Computer Network and Internet কম্পিউটার নেটওয়ারর্ক ও ইন্টারনেট -১

  1. Network can exchange data in between different companies;
  2. There are 2 types of Network in computers in context of geographical region- Local Area Network (LAN) and Wide Area Network (WAN);
  3. When computers are installed very near to each other is the Local Area Network;
  4. When all the computers are installed a long way distance or among the countries is the Wide Area Network;
  5. Wired and Wireless are the medium for making internet or network;
  6. The structure that creates network among the computers is Topology;
  7. The member of the Local Area Network is – Bus Topology, Ring Topology, Star Topology, Completely connected Topology, Delta Topology, Hybrid Topology;
  8. The function of Delta Bus among the different computers- Delta transfer;
  9. In Bus Topology does not have Host computer;
  10. In Star Topology does have Host computer;
  11. In Star Topology Host computer plays role of bridge with the terminal;
  12. The name of extended form of Star Topology is- Tree Topology;
  13. The Star Topology does not allow to transfer data directly from computer to computer;
  14. Hybrid Topology consist of Ring + Bus + completely connected Topology;
  15. Internet was popularly known to all and got its recognition in 1994;
  16. The different servers of different cities come under satellite at the beginning of 90’s;
  17. Each and every document of Internet purpose must have their own Address;
  18. Uniform Resource Location (URL) is the address of document in internet;
  19. There are 3 parts in an internet address;
  20. Account holders of Internet- Netigen;
  21. A person having the full control over the domain of computer is- an operator.
  22. We use web to- (1) Send and receive e-mail, (2) Search for information.
  23. “Freeze Windows Panses” is an Excel command which helps in- Password protection;
  24. Firewall- protects a computer systemfrom hacking & filtering Virus;
  25. A program that can copy itself and infect the computer without permission and knowledge of the owner is called- Virus;
  26. The name of structure where data move through a network is- Packets;
  27. Universal gate- NAND, NOR, EX-OR;
  28. Verification of a log in name and password is known as- Authentication;
  29. VoIP means- Voice OverInternet Protocol;
  30. The Google’s first mobile phone is- Nexus One;
  31. LAN, MAN, WAN, and ISDN are- Network System
  32. What is computer networking?-A system in which computers  are connected to share information and resources.
  33. What is the name of the first Computer Network?Ans: ARPANET (Advanced Research Projects Administration Network)
  34. The IP Address belongs to which of the following class – Class B
  35. The most distinctive difference between in LAN and a WAN is – Distance Covered
  36. The central device in star topology is- Hub/Switch;
  37. The fasted data transmission media is- Fiber optic cable;
  38. All classes IP networks can be divided into smaller networks called- Subnet;


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1 Comment

  1. al aminJune 25, 2018

    Khub valo hoyasa

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