controls incoming and outgoing network traffic based on predetermined security rules. It is designed to block unauthorized access while allowing authorized communication. Firewalls can be hardware-based, software-based, or a combination of both. They can be configured to protect a single device, such as a computer, or a whole network.
- What is a virus and how does it differ from a worm? A virus is a type of malware that infects a computer by attaching itself to a legitimate program or file. It replicates itself and spreads to other computers through various means, such as email attachments or removable storage devices. A worm is similar to a virus, but it does not require a host program or file to spread. It can self-replicate and spread across networks on its own.
- What is a phishing attack and how can it be prevented? A phishing attack is a type of cybercrime in which the attacker tries to trick the victim into giving away sensitive information, such as login credentials or financial information, by disguising themselves as a trustworthy entity. These attacks can be carried out through email, social media, or other online channels. To prevent phishing attacks, it is important to be cautious when clicking on links or opening attachments from unknown sources, use strong and unique passwords, and keep all software up to date.
- What is encryption and how does it work? Encryption is the process of converting plaintext into ciphertext, which is unreadable without a decryption key. Encryption algorithms use a mathematical function and a secret key to perform the encryption and decryption processes. The key is used to scramble the data in a specific way, and without it, the data cannot be accessed.
- What is a denial of service (DoS) attack and how can it be mitigated? A denial of service (DoS) attack is a type of cyber attack in which the attacker tries to make a network or a service unavailable to its intended users by overwhelming it with traffic from multiple sources. DoS attacks can be mitigated by implementing measures such as rate limiting, which limits the number of requests a user can make in a given time period, and by filtering out illegitimate traffic.
- What is a man-in-the-middle (MitM) attack and how can it be prevented? A man-in-the-middle (MitM) attack is a type of cyber attack in which the attacker intercepts communication between two parties and pretends to be the other party in order to gain access to sensitive information. To prevent MitM attacks, it is important to use secure channels of communication, such as SSL/TLS-encrypted websites and virtual private networks (VPNs).
- What is two-factor authentication (2FA) and how does it work? Two-factor authentication (2FA) is a security process in which a user is required to provide two different authentication factors to access a system. These factors can be something the user knows, such as a password, something the user has, such as a smartphone, or something the user is, such as a fingerprint. By requiring multiple factors, 2FA makes it more difficult for attackers to gain unauthorized access.