Cisco CCSP Certifications Exam 642-523

The Internet is a network of networks. It is a global set of connections of computers that enables the exchange 640-822 of data, news and opinion. Aside from being a communications medium, the Internet has become a platform for new ways of doing business, a better way for governments to deliver public services and an enabler of lifelong learning.

Unlike the telephone, 642-426 radio or television, the Internet is a many-to-many communication medium. John Gage argues that—

The Internet is not a thing, a place, a single technology, or a mode of governance: it is an agreement. In the language of those who build it, it is a protocol, a way of behaving. What is startling the world is 642-523 the dramatic spread of this agreement, sweeping across all areas of commerce, communications, governance that rely on the exchange of symbols.