STUDY FREEVR

O LEVEL-PAPER 2nd -- M2-R4 : INTERNET TECHNOLOGY & WEB DESIGN THESE ARE THE QUESTIONS WHICH FREQUENTLY ASKED IN    LAST 10 YEARS ----- Differences Between Client-Server and Peer-to-Peer network BASIS FOR COMAPAISON CLIENT-SERVER PEER-TO-PEER Basic There is a specific server and specific clients connected to the server. Clients and server are not distinguished; each node act as client and server. Service The client request for service and server respond with the service. Each node can request for services and can also provide the services. Focus Sharing the information. Connectivity. Data The data is stored in a centralized server. Each peer has its own data. Server When several clients request for the services simultaneously, a server can get bottlenecked. As the services are provided by several servers distributed in the peer-to-peer

O LEVEL-PAPER 2nd -- M2-R4 : INTERNET TECHNOLOGY & WEB DESIGN THESE ARE THE QUESTIONS WHICH FREQUENTLY ASKED IN    LAST 10 YEARS ----- Cybercrime Cybercrime is defined as a crime in which a computer is the object of the crime (hacking, phishing, spamming) or is used as a tool to commit an offense (child pornography, hate crimes). Cybercriminals may use computer technology to access personal information, business trade secrets or use the internet for exploitative or malicious purposes. Criminals can also use computers for communication and document or data storage. Criminals who perform these illegal activities are often referred to as hackers. Cybercrime may also be referred to as computer crime. Common types of cybercrime include online bank information theft, identity theft, online predatory crimes and unauthorized computer access. More serious crimes like cyberterrorism are also of significant concern. Cybercrime encompasses a wide range of acti

O LEVEL-PAPER 2nd -- M2-R4 : INTERNET TECHNOLOGY & WEB DESIGN THESE ARE THE QUESTIONS WHICH FREQUENTLY ASKED IN    LAST 10 YEARS ----- EXPLAIN DNS AND DHCP IN BRIEF-- DNS AND DHCP Definition of DNS DNS (Domain Name System)  is a mechanism which provides directory lookup service which  maps  the name of a host on the Internet and its unique numerical address (logical address). Definition of DHCP DHCP (Dynamic Host Configuration Protocol)  has been concocted to impart static and dynamic address allocation to the hosts connected in the network. It includes information such as IP address and subnet mask of the computer, IP address of the router and IP address of the name server. BASIS FOR COMPARISON DNS DHCP Basic It is an address resolving mechanism. It is a protocol used for assigning IP's to the host in a local area network statically or dynamically. Featur

O LEVEL-PAPER 2nd -- M2-R4 : INTERNET TECHNOLOGY & WEB DESIGN THESE ARE THE QUESTIONS WHICH FREQUENTLY ASKED IN    LAST 10 YEARS ----- EXPLAIN THE FOLLOWING IN BRIEF:-- 1. Repeater  – A repeater operates at the physical layer. Its job is to regenerate the signal over the same network before the signal becomes too weak or corrupted so as to extend the length to which the signal can be transmitted over the same network. An important point to be noted about repeaters is that they do not amplify the signal. When the signal becomes weak, they copy the signal bit by bit and regenerate it at the original strength. It is a 2 port device. 2. Hub  –  A hub is basically a multiport repeater. A hub connects multiple wires coming from different branches, for example, the connector in star topology which connects different stations. Hubs cannot filter data, so data packets are sent to all connected devices.  In other words,  collision domain  of all hosts connected

HOW TO PASS CCC EXAM WITH ONE ATTEMPT (NIELIT)               IMPORTANT TOPIC WHICH ASKED  EVERY  YEARS---- EXPLAIN THE FOLLOWING IN BRIEF-- DATABASE MANAGEMENT SYSTEM (DBMS) MULMTIMEDIA  & E- LEARNING COMPUTER SYSTEM AND ITS VARIOUS COMPONENTS CONVERSION OF BINARY DIGIT TO DECIMAL  OPERATING SYSTEM AND ITS FUNCTION E- COMMERCE SPAM AND VIRUS  HIGH LEVEL AND LOW LEVEL LANGUAGE   MICR AND OCR  RAM AND ROM  CACHE MEMORY AND REGISTERS   IMPACT AND NON IMPACT  PRINTER SYSTEM AND APPLICATION SOFTWARE  INTERPRETER  AND COMPLIER MS OFFICE   FIREWALL E-COMMERCE OSI LAYER TELNET  URL WEB BROWSER HUB,SWITCH,ROUTER  COOKIES  TCP/IP WWW INTERNET & INTRANET HTTP ANTIVIRUS RING,MESH,BUS,STAR IPV4 & IPV6 MAN,WAN,LAN SMTP JAVA & JAVASCRIPT WIRELESS NETWORK DNS