MCA

There is good scope of getting a lateral entry as you do not have any additional educational qualification. After graduation, you will only get admission for the complete course.

1. You can excel with objective book for NIMCET by JB Dixit, Ruchi Sharma, Ashish Mangal
2. Upkars MCA test by a team of experts.
3. Arihant MCA entrance test (self-study guide) by Amit M. Agarwal.
4. Mathematics general aptitude books by RS Agarwal.
5. Barron's military flight aptitude tests by Terry L. Duran.
6. The aptitude test workbook by Jim Barrett.
7. Numerical ability and mathematical aptitude by Dr. AB Rao.

After completing MCA, you have great scope.

Most of good IT companies hire IT graduates from campus. IT graduates who do not get job in campus placement struggle to get good job. Therefore, I will recommend that you do full time MCA for better career prospects.

Yes, entrance exam is must to take admission in MCA. Every university conducts their own examination.

Admission for MCA distance learning in Bhartiya Vidyapeeth University is still open.

Both the certifications are more of the technical side. If you have no interest in MCA, then maybe it is difficult for you to understand them better. MCA is not really required for networking certification.

List of top 10 MCA colleges in India 2016:-
1. Department of Computer Science University of Pune
2. School of Computer and Systems Sciences JNU New Delhi
3. School of Computer and Information Sciences University of Hyderabad
4.NIT Trichy
5. Birla Institute of Technology Jaipur
6. NIT Surathkal
7. MNNIT Allahabad
8. PSG College of Technology Coimbatore
9. NIT Rourkela
10. ITM University Gwalior

The percentage doesn't matter when it comes to a job. If you have the rights skill set, you will get a job anywhere you wish to.