Hadoop Online Quiz
Following quiz provides Multiple Choice Questions (MCQs) related to Hadoop Framework. You will have to read all the given answers and click over the correct answer. If you are not sure about the answer then you can check the answer using Show Answer button. You can use Next Quiz button to check new set of questions in the quiz.
Q 1 - HDFS files are designed for
A - Multiple writers and modifications at arbitrary offsets.
B - Only append at the end of file
Answer : B
Q 2 - Under HDFS federation
A - Each namenode manages metadata of the entire filesystem.
B - Each namenode manages metadata of a portion of the filesystem.
C - Failure of one namenode causes loss of some metadata availability from the entire filesystem.
Answer : B
Q 3 - Which of the following is not a fencing mechanism for a previously active namenode?
A - Disabling its network port via a remote management command.
B - Revoking its access to shared storage directory.
Answer : C
Q 4 - The file in Namenode which stores the information mapping the data block location with file name is −
Answer : C
Q 5 - HDFS stands for
A - Highly distributed file system.
B - Hadoop directed file system
Answer : D
Q 6 - The source of HDFS architecture in Hadoop originated as
A - Google distributed filesystem
B - Yahoo distributed filesystem
Answer : A
Q 7 - The data from a remote hadoop cluster can
Answer : D
Q 8 - Which technology is used to serialize the data in Hadoop?
Answer : B
Q 9 - What is distributed cache?
C - The distributed cache is a component that caches java objects.
Answer : B
Q 10 - Which one of the following statements is false regarding the Distributed Cache?
B - The files in the cache can be text files, or they can be archive files like zip and JAR files.
C - Disk I/O is avoided because data in the cache is stored in memory.