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Questions by rajeshsharma
0
votes
1
answer
What are the basic interfaces of Java Collections Framework?
asked
Jul 2, 2023
in
JAVA
javacollectionsframework
0
votes
1
answer
How HashMap works in Java?
asked
Jul 2, 2023
in
JAVA
hashmap
jsppage
abstract
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synchronized
boolean
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this
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instanceof
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final
interface
static
void
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finally
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strictfp
volatile
const
float
native
super
while
0
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1
answer
What is an Java Applet?
asked
Jul 2, 2023
in
JAVA
java
applet
0
votes
1
answer
What is an Iterator?
asked
Jul 2, 2023
in
JAVA
java-iterator
0
votes
1
answer
When does an Object becomes eligible for Garbage collection in Java ?
asked
Jul 2, 2023
in
JAVA
garbagecollection
0
votes
1
answer
What is the importance of finally block in exception handling?
asked
Jul 2, 2023
in
JAVA
exceptionhandling
jsppage
abstract
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assert
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synchronized
boolean
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long
strictfp
volatile
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native
super
while
0
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1
answer
What does the “static” keyword mean? Can you override private or static method in Java?
asked
Jul 2, 2023
in
JAVA
static-keyword
jsppage
abstract
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assert
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package
synchronized
boolean
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double
implements
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instanceof
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final
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static
void
class
finally
long
strictfp
volatile
const
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native
super
while
0
votes
1
answer
What is JDBC?
asked
Jul 2, 2023
in
JAVA
jdbc
java
jsppage
abstract
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assert
default
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package
synchronized
boolean
do
if
private
this
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double
implements
protected
throw
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else
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case
enum
instanceof
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transient
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extends
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short
try
char
final
interface
static
void
class
finally
long
strictfp
volatile
const
float
native
super
while
0
votes
1
answer
What does System.gc() and Runtime.gc() methods do?
asked
Jul 2, 2023
in
JAVA
system-gc
runtime-gc
0
votes
1
answer
What are Directives?
asked
Jul 2, 2023
in
JAVA
directives
0
votes
1
answer
Can I set the number of Reducers to Zero?
asked
Jun 23, 2023
in
HDFS
reducers
0
votes
1
answer
Does Mapreduce programming model provide a way for Reducers to communicate with each other and in a Mapreduce Job can a Reducer communicate with another Reducer?
asked
Jun 23, 2023
in
HDFS
mapreduce
programmingmodel
0
votes
1
answer
How NameNode handles DataNode failures?
asked
Jun 23, 2023
in
HDFS
datanode
namenode
0
votes
1
answer
What is configuration of a typical Slave Node on Hadoop Cluster and how many Jvms run on a Slave Node?
asked
Jun 23, 2023
in
HDFS
hadoop
cluster
0
votes
1
answer
What is a task instance in Hadoop and where does it run?
asked
Jun 23, 2023
in
HDFS
hadoop
instance
0
votes
1
answer
What is a Task Tracker in Hadoop and how many instances of Task Tracker run on a Hadoop Cluster?
asked
Jun 23, 2023
in
HDFS
tasktracker
hadoop
0
votes
1
answer
How JobTracker schedules a task?
asked
Jun 23, 2023
in
HDFS
jobtrackerschedules
0
votes
1
answer
Can Hadoop be compared to Nosql Database like Cassandra?
asked
Jun 23, 2023
in
HDFS
nosql
database
cassandra
0
votes
1
answer
Why reading is done in parallel and writing is not in Hdfs?
asked
Jun 23, 2023
in
HDFS
hdfs-writing
0
votes
1
answer
Which are the two types of writes In Hdfs?
asked
Jun 23, 2023
in
HDFS
hdfs-writes
0
votes
1
answer
Is a Job split into maps?
asked
Jun 23, 2023
in
HDFS
maps
hdfs
0
votes
1
answer
Why are the number of splits equal to the number of Maps?
asked
Jun 23, 2023
in
HDFS
maps
hdfs
0
votes
1
answer
Do we require two servers for the NameNode and the DataNodes?
asked
Jun 23, 2023
in
HDFS
namenode
datanodes
0
votes
1
answer
What is the difference between Gen1 and Gen2 Hadoop with regards to the NameNode?
asked
Jun 23, 2023
in
HDFS
hadoop
namenode
0
votes
1
answer
What if Rack 2 and DataNode fails?
asked
Jun 23, 2023
in
HDFS
hdfs
v
0
votes
1
answer
Do we need to place 2nd and 3rd Data in Rack 2 only?
asked
Jun 23, 2023
in
HDFS
hdfs
0
votes
1
answer
On what basis Data will be stored on a Rack?
asked
Jun 22, 2023
in
HDFS
rack-data
hdfs
0
votes
1
answer
What is a Rack?
asked
Jun 22, 2023
in
HDFS
rack
hdfs
0
votes
1
answer
Is client the end user in Hdfs?
asked
Jun 22, 2023
in
HDFS
hdfs
client-hdfs
0
votes
1
answer
Who is a user in Hdfs?
asked
Jun 22, 2023
in
HDFS
hdfs
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