Data Engineer Given a list of followers in the format:123, 345234, 678345, 123…Where column one is the ID of the follower and column two is the ID of the followee. Find all mutual following pairs (the pair 123, 345 in the example above). How would you use Map/Reduce to solve the problem when the list does not fit in memory?

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Is it possible to make httpservice requests synchronous in adobe flex? : adobe flex action script

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Which query language is used by amazon redshift?

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What is difference between sorted collection and ordered collection, which one is better?

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code to create procedure for taking databse backup in sql server or i have the query for it but what it's query returns means i want to show on my jsp that the databse backup has been taken on the basis of that return value.does it returns 0 or 1.wat is the code for that

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What would you use to edit contents of the file in Linux? Describe some of the important commands mode in vi editor?

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What is the protected method modifier?

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What is sharepoint workflow? Explain its purposes?

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What is difference between Process and Thread?

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What is incremintal loading?

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What are your hobbies/ areas of interest?

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What is poco proxy? : Entity framework

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if a pipe those configuration (ASTM c 76 class b 450mm dia 2500mm length) fixing for water course those lining of water is 7000 running meter. my question is that if 8 joints of pipe ls leakage and we have not permission to stop the water so which treatment we apply on joint in that in condition.

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What is setstring method in java?

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what is mathematics-based operations?

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