Instructions: Attempt any five (5) questions a). Explain what cardinality ratio specify (8 marks)
Q1
b). Discuss what data model means and list the types of data model used in database. (12 marks)
20
Marks

Dean wants a quick way to look up staff members by their staff id. in cell q3, nest the existing vlookup function in an iferror function. if the vlookup function returns an error result, the text “invalid staff id” should be displayed by the formula. (hint: you can test that this formula is working by changing the value in cell q2 to 0, but remember to set the value of cell q2 back to 1036 when the testing is complete.)

Which operating system is a version of linux?

The more powerful, 60 volt cables and the main power shut-off on an hev are both colored orange.