Answer:
USE AP CREATE ROLE PaymentEntry
GRANT UPDATE, DELETE ON Invoices TO PaymentEntry
GRANT UPDATE, INSERT ON InvoiceLineItems TO PaymentEntry
EXEC sp_AddRoleMember db_datareader, PaymentEntry
There is no truly unique identifier assigned to a PC. Any appearance of a unique ID is merely an illusion. The closest thing there is to a unique identifier is a MAC address, which is actually assigned to a network adapter (Ethernet port, wireless radio, etc.) and is usually unique but can be faked
Answer: B. Multi-user, multitasking.
Explanation:
Multiuser/Multitasking operating system refers to an operating system that's powerful and supports more than one user at a time, and can also perform more than one task at a time.
The operating system allows many users to use the programs which are running concurrently on a single network server. It is the computer operating system that would be best for a large corporation. An example is UNIX.