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computersciencej

TCP/IP model questions based Study Material for gate Computer Science - 0 views

Computer Science Study Material for Gate

shared by computersciencej on 17 Nov 17 - No Cached
  • computersciencej on 17 Nov 17
     
    TCP/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
Ahmed Mansour

CRC Cards Tutorial - 0 views

users.csc.calpoly.edu/...crc_b

CRC oop

shared by Ahmed Mansour on 04 Jul 09 - Cached
  • Object Oriented Analysis and Design using CRC Cards
  • A CRC cards is an index card that is use to represent the responsibilities of classes and the interaction between the classes. CRC cards are an informal approach to object oriented modeling. The cards are created through scenarios, based on the system requirements, that model the behavior of the system. The name CRC comes from Class, Responsibilities, and Collaborators which the creators found to be the essential dimensions of object oriented modeling.
    • Ahmed Mansour
      Ahmed Mansour on 04 Jul 09
       
      One of the most popular methods for identifying and categorizing classes is to use class-responsibility-collaboration cards (CRC). Each CRC card represents a single class's data attributes, responsibilities, and collaborations. source : Thought Process Book..
    • Ahmed Mansour
      Ahmed Mansour on 04 Jul 09
       
      You need to create three sections on each card: - The name of the class - The responsibilities of the class - The collaborations of the class
  • Why uses CRC cards?
  • ...4 more annotations...
  • They are portable... No computers are required so they can be used anywhere. Even away from the office. The allow the participants to experience first hand how the system will work. No computer tool can replace the interaction that happens by physically picking up the cards and playing the roll of that object... The are a useful tool for teaching people the object-oriented paradigm. They can be used as a methodology them selves or as a front end to a more formal methodology such as Booch, Wirfs-Brock, Jacobson, etc.
  • Tutorial
    • Ahmed Mansour
      Ahmed Mansour on 04 Jul 09
       
      here we can found simple tutorial for illustration...
  • A CRC cards is an index card that is use to represent the responsibilities of classes and the interaction between the classes. CRC cards are an informal approach to object oriented modeling. The cards are created through scenarios, based on the system requirements, that model the behavior of the system. The name CRC comes from Class, Responsibilities, and Collaborators which the creators found to be the essential dimensions of object oriented modeling.
  • Why uses CRC cards? They are portable... No computers are required so they can be used anywhere. Even away from the office. The allow the participants to experience first hand how the system will work. No computer tool can replace the interaction that happens by physically picking up the cards and playing the roll of that object... The are a useful tool for teaching people the object-oriented paradigm. They can be used as a methodology them selves or as a front end to a more formal methodology such as Booch, Wirfs-Brock, Jacobson, etc.
  • Ahmed Mansour on 04 Jul 09
     
    This is great tutorial for CRC cards ( sort of object oriented modeling approach) \ni think it was useful for me ... hoping to be useful for all of us : ) ..
Janos Haits

Chronicle Security - Homepage - 0 views

chronicle.security

security homepage Service Google online tools web internetsafety internet development technology Science Programming

shared by Janos Haits on 26 Jan 18 - No Cached
  • Janos Haits on 26 Jan 18
     
    "Chronicle was born in 2016 as a project within X, Alphabet's moonshot factory. Cybercrime now affects billions of people globally, and the organizations responsible for protecting critical information and systems need more help to keep up. Cybersecurity needed a moonshot."
Janos Haits

Wekinator | Software for real-time, interactive machine learning - 0 views

www.wekinator.org

machinelearning machine learning music software opensource Web2.0 processing projects collaboration Media education technology research science Artificial-Intelligence development online computer Programming

shared by Janos Haits on 04 Oct 17 - No Cached
  • Janos Haits on 04 Oct 17
     
    "The Wekinator allows users to build new interactive systems by demonstrating human actions and computer responses, instead of writing programming code."
Abdelrahman Ogail

Quis custodiet ipsos custodes? - Wikipedia, the free encyclopedia - 0 views

en.wikipedia.org/...is_custodiet_ipsos_custodes%3F

LOL

shared by Abdelrahman Ogail on 01 Aug 09 - Cached
  • The question is put to Socrates, "Who will guard the guardians?" or, "Who will protect us against the protectors?" Plato's answer to this is that they will guard themselves against themselves. We must tell the guardians a "noble lie."[1] The noble lie will inform them that they are better than those they serve and it is therefore their responsibility to guard and protect those lesser than themselves. We will instill in them a distaste for power or privilege; they will rule because they believe it right, not because they desire it.
Abdelrahman Ogail

ELIZA - Wikipedia, the free encyclopedia - 0 views

en.wikipedia.org/ELIZA

Natural-Language-Processing ELIZA AI-In-Medicine

shared by Abdelrahman Ogail on 26 Jun 09 - Cached
  • ELIZA was a computer program and an early example (by modern standards) of primitive natural language processing. ELIZA operated by processing users' responses to scripts, the most famous of which was DOCTOR, a simulation of a Rogerian psychotherapist. In this mode, ELIZA mostly rephrased the user's statements as questions and posed those to the 'patient.' ELIZA was written by Joseph Weizenbaum between 1964 to 1966
Janos Haits

A Million Dollar Request for Social Networks | Blockstack - 0 views

www.requestforsocialnetworks.com

social networks networks web2.0 Social Media Social media collaboration tools business online software million poll response development technology Science Programming

shared by Janos Haits on 13 May 18 - No Cached
  • Janos Haits on 13 May 18
     
    "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."
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