Tag: programming languages

Questions Related to programming languages

While using CLASS and BY Statements in PROC MEANS one should keep in mind :
technology programming languages

  1. Use the CLASS Statement when number of observation >10000

  2. Use the By Statement when number of observation <1000

  3. Using the BY Statement requires that the input data set be sorted by the values of the classification variables

  4. Using the CLASS Statement requires that the input data set be sorted by the values of the classification variables

Show answer
Correct Option: C

Which of the following code gives the output : The MEANS Procedure Analysis Variable : totrev Mean Sum 753.82 12349156.38
technology programming languages

  1. PROC MEANS DATA=ORGANIZATION MEAN SUM MAXDEC=2; VAR TOTREV; run;

  2. PROC MEANS DATA=ORGANIZATION MAXDEC=2; VAR TOTREV; run;

  3. PROC MEANS DATA=ORGANIZATION MEAN SUM MAXDEC=2; run;

  4. PROC MEANS DATA=ORGANIZATION SUM ; VAR TOTREV; run;

Show answer
Correct Option: A

There are 45 records having the variable REGION value as missing.How to display the SUM and MEAN of TOTREV for these records?
technology programming languages

  1. PROC MEANS DATA= ORGANIZATION SUM MEAN ; CLASS REGION; VAR TOTREV / MISSING; run;

  2. PROC MEANS DATA= ORGANIZATION SUM MEAN MAXDEC=0 NMISS; CLASS REGION; VAR TOTREV; run;

  3. PROC MEANS DATA= ORGANIZATION SUM MEAN MAXDEC=0 if not MISSING; CLASS REGION; VAR TOTREV; run;

  4. PROC MEANS DATA= ORGANIZATION SUM MEAN MAXDEC=0 MISSING; CLASS REGION; VAR TOTREV; run;

Show answer
Correct Option: D

How to obtain only the MEAN and SUM of TOTREV classified by REGION in the ORGANIZATION data set.
technology programming languages

  1. PROC MEANS DATA= ORGANIZATION ; CLASS REGION; VAR TOTREV ; run;

  2. PROC MEANS DATA= ORGANIZATION SUM MEAN MAXDEC=0 ; CLASS REGION; VAR TOTREV ; run;

  3. PROC MEANS DATA= ORGANIZATION SUM MEAN MAXDEC=0 ; BY REGION; CLASS TOTREV ; run;

  4. PROC MEANS DATA= ORGANIZATION SUM MEAN MAXDEC=0 ; CLASS North_Region; VAR TOTREV ; run;

Show answer
Correct Option: B

What does the following code do? PROC MEANS DATA= ORGANIZATION(WHERE=(REGION IN('WESTERN','SOUTHERN') and SUBSTR(RATE_SCHEDULE,1,2) = 'E1')) MAXDEC = 0 MEAN SUM NONOBS; VAR TOTREV; CLASS REGION RATE_SCHEDULE; run;
technology programming languages

  1. Calculate the mean total revenue classified by REGION and RATE_SCHEDULE, but only for the WESTERN and SOUTHERN REGIONS, and only for those two regions whose values of RATE_SCHEDULE start with the string “E1.”

  2. Displays the number of observations(records), mean and total revenue classified by REGION and RATE_SCHEDULE, for the WESTERN and SOUTHERN REGIONS, and only for those two regions whose values of RATE_SCHEDULE start with the string “E1.”

  3. Calculate the mean total revenue classified by REGION and RATE_SCHEDULE, for all the regions except the WESTERN and SOUTHERN REGIONS, and only for those two regions whose values of RATE_SCHEDULE start with the string “E1.”

  4. Displays the Rate Schedule of the WESTERN and SOUTHERN REGIONS where variable TOTREV is an integer.

Show answer
Correct Option: A

data test; input region $ totrev tothrs totkwh; datalines; north 3 45 55 north 345 64 64 south 235 34 345 east 23 346 576 south 23 5 4 ; run; PROC MEANS DATA=TEST1 NOPRINT; VAR TOTREV TOTKWH TOTHRS; OUTPUT OUT=TEST2 sum(TOTREV TOTKWH) = mean(TOTREV) = median(TOTHRS) = / AUTONAME; run; What are the column names of the dataset TEST2?
technology programming languages

  1. TYPE , FREQ , totrev_Sum , totkwh_Sum , totrev_Mean , tothrs_Median

  2. TYPE , FREQ , total revenue sum , total kwh Sum , total revenue Mean , total hrs Median

  3. TYPE , FREQ , totrev , totkwh , tothrs

  4. totrev_Sum , totkwh_Sum , totrev_Mean , tothrs_Median

Show answer
Correct Option: A

Which of the following code can obtain a 95 percent confidence interval around the mean total KwH consumption and around the mean billed revenue, along with the mean and median from the dataset ORGANIZATION.
technology programming languages

  1. PROC MEANS DATA= ORGANIZATION MEDIAN MEAN CLM MAXDEC=0; Label TOTREV = 'Total Billed Revenue' TOTKWH = 'Total KwH Consumption'; VAR TOTREV TOTKWH; run;

  2. PROC MEANS DATA= ORGANIZATION MEDIAN MEAN UCLM ; Label TOTREV = 'Total Billed Revenue' TOTKWH = 'Total KwH Consumption'; VAR TOTREV TOTKWH; run;

  3. PROC MEANS DATA= ORGANIZATION MEDIAN MEAN LCLM Label TOTREV = 'Total Billed Revenue' TOTKWH = 'Total KwH Consumption'; VAR TOTREV TOTKWH; run;

  4. PROC MEANS DATA= ORGANIZATION MEDIAN SUM CLM MAXDEC=0; Label TOTREV = 'Total Billed Revenue' TOTKWH = 'Total KwH Consumption'; VAR TOTREV TOTKWH; run;

Show answer
Correct Option: A

A variable defined in a report is available
technology programming languages

  1. For one tab

  2. For all tabs of the Report

  3. Depends how it is defined as global or Private

  4. None of the above

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Correct Option: B

Suppose you want to define a class named Application1. This is the only class in the application. Which code completes the declaration of the class?
technology programming languages

  1. class Application1

  2. public class Application1

  3. public static void Application1

  4. static Application1

Show answer
Correct Option: B

Suppose you are using a Windows operating system and you wish to run an application. The application class is named App1 and is contained within the samples.java package. Choose the command that will run the application.
technology programming languages

  1. java App1.samples.java

  2. java samples.java.App1

  3. javac samples.java.App1

  4. javac App1.samples.java

Show answer
Correct Option: B
Explanation:

To run an application in Java, the user needs to know the correct command to execute. In this case, we are given the class name and package name of the application we wish to run.

Option A: java App1.samples.java - This option is incorrect because it uses an invalid syntax to run the application. The correct format is "java .".

Option B: java samples.java.App1 - This option is correct. By specifying the full package and class name, we can run the application using the Java Virtual Machine (JVM).

Option C: javac samples.java.App1 - This option is incorrect because the "javac" command is used to compile Java source code, not run an application.

Option D: javac App1.samples.java - This option is incorrect because it uses an invalid syntax to compile the application. The correct format is "javac /.java".

Therefore, the correct answer is:

The Answer is: B