1. B
2. B
3. C
i could not get the rest and for the matching, there were not any choices
Answer:
Memory-mapped I/O and port-mapped I/O are two complementary methods of performing input/output between the central processing unit and peripheral devices in a computer. An alternative approach is using dedicated I/O processors, commonly known as channels on mainframe computers, which execute their own instructions.
Answer:
Platform as a Service (PaaS)
Explanation:
In cloud computing, PaaS called platform as a service refers to the provision of a computing platform for developers to create their own custom application. Other two categories of cloud computing are IaaS (Infrastructure as a service) and SaaS (Software as a Service). In the PaaS the servers, cloud storage and network are automatically handled by the platform only the software and application code are to be managed.
Answer:
system itself.
Explanation:
In Online Data Extraction data is extracted directly from the system itself.
The answer is D. it sets up known quantities such as cost and time frame