Answer: Database design is the model created of data/information for any particular organization .the relation between the information and which data is to be stored is the most important factor for designing .These parameters are decided by the designer of the database.
After the decision of the designed the data is invoked in the database .The data representation in the theoretical manner is known as ontology.The classification and relation defining is the purpose of the database design.
Answer: It’s B The presentation will start from the beginning
Explanation: I took the test
Answer:
Excel file formats
Format Extension
Excel Workbook .xlsx
Excel Macro-Enabled Workbook (code) .xlsm
Excel Binary Workbook .xlsb
Template .xltx
Answer:
3 select inputs are required to select a specific input between 5 inputs.
Explanation:
Multiplexer is used to select the inputs from different inputs to a single output. There are many types of multiplexers for different number of inputs selection. 1. 2x1 is the type of multiplexer where 2 inputs and 1 output. This is used to select between these inputs. There is one more pin to select the input between these two inputs that is called <em>select </em>input.
2. Another type is 4x1 multiplexer. There are 4 inputs and one output. In this type of multiplexer 2 select pins are used for selection of input bits between these 4 inputs.
For more than 4 inputs and less than 8 inputs, 8x1 multiplexer is used. this multiplexer uses three inputs for selection purpose.
