I would do top to down approach start from the top and work your way down to the bottom.
Answer:
World Wide Web (WWW)
Explanation:
Popularly referred to as the Web is an information system that comprises of many interconnected web resources and documents. These documents and web resources possess a certain URL (Uniform Resources Locators) such as https://www.brainly.com/ which makes them accessible over the internet.
The <em>HTTP or Hypertext Transfer Protocol</em> is a channel for transferring the resources of the World wide web among users.
In 1989, the World Wide Web was invented by Tim Berners-Lee. He developed the first web browser in 1990.
The World Wide Web has played a fundamental role in the advancement of the information age as it is greatly used by different people around the world to communicate efficiently.
Answer: Explanation:
Salting alters the hash of a password so that it does not physically match the hash of another password. A salt and password are concatenated and processed with a cryptographic hash function. Salt prevents use of rainbow and hash tables to attacking and cracking passwords.
For example, a user has the password, "password000" and is put through a SHA1 hash. In the password database, all of the users with the password "password000" will have the exact same hash, because of the nature of hashing functions. So, if an attacker breaches the database and brute force the password of the user mentioned above, he could look for all the hashes that match the original user's and would know their passwords are also "password000".
By applying a salt, the password hashes would no longer be identical to one another, even though the actual password is still the same. This requires the attacker to go in and attempt to brute force the second password (which has a different salt), even though it may be the same as the first.
In conclusion, it prevents an attacker from uncovering one password and subsequently uncovering multiple others.
Answer:
Kasiski’s method for determining 't' works for Vigenère cipher as well. The only difference is therefore in the second stage of the attack. In the second stage, one needs to build a frequency table for each of the 't' keys, and carry out an attack like on the mono-alphabetic cipher. Given a long enough plaintext, this will work successfully.
Explanation:
Kasiski method is a method of attacking polyalphabetic substitution ciphers such as Vigenère cipher. It is also called Kasiski test or Kasiski examination.
The method involve finding the length of the keyword and then dividing the message into that many simple substitution cryptograms. Frequency analysis could then be used to solve the resulting simple substitution.
Answer:
The answer is "Option A".
Explanation:
In the given question the option A is correct, because the cost of defects increases the over all cost of the project. In the SDLC there are 7 phases in which the testing stage is used to improves the accessibility for all stake holders in the development process of project planning, and other options are not correct, because defects increases the cost not Decreases.
