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2 years ago

Suppose that you have the following definitions:

1 answer:

6 0

Suppose that you have the following definitions:struct time Type struct tourTypen the variable destination of type your type are tourType input(){cout<<"Enter the city, distance and time in hr and min"<>destination.city name;

<h3>What is C++ statements?</h3>

Expression statements. These statements examine an expression for its aspect outcomes or for its go-back value. Null statements. These statements may be supplied in which a declaration is needed with the aid of using the C++ syntax however in which no motion is to be taken.

#include
#include
the use of namespace std;
struct timeType
;
struct tourType
;
tourType destination;
tourType input(){
cout<<"Enter the city, distance and time in hr and min"<>destination.cityName;
cin>>destination.distance;
cin>>destination.travelTime.hr;
cin>>destination.travelTime.min;
go back destination;
}
void display()cityName;
d.distance = t->distance;
d.travelTime.hr = t->travelTime.hr;
d.travelTime.min = t->travelTime.min;">
int main().

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A label control's __________ property determines whether the control automatically sizes to fit its current contents.

Kazeer [188]

Answer:

Option d (Auto Size) is the correct answer.

Explanation:

In a C# programming language, when a user needs to create a Windows Forms Label, then he needs to specify the property of label that how the label will look like and where the label fits and what is the size of that label. Following are the property which has a different meaning and a user need to specify when he creates a label--

Fit states that the label to fix in the size.
Text align states that the item of the toolbar is fixed in the center.
The Middle center states that the item is fixed in the middle.
Auto Size helps that the size of the control can be automatically resized.

The above question asked about that property which is used to automatically resize the control. So the answer is Auto size which is described above. Hence Option d is the correct answer while the other is not because--

Option a state about 'Fit' property which is used to fix the label size.
Option b states about 'Text align' property which is used to fix items of the toolbar in the center.
Option c states about 'Middle center' property which is used to fix the item in the middle.

4 0

3 years ago

The requester of sensitive information should not receive access just because of his or her clearance, position, or rank. The re

JulsSmile [24]

Answer:

Need to know

Explanation:

Need to know is a policy or predetermined criterion by which the requester of an information is granted access to the requested information only when a valid need is establish and not just because of his or her clearance, position, or rank.

7 0

3 years ago

[1] Please find all the candidate keys and the primary key (or composite primary key) Candidate Key: _______________________ Pri

AVprozaik [17]

Answer:

Check the explanation

Explanation:

1. The atomic attributes can't be a primary key because the values in the respective attributes should be unique.

So, the size of the primary key should be more than one.

In order to find the candidate key, let the functional dependencies be obtained.

The functional dependencies are :

Emp_ID -> Name, DeptID, Marketing, Salary

Name -> Emp_ID

DeptID -> Emp_ID

Marketing -> Emp_ID

Course_ID -> Course Name

Course_Name -> Course_ID

Date_Completed -> Course_Name

Closure of attribute { Emp_ID, Date_Completed } is { Emp_ID, Date_Completed , Name, DeptID, Marketing, Salary, Course_Name, Course_ID}

Closure of attribute { Name , Date_Completed } is { Name, Date_Completed , Emp_ID , DeptID, Marketing, Salary, Course_Name, Course_ID}

Closure of attribute { DeptID, Date_Completed } is { DeptID, Date_Completed , Emp_ID,, Name, , Marketing, Salary, Course_Name, Course_ID}

Closure of attribute { Marketing, Date_Completed } is { Marketing, Date_Completed , Emp_ID,, Name, DeptID , Salary, Course_Name, Course_ID}.

So, the candidate keys are :

{ Emp_ID, Date_Completed }

{ Name , Date_Completed }

{ DeptID, Date_Completed }

{ Marketing, Date_Completed }

Only one candidate key can be a primary key.

So, the primary key chosen be { Emp_ID, Date_Completed }..

The functional dependencies are :

Emp_ID -> Name, DeptID, Marketing, Salary

Name -> Emp_ID

DeptID -> Emp_ID

Marketing -> Emp_ID

Course_ID -> Course Name

Course_Name -> Course_ID

Date_Completed -> Course_Name

For a relation to be in 2NF, there should be no partial dependencies in the set of functional dependencies.

The first F.D. is

Emp_ID -> Name, DeptID, Marketing, Salary

Here, Emp_ID -> Salary ( decomposition rule ). So, a prime key determining a non-prime key is a partial dependency.

So, a separate table should be made for Emp_ID -> Salary.

The tables are R1(Emp_ID, Name, DeptID, Marketing, Course_ID, Course_Name, Date_Completed)

and R2( Emp_ID , Salary)

The following dependencies violate partial dependency as a prime attribute -> prime attribute :

Name -> Emp_ID

DeptID -> Emp_ID

Marketing -> Emp_ID

The following dependencies violate partial dependency as a non-prime attribute -> non-prime attribute :

Course_ID -> Course Name

Course_Name -> Course_ID

So, no separate tables should be made.

The functional dependency Date_Completed -> Course_Name has a partial dependency as a prime attribute determines a non-prime attribute.

So, a separate table is made.

The final relational schemas that follows 2NF are :

R1(Emp_ID, Name, DeptID, Marketing, Course_ID, Course_Name, Date_Completed)

R2( Emp_ID , Salary)

R3 (Date_Completed, Course_Name, Course_ID)

For a relation to be in 3NF, the functional dependencies should not have any transitive dependencies.

The functional dependencies in R1(Emp_ID, Name, DeptID, Marketing, Date_Completed) is :

Emp_ID -> Name, DeptID, Marketing

This violates the transitive property. So, no table is created.

The functional dependencies in R2 ( Emp_ID , Salary) is :

Emp_ID -> Salary

The functional dependencies in R3 (Date_Completed, Course_Name, Course_ID) are :

Date_Completed -> Course_Name

Course_Name -> Course_ID

Here there is a transitive dependency as a non- prime attribute ( Course_Name ) is determining a non-attribute ( Course_ID ).

So, a separate table is made with the concerned attributes.

The relational schemas which support 3NF re :

R1(Emp_ID, Name, DeptID, Course_ID, Marketing, Date_Completed) with candidate key as Emp_ID.

R2 ( Emp_ID , Salary) with candidate key Emp_ID.

R3 (Date_Completed, Course_Name ) with candidate key Date_Completed.

R4 ( Course_Name, Course_ID ). with candidate keys Course_Name and Course_ID.

6 0

3 years ago

What were the important developments that occurred in photography that facilitated the creation of motion pictures? Two critical

8_murik_8 [283]

Answer:

"A moving picture is an illusion that makes a still photo seem to move. The basic principal behind motion pictures is the fast transition between one picture to the next, almost creating a seamless transition. A flip-book is a good example of this. Another example would be film used for old movies. The film contains negatives of an image which when light is shined through creates a "shadow" of the image. If you quickly transition the film from one image to the next you end up a motion picture."

Explanation:

7 0

3 years ago

The area that holds all the startup instructions the computer needs to start is the

Zigmanuir [339]

The area that holds all the startup instructions the computer needs to start is the ROM, or read-only memory.

8 0

3 years ago