Good day everyone, pls i need full information of networking- ccna,. answers like wat is ccna, wat is it used for, although i have searched d net but its still complicated for me, while searching d net, i sae ccna router and switching, ccna wireless, ccna data center etc, so does it mean wen eva i w ant to learn ccna, all dose are wat i will be taught i will be very grateful if anyone can come toy help in enlightening me on dis: cos i intend starting a course on networking in January 2016