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Ethical Hacking Interview Questions
Denial of Service, is a malicious attack on network that is done by flooding the network with useless traffic. Although, DOS does not cause any theft of information or security breach, it can cost the website owner a great deal of money and time.
* Buffer Overflow Attacks
* SYN Attack
* Teardrop Attack
* Smurf Attack
* Viruses
Yes, a personal computer system or network can be protected from getting hacked by :
* Updating the operating systems for security updates
* Formatting any device intended to sell
* Securing the Wi-Fi with a password
* Using memorable and tough security answers
* Emailing via a trusted source
* Not storing any sensitive information on cloud
The process of hacking any computer network or system includes :
Reconnaissance : The first step taken by a hacker is identifying the target and fetching information as much information they could.

Scanning : The next step is examining the victim by exploiting the information gathered during reconnaissance, using automated tools like port scanners, mappers, or vulnerability scanners.

Gaining access : This initiates the process of hacking, where the collected information helps to gain access to the computer network or system.

Maintaining access : The hacker now would like to access it repetitively, and thus need to secure it through backdoors, rootkits, and Trojans.

Covering tracks : To avoid detection and any legal action, hackers erase the tracks that may lead to investigators tracing them.
The most popular hacking tools used in ethical hacking are :
* Acunetix
* Aircrack
* Angry IP Scanner
* Burp Suite
* Ettercap
* GFI LanGuard
* Netsparker
* Probely
* SaferVPN
* Savvius
Based on the category of being hacked, hacking is divided into different types as follows :
Website hacking : It refers to unauthorized access over a web server and its associated software such as databases and interfaces, and making changes to the information.

Network hacking : It refers to collecting data about a network using tools like Telnet, ping, etc., with the intent to harm the network and hamper its operations.

Email hacking : It refers to unauthorized access to the email account and utilizing it without the owner’s permission.

Password hacking : It refers to the process of recovering secret passwords from data that has been stored in the computer system.

Computer hacking : It refers to unauthorized access to the computer and stealing the data such as computer passwords and ID by employing hacking techniques.
Advantages :
* It helps to fight against cyber terrorism and national security breaches.
* It helps to take preventive actions against hackers.
* Detects the weaknesses and closes the gaps in a system or a network.
* Prevents gaining access from malicious hackers.
* Provides security to banking and financial settlements.

Disadvantages :
* Might use the data against malicious hacking activities.
* May corrupt the files of an organization.
* Possibility to steal sensitive information on the computer system.
Most broadly utilized scripting language for Hackers is Python. Python has some very critical highlights that make it especially valuable for hacking, most importantly, it has some pre-assembled libraries that give some intense functionality.
Pharming : In this strategy the attacker compromises the DNS (Domain Name System) servers or on the user PC with the goal that traffic is directed towards malicious site
Defacement : In this strategy the attacker replaces the firm’s site with an alternate page. It contains the hacker’s name, images and may even incorporate messages and background music.
SNMP is the abbreviation for Simple Network Management Protocol and is a simple Transmission Control Protocol/Internet Protocol (TCP/IP) for remote monitoring and managing hosts, routers, and other devices on a network.
Sniffing attack is a process similar to tapping a phone call and listening to the ongoing conversation. Hackers use sniffing attacks to monitor and capture all the network packets using sniffing tools in real-time.