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Alex George
Alex George has Engineering graduation in Computer Science and an MBA in Finance. He had been working as a senior Network Engineer for ten years. His specialization is in Cisco products. Traveling is one of his hobbies and visited various places as part of his onsite work. He visited different places as part of his onsite work like New York, Dubai, London, etc. Right now Alex is a director of one of the leading career development firms in India, which trains students for UPSC, SSC, and PSC examinations. He guides a lot of students to get selection for various prestigious institutions like CBI, Income Tax Department, etc. Alex George is a stock market investor and a very active intraday trader. Engineering Background: He has a B.Tech in Computer Science and Engineering and passed different network and security courses like CCNA, CCNP (Security), CEH, and various Microsoft certifications. Finance Background: Alex has an MBA in Finance. He is an active intraday trader and a Share Market Investor. Webmaster Skills: Alex is a blogger since 2004. He has a working knowledge of HTML, CSS, PHP, and JavaScrip.

Metropolitan Area Network (MAN)

Metropolitan Area Networks in short MAN usually covers the area of a metropolitan city and is a hybrid between LAN and WAN. This type of networks covers a few kilometers. The cable TV network is an example of Metropolitan Area Network. But there is a difference. MAN is a computer network but cable TV connection provides TV broadcast. In a Metropolitan Area Network, two buildings in a city are connected and start data transfer. That means this connect two devices which are located far away but limited to a metropolitan location. It has the size of a metropolitan city. One of the differences between WAN and MAN is the connection speed. WAN offers low to medium connection speed but Metropolitan Area Network offers high-speed connection.

Technologies Used in MAN

  1. ATM (Asynchronous Transfer Mode)

  2. FDDI

  3. SMDS

  4. Ethernet-based MAN

Functions of Transport Layer PING: Transmit failed. General Failure
Destination Net Unreachable Destination host unreachable
Enable Disabled Adapter Windows Automatic IP Address
Hard Disk SMART Command Failed TTL Expired in Transit
Ping Request Couldn't Find Host Uses of Netstat Command
MAN Standards for Data Communication
Distributed Queue Dual Bus (DQDB) is the Metropolitan Area Network standard for data communication. It is specified in the IEEE 802.6 standard. Using DQDB, networks can be up to 30 miles length and operate at speeds of 34 to 155 Mbit/s.

Devices Provide MAN Connections

Devices used to provide connections here are:
  1. ATM

  2. High-end routers

  3. Switches

  4. Optical switches

Other Networks
  1. Local Area Networks (LAN)

  2. Wide Area Networks (WAN)

  3. Wireless Networks

  4. OSI Layers

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