TCP/IP model questions based Study Material for gate Computer Science - 0 views
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computersciencej on 17 Nov 17TCP/IP protocol based questions for gate computer science exam Q1.What is the difference between transport and session layer of OSI model. Answer: OSI Model Transport Layer The transport layer uses the services provided by the network layer, such as best path selection and logical addressing, to provide end-to-end communication between source and destination. The transport -layer data stream is a logical connection between the endpoints of a network. End-to-end control is provided by sliding windows and reliability in sequencing numbers and acknowledgments. The transport layer regulates information flow to ensure end-to-end connectivity between host applications reliably and accurately. The TCP/ IP protocol of Layer 4 (t transport t layer ) has two protocols. They are TCP and UDP. The transport layer accepts data from the session layer and segments the data for transport across the network. Generally, the transport layer is responsible for making sure that the data is delivered error-free and in the proper sequence. Flow control generally occurs at the transport layer. OSI Model Session Layer The session layer establishes, manages, and terminates communication sessions. Communication sessions consist of service requests and service responses that occur between applications located on different network devices. These requests and responses are coordinated by protocols implemented at the session layer. The session layer establishes, manages, and terminates sessions between applications Functions of the session layer and the different processes that occur as data packets travel through this layer. More specifically, you learned that Communication sessions consist of mini-conversations that occur between applications located on different network devices. Requests and responses are coordinated by protocols implemented at the session layer. The session layer decides whether to use two-way simultaneous communication or two-way alternate communicati
Voice over Internet Protocol - Wikipedia, the free encyclopedia - 0 views
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Voice over Internet Protocol (VoIP) is a general term for a family of transmission technologies for delivery of voice communications over IP networks such as the Internet or other packet-switched network
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Internet telephony refers to communications services—voice, facsimile, and/or voice-messaging applications—that are transported via the Internet, rather than the public switched telephone network (PSTN). The basic steps involved in originating an Internet telephone call are conversion of the analog voice signal to digital format and compression/translation of the signal into Internet protocol (IP) packets for transmission over the Internet; the process is reversed at the receiving end.[1]
LOL - Wikipedia, the free encyclopedia - 0 views
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OL (also written with some or all letters lowercase) is an abbreviation for laughing out loud[1][2] or laugh out loud.[3] LOL is a common element of Internet slang used historically on Usenet, but now widespread in other forms of computer-mediated communication, and even face-to-face communication. It is one of many initialisms for expressing bodily reactions, in particular laughter, as text, including initialisms such as ROTFL[4][5][6][7] or ROFL [8] ("roll(ing) on the floor laughing"), a more emphatic expression of laughter, and BWL ("bursting with laughter"), above which there is "no greater compliment" according to technology columnist Larry Magid.[9] Other unrelated expansions include the now mostly historical "lots of luck" or "lots of love" used in letter-writing.[10
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Corruptions of "LOL"
Meta - AI for Science - 0 views
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"Meta is a tool that helps researchers understand what is happening globally in science and shows them where science is headed. Pending shareholder and court approval, the Chan Zuckerberg Initiative is acquiring Meta to help bring its technologies to the entire scientific community. Sign up now to reserve your free account."
Google Computer Science Education - 0 views
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"Computer science (CS) education is a pathway to innovation, to creativity and to exciting career opportunities. We believe that all students deserve these opportunities. That is why Google is committed to developing programs, resources, tools and community partnerships which make CS engaging and accessible for all students."
specification - JSON-RPC - Trac - 0 views
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3. JSON Class hinting ¶ There are only simple data types defined in JSON. To overcome this problem in a JSON compatible way a special property for objects is introduced. {"__jsonclass__":["constructor", [param1,...]], "prop1": ...} The object is then instantiated using the constructor, passing in the parameters. Once constructed the properties (prop1, ...) will be applied.
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To give the serverside peer a chance to send messages to the client side peer, the client side peer may reopen communication by sending an empty HTTP POST.
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--> {"method": "postMessage", "params": ["Hello all!"], "id": 99} <-- {"result": 1, "error": null, "id": 99} <-- {"method": "handleMessage", "params": ["user1", "we were just talking"], "id": null} <-- {"method": "handleMessage", "params": ["user3", "sorry, gotta go now, ttyl"], "id": null} --> {"method": "postMessage", "params": ["I have a question:"], "id": 101} <-- {"method": "userLeft", "params": ["user3"], "id": null} <-- {"result": 1, "error": null, "id": 101}
Numenta | NuPIC - 0 views
OpenHPI.de/ - 1 views
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the educational Internet platform of the German Hasso Plattner Institute, Potsdam. Starting in September you will be able to take part in our worldwide social learning network based on interactive online courses covering different subjects in Information and Communications Technology (ICT). Enter a fascinating world of knowledge with our free open online courses. Meet other participants from around the world and familiarize yourself with fundamental and current topics in ICT, computer science and IT systems engineering.
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Has my email been hacked? - Lista de sitios comprometidos - 0 views
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"Top verified data leaks Here we highlight some of largest-volume data leaks in our database and which have already been verified by the attacked site itself or by its community. Each of them has been made publicly available by the attackers themselves or by those affected through different websites. All this information can also be followed by RSS and Twitter."
A Million Dollar Request for Social Networks | Blockstack - 0 views
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"It's time for a new breed of social networks - where power is taken back from a single authority and control is returned to you, to me, to all of us. It's time to decentralize social networks. This is a movement toward greater personal freedom, but it takes an empowered community to build this future."
TensorFlow -- an Open Source Software Library for Machine Intelligence - 0 views
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"TensorFlow™ is an open source software library for numerical computation using data flow graphs. Nodes in the graph represent mathematical operations, while the graph edges represent the multidimensional data arrays (tensors) communicated between them. The flexible architecture allows you to deploy computation to one or more CPUs or GPUs in a desktop, server, or mobile device with a single API. TensorFlow was originally devel"
OAS - 0 views
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"Advance scientific research. Promote technology. For the good of all humanity. Open Academic Search (OAS) is a working group aiming to advance scientific research and discovery, promote technology that assists the scientific and academic communities, and make research available worldwide for the good of all humanity."
I2P Anonymous Network - 0 views
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What is Domain Name Resolution - 0 views
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What is Domain Name Resolution Introduction When using the Internet most people connect to web sites, ftp servers or other Internet servers by connecting to a domain name, as in www.bleepingcomputer.com. Internet applications, though, do not communicate via domain names, but rather using IP addresses, such as 192.168.1.1. Therefore when you type a domain name in your program that you wish to connect to, your application must first convert it to an IP address that it will use to connect to. The way these hostnames are resolved to their mapped IP address is called Domain Name Resolution. On almost all operating systems whether they be Apple, Linux, Unix, Netware, or Windows the majority of resolutions from domain names to IP addresses are done through a procedure called DNS.
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i think it's great artical !!
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Yes .....we know that Web sites are on servers that has IP adresses like this 217.143.56.12 for example .....this article tell us how the site name [www.google.com] is converted to the IP thanks Mans
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ya tecno ya gamedddddd mesh de elly kona bntklm feha fel microbus :D
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Hosts File - There is a file called the HOSTS file that you can use to convert domain names to IP addresses. Entries in the HOSTS file override any mappings that would be resolved via a DNS server
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Netbios - This only applies to Windows machines and will only be used to map names to IP addresses if all previous methods failed. This method will attempt to map the netbios name you are trying to connect to with an IP address.
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