Unfortunately, no text books can help you pass the certification. It is an applied exam, where you apply your skills. There is no direct answer to any question. It is worked on and solved. Before, I can tell you the links please tell the links I can refer to study the Base SAS certification.
https://support.sas.com/documentation/cdl/en/statug/63347/HTML/default/viewer.htm#statug_plm_a000000...
support.sas.com Provides detailed reference material for using SAS/STAT software to perform statistical analyses, including analysis of variance, regression, categorical data analysis, multivariate analysis, survival analysis, psychometric analysis, cluster analysis, nonparametric analysis, mixed-models analysis, and survey data analysis, with numerous examples in addition to syntax and usage information. |
https://video.sas.com/detail/videos/how-to-tutorials#category/videos/how-to-tutorials/7
https://support.sas.com/documentation/cdl/en/statug/63347/HTML/default/viewer.htm#statug_introcom_a0...
https://video.sas.com/detail/video/5334372288001/logistic-regression-modeling-using-the-logselect-pr...
https://communities.sas.com/t5/SAS-Data-Mining-and-Machine/Automatically-collapsing-levels-of-a-cate...
https://support.sas.com/documentation/cdl/en/statug/63347/HTML/default/viewer.htm#statug_phreg_sect0...
support.sas.com Provides detailed reference material for using SAS/STAT software to perform statistical analyses, including analysis of variance, regression, categorical data analysis, multivariate analysis, survival analysis, psychometric analysis, cluster analysis, nonparametric analysis, mixed-models analysis, and survey data analysis, with numerous examples in addition to syntax and usage information. |
| communities.sas.com Is there a way of automatically collapsing levels of a categorical variable in SAS Enterprise miner (I dont want to do it using the replacement editor as this is a manual approach). One way of doiing this in SAS enterprise guide is to use the greenacre's method. This collapses levels that lead to ... |
| video.sas.com In this video, you learn how to perform similar analyses using PROC LOGSELECT in SAS Viya as you can using PROC LOGISTIC in SAS 9. This includes automatic model selection using validation data. |
support.sas.com Provides detailed reference material for using SAS/STAT software to perform statistical analyses, including analysis of variance, regression, categorical data analysis, multivariate analysis, survival analysis, psychometric analysis, cluster analysis, nonparametric analysis, mixed-models analysis, and survey data analysis, with numerous examples in addition to syntax and usage information. |