i had listen about various security courses and certifications out there , but lack a proper way and understanding on them . for example should i go for CISCO CCNA or MCSE . and what are the real procedures and benifits of them as i m an engineering student . i had tried pillers and posts to enquire about them , also tried cisco's website , but only get confusion as there were 4 certifications shown to completely master the security issues. so tell me the whole concept , what to do , and what are the roles of pvt. institutes in them and what experiances etc. are really needed.