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HDFS Interview Questions and Answers
Home
Questions
HDFS
0
votes
Q: What are the Job Resource files?
asked
Jun 20, 2023
in
HDFS
by
Robin
job
resource
files
0
votes
Q: How much Hadoop allows maximum block size and minimum block size?
asked
Jun 20, 2023
in
HDFS
by
Robin
maximum
block
size
0
votes
Q: What is Issplitable()?
asked
Jun 20, 2023
in
HDFS
by
Robin
issplitable
hdfs
0
votes
Q: If I am change block size from 64 to 128?
asked
Jun 20, 2023
in
HDFS
by
Robin
block
size
0
votes
Q: Why Hadoop Framework reads a file parallel why not sequential?
asked
Jun 20, 2023
in
HDFS
by
Robin
sequential
hadoop
framework
0
votes
Q: What is difference between block And split?
asked
Jun 20, 2023
in
HDFS
by
Robin
block
split
hdfs
0
votes
Q: How much ram required to process 64mb data?
asked
Jun 18, 2023
in
HDFS
by
Robindeniel
64mb
data
0
votes
Q: How to configure the split value?
asked
Jun 18, 2023
in
HDFS
by
Robindeniel
split
value
0
votes
Q: What is Inputsplit?
asked
Jun 18, 2023
in
HDFS
by
Robindeniel
inputsplit
0
votes
Q: How many Mappers and Reducers can run?
asked
Jun 18, 2023
in
HDFS
by
Robindeniel
reducersrun
0
votes
Q: Why Jobclient and Job Tracker submits job resources to file system?
asked
Jun 18, 2023
in
HDFS
by
Robindeniel
jobclient
0
votes
Q: Why task Tracker launch child Jvm?
asked
Jun 18, 2023
in
HDFS
by
Robindeniel
task
tracker
launch
child
jvm
0
votes
Q: Can you elaborate Mapreduce Job architecture?
asked
Jun 18, 2023
in
HDFS
by
Robindeniel
mapreduce
job
architecture
0
votes
Q: What are the important steps when you are partitioning table?
asked
Jun 18, 2023
in
HDFS
by
Robindeniel
partitioning
table
0
votes
Q: When we goes to Partition?
asked
Jun 18, 2023
in
HDFS
by
Robindeniel
hdfs-partition
0
votes
Q: What is partition?
asked
Jun 18, 2023
in
HDFS
by
Robindeniel
partitionhdfs
0
votes
Q: When we are goes to Combiner?
asked
Jun 18, 2023
in
HDFS
by
Robindeniel
combiner
hdfs
0
votes
Q: How will you empty the trash in HDFS?
asked
Dec 21, 2022
in
HDFS
by
Robin
hdfs
trash
0
votes
Q: What are the advantages of a block transfer?
asked
Dec 21, 2022
in
HDFS
by
Robin
block-transfer
0
votes
Q: How will you manually enter and leave Safe Mode in Hadoop?
asked
Dec 21, 2022
in
HDFS
by
Robin
safe-mode
hadoop
0
votes
Q: What do you understand by Safe Mode in Hadoop?
asked
Dec 21, 2022
in
HDFS
by
Robin
safe-mode
hadoop
0
votes
Q: How will you reduce the size of large cluster by removing a few nodes?
asked
Dec 21, 2022
in
HDFS
by
Robin
large-file
datanode
0
votes
Q: If a DataNode is marked as decommissioned, can it be chosen for replica placement?
asked
Dec 21, 2022
in
HDFS
by
Robin
replica-placement
hdfs-datanode
0
votes
Q: How will you balance the disk space usage on a HDFS cluster?
asked
Dec 21, 2022
in
HDFS
by
Robin
hdfs-cluster
0
votes
Q: What do you understand by Active and Passive NameNodes?
asked
Dec 21, 2022
in
HDFS
by
Robin
active-nodes
passive-namenodes
+1
vote
Q: Can you create multiple files in HDFS with varying block sizes?
asked
Dec 21, 2022
in
HDFS
by
Robin
hdfs
block-size
0
votes
Q: Are Job Tracker and Task Tracker present on the same machine?
asked
Dec 21, 2022
in
HDFS
by
Robin
job-tracker
hdfs
0
votes
Q: How will you copy a huge file of size 80GB into HDFS parallelly?
asked
Dec 21, 2022
in
HDFS
by
Robin
hdfs-file-copy
0
votes
Q: How will you compare two HDFS files?
asked
Dec 21, 2022
in
HDFS
by
Robin
hdfsfiles
0
votes
Q: Data is replicated at least thrice on HDFS. Does it imply that any alterations or calculations done on one copy of the data will be reflected in the other two copies also?
asked
Dec 21, 2022
in
HDFS
by
Robin
hdfs-replication
hdfs-data
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