A network designed for is one that delivers consistent reliable performance 24hours a day a. security
b. Durability
c. manageability
d. availability no​

d. availability

Explanation:

Availability can be defined as the quality of a thing, system, business, service or person to be available at all times (24 hours a day) to the group of people that uses it.

This ultimately implies that, availability is a state of being consistently accessible to the end users on daily basis without any downtime or failure.

Hence, a network designed for availability is one that delivers consistent reliable performance 24 hours a day to the end users.

it is much more convenient for the consumer to order something online, rather than going to a store. it saves them time and money for them, especially if that item is not accessed easily.