. . . . . . . . is a function of the particular enterprise and application in an on-premises deployment.

Vendor lock
Vendor lock-in
Vendor lock-ins
None of the mentioned

The correct answer is: Vendor lock-in.

Vendor lock-in is a situation in which a customer is unable to switch from one supplier to another without incurring significant costs or inconvenience. This can occur when a supplier has a dominant position in the market, or when the customer has invested heavily in the supplier’s products or services.

In the context of an on-premises deployment, vendor lock-in can occur when a customer is using a proprietary software application that is only available from a single vendor. If the customer wants to switch to a different vendor, they may have to re-write their application or pay the vendor a significant fee to port it to their platform.

Vendor lock-in can also occur when a customer is using a hardware platform that is only supported by a single vendor. If the customer wants to switch to a different vendor, they may have to replace their entire hardware infrastructure.

Vendor lock-in can be a significant barrier to competition, and it can make it difficult for customers to switch to a better solution. It is important to be aware of the potential for vendor lock-in when making any technology decisions.

A. Vendor lock is not a correct answer because it is not a commonly used term.
B. Vendor lock-in is a correct answer because it is a commonly used term that describes the situation in which a customer is unable to switch from one supplier to another without incurring significant costs or inconvenience.
C. Vendor lock-ins is not a correct answer because it is not a commonly used term.
D. None of the mentioned is not a correct answer because vendor lock-in is a real and significant issue that can affect customers.