Answer:
Pharming involves:
redirecting users to a fraudulent website even when the user has typed in the correct address in the web browser.
Explanation:
- When a hacker steals your confidential and private information by installing a malicious code on your computer which misdirects you to fake and fraudulent websites, this is called pharming.
- Hacker installs virus on your computer which manipulates the host files on your computer.
- The hacker uses DNS cache poisoning to attack DNS services on your computer which makes many users to enter fraudulent site, unknowingly, as they type the URL of the real website.
- These fraudulent website developed by hacker can install virus on your computer and steal confidential information from your computer.
- Pharming is done by hackers in order to steal sensitive data from a person's computer.
It is okay but you should be able to type up to 60+ words per minute and keep doing that to practice then if you can get into a typing class.
I think it’s B if not it’s D both are similar
Answer:
e(a) = 0
e(b) = 10
e(c) = 110
e(d) = 1110
Explanation:
The Worst case will happen when f(a) > 2*f(b) ; f(b) > 2*f(c) ; f(c) > 2*f(d) ; f(d) > 2*f(e) and f(e) > 2*f(f).
Where f(x) is frequency of character x.
Lets consider the scenario when
f(a) = 0.555, f(b) = 0.25, f(c) = 0.12, f(d) = 0.05, f(e) = 0.02 and f(f) = 0.005
Please see attachment for image showing the steps of construction of Huffman tree:- see attachment
From the Huffman tree created, we can see that endcoding e() of each character are as follows:-
e(a) = 0
e(b) = 10
e(c) = 110
e(d) = 1110
e(e) = 11110
e(f) = 11111
So we can see that maximum length of encoding is 5 in this case.
The 3 tasks learners can do in a Technology classroom.
1. Telling digital stories .
2. Filming tasks on mobile phones .
3. Making lists of things done.
<h3>What are the three roles of technology for learners?</h3>
Technology is known to be a tool that often gives a lot of students a kind of an easy-to-access to any kind of information, as well as an accelerated learning, and others that the student can use to learn.
Note that this helps students to look inro new subjects and have a wider understanding of difficult topics.
Hence, The 3 tasks learners can do in a Technology classroom.
1. Telling digital stories .
2. Filming tasks on mobile phones .
3. Making lists of things done.
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