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_________________ property allow users to override the expiry time specified.
(a) hcat.desired.partition.num.splits
(b) hcatalog.hive.client.cache.expiry.time
(c) hcatalog.hive.client.cache.disabled
(d) hcat.append.limit
Correct answer is (b) hcatalog.hive.client.cache.expiry.timeThe best explanation: This property is an int, and specifies number of seconds.
Correct answer is (b) hcatalog.hive.client.cache.expiry.time
The best explanation: This property is an int, and specifies number of seconds.
See less________ is a columnar storage format for Hadoop.
(a) MRQL
(b) NiFi
(c) OpenAz
(d) Parquet
Right choice is (d) ParquetThe explanation is: NiFi is a dataflow system based on the concepts of flow-based programming.
Right choice is (d) Parquet
The explanation is: NiFi is a dataflow system based on the concepts of flow-based programming.
See lessAvro is said to be the future _______ layer of Hadoop.
(a) RMC
(b) RPC
(c) RDC
(d) All of the mentioned
Right answer is (b) RPCThe best I can explain: When Avro is used in RPC, the client and server exchange schemas in the connection handshake.
Right answer is (b) RPC
The best I can explain: When Avro is used in RPC, the client and server exchange schemas in the connection handshake.
See lessApache Hadoop Development Tools is an effort undergoing incubation at _________
(a) ADF
(b) ASF
(c) HCC
(d) AFS
Right answer is (b) ASFThe explanation is: The Apache Software Foundation(ASF) is sponsored by the Apache Incubator PMC.
Right answer is (b) ASF
The explanation is: The Apache Software Foundation(ASF) is sponsored by the Apache Incubator PMC.
See lessMany people use Kafka as a replacement for a ___________ solution.
(a) log aggregation
(b) compaction
(c) collection
(d) all of the mentioned
Correct answer is (a) log aggregationBest explanation: Log aggregation typically collects physical log files off servers and puts them in a central place.
Correct answer is (a) log aggregation
Best explanation: Log aggregation typically collects physical log files off servers and puts them in a central place.
See lessA recurring workflow is used for purging expired data on __________ cluster.
(a) Primary
(b) Secondary
(c) BCP
(d) None of the mentioned
The correct option is (a) PrimaryThe explanation is: Falcon provides retention workflow for each cluster based on the defined policy.
The correct option is (a) Primary
The explanation is: Falcon provides retention workflow for each cluster based on the defined policy.
See lessApache Knox Eliminates _______ edge node risks.
(a) SSL
(b) SSO
(c) SSH
(d) All of the mentioned
Right answer is (c) SSHThe explanation: Knox hides Network Topology.
Right answer is (c) SSH
The explanation: Knox hides Network Topology.
See lessDuring the execution of a streaming job, the names of the _______ parameters are transformed.
(a) vmap
(b) mapvim
(c) mapreduce
(d) mapred
Right answer is (d) mapredFor explanation: To get the values in a streaming job’s mapper/reducer use the parameter names with the underscores.
Right answer is (d) mapred
For explanation: To get the values in a streaming job’s mapper/reducer use the parameter names with the underscores.
See lessThe _____________ allows external processes to watch the stream of chunks passing through the collector.
(a) LocalWriter
(b) SeqFileWriter
(c) SocketTeeWriter
(d) All of the mentioned
Right choice is (c) SocketTeeWriterExplanation: SocketTeeWriter listens on a port (specified by conf option chukwaCollector.tee.port, defaulting to 9094.)
Right choice is (c) SocketTeeWriter
Explanation: SocketTeeWriter listens on a port (specified by conf option chukwaCollector.tee.port, defaulting to 9094.)
See lessThe EC2 can serve as a practically unlimited set of ___________ machines.
(a) virtual
(b) real
(c) distributed
(d) all of the mentioned
Correct option is (a) virtualExplanation: To use the EC2, a subscriber creates an Amazon Machine Image (AMI) containing the operating system, application programs and configuration settings.
Correct option is (a) virtual
Explanation: To use the EC2, a subscriber creates an Amazon Machine Image (AMI) containing the operating system, application programs and configuration settings.
See less