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Best Ethical Hacking Interview Questions and Answers
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Ethical Hacking Interview Questions and Answers
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Q1) Who is a Hacker?
Answer: A hacker is a person who exploits the weakness and shortfalls in a computer system or network. This process can contain engaging in illegal activities like stealing private information, accessing and altering network configuration, sabotaging the user interface of the computer OS.
Q2) What is Ethical Hacking?
Answer: Ethical hacking is the process of intruding a network or a system to identify the threats or vulnerabilities present in them. This process enables us to fix the weaker areas of the systems or network in order to protect them from persons who try to attack them.
Q3) What are the different types of Hackers?
Answer:In the process of hacking, there are many types of hackers and ways of doing it. Below are some of them:
- White Hat Hackers
- Black Hat Hackers
- Grey Hat Hackers
- Blue Hat Hackers
- Elite Hackers
- Intelligence Agencies
- Organized Crime.
Q4) What are the steps performed by Hackers to hack a System or Network?
Answer: The steps performed by hackers to intrude systems or network are as follows:
- Reconnaissance: In this process, the hacker tries to gather user information and finds weak spots if present.
- Scanning and Enumeration: In this process, the hacker uses the gathered information to examine and test the network.
- Gaining Access: After successfully completing the first and second phase, the hacker has complete access to the System and Network.
- Maintaining the Access: As the hacker has breached your security access in the previous stage, he now tries to install some scripts and sees that he has total access to the computer in the future.
- Clearing Tracks: In this stage, the hacker tries to clear all the tracks and tries to escape from getting detected by security personnel.
Q5) What is a Sniffing attack?
Answer: Sniffing is a procedure used by hackers to monitor and capture all the network packets with the help of sniffing tools. For example, this process is similar to tapping a phone call and listening to the ongoing conversation.
Q6) What the various sniffing tools available?
Answer: There are many sniffing tools available, all have their own features of gathering information and analyzing traffic. Some of the commonly used tools are listed below:
- MSN Sniffer
Q7) What is Spoofing?
Answer: Spoofing is the process of making communication by hiding the identity and acting as a trusted source. It is used to gain access to the target system and used to spread malware through harmful attachments or infected links. Spoofing can be done in many ways like:
- Phone calls
- IP address
- Domain Name System(DNS)
Q8) What is Phishing?
Answer: Phishing involves a process of contacting the target user by email, phone or text message and gathering sensitive information like credit card details, passwords, etc.
Q9) What is Ddos Attack?
Answer: “DDoS” or “Distributed Denial of Service” is explained as a malicious attempt to interrupt regular traffic of a targeted server or network by profusing the target with a flood of internet traffic.
Q10) What are the types of DDoS attacks?
Answer: DDos attacks are mainly of three types, they are:
- Application Layer Attacks
- Protocol Attacks
- Volumetric Attacks
Q11) What is SQL injection?
Answer: Sql injections is a web hacking technique used to destroy a database. It executes malicious SQL statements and controls a database server behind a web application. Hackers make use of these statements to bypass the security measures of the application.
Q12) What is the difference between Vulnerability Scanning and Penetration testing?
Answer: Both penetration testing and vulnerability scanning are powerful tools for monitoring and improving information security. Let’s see the difference between them:
|Vulnerability Scanning||Penetration Testing|
|This is an automated test.||This is a manual test conducted by a security professional.|
|Detects and reports Vulnerabilities.||Exploits Vulnerabilities and determines the type of access.|
|This is an instructive method||This is a non-instructive method|
|Need to be done continuously.||Usually done once a year.|
Q13) What is Footprinting?
Answer: Footprinting is a process of gathering user data and finding ways to penetrate a target system. A hacker tries to collects all the information about the organization, host, network and people before intruding a network or a system.
Q14) What is Network Enumeration?
Answer: Extracting usernames, network resources, machine names and services from a system is known as Network Enumeration. This stage is crucial for an attacker to send direct queries and gain more information about the target by creating an active connection to the system.
Q15) What are the different types of penetration testing tools?
Answer: Accessing the security of IT systems is carried out by penetration testing. Here are some of the important tools to perform it:
- Burp Suite
Q16) Why hackers use a keylogger?
Answer: Keylogger is a basic tool used by software companies to troubleshoot and check if there are any technical problems on their network or systems. But, hackers use these keyloggers to track the keystrokes of the user and gain access to their sensitive information.
Q17) What is RAnsweromware?
Answer: RAnsweromware is a type of malware, which restricts users from accessing their personal files or system and demands a rAnswerom to regain access to them. Depending on the severity of the attack rAnsweromware is categorised into three types, they are:
- Screen lockers
- Encrypting rAnsweromware
Q18) What is Cryptojacking?
Answer: Malicious crypto mining or Cryptojacking is a type of online threat which uses the machine resources to mine forms of digital money known as cryptocurrency. This process can be carried out on a mobile device or on a computer.
Q19) How to protect yourself from getting hacked?
Answer: There are many ways to protect your personal computer from getting hacked, some of the important ones are listed below:
- Try to update your OS frequently for security updates to stay protected from hackers.
- Format all the devices which you plan to sell as there is a chance of information getting into other hands.
- Secure your wifi with a password and do not let it be open to others.
- Choose your security Answerwers creatively.
- Choose a smart way of emailing as the phishing campaigns are still live.
- Keep your sensitive information away from the cloud.
Q20) What is Adware?
Answer: Adware is a type of unwanted software created to show advertisements automatically onto your desktop or mobile screens. These appear mostly while using a web browser on a computer system or a mobile.
Q21) What is Data Breach?
Answer: Data breach comes under the process of a Cyberattack that enables cyber criminals to get unauthorised entry to a computer or a network. This allows them to steal private, confidential, sensitive and financial data of customers or existing users.
Most common attacks followed by cybercriminals are:
- Misconfigured or Broken access controls.
Q22) What is MIB?
Answer: Management Information Base(MIB) is a group of network objects which are manageable. These objects are a logical form of Physical networking components which are Simple Network Management Protocol(SNMP) Enabled. MIB’s store information about software versions, available storage disk space, IP address or port number.
Q23) What are different types of password cracking techniques?
Answer: There are mainly five types of password cracking techniques, they are:
- Hybrid attack
- Rainbow table attack
- Brute Force attack
- Syllable attack
- Rule attack
Q24) What are the different types of spoofing?
Answer: Different types of Spoofing attacks are:
- IP Spoofing Attack.
- DNS Spoofing Attack.
- Media Access Control (MAC)
- ARP Spoofing Attack.
Q25) What is Cowpatty?
Answer: Cowpatty is reliant on C-language which is used to run a brute-force dictionary attack against protected wifi protocols such as WPA-PSK and audit pre-shared WPA keys.
Q26) What are the best programming languages for Hacking?
Answer: Best programming languages useful for ethical hacking are:
- C- language
Q27) What is a Script kiddie?
Answer: A script kiddie is someone who lacks basic skills of programming knowledge and makes use of a simple software to perform an attack on a computer.
Q28) What is XSS or Cross Site Scripting?
Q29) What are an SSL session and SSL connection?
Answer: Secured Socket Layer(SSL) is a peer to peer communication system in which each connection is related to one SSL session. Whereas, an SSL session is defined as a link between client and server basically created by the handshake protocol.
Q30) List some components used in SSL?
Answer: SSL is used for providing secure connection between server and a browser. Here are some of the components used in SSL:
- Change Cipher Spec
- Handshake protocol
- SSL record protocol
- Encryption Algorithms.