plz tell me answer of this if you don't know then don't and and don't write foolish ans.
Ch:3 English
Std 8
Answers
Answer:
the letter to my friend
57/7 odisha kolkata
Telecommunications network
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vte
A telecommunications network is a group of nodes interconnected by links that are used to exchange messages between the nodes.[1] The links may use a variety of technologies based on the methodologies of circuit switching, message switching, or packet switching, to pass messages and signals. For each message, multiple nodes may cooperate to pass the message from an originating node to the a destination node, via multiple network hops. For this routing function each node in the network is assigned a network address for identification and locating it on the network. The collection of addresses in the network is called the address space of the network.
Examples of telecommunications networks include computer networks, the Internet, the public switched telephone network (PSTN), the global Telex network, the aeronautical ACARS network, and the wireless radio networks of cell phone telecommunication providers.[2]
Contents
1 Network structure
2 Data networks
3 Capacity and speed
4 References
Network structure
In general, every telecommunications network conceptually consists of three parts, or planes (so called because they can be thought of as being, and often are, separate overlay networks):
The data plane (also user plane, bearer plane, or forwarding plane) carries the network's users' traffic, the actual payload.
The control plane carries control information (also known as signaling).
The management plane carries the operations and administration traffic required for network management. The management plane is sometimes considered a part of the control plane.
Data networks
Computer network types
by spatial scope
Data Networks classification by spatial scope.svg
Nanoscale
Near-field (NFC)
Body (BAN)
Personal (PAN)
Near-me (NAN)
Local (LAN)
Home (HAN)
Storage (SAN)
Wireless (WLAN)
Campus (CAN)
Backbone
Metropolitan (MAN)
Municipal wireless (MWN)
Wide (WAN)
Cloud (IAN)
Internet
Interplanetary Internet
vte
Data networks are used extensively throughout the world for communication between individuals and organizations. Data networks can be connected to allow users seamless access to resources that are hosted outside of the particular provider they are connected to. The Internet[3] is the best example of many data networks[1] from different organizations all operating under a single address space.
Terminals attached to IP networks like the Internet are addressed using IP addresses. Protocols of the Internet protocol suite provide the control and routing of messages across the and IP data network. There are many different network structures that IP can be used across to efficiently route messages, for example:
wide area networks (WAN)
metropolitan area networks (MAN)
local area networks (LAN)
Internet area networks (IAN)
campus area networks (CAN)
virtual private networks (VPN)
Answer:
Columbia the inhabitant of Italy made the route first effort of finding the sea route to America in 1492 C.E.
Columbia the inhabitant of Italy made the route first effort of finding the sea route to America in 1492 C.E.He named the natives of America as Red Indians and island on its bank as West Indies