Need below multiple questions correct answer only no need explanation: For each of the following situations in Questions 1 through 4, state whether the data stored is: "in scope" for PCI compliance "out of scope" for PCI compliance not permitted Question 1 Merchant stores customer PAN encrypted with key known only to the merchant. in scope out of scope not permitted Question 2 Merchant stores salted hash of customer PAN. in scope out of scope not permitted Question 3 Merchant stores token generated as random 16-digit number. in scope out of scope not permitted Question 4 Merchant stores customer CVV2 encrypted with key known only to the merchant. in scope out of scope not permitted Question 5 Merchant stores token generated using encryption key known only to the merchant. in scope out of scope not permitted

Q: What happens if your database does not enforce referential integrity? When it comes to making…

A: Given: What happens if your database's referential integrity is not enforced? What types of mistakes…

Q: What happens if the referential integrity of your database is lost? What kind of mistakes are…

A: Referential integrity is a concept in database design that refers to the consistency of…

Q: Under what conditions must a foreign key not be null?

A: Answer: So basically a foreign key is used for identifying a row of another table uniquely.…

Q: There would be catastrophic implications if the referential integrity of a database was compromised.…

A: Referential consistency: It is the phrase used to explain how tables relate to one another. A…

Q: It's possible that the referential integrity of a database may be compromised, which would have…

A: Referential consistency: It is the phrase used to explain how tables relate to one another. A…

Q: The consequences of a breach in the referential integrity of a database might be severe. If you were…

A: Referential integrity:  Referential integrity describes the link between two tables. Each table in a…

Q: Database systems employ strict two-phase locking. Why is this protocol popular?

A: In rigorous 2-phasing protection methods, locks are acquired and discharged in two distinct periods.…

Hash Table

A hash table also called a hash map, is a data structure that maps key-value pairs. The hash table can be used in complex systems to provide fast access and compact storage. A hash table is a structure that stores data in an abstract data type kind of associative array. It keeps data in an array format, with a distinct index value for every data value. If the index of the required data is known, then the data can be accessed very easily.