As you have asked about the Centre for Development of Advanced Computing (CDAC) next entrance exam, I am giving you information about it

Admissions to all PG Diploma courses of C-DAC are done through C-DAC’s Computerised Common Admission Test (C-CAT). Every year, C-CAT is usually conducted in June (for August admissions) and December (for February admissions).

Event Dates
Beginning of Online Registration and Application for C-CAT To be announced
Closing of Online Registration & Application, and Payment of Examination Fee for C-CAT To be announced
Downloading of C-CAT Admit Cards To be announced
C-DAC’s Common Admission Test (C-CAT) To be announced
Announcement of C-CAT Ranks To be announced

Insofar CDAC C-CAT Aug 2016 has not been officially announced

C-CAT Syllabus

Syllabus of the different sections of test papers in C-CAT.
Test Paper Topics Duration
Section A English, Quantitative Aptitude, Reasoning 1 hour
Section B Computer Fundamentals, C Programming, Data Structures, Data Communications & Networking, Object Oriented Programming Concepts, Operating Systems 1 hour
Section C Computer Architecture, Digital Electronics, Microprocessors