Data Analyst Vs Business Analyst Vs Data Engineer Vs BI Specialist

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  Data Science - Complete Track • Step 1 - Identify the business problem/value addition/question – ( Data Insights ) this has to be the starting point. • Step 2 - Data availability ( Data Governance ) - Have the structure of your data set defined – The real challenge starts here-                o Do we have the data?                o Do we have access to the required data? • Step 3 -Getting Data ( Data Mining / Data Pipeline ) – How to collect the data from different sources in the system • Step 4 - Data preparation (ETL / ELT) – Once you have data there will be lot of cleaning and preparation required, reduce/increase/combine/split the predictors, determine and eliminate outliers, populate missing values convert few categorical variables into numerical etc. • Step 5 –Exploratory Data Analysis (EDA) – In this step we do descriptive and diagnostic analysis of the existing data. We build multiple graphs that give us direction towards the next steps of predictive analytics. We migh
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OSI MODEL Vs TCP-IP MODEL



TCP/IP and OSI are the 2 most widely used networking models for communication. 

OSI is a conceptual model which is not practically used for communication.

TCP/IP is used for establishing a connection and communicating through the network.

OSI model mainly emphasis on the services, interfaces and protocols.

TCP model is not able to distinctly describe the above concepts.


TCP/IP enables 

  • Only connectionless (UDP) communication mode in the network layer.
  • Connectionless (UDP) and connection-oriented (TCP) in the transport layer.

OSI model enables

  • Supports UDP and TCP communication over the network layer.
  • In Transport layer, TCP communication is merely allowed.







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