CCNA

A software engineer is a person who applies the principles of software engineering to the design, development, maintenance, testing, and evaluation of the software and systems that make computers or anything containing software work. After MCA if you work in the filed of software engineering, you will be known as Software Engineer. Additional courses or certification will help you to grow in your career as a Software Engineer.

The duration of the course is 7-12 months. Fees depends on the institute and eligibility on none.

Well, you can start with anyone, either of Ethical Hacking or CCNA, since they are different areas but I personally would advise you to know basic networking at least before you go for EH or CCNA.
EH has a very good exposure presently and high demand in job market rather than CCNA.

1. Jetking Infotrain Ltd.
2. Amity Directorate of Distance and Online Education (ADDOE).
3. CMC LTD (A TCS Subsidiary).
4. NIIT – Noida.
5. Indian Institute of Hardware Technology Ltd. (IIHT).

CISCO does not specify any educational qualifications for appearing for CCNA. There are age criteria for appearing for CCNA. You can appear and get CCNA certification. Indian companies prefer network engineers with graduation degree in engineering or BCA/ MCA, etc. Therefore, I will advice you to gain at least graduation degree, beside CCNA for a good career.

I think Java and networking have better scope in future.
1) For many years Java language is providing the best technology solution to the industry and also it is the most secured platform.
Also, you can see that Java is the core technology for android. Android also has a good scope in the current scenario.
2) Networking is one of the best fields because we have to do something new to get better and secure mode of communication. Also, after CCNA, you can clear CCDA.

Java, for sure. If you know Java from deep you are an open weapon. Try to learn php, Python and Django language along with Java.
All the best.