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What is mixed or hybrid network? Hybrid network usage area? What is Network Architecture ?List of Network Operating Systems |

 Hybrid network A mixed or hybrid network is essentially a combination of client-server and peer-to-peer networks. Generally, the client-server portion dominates in a hybrid network. However, in addition, there are sparsely coupled peer-to-peer network segments. Advantages of a hybrid network are: (i) Client-server applications can be housed and managed centrally. (ii) Users can control access to their respective computer resources and share their resources. Disadvantages of hybrid network are- (i) Having two types of networks makes it difficult for users to access the network. (ii) Need to remember different passwords for workgroups and servers/domains. (iii) Resources are located on different computers and cannot be managed centrally. Different versions of the same file can be scattered across different computers. (iv) Difficulty backing up files stored on different workstations. Network architecture Designing and implementing an effective network with respect to communication ru...
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How to use bootstrap plugin?

BOOTSTRAP EXTEND IN USING CUSTOM PLUGIN Bootbox.js: Bootbox.js is a small JavaScript library that allows creating dialog boxes programmatically using the Bootstrap modal, without having to worry about creating, managing, or removing any required DOM elements or JS event handlers. Example: <!-set up the modal to start hidden and fade in and out -> <div id="myModal" class="modal hide fade"> <!-- dialog contents -->  <div class="modal-body">Hello world!</div> <!-- dialog buttons --> <div class="modal-footer"> <a href="#" class="btn primary">OK</a></div>  </div>  <!-- sometime later, probably inside your on load event callback --> <script>  $("#myModal").on("show" function() { // wire up the OK button to dismiss the modal when shown $("#myModal a.btn").on("click", function(e){ consolelog ("button pressed"...
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BOOTSTRAP Modal, plugins

 BOOTSTRAP  Alert message: Alerts can be created very easily through Bootstrap. Bootstrap alerts can be created using the .alert class and any of these classes. For example: .alert-success, alert-info, alert-warning or alert-danger : Example: <!DOCTYPE html> <link rel="stylesheet" <head> <title> Bootstrap Alert Example</title> <meta charset="utf-8"> <meta name="viewport" content="width=device-width, initial-scale=1"> <link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css">  <script src="https://ajax.googleapis.com/ajax/libs/jquery/3.1.1/jquery.min.js"> </script> <script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/js/bootstrap.min.js"> </script> </head>  <body> <div class="container"> <h2> Alert  Message  </h2> <div class="alert alert-succes...
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বুটস্ট্রাপ পেজ কম্পোনেন্ট

 পেজ কম্পোনেন্ট (PAGE COMPONENTS) বুটস্ট্রাপ প্যানেল: বুটস্ট্রাপ প্যানেল হচ্ছে একটি বর্ডার বক্স, যেখানে কনটেন্ট-এর চারপাশে কিছু প্যাডিং থাকে। প্যানেল তৈরি ব্যবহার করা হয় এবং প্যানেলের কন্টেন্ট. panel-body ক্লাস-এর মধ্যে রাখা করা হয়।  উদাহরণ : <!DOCTYPE html> <html> <head>  <title>Bootstrap Panel Example</title> <meta charset="utf-8">  <meta name="viewport" content="width=device-width, initial-scale=1">  <link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css"> <script src="https://ajax.googleapis.com/ajax/libs/jquery/3.1.1/jquery.min.js"></script> <script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/js/bootstrap.min.js"> </script> </head> <body> <div class="container"> <h2> বেসিক প্যানেলের উদাহরণ </h2>  <div class="panel panel-default"> ...
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What are the fundamental operations of SQL?

Fundamental Operation of SQL SQL in data definition Data is defined or defined using SQL through the CREATE statement. An example is given below CREATE TABLE Employee() Emp_No NUMBER (5) NOT NULL Name CHAR (20) Skill CHAR (20) pay_rate NUMBER (10, 2); Explanation of the statement: (i) A table named Employee can be created through this SQL. The table will have four fields named Emp_No, Name, Skill and Pay_rate. (ii) Emp_No field will be NUMBER type data and this field will never be empty as it is declared as NOT NULL. (iii) Name field will be Character tight data and its length will be 20. (iv) The Skill field will be Character tight data and its length will be 20. (v) Pay_rate field will be NUMBER data type and its length will be 10 and 2 digits after decimal. Now let's say we want to add a new field to this table. Then type the following command: ALTER TABLE Employee ADD Phone_No NUMBER (10); Now type the following command to delete the Employee table. DROP TABLE Employee. SQL in ...
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Classification of computer networks!

Clasification of computer network Computer communication, information sharing, electronic mail, electronic libraries, bulletin boards, etc. using computer networks are increasing in prevalence and spread. As a result, different types of networks are used in different countries of the world today. That is why the computer networks used in the world are classified from different points of view: namely-- (a) Classification of Networks by Ownership : (i) Private Networks and (ii) Public network. (b) Computer network according to type of work According to the type of work computer network can be mainly divided into three parts. These are- (i) Peer-to-peer network (ii) Client-server network (iii) Hybrid network (c) Classification of networks according to geographical extent : (i) Personal Area Network (PAN) (ii) Local Area Network (Local Area Network-LAN) (iii) Metropolitan Area Network (MAN) (iv) Wide Area Network (Wide Area Network-WAN) In general, network segmentation refers to the classi...
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What do you mean by IP address, internet, domain, internet resources and services?

 Internet The Internet is the dominant medium in the computer networking process of today's world. Thanks to the Internet, all the computer users of the entire world have been able to be bound in the same circle. As a result, mutual cooperation, solidarity, etc. have increased unexpectedly. So some call the Internet a network of networks. However, it can be said that the Internet is the dominant force in all computer networking in the current world. The “Internet” is dominating the field by bringing the vast empire of the computer world into its hands. Thanks to the Internet, the communication system has been greatly improved. People can get news from different parts of the world in a short time and at a low cost. You can send the necessary information to the nearest person in any part of the world in a moment. Milestones of internet speed. It plays an immense role in today's communication system and information exchange. NET family members will find solutions to most of their ...
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What are the differences between baseband and broadband transmission systems? How do repeaters and bridges work?

Difference Between Base Band and Broad Band Transmission Systems: Base Band: (1) In a baseband transmission system, the data sent from the computer is sent unaltered over the network connection. (2) Modulation is not required in baseband transmission systems. (3) In a baseband transmission system, multiple signals cannot be transmitted over a single pair of wires simultaneously. (4) Low cost in baseband transmission system. (5) Benefits are less available in baseband transmission systems. Broadband: (i) In broadband transmission system, the information received from the computer is modulated by high frequency and sent over the network connection. (ii) Amplitude modulation and demodulation are required in broadband transmission systems. (iii) In broadband transmission system it is possible to establish multiple connections simultaneously through one connection path (iv) Cost of broadband transmission system is high. (v) More benefits are available in broadband transmission systems. Repe...
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What is data transmission mode? How does data transmission mode work?

Data transmission mode The mode of data movement depends on the direction of data movement. Data transmission modes are generally divided into three categories; namely- (i) Simplex mode or unidirectional mode, (ii) Half-duplex mode or meaning duplex mode, (iii) Full-duplex mode or pre-duplex mode or duplex mode. Simplex : The data transmission mode in which data is transmitted only in one direction is called simplex transmission mode. In this method data can be transmitted only in one direction. That is, the sending computer can send data to the receiving computer. But the receiving computer can never send the data to the sending computer. The first computer can only send data to the second computer. But the second computer cannot send data to the first computer. Half Duplex Mode : At this speed data can be sent in both directions but not simultaneously. When the sending computer sends data to the receiving computer, the receiving computer only receives the data. But the sender cannot ...
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What is the communication model? What is the means OSI model? Describe different types of layers?

Communication model : In the early days of computer networking, various manufacturers made communication software in their own way. Due to the different protocols of these hardware-based software, the software made by one company could not exchange data with the software made by another company. This would be a big problem. Later, a committee was formed from ISO (International Standard Organization) to eliminate this problem. This committee created a protocol model called OSI (Open System Interconnection) to create standard standards for harmonizing all communication software. This model is known as communication model. OSI (Open System Interconnection) Model: The OSI model describes how communication between computers and other networking devices will be developed. The International Organization for Standards (ISO) started working on this model in 1974. The need for the OSI model is felt so that different networking device manufacturers can produce their devices following the same sta...
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