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HDFS Interview Questions and Answers
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Questions
HDFS
0
votes
Q: Replication causes data redundancy then why is it still preferred in HDFS?
asked
Dec 21, 2022
in
HDFS
by
Robin
hdfs-replication
0
votes
Q: What do you understand by Inodes?
asked
Dec 21, 2022
in
HDFS
by
Robin
inodes
0
votes
Q: I have a file “Sample” on HDFS. How can I copy this file to the local file system?
asked
Dec 21, 2022
in
HDFS
by
Robin
hdfs0files
0
votes
Q: Is it a good practice to use HDFS for multiple small files?
asked
Dec 21, 2022
in
HDFS
by
Robin
hdfs-files
0
votes
Q: How will you measure HDFS space consumed?
asked
Dec 21, 2022
in
HDFS
by
Robin
hdfs-space
0
votes
Q: During start up, the ___________ loads the file system state from the fsimage and the edits log file.
asked
Jul 28, 2021
in
HDFS
by
SakshiSharma
hdfs-file-system
0
votes
Q: HDFS is implemented in _____________ language.
asked
Jul 28, 2021
in
HDFS
by
SakshiSharma
hdfs-language
0
votes
Q: Which of the following is not Features Of HDFS?
asked
Jul 28, 2021
in
HDFS
by
SakshiSharma
hdfs-features
0
votes
Q: For every node (Commodity hardware/System) in a cluster, there will be a _________.
asked
Jul 28, 2021
in
HDFS
by
SakshiSharma
cluster
0
votes
Q: The default block size is ______.
asked
Jul 28, 2021
in
HDFS
by
SakshiSharma
block-size
0
votes
Q: The minimum amount of data that HDFS can read or write is called a _____________.
asked
Jul 28, 2021
in
HDFS
by
SakshiSharma
namenode
hdfs-erad
0
votes
Q: ________ NameNode is used when the Primary NameNode goes down.
asked
Jul 28, 2021
in
HDFS
by
SakshiSharma
namenode
0
votes
Q: Which of the following are the Goals of HDFS?
asked
Jul 28, 2021
in
HDFS
by
SakshiSharma
hdfs-goal
+1
vote
Q: HDFS works in a __________ fashion.
asked
Jul 28, 2021
in
HDFS
by
SakshiSharma
hdfs
hdfs-relationship
+1
vote
Q: What is full form of HDFS?
asked
Jul 28, 2021
in
HDFS
by
SakshiSharma
hdfs
+2
votes
Q: Which of the following is the correct representation to access ‘’Skill” from the
asked
Jun 29, 2021
in
HDFS
by
Robindeniel
skill
pig
hdfs
+1
vote
Q: Pig jobs have the same run time as the native Map Reduce jobs.
asked
Jun 29, 2021
in
HDFS
by
Robindeniel
pig-jobs
+1
vote
Q: Pig can be used for real-time data updates.
asked
Jun 29, 2021
in
HDFS
by
Robindeniel
pig
real-time
data
+2
votes
Q: Pig is good for:
asked
Jun 29, 2021
in
HDFS
by
Robindeniel
pig
hdfs
+2
votes
Q: Pig is a: choose below
asked
Jun 29, 2021
in
HDFS
by
Robindeniel
pig
hdfs
+1
vote
Q: A Map reduce job can be written in:
asked
Jun 28, 2021
in
HDFS
by
Robindeniel
map-reduce-job
+1
vote
Q: Only one distributed cache file can be used in a Map Reduce job.
asked
Jun 28, 2021
in
HDFS
by
Robindeniel
map-reduce-job
+1
vote
Q: Distributed cache files can’t be accessed in Reducer.
asked
Jun 28, 2021
in
HDFS
by
Robindeniel
distributed-cache
+1
vote
Q: Which of the following writables can be used to know value from a mapper/reducer?
asked
Jun 28, 2021
in
HDFS
by
Robindeniel
mapper
reducer
+1
vote
Q: Which of the following class is responsible for converting inputs to key-value Pairs of Map Reduce
asked
Jun 28, 2021
in
HDFS
by
Robindeniel
key-value-pairs
map-reduce
+1
vote
Q: What should be an upper limit for counters of a Map Reduce job?
asked
Jun 28, 2021
in
HDFS
by
Robindeniel
map-reduce
+1
vote
Q: Which of the following type of joins can be performed in Reduce side join operation?
asked
Jun 28, 2021
in
HDFS
by
Robindeniel
reduce-side-join
+2
votes
Q: Number of mappers is decided by the
asked
Jun 28, 2021
in
HDFS
by
Robindeniel
mappers
hdfs
+1
vote
Q: What is optimal size of a file for distributed cache?
asked
Jun 28, 2021
in
HDFS
by
Robindeniel
distributed-cache
+1
vote
Q: Counters persist the data on hard disk.
asked
Jun 28, 2021
in
HDFS
by
Robindeniel
counter
data-persist
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