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:
Environmental Monitoring
Explanation:
The space force enhancement function concerned with providing data on meteorological, oceanographic, and space environmental factors that might affect operations in other battle-space dimensions is environmental monitoring.
The correct answer is b.
A Person to person call is a long distance call that you need to tell the operator the name of the person that you wish to speak to. The operator will only connect you when they have the correct person on the phone. There is an extra charge for this service.
The answer & explanation for this question is given in the attachment below.
Answer:
An Embedded System
Explanation:
In computing, an embedded system (computer) refers to a computer with its complete components (processors, memory, IO devices, and peripherals) with a unique and dedicated role in a bigger system (usually a mechanical or electrical system). Embedded systems are found in cars, airplanes, home appliances, petrol dispensers etc. The technology is behind the Internet of Things (IoTs).