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programming languages Online Quiz - 251

Description: programming languages Online Quiz - 251
Number of Questions: 20
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Tags: programming languages
Attempted 0/20 Correct 0 Score 0
  1. Bottenbruch

  2. Dennis Ritchie

  3. McCarthy

  4. Martin Richards


Correct Option: B
  1. W. A. Wulf

  2. Martin Richards

  3. D. B. Russell

  4. A. N. Habermann


Correct Option: B

Who developed J# (pronounced 'jay-sharp')?

  1. Google

  2. Microsoft

  3. Oracle

  4. Sun


Correct Option: B
  1. Guido van Rossum

  2. Dennis Ritchie

  3. James Gosling

  4. Won Neuman


Correct Option: C

Who designed Ruby ?

  1. James Smith

  2. Carl Hofman

  3. Yukihiro Matsumoto

  4. J Bannerji


Correct Option: C
  1. $38,245.39 and 38245.39

  2. $38,245.40 and $38245.40

  3. $38,245.40 and 38245.40

  4. $38,245.40 and 38,245.40


Correct Option: C
  1. you change them

  2. you cancel them

  3. you end your SAS session

  4. all of the above


Correct Option: D
  1. your PROC REPORT step will not execute successfully

  2. you can produce only list reports

  3. you can order rows by specifying options in the PROC REPORT statement

  4. you can produce only summary reports


Correct Option: B

PROC CONTENTS can read sequential files. The CONTENTS statement cannot.True or False?

  1. True

  2. False


Correct Option: B

How many characters can be used in a label

  1. 40

  2. 96

  3. 200

  4. 256


Correct Option: D

You can use only one DATALINES statement in a DATA step.True or False?

  1. True

  2. False


Correct Option: B

While working with Formats,If you don't specify the LIBRARY= option, your formats are stored in Work.Formats, and they exist

  1. only for the current procedure

  2. only for the current DATA step

  3. only for the current SAS session

  4. permanently


Correct Option: C
  1. by boarded transfer deplane;

  2. class boarded transfer deplane;

  3. output boarded transfer deplane;

  4. var boarded transfer deplane;


Correct Option: D
Explanation:

To limit a PROC MEANS analysis to the variables Boarded, Transfer, and Deplane, we need to specify the variables in the procedure statement.

Option A "by boarded transfer deplane" is used to specify the variables used in the BY statement for the procedure. This is not used to limit the variables in the analysis.

Option B "class boarded transfer deplane" is used to classify variables. This option is not used to limit the variables in the analysis.

Option C "output boarded transfer deplane" is used to specify the variables to be included in the output dataset. This option is not used to limit the variables in the analysis.

Option D "var boarded transfer deplane" is used to specify the variables to be analyzed in the PROC MEANS statement. This option is correct as it limits the analysis to the specified variables.

Therefore, the answer is: D. var boarded transfer deplane;

Which of the following statements is true regarding BY-group processing

  1. BY variables must be either indexed or sorted

  2. Summary statistics are computed for BY variables

  3. BY-group processing is preferred when you are categorizing data that contains few variables

  4. BY-group processing overwrites your data set with the newly grouped observations


Correct Option: A

The WHERE statement does not perform automatic conversions(character/numeric) in comparisons :True or False?

  1. True

  2. False


Correct Option: B

The Equivalent Code for CATX(SP, OF X1-X4) is

  1. X1||SP ||X2||SP||X3||SP||X4

  2. TRIM(X1)||SP||TRIM(X2)||SP||TRIM(X3)||SP||TRIM(X4)

  3. TRIM(LEFT(X1))||TRIM(LEFT(X2))||TRIM(LEFT(X3))||TRIM(LEFT(X4))

  4. TRIM(LEFT(X1))||SP||TRIM(LEFT(X2))||SP||TRIM(LEFT(X3))||SP||TRIM(LEFT(X4))


Correct Option: D
  1. VAR statement

  2. VARNUM Option

  3. Variables Statement

  4. all of the above


Correct Option: A
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