At this time I will posting about the definition of a network that this time I learned about in school, that is, a local area network or LAN is a computer network that connects computers and devices in a limited geographical area such as homes, schools, computer labs or office buildings. Defining characteristics of LANs, in contrast to the wide area network WAN networks, including those usually higher data transfer rates, smaller geographic areas, and lack of need for channelLAN | Local Area Network
At this time I will posting about the definition of a network that this time I learned about in school, that is, a local area network or LAN is a computer network that connects computers and devices in a limited geographical area such as homes, schools, computer labs or office buildings. Defining characteristics of LANs, in contrast to the wide area network WAN networks, including those usually higher data transfer rates, smaller geographic areas, and lack of need for channelDefinition VSAT
VSAT, These words are not foreign to the ears of a network among experts, is singakatan of VSAT Very Small Aperture Terminal is a great option for people who are in remote areas and in desperate need of internet connection where no other infrastructure such as ADSL, ISDN, etc.. even the telephone.
VSAT dish itself is shaped like a large-sized sanagt and directly facing the sky. With this equipment the digital signal is received and sent to the satellite. Satellite signal itself serves as a successor to be sent to another point on earth.
Definition of HTTP
Definition of HTTP, HTTP is an application layer network protocol used for distributed information systems, collaborative, and using hypermedia. many users in the retrieval of resources interconnected by links, called a hypertext document.HTTP is not limited to use with TCP / IP, although it is one of the HTTP application protocol TCP / IP the most popular over the Internet. It can be implemented on top of HTTP, other protocols over the Internet or over other networks. as mentioned in
"Implemented on top of any other protocol on the Internet, or on other networks.", but the HTTP protocol requires a reliable transport layer.
Definition of HTTPS
Definition of HTTPS, HTTPS is the secure version of HTTP, the communication protocol of the World Wide Web. Invented by Netscape Communications Corporation to provide authentication and encrypted communication and the use of electrical komersi.In addition to using plain text communication, HTTPS session encrypt data using SSL protocol (Secure Socket Layer) or TLS protocol (Transport Layer Security). Both of these protocols provide adequate protection against eavesdroppers, and man in the middle attacks. In general the HTTPS port is 443.
Level of security depends on the accuracy in implementing the web browser and server software and supported by the actual encryption algorithm.
Therefore, on a web page to use HTTPS, and the URL used beginning with 'https' instead of 'http://'
Netmask Address
For the first question can be answered as follows. Computers are basically "stupid", unless programmed and was told in detail. Computers can not tell the difference IP address keals a, b, and c. So the computer does not know the length of the network bit by bit host of a specific IP address. To fix it in the make netmask address.
Broadcast Address
Broadcast address is the IP address in the special use to send or receive information that should be known by all hosts on a network. each IP datagram has a header containing the IP address of the destination address. With this address, then only the destination host the datagram memperoses, while others will host it. Well, What if a host wants to send datagram to all hosts in a network with it?
Would be inefficient if you have to make as much as the destination host the datagram replication. Bandwidth usage will increase the workload of the host increases. This is where the benefits of broadcast address. Host enough to send datagrams to the broadcast address and all the hosts in the same with his networkyang will receive the datagram. In practice, the types of information in the broadcast is typically the routing information.
