5.Match the following : A- Maintenance control: B- Maintenance prediction: C- Maintenance process: 1-Cost of planning and scheduling hardware preventive maintenance, and software maintenance and upgrades, managing the hardware and software baselines, and providing response for hardware corrective maintenance. 2Predicting the number of change requires a system understanding and the relationship between the system and external environment. 3- It is triggered by a set of change requests from system users, management or customers.
Options: (A)The ability to store a large amount of data in a structured format, easy update, sort, query, production of reports (B) Easy editing, spell check, perform calculations, library of mathematical functions, replication (C) The ability to rotate images, copy and paste, fill scale (D) None of above 8
Options: a. Do not enter a value in the foreign key field of a child table if that value does not exist in the primary key of the parent table
b. Do not enter a value in the primary key field of child table if that value does not exist in the primary key of the parent table
c. Do not enter a value in the foreign key field of a parent table if that value does not exist in the primary key of the child table
d. All of above
. A real time operating system is most likely to be used for which of the following task?
Options: a. Controlling access to a shared printer in a network
b. Ensuring that system clock works correctly on server
c. Managing the access to system files in a laptop computers
d. Controlling the fuel injection system of an automobile engines