Answer:
a. True
Explanation:
The three tiers in a three-tier architecture are:
Presentation Tier: Occupies the top level and displays information related to services available on a website. This tier communicates with other tiers by sending results to the browser and other tiers in the network.
Middle Tier: Also called the application tier, logic tier, business logic or logic tier, this tier is pulled from the presentation tier. It controls application functionality by performing detailed processing.
Data Tier: Houses database servers where information is stored and retrieved. Data in this tier is kept independent of application servers or business logic.
Answer:
Correct answer is option B (The reason for using supertypes is to minimize the number of nulls and to minimize the likelihood of redundant relationships)
Explanation:
Entity supertype
A entity supertype is a generic entity type which is related with one or more subtypes.
Use of entity supertype:
The reason for using entity supertype is to reduce redundant relationships and it is also used to minimize the number of nulls.
Answer: hello the options related to your question is missing attached below is the complete question and options
answer : Read the status register ( A )
Explanation:
To determine if the device is busy or ready to accept a new command the line of action is to write a code that will Read the status register. A status register is a hardware register which contains the information about the processor of the device ( i.e. whether the processor is busy or ready )
Answer:
You have to do that on your computer not someone elses....
Explanation: you have to do it
