Modern fax machines use senors to transmit text.
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Answer:
Partial and disjoint
Explanation:
Since there is overlapping in relationship of HAIR_STYLIST and MANAGER it can't be tree structure.
A MANAGER can or can't be HAIR_STYLIST. In order for the relationship to be multiple inhertiance am entity in sub-class has to be union of all subclasses
In single inheritance, a sub-class has to be a union of a single super class.
In partial and disjoint, some entity in super class may or may not be related to a sub-class.
Information communication technology (ICT) is a crucial tool to support effective communication and decision-making under complex and uncertain environments of disasters by enhancing cognitive capacity of emergency managers. With the continuous influence and evolution of communication technologies, information sharing and decision-making has drastically changed and affects each phase of emergency management. Researchers continue to investigate the relationship of human involvement for spreading public safety information through ICT. With each disaster holding diverse characteristics influencing prediction, detection, and specific activities required for prevention, mitigation, response and recovery, the need for interoperable and dependable communication infrastructure, a common operating picture, and supportive regulations, policies, and practice greatly increases. Although a national public safety communication system was proposed, there are implementation challenges between local, state, and federal agencies. This paper briefly examines the evolution of the use of ICT for public safety along with current trends, benefits and challenges, and future needs.
Answer: E) Input validation
C) Data validation
Explanation:
- Input validation is the process of analyzing and testing input's quality and correctness that are being processed at further level in information system.It help in eliminating any type of improper or informal input data from getting supplied to user or program in a system.
- Input validation is also known as data validation.As the input that is being tested and validated is form of data that is going through cleansing task to remove useless data.
- According to the question, data and input are being inspected to extract the validity and correctness of it before sending it for computation .Thus , both data and input validation is happening in this case.
- Other options are incorrect because testing is examining the data.Correction data and input is the step for rectifying the mistakes in data or input.
- Thus, the correct option is option(C) and (E).
In the context of the database design process, the conceptual design step that defines the fragmentation and allocation strategy is the database design flashcards. The distributed data base design problem is presented that involve a development of a global model ; a fragmentation and a data allocation.
