Visual Basic Answers

How '/' operator is different from '\'?

1 A byte consists of how many bits?
7
8
7 or 8
None of the above

2 Which of the following defines a set of activities that begin at a specific date and end at another specific date in a software development lifecycle?
Program
Procedure
Process
Project

3 In a DBMS, predefined formats for entering data into one or more tables in a database is called which of the following?
Template
Form
View
Query

4 If 1000 bytes make 1KB, How many bytes are in 1 GB?
10E06
10E07
10E08
10E09

5 Which of the following is a major data collection method used in organizations?
Direct observation
Interviews
Questionnaires
All of the above

6 A comprehensive list of the data in the records of one or more data tables in a database?
Query
Report
Procedure
Query table

7 Which of the following is used to describe the information one is looking for in a data store?
Search term
Search language
Index
Key

8 When someone is looking for the name of a particular person, "Madu Okey", in a telephone directory, which data retrieval type is in use?
Subject retrieval
Topical search
Known-item
Key search

9 Which of the following refers to the process of decomposing data into separate data sets?
Data aggreggation
Data disaggregation
Data analysis
Data summarization

10 The process of reducing voluminous data into less voluminous data is called which of the following?
Data aggreggation
Data disaggregation
Data analysis
Data summarization

11 The process of investigating and identifying important attributes of a particular data set is called which of the following?
Data aggreggation
Data disaggregation
Data analysis
Data summarization

12 The process of planning or designing an information system is often referred to as which of the following?
SDLC
SLDC
SCLD
SLDC

13 The binary 101101 is equivalent to which of the following base 10 numbers?
43
46
45
55

14 77.44E04 is equivalent to which of the following?
774400
7744000
77440
77440000

15 Which of the following is a pre-defined way of displaying some or all the records and fields in a data table?
View
Model
Schema
Table

16 Which of the following is a statement that instructs a DBMS to find and display data from a database all data that meet some criteria?
Instruction
Query
Procedure
Function

17 The final stage of the software development lifecycle is which of the following?
Implementation of the new system
Operating the new system
Monitoring the new system
Analsis of the old system

18 When someone is searching for all economics books in the library catalogue but without having any specific book in mind, which data retrieval type is in use?
Subject search
Known-item
Key search
Query search

19 Which stage of the software development lifecycle is aimed at determining the kind of information that will be required by system users?
Feasibility study
user requirements analysis
design of new system
analysis of the old system

20 The first stage of the software development lifecycle is which of the following?
Feasibility study
user requirements analysis
design of new system
analysis of the old system

Assume a computer store gives a 5% discount for all students of purchases under $50, 10% discount to students whose total purchase is between $50 and $99, and 15% on purchases of $100 or more. Write a pseudocode algorithm that will print the amount of money owed. Use structured pseudocode as demonstrated in the lectures for code, ensure all variables are declared, prompt the user for the appropriate input, and display a meaningful output message. Make sure that the total purchase is greater than 0.

write a VB program that reads 50 grades (each grade should be between 0 and 100), and then produces the frequency of each grade. The result should be stored in an array. You should not use any type of IF statements or SELECT CASE statement.
Example: Suppose the input grades are 1,4,3,4,1,4,2 … The output should be as follows:

grade frequency
0 0
1 2
2 1
3 1
4 3
...
100 0

write a VB program that reads 50 grades (each grade should be between 0 and 100), and then produces the frequency of each grade. The result should be stored in an array. You should not use any type of IF statements or SELECT CASE statement.
Example: Suppose the input grades are 1,4,3,4,1,4,2 … The output should be as follows:

grade frequency
0 0
1 2
2 1
3 1
4 3
...
100 0