Answer:
A. Acceptable use policies
Explanation:
These specific actions that the user may perform are all described in the acceptable use policy. The company usually requires that the user read and sign this policy before being granted a network ID into the system itself. By signing this agreement the individual user agrees to perform ONLY the actions listed in the agreement and nothing else and are restricted from unauthorized areas.
A, because if not, there is nothing to say it exsists
Answer:
They are the cardinality ratio and participation constraints.
Explanation:
The Cardinality Ratio: This is for the binary relationship that specifies the max number of instances of relationships in which an entry can take part in. As an example, the Student Of binary relationship form, School: Student, the cardinality ratio of this is 1: N. and that means each of the schools can be mapped to any number of students, however, one student can be mapped to only one school. And various possible cardinality ratios for various types of binary relationships can be 1: N, N:1, 1:1, and M: N.
Participation constraint: This stipulates that an entity being be contingent upon another entity through relationship form. And it stipulates the least figure of instances of relationship which each of the entity can indulge in, and is often termed as least cardinality constraint. And we have participation types: partial and total.
The characteristics that the new operating system to be used on mobile phones should have include the following:
- Compatibility with different hardware
- Absence of bugs
- Compatibility simply means how two things work together. In this case, the new operating system to be used on the mobile phones should be compatible with other phones or computer systems. It should be connected easily.
- Also, there should be an absence of bugs. Bugs simply mean the error or the fault that can be found in a computer system. When there is a bug, it brings about unexpected results or incorrect resources.
In conclusion, the operating system should be compatible with other hardware and there should be an absence of bugs.
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