Hadoop Assessment

Hadoop Assessment

April 13, 2021

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1. The source of HDFS architecture in Hadoop originated as which of the following?
2. Hadoop Framework is written in
3. The archive file created in Hadoop always has the extension of
4. Apache Hadoop achieves reliability by replicating the data across multiple hosts, and hence does not require ________ storage on hosts.
5.Which statement is false about Hadoop
6. Which scenario demands highest bandwidth for data transfer between nodes
7. What is the major advantages of storing data in block size 128MB
8) One can copy a file into HDFS with a different block size to that of existing block size configuration by using
9) What is the port number for NameNode
10) Point out the wrong statement :
11) The __________ is responsible for allocating resources to the various running applications subject to familiar constraints of capacities, queues etc.
12) Pig operates in mainly how many nodes ?
13) Which of the following will run pig in local mode ?
14) The ____________ and the EditLog are central data structures of HDFS.
15) HDFS, by default, replicates each data block _____ times on different nodes and on at least ____ racks.
16) _______ is a utility which allows users to create and run jobs with any executables as the mapper and/or the reducer.
17) _________ is the default Partitioner for partitioning key space. Please select 2 correct answers
18) In order to read any file in HDFS, instance of __________ is required.
19) _____________ is used to read data from bytes buffers .
20) Applications can use the _________ provided to report progress or just indicate that they are alive.
21) ________ is a platform for constructing data flows for extract, transform, and load (ETL) processing and analysis of large datasets.
22) The Pig Latin scripting language is not only a higher-level data flow language but also has operators similar to :
23) Hadoop I/O Hadoop comes with a set of ________ for data I/O.
24) Apache Hadoop ___________ provides a persistent data structure for binary key-value pairs.
25) Which of the following format is more compression-aggressive ?
26) The _________ as just the value field append(value) and the key is a LongWritable that contains the record number, count + 1.
27) The __________ is a framework-specific entity that negotiates resources from the ResourceManager
28) Apache Hadoop YARN stands for :
29) The CapacityScheduler supports _____________ queues to allow for more predictable sharing of cluster resources.
30) Which of the following function is used to read data in PIG ?
sanjith

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