Q. By analyzing the factors like TTL, DF bits, Window Size and TOS of a packet, an ethical hacker may verify the operating system remotely.

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Q. ______________ is a common tool used for doing OS fingerprinting.

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Q. To secure your system from such type of attack, you have to hide your system behind any VPN or proxy server.

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Q. A _____________ is a network scanning practice through which hackers can use to conclude to a point which IP address from a list of IP addresses is mapping to live hosts.

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Q. Ping sweep is also known as ________________

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Q. The _____________ command is used on Linux for getting the DNS and host-related information.

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Q. ___________________ is the method used to locate all the DNS-servers and their associated records for an organization.

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Q. Which of the following operations DNSenum cannot perform?

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Q. The configuration of DNS needs to be done in a secure way.

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Q. ________________ are piece of programs or scripts that allow hackers to take control over any system.

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Q. The process of finding vulnerabilities and exploiting them using exploitable scripts or programs are known as _____________

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Q. Which of them is not a powerful vulnerability detecting tool?

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Q. __________ is the specific search engine for exploits where anyone can find all the exploits associated to vulnerability.

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Q. Which of the following are not a vulnerability-listed site/database?

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Q. There are __________ types of exploits based on their working.

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Q. How many types of exploits are there based on their nature from hacking’s perspective?

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Q. Known exploits have a confirmation of and measures can be taken against it to resolve them.

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Q. Unknown exploits are those exploits that have not yet been reported openly and hence present a straightforward attack at firms and the government agencies.

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Q. A ____________ is a set of changes done to any program or its associated data designed for updating, fixing, or improving it.

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Q. Fixing of security vulnerabilities in a system by additional programs is known as __________ patches.

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