CCNA, CCNP and CCIE is mainly focused on Cisco based range of products which normally used by big enterprises who have the financial capabilities to maintain their server. As far as im concerned is that other products such as Nortel, Alcatel, Huawei etc are emerging as well which give more economical and budget solutions to its customers (damn...). I believe Singapore shall be a very good market for network engineers who studies CCNA onwards.