Out door air pollution has been a problem since ancient Romans...but the industrial revouloution was when outdoor air pollution increased and it a significant problem...
hope this helps
Answer 515be559d883f8eab00011e5
head is the tag at the top of your page containing your meta-tags, styles, scripts and title. headings are the h1, h2, h3 etc tags that allow you to size your text. a is an anker usable in the url for navigating to other pages or as in-page navigation.
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.
To learn more about ask scan refer to:
brainly.com/question/13055134
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Answers
- OS(The Operating System) sends <em>interrupts to the processor</em> to stop whatever is being processing at that moment and computer architecture send <em>data bus</em>. This bus sends<u> data between the processor,the memory and the input/output unit.</u>
- The operating system is a low-level software that supports a <em>computer’s basic functions</em>, such as <u>scheduling tasks and controlling peripherals</u> while the computer architecture has the <em>address bus bar</em>. This bus carries <u>signals related to addresses between the processor and the memory.
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- The interface between <em>a computer’s hardware and its software</em> is its Architecture while An operating system (OS) is<u> system software that manages computer hardware and software resources and provides common services for computer programs.</u>
Explanation:
In short explanation,the Computer Architecture specifically <em>deals with whatever that's going on in the hardware part of the computer system </em>while the Operating System is the computer program <em>which has been program to execute at some instances depending on the programming instructions embedded in it</em>. An example is the MS Office.
Answer:
Toolbar
Explanation:
j don't know if you meant that instead of scroll bar, but tool bar is the answer
