Attackers frequently use ACK scans to circumvent a firewall or other filtering tools. During a NULL scan, all packet flags are enabled. The most recent versions of Nessus Server and Client are compatible with Windows, Mac OS X, FreeBSD, and the vast majority of Linux variants.
<h3>What is ack scan ?</h3>
- ACK scans are used to identify hosts or ports that have been blocked or are resistant to other types of scanning. An attacker uses TCP ACK segments to learn about firewall or ACL configuration.
- Attackers probe our router or send unsolicited SYN, ACK, and FIN requests to specific UDP/TCP ports.
- TCP ACK Scan sends an ACK message to the target port to determine whether or not it is filtered.
- On unfiltered ports, a RST reply packet will be sent for both open and closed ports. Filtered ports will either generate no response or generate an ICMP reply packet with an unreachable destination.
- The TCP ACK scanning technique attempts to determine whether a port is filtered by using packets with the ACK flag set.
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The language that you will use to add functionality to web pages is JavaScript.
<h3>What is JavaScript?</h3>
JavaScript is known to be a tool that is often used in a lot of ways.
It is used by in web development by Web developers as they are said to use this language to input interactive elements in websites.
Therefore, The language that you will use to add functionality to web pages is JavaScript.
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The advertisement below is an example of an <u>informative advertising</u>. Thus, option A is the correct option.
<h3>What is informative advertising?</h3>
Utilizing facts to highlight the advantages of a product's features rather than pandering to consumers' emotions is used in informative advertising.
Any advertisement has one main objective: to sell products. The choice of methods represents the only distinction. To achieve a particular objective, each of them offers unique opportunities. Additionally, different industries seem to benefit from particular techniques more than others.
Through the use of data and statistics that demonstrate the worth and applicability of a product, informative advertising attempts to influence a user's choice. The ability for users to verify any statement is crucial. Consumers are therefore more likely to trust a company when they are informed, and this increases the authority of brands.
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Answer:
it stands for Uniform Resource Locator.
Explanation:
Uniform Resource Locator: a location or address identifying where documents can be found on the internet.
Most basic examples of recursion, and most of the examples presented here, demonstrate direct recursion, in which a function calls itself. Indirect recursion occurs when a function is called not by itself but by another function that it called (either directly or indirectly). For example, if f calls f, that is direct recursion, but if f calls g which calls f, then that is indirect recursion of f. Chains of three or more functions are possible; for example, function 1 calls function 2, function 2 calls function 3, and function 3 calls function 1 again.
Indirect recursion is also called mutual recursion, which is a more symmetric term, though this is simply a difference of emphasis, not a different notion. That is, if f calls g and then g calls f, which in turn calls g again, from the point of view of f alone, f is indirectly recursing, while from the point of view of g alone, it is indirectly recursing, while from the point of view of both, f and g are mutually recursing on each other. Similarly a set of three or more functions that call each other can be called a set of mutually recursive functions.
