Economic informatics, answers to tests OYUI

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Responses to test the Open Institute of Law are in a file word.

Answer format: question -> answer options -> marked by the correct answer.

Answers to tests OYUI latest, guarantee 100% of the results of the test to assess the 5.

The questions in the test:

1. The tables in a relational database:





2. The operator of relational algebra:





3. Scheme of the relational data model:

??S (rel) = \u003cA, B, C, D, Rel, V(s)\u003e

??S (rel) = \u003cA, B, C, D\u003e

??S (rel) = <A, R, Dom, Rel, V (s)>

4. The group functions in SQL:

??Sum, max, min, AVERAGE

??Sum, top, max, min

??Sum, avg, var, count

??Sum, first, have, count

5. The scheme of the network data model:

??S (net) = \u003cA, B, C, WW, Rel, Net, V(s)\u003e

??S (net) = <A, R, WW, Dom, Rel, V (s)>

??S (net) = <A, R, W, Dom, Rel, V (s)>

6. DEFINITIONS AUTHOR: "Information - a violation of the monotony":

??K. Shannon

??N. Wiener


??M. Digo

7. In step "fission" in relational algebra uses the concept:





8. Minimum pieces of information:






9. Elementary Processes in interactive mode:




10. Quality criteria database:

??minimalnoe number of relationships

??maksimalnoe number of attributes

??minimalnoe number of tuples

??minimalnaya redundancy of information


Additional information

Answers to tests are 100% fit for the program with a label, which shows the letter "T" in a blue square (you can verify on the description of the goods and the question in the test you). If you have a new program TEST CLIENT with red check mark on the label, refer questions to the product description, if these questions have in your test, the answers fit.

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