BCA

B.E. is more recommended as it provides more in-depth knowledge of computer networking and the way a computer and the networking system work. This serves as the foundation for CISCO certification courses. Comparatively, BCA doesn't provide the details to such an extent. That's one of the reasons why MCA is considered equivalent to BE and not BCA.
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There is certified cisco, Microsoft, networking, Sap/Hana modules available. Today, the market is all about if you are prepared for the organization. Degree won't help you land a good career or placement, according to my experience. I have a degree in MBA/MCA and working for an IT company which also features courses and offers leading consultants and teachers from the world offering best training in the industry.

You can pursue BCA after 12th with humanities if you have mathematics as a subject in 12th.

B.Com has way more scope than BCA, but at the end of the day knowledge matters as well.

No, not at all. Any field student can pursue their career in BCA.

Web designing is the making and drawing of structure of websites using HTML CSS. Web development is the development of websites, web applications and other backend services using PHP or JavaScript.

Yes, BCA and MCA is a good course if you want your career in IT field. This course will help you in getting a good job and MCA is also equivalent to B.Tech in CSE or IT. This course can be pursued by any student from science or commerce background. Career prospects are also good in this field.

Yes, you can pursue MA in English from universities like Annamalai University, Acharya Nagarjuna University, SV university etc. through distance mode.