Q. Which of the following parameter is the threshold for the accounting and serialization buffers?

View solution

Q. ______________ is percentage of memory relative to the maximum heap size in which map outputs may be retained during the reduce.

View solution

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

View solution

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

View solution

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

View solution

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

View solution

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

View solution

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

View solution

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

View solution

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

View solution

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

View solution

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

View solution

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

View solution

Q. _________ method clears all keys from the configuration.

View solution

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

View solution

Q. ________ checks whether the given key is deprecated.

View solution

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

View solution

Q. Which of the following adds a configuration resource?

View solution

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

View solution

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

View solution