hi guys,,
it's the first post for me here so i hope to get help from you

here is the story:
I'm an MCP and i'm studying now the 70-290 course. suddenly i stop and decide to Study the CCNA Course and take the exams, so after this i will have a very good knowledge in Networks.
i know that CCNA is NOT like MCSE this is hardware and this is software and differ.
i get the CCNA v3.1_Semesters and i'm studying it now.
so plz tell me is these semesters enought to pass the exams ? or should i have to study other materials ??
also what is router simulation ??
also about the exams did i take exam after every semester of the four semesters ?? or just one exam after the four semesters ??
I'm in a network whih is 10 workgroup computers and 2 switches and one DSL Router, how can i practice on them ?? i mean can i practice on them ?? or how to practice ??
i hope to get help here and i'm very sorry about my bad english