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3 years ago

Which of the following option is correct about HCatalog?

Computers and Technology

1 answer:

adell [148]3 years ago

8 0

Answer:

Option (3) is the correct answer of this question.

Explanation:

HCatalog makes available Hive metadata to users of other Hadoop applications, such as Pig, MapReduce and Hive. it offers interfaces for MapReduce and Pig so that users can read data from and write data to the Hive warehouse.
This means users don't have to care about where or in what format their data is stored. So we know this way that Hcatalog makes sure our data is secure.
Others option does not belong to Hcatalog so these options are incorrect .

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Search engine ranking evaluates the variables that search engines use to determine where a URL appears on the list of search res

VARVARA [1.3K]

Answer:

True.

Explanation:

Search engines are evaluated on the basis of the variables which are used by the search engines to determine where the URL appears in the list of the search results.There are certain algorithms are also implemented using these variables like panda algorithm.So we conclude that the answer is True.

3 0

3 years ago

From the standpoint of the governing bodies of .com, why is it important that owners of individual domains maintain authoritativ

mixer [17]

Answer:

Explanation:

A subdomain is really important on the internet, we can categorize our blog, e-commerce or simple informative website, for example, if we want to have a blog and e.commerce of the same topic, we can have a subdomain for each website, if we separate our website, and we administrate our content is a good signal for SEO, we could have more promotion in search engine.

4 0

3 years ago

Write a method so that the main() code below can be replaced by the simpler code that calls method mphAndMinutesToMiles(). Origi

defon

ANSWER

The JAVA program after simplification is as below.

import java.util.Scanner;

public class CalcMiles {

// variables declaration

static double milesPerHour;

static double minutesTraveled;

static double hoursTraveled;

static double milesTraveled;

// method declared static

public static void mphAndMinutesToMiles(double speed, double mins)

{

// computations to calculate distance travelled

hoursTraveled = mins / 60.0;

milesTraveled = hoursTraveled * speed;

// result displayed on the screen

System.out.println("Miles: " + milesTraveled);

}

// Scanner object created inside main()

// user input taken inside main()

public static void main(String [] args)

{

Scanner scnr = new Scanner(System.in);

System.out.println("Enter miles travelled per hour ");

milesPerHour = scnr.nextDouble();

System.out.println("Enter minutes required to travel ");

minutesTraveled = scnr.nextDouble();

mphAndMinutesToMiles(milesPerHour, minutesTraveled);

}

OUTPUT

Enter miles travelled per hour

2.3

Enter minutes required to travel

1234

Miles: 47.30333333333333

EXPLANATION

The program is simplified as explained below.

1. User input is taken using the object of Scanner class.

2. This object of Scanner class can only be created inside main() method hence, user input can only be taken inside main().

3. The code to calculate the result is separated in another method, mphAndMinutesToMiles(). This method is declared with return type void since no value is returned.

4. After user input is taken in main() for miles travelled per hour and minutes required to travel, these values are passed as parameters to the mphAndMinutesToMiles() method.

5. These parameters are used in calculation part. The total miles travelled in total hours (obtained from minutes), is calculated. The code to display the result is added to this method.

6. Inside the main method, only the code to create Scanner object, code to take user input for two variables and code to call the mphAndMinutesToMiles() is included.

7. The variables are declared as static and declared at class level.

8. No variable is declared inside any of the two methods.

5 0

3 years ago

Read 2 more answers

Given half a chance other people at work will take advantage of you

Damm [24]

have self-control and if you have a problem dont be afraid to speak your mind, show other people you mean buisness, but be polite to aviod starting more problems

3 0

3 years ago

Program 7 - Circle You write ALL the code, then run it - Produce the correct output. Turn in code and screen print of successful

fgiga [73]

Answer:

Here is the Circle class:

public class Circle { // class definition

private int radius; // private data member of type int of class Circle named radius that stores the value of radius

public Circle(int r) { // parameterized constructor of class Circle that takes radius as argument

radius = r; } // sets value of radius as r

public int getRadius() { // accessor method to get the value of radius

return radius; } // returns the current value of radius

public int Diameter() { // method to compute diameter of a circle

return radius * 2; } // multiply radius value by 2 to compute diameter of Circle

public double Area() { // method to compute area of a circle

return Math.PI * Math.pow(radius, 2); } //the formula of area is

π x radius² where value of π is get using Math.PI

public double Circumference() { // // method to compute circumference of a circle

return 2* Math.PI * radius; } } //the formula of circumference is

2 x π x radius where value of π is get using Math.PI

Explanation:

Here is the Main class:

import java.util.Scanner; //to accept input from user

public class Main { //definition of Main class

public static void main(String[] args) { //start of main method

Scanner scanner = new Scanner (System.in); //creates Scanner object to take input from user

System.out.println("Enter radius: "); //prompts user to enter radius

int r = scanner.nextInt(); //reads the value of radius from user

Circle c = new Circle(r); // calls Constructor of Circle passing r as argument to it using the object c of class Circle

if(c.getRadius()<=0){ //calls getRadius method to get current value of radius using objec and checks if this value (input value of r ) is less than or equal to 0

System.out.println("Error!"); } //when above if condition evaluates to true then print this Error! message

else { //if the value of radius is greater than 0

System.out.println("the radius of this Circle is: " +c.getRadius()); //calls getRadius method to return current value of r (input value by user)

System.out.println("the diameter of this Circle is: " + c.Diameter()); //calls Diameter method to compute the diameter of Circle and display the result on output screen

System.out.printf("the circumference of this Circle is: %.2f", c.Circumference()); //calls Circumference method to compute the Circumference of Circle and display the result on output screen

System.out.println(); //prints a line

System.out.printf("the Area of this Circle is: %.2f", c.Area()); } } }

//calls Area method to compute the Area of Circle and display the result on output screen

The program and its output is attached.

7 0

3 years ago