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 best option and the one who explains itself better is the first option <span>Megabits per second; because the independent quantity is time in seconds and dependent quantity is amount of data in megabits. In this case the dependent variable is the amount of data in megabits, something you can control, but time in seconds is indeed the independent variable.</span>
Answer:
sorry maam/sir i wish i could help but i dont know how to answer that
Explanation:
because im middle school
Answer:
The "a" tag or <a></a> and its "h<u>r</u>ef" attribute <a href="#"></a>
Explanation:
In html there is only one way to create a link to an external source or a bookmark. The tag is created using the element <a>.
The attribute "href" is then added to describe the link of where it is to point to.
Example:
<a href="google.com">Go to Google</a>
While the text in between the tag describes what the link is about.
If you go into word and click the insert table you will see a section that says header, footer and page number. That is where you add a head and page number.