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Ethical hacking is accessing someone's system with his approval in order to locate the entire system's weakness and then further restoring them.

Intelligence

Scanning Ability including port, vulnerability, and networks scanning

Able to access and maintain

Able to crack and guess passwords

Denial of Service attacks

Able to cover Tracks

Session Hijacking

3) How ethical hacking is beneficial?

Ethical hackers are hired by the company to strengthen their database security, preventing malicious attacks, private information stealing, and data theft.

The company hired them to perform certain hacking practices for finding the weakness of their system/server which further helps them to recover from it.

4) What do you mean by ARP poisoning?

Address Resolution Protocol poisoning is a network attack. Hackers attack on an Ethernet disturbs ARP's cache and modifies the MAC address.

5) Mention some of the tools that ethical hackers use of?

Metasploit

Wireshark

Nmap

Nikto

OpenVAS

SQLMap

IronWASP

Burp Suite

6) What is SQL injection?

SQL injection is the most common web hacking technique used by the hacker to destroy any database. It is the injection of malicious code through input in the SQL statement.

Hackers can able to execute administration operations on the database through SQL questions.

7) Mention some methods that hackers can use for SQL injection?

SQL injection can be done by a hacker through two methods :

a) Through URL, by manipulating query strings or with the use of select and union statement.

b) At login time with the use of multiple stored queries and procedures, "OR" condition and "having" clause.

8) Name some methods for preventing ARP poisoning?

a) Make use of VPN

b) ARP spoofing proof switch

c) Cryptographic network protocols

9) What is Mac Address?

The network interface card of every device is assigned a unique serial number called Mac Address. It can be changed only if we change the NIC card.

10) Ethical Hackers are categorized according to specifications. What are their types?

Certified Ethical Hackers

White Box Penetration Testers

Cyber Warrior

Black Box Penetration Tester

11) How MAC flooding technique used by Hackers?

This technique is implemented on the network switches. The main objective is targeted on the Mac table organized by the switches for storing the MAC address of the recipients.

Hackers send a huge number of Ethernet Frames to the switch as the intention of consuming memory of switch where MAC addresses are stored. When the Mac table is full, the switch will fail to save a new address.

This situation makes the switch behave like a Hub and start broadcasting like him. Hackers take advantage of this situation for stealing sensitive information.

12) Brute Force Hack?

It is a simpler and slow technique used by a hacker to crack the password for a system or resource access. For implementing this technique, the hacker must have knowledge about JavaScript language and can also make use of the hydra tool.

13) Name any two tools for DoS attacks?