Answer:
He can define pas follows: Let P be defined on the set of languages accepted by some Turing machine M. Let it be True if 10 ] is 5 and False otherwise.
Explanation:
The domain of P is the SD languages since it is those languages that are accepted by some Turing machine H. P is nontrivial since P({ a, aa, aaa, aaaa, aaaaa, aaaaaa, b, bb, bbb, bbbb, bbbbb, bbbbbb } ) is True and P ( 5 ) is False.
Thus {< M> is a Turing machine and I L I - 5 and I L I - 16 }
Answer:
Explanation:
Freeware and shareware programs are softwares which are either free of charge or consist of a free version for a certain trial period. These programs pose a threat of habouring malware or viruses which could damage one's computer and important files and programs. Therefore, it is imperative that carefulness is maintained when trying to get these softwares.
Some of the necessary safety conditions that should be taken include;
1) Appropriate research about the software including taking more about the vendors and reviews.
2.) Once, a healthy review has been identified ; the download can begin with the Downloader ensuring that the download is from the recommended site.
3) Prior to installation the software should be scanned with an active anti-virus program to determine if there is possibility that a virus has creeped in.
4.) Some softwares may require that computer anti-virus be turned off during installation, this is not always a good idea as this act leaves the system vulnerable a d badly exposed.
It means multiplying or dividing by 10, 100, 1000, etc
Answer:
Rule based Attack.
Explanation:
As password cracking is a technique used to extract user’s password of application/files without the knowledge of the legitimate user. The attacker can use Rule Based Attack to find the password and to intrude or compromise the network and systems.
This is like a programming language to generate the password. This involves functions to modify, cut, edit and extend the generally used terms by the user.
