1. The computer system includes ...
the hardware subsystem, the software subsystem, the network subsystem
2. The software programs system includes ...
operating system software, application software
3. Which of the following is an operating system?
MS Windows
4. Which of the following is an Spreedsheets?
MS Excel
5. Which of the following is an Word Proccessor?
MS Word
6. Which of the following is an Internet Browser?
Internet Explorer
7. The compilers allows …
translate a whole program once and execute it
8. The interpreters allows …
translate and execute one instruction at a time
9. Security -
By means of password and similar other techniques, it prevents unauthorized access to programs and data.
10. Coordination between other software and users –
Coordination and assignment of compilers, interpreters, assemblers and other software to the various users of the computer systems.
11. Error detecting aids −
Production of dumps, traces, error messages, and other debugging and error detecting aids.
12. Job accounting −
Keeping track of time and resources used by various jobs and users.
13. Control over system performance −
Recording delays between request for a service and response from the system.
14. MS Word. Option 2 corresponds to the document viewing mode ...
Print Layout
15. MS Word. Option 1 corresponds to the document viewing mode ...
Read Mode
16. MS Word. Option 3 corresponds to the document viewing mode ...
Web Layout
17.
MS
Word. Marker
…
Moves both the first-line indent and hanging indent markers at the same time
18.
MS
Word. Marker
…
Adjusts the first-line indent
19.
MS
Word. Marker
…
Adjusts the hanging indent
20.
MS
Word. The
marker of tab stops
...
Right-aligns the text at the tab stop
21.
MS
Word.
The
marker of tab stops
...
Left-aligns the text at the tab stop
22.
MS Word. The
marker of tab stops
...
Aligns decimal numbers using the decimal point
23.
MS
Word. The
marker of tab stops
...
Centers the text around the tab stop
24.
MS
Word. The
marker of tab stops
...
Draws a vertical line on the document
25. Excel.What is the order in an arithmetic expression is correct?
1.Exponentiation 2.Actions in parentheses 3.The calculation of the values of functions
4. Addition and subtraction in the order 5. Multiplication and division in the order
Answer: 2, 3, 1, 5, 4
26. MS Excel.What is the next kind of error? “#REF!”
A cell reference is not valid
27. MS Excel.What is the next kind of error? “######”
The cell simply isn’t big enough to display the result
28. MS Excel.What is the next kind of error? “#VALUE!”
The formula uses the wrong type of operand or argument
29. MS Excel.What is the next kind of error? “NAME?”
There is a name in the formula that Excel doesn’t recognize
30. MS Excel.What is the next kind of error? “#DIV/0”
An attempt to divide by zero
31. Convertation of numbers (integers, fractional) from one number system to another
32. Operations with binary numbers (addition, multiplication)
33. MS Excel. Determine a modified form of the formula after copying in cells D4,C9
Answer: D4: =E7+I3+$D3+E$3 C9: =D12+H8+$D8+D$3
34. MS Excel. Determine the value of the following expression
=SQRT(ABS(SUM(А2:С3)-2))
Answer: 3
35.
MS
EXCEL.
Which expression corresponds to the following mathematical
expression?
Answer: =SQRT(ABS(1+SIN(A1)^2+3.7))/EXP(2*A1)
36. MS Excel. Determine the value of the following logical expression (С4=-9, К7=8)
=OR(С4>К7;NOT(OR(К7<>C4/2;C4<5)))
Answer: FALSE
37. MS Excel. Which expression is written correctly?
Answer:
=IF(A1<0;A1+8;IF(AND(A1>=0;A1<=1);3*SIN(A1);A1^2/4))
38. Determine the results of sorting by fields
Club-Section-Age
Answer: 2,3,4,7,1,8,5,10,9,6
39. Determine the result of filtering by condition
Answer: 5,10
40. What is Data analysis?
Data analysis is a practice in which raw data is ordered and organized so that useful information can be extracted from it. It is the process of evaluating data using analytical and logical reasoning to examine each component of the data provided;
41. What is Data mining?
Using a database to uncover data patterns and relationships and infer rules to predict future results. Transforming data into actionable information;
42. Data mining. Which of the following is a anomaly detection tools?
Descriptive statistics;
Outlier analysis;
Data visualization;
Correlation;
Peer comparison;
Pattern analysis and trending;
Geographic and map analysis;
43. Data mining. Which of the following relates to predictive models?
Decision tree analysis;
Predictive modeling;
Cluster analysis;
44. Data Base System. What is a Data Base?
A database is an organized collection of data. It is the collection of schemas, tables, queries, reports, views, and other objects;
45. Data Base System. What is a Data Base System?
A database management system (DBMS) is a computer software application that interacts with the user, other applications, and the database itself to capture and analyze data;
46. Data Base System.What is a Database Model?
A database model is a type of data model that determines the logical structure of a database and fundamentally determines in which manner data can be stored, organized, and manipulated;
47. Data Base System. What logical data models for databases exist?
Hierarchical, network, relational, object models;
48. Data Base System. “The data is organized into a tree-like structure. The structure allows repeating information using parent/child relationships: each parent can have many children but each child only has one parent.” Which data model is described?
Hierarchical model;
49. Data Base System. “The data is stored in the form of objects, which are structures called classes that display the data within. The fields are instances of these classes.” Which data model is described?
Object model;
50. Data Base System. “The data is stored in two-dimensional tables (rows and columns). The data is manipulated based on the relational theory of mathematics.” Which data model is described?
Relational model;
51. Data Base System. “This model is a variation on the hierarchical model – allowing each record to have multiple parent and child records.” Which data model is described?
Network model;
52. Data Base System. What is a Database normalization?
Database normalization is the process of organizing the columns (attributes) and tables (relations) of a relational database to reduce data redundancy and improve data integrity;
53. Data Base System. What is the primary key?
One or more fields that uniquely identify a record in the table;
54. MS Access. In which mode can I change the field type?