Rangkuman CCNA 2 - Chapter 1

                               chapter 1, we will learn about the INTERNET

* Understanding the Internet
Internet is a network connecting the computer with other computers using TCP / IP.

By using the internet we are not hard to connect one computer to another using a cable or the like. in the network has a wide range of information and facilities for browsing or surfing the internet service.
Internet serves as an aspect of communication, information providers, and facilities for promosi.Internet can connect us with various parties at various locations around the world.

Internet also have benefits, including:

* As a media file transfer

* As a means of sending a letter (email).

* As a note of learning and education.

* As a means for sales or marketing

Internet also offers other users, namely:
-Provide the servers and software applications for web store
-Providing server for software
-To manage a large internal network.

so that you can access the internet you need to have a connection that is connected to the ISP

method should you use on the network is ::

1 - Asymmetric Digital Subscriber Line (ADSL)

      Is a data communications technology that enables faster data transmission over copper telephone compared to existing conventional modem.

2 - Dial up access

     Network is a type of computer connection to the Internet's most widely used by mobile workers

3 - Satellite

   Is a computer connected via ethernet to a satellite modem that serves as the satellite signal may

4 - Cable Modem

    Is able to provide high-speed data access over cable networks.

Internet hierarchy ******

Simply put, the Internet is a large network consisting of small networks. Most of the major telecommunications companies have their own backbone that connects several areas. In each region, the company has a Point of Presence (POP). POP is a place for local users to access the company's network.

Bandwidth ******

       I think understanding the bandwidth is the difference between the lowest frequency and the highest frequency within the specified range.

 >> Terms of bandwidth per second within the "Bps"

 >> A few kilobits of bandwidth term is "kbps"

 Terms
 >> bandwidth in a matter Megapits is "Mbps"

 Terms of bandwidth
 >> Gigapits within the "Gbps"

in terms of bandwidth, there are a network called "Metro Ethernet", which means the network that connects the main office location with all branches.

This network uses a technology that has been activated. medium used to connect to the internet is the "Internet backbone, fiber optic cable". This network utility makes a hint to visualize ISP network interconnection,

if you want to send data packets way is to use the PING command, for example ::

ping <192.168.1.1> enter, then enter  the  IP  to destination

  if no data packets to the destination way to overcome the problem is with the output of the traceroute utility.

ISP connectivity ******

         some devices used for ISP connectivity include:

         * DSL multiplexer acces

         * Border gateway routers.

=> ISP also has a responsible organization and has an important role. one of which is:

=> Customer-specific service => role is to take orders and make sure that all the requirements have been accepted into the database booking.

****** Here is some kind of ISP services with the following characteristics:

 1. Connection Speed ​​(Connection Speed)

 • The download speed varies from 56 kbps for dial-up and 1.5 Mbps or more for higher technology such as DSL and Cable Modem.

 • High-speed connection recommended for someone who many download programs, play games online, or run their own servers.

 2. Video on Demand

 • Download movies in real-time which allows the user to see the movie on the internet directly. This service is also referred to as Streaming Video.

3. Content Filtering (Content Filtering)

 • ISP provides software that can be downloaded to prevent the specific material based on user specifications.

 • Software is often used to block inappropriate sites and to block attacks siebuah site.

 4. Virus Scanning

 • ISPs often include virus scanning and anti-spam in a part of the package connections.

 • ISP most malicious code scanning of files uploaded from the user and the user to the next.

 5. IP Telephone

 • ISPs also provide IP Telephone service that allows users to make and receive calls from the internet.

 • When using the Internet, distance is usually not applicable.

 6. Personal Home Pages

 • Personal Home Pages are provided in the ISP service. Usually the size of web space and traffic is limited.

 • Design and maintenance of website depends on its creator.

 7. Web Hosting Services

 • Organizations that do not have a server to use ISP server as their server.

 • Web Hosting Service is usually purchased by the size of the web site and the anticipation of each month.

                                                           so a summary of me ..

                                                                       Thank you ....