Differentiate between: (a) MAN and WAN (b) Website and web page (c) Router and Gateway (d) Bus and Star topology

Q. Differentiate between:

(a) MAN and WAN

(b) Website and web page

(c) Router and Gateway

(d) Bus and Star topology

(e) Static and Dynamic web pages

Answer :-

(a) MAN and WAN:-

• LAN stands for Local Area Network. Whereas MAN stands for Metropolitan Area Network.
• LAN’s ownership is private. Whereas MAN’s ownership can be private or public.
• LAN have high speed while in MAN have average speed.

(b) Website and web page:-

A website is composed of a group of webpages linked together. A website refers to a central location on a webserver that contains more than one web page. A website may have just a home page, or it may have many other internal webpages in addition to the home page.

(c) Router and Gateway:-
Router: - A router works like a bridge but can handle different protocols.
Gateway: - Device that connects dissimilar network.

(d) Bus and Star topology:-

• Bus or Linear Topology:- In this topology, all devices on network are connected to a single continuous cable called a bus. Transmission from any station travels the length of the bus in both directions and can be received by all other stations. The destination device, on identifying the address on data packet copies the data onto its disk. When the data packet reaches at either end the terminator on that end absorbs the signal, removing from the bus. This topology can be used for smaller networks.

• A long cable known as backbone is used to connect all computers with each other.
• The data is transmitted through a long cable from the sender to the receiver.
• Collision can take place as the data can be transmitted from both ends at the same time.
• If there is a break in a cable, no transmission takes place.

• Star Topology:- In this topology each workstation is directly linked to a central node. Devices can be easily plugged or unplugged to the central node, as need dictates. Any communication between the stations must pass through the central node.

• A central hub is required to connect all computers with each other.
• The data is transmitted from the sender to the receiver by passing through the hub.
• No collision takes place through transmission of data.
• if the central hub fails, the entire network shuts down.

(e)
Static web pages:-

• The content on the server is served up to any visitor the same, every time.
• Contains simple HTML code.
• Requires no additional special software.

Dynamic web pages:-

• The content on the server is the same, but displays different data depen- ding on information such as the time of day, the user who is logged in, the date, the search term it has been given to look for.
• Along with HTML code, also contains dynamic code (in form of scripts)
• Special software must be installed on the server to create dynamic web page.