Q. ____________ specifies the number of segments on disk to be merged at the same time.

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Q. Map output larger than ___________ percent of the memory allocated to copying map outputs.

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Q. Jobs can enable task JVMs to be reused by specifying the job configuration _________

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Q. During the execution of a streaming job, the names of the _______ parameters are transformed.

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Q. The standard output (stdout) and error (stderr) streams of the task are read by the TaskTracker and logged to _________

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Q. ____________ is the primary interface by which user-job interacts with the JobTracker.

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Q. The _____________ can also be used to distribute both jars and native libraries for use in the map and/or reduce tasks.

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Q. __________ is used to filter log files from the output directory listing.

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Q. Which of the following class provides access to configuration parameters?

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Q. ___________ gives site-specific configuration for a given hadoop installation.

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Q. Administrators typically define parameters as final in __________ for values that user applications may not alter.

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Q. _________ method clears all keys from the configuration.

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Q. ________ method adds the deprecated key to the global deprecation map.

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Q. ________ checks whether the given key is deprecated.

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Q. _________ is useful for iterating the properties when all deprecated properties for currently set properties need to be present.

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Q. Which of the following adds a configuration resource?

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Q. For running hadoop service daemons in Hadoop in secure mode ___________ principals are required.

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Q. The simplest way to do authentication is using _________ command of Kerberos.

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Q. Data transfer between Web-console and clients are protected by using _________

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Q. In order to turn on RPC authentication in hadoop, set the value of hadoop.security.authentication property to _________

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