By admin | December 23, 2009

SAS Certified Adv Programmer 130 Questions (36)

Which one of the following SAS programs uses the most amount of memory resources for output buffers?

A.

data new(bufsize = 1000 bufno = 5);
    set temp;
run;

B.

data new(bufsize = 1000 bufno = 2);
    set temp;
run;

C.

data new(bufsize = 2000 bufno = 3);
    set temp;
run;

D.

data new(bufsize 4000 bufno = 1);
    set temp;
run; 

6 comments | Add One

  1. admin - 12/23/2009 at 10:48 am

    C

  2. Kamal KC - 09/18/2012 at 12:06 am

    Could someone explain the ans, please.

  3. Consty - 02/21/2013 at 12:05 am

    C: 3 buffer are used to send the data to the memory and each buffer load per transfer 2000bytes

  4. r - 10/31/2013 at 2:41 pm

    buf size * buf no. = 2000 * 3= 6000

    When a SAS data library is processed sequentially, the unit of I/O transfer, in bytes, is equal to BUFSIZE*BUFNO.

  5. chinawokee - 07/9/2014 at 6:36 pm

    A 5000
    B 2000
    C 6000
    D 4000?

  6. chinawokee - 07/9/2014 at 6:48 pm

    bufno

    Increasing the number of buffers might not affect performance under the Windows and Unix operating environments… By default, the Windows and Unix operating environments read one buffer at a time…

    Can they test something useful?

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