Data Ingestion with Sqoop and Flume MCQ question and answer with solution

91

Point out the wrong statement.

A) Cluster-wide status centralization service is essential for management and serialization tasks across a large distributed set of servers B) Within ZooKeeper, an application can create what is called a znode C) The znode can be updated by any node in the cluster, and any node in the cluster can register to be informed of changes to that znode D) None of the mentioned

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Answer & Solution

Answer: Option D

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92

Data in the commit log is purged after its corresponding data in the memtable is flushed to an . . . . . . . .

A) SSHables B) SSTable C) Memtables D) None of the mentioned

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Answer & Solution

Answer: Option B

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93

Cassandra uses a protocol called . . . . . . . . to discover location and state information.

A) gossip B) intergos C) goss D) all of the mentioned

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Answer & Solution

Answer: Option A

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94

Point out the correct statement.

A) Interface FieldMapping is used for mapping of field B) Interface FieldMappable is used for mapping of field C) Sqoop is nothing but NoSQL to Hadoop D) Sqoop internally uses ODBC interface so it should work with any JDBC compatible database

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Answer & Solution

Answer: Option B

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95

Tombstones exist for a configured time period defined by the . . . . . . . . value set on the table.

A) gc_grace_minutes B) gc_grace_time C) gc_grace_seconds D) gc_grace_hours

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Answer & Solution

Answer: Option C

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96

The underlying client-server protocol has changed in version . . . . . . . . of ZooKeeper.

A) 2.0.0 B) 3.0.0 C) 4.0.0 D) 6.0.0

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Answer & Solution

Answer: Option B

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97

Point out the correct statement.

A) Cassandra accommodates expensive, consumer SSDs extremely well B) Cassandra re-writes or re-reads existing data, and never overwrites the rows in place C) Cassandra uses a storage structure similar to a Log-Structured Merge Tree D) None of the mentioned

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Answer & Solution

Answer: Option C

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98

Zookeeper keep track of the cluster state such as the . . . . . . . . table location.

A) DOMAIN B) NODE C) ROOT D) All of the mentioned

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Answer & Solution

Answer: Option C

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99

. . . . . . . . text is appropriate for most non-binary data types.

A) Character B) Binary C) Delimited D) None of the mentioned

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Answer & Solution

Answer: Option C

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100

The . . . . . . . . master will register its own address in this znode at startup, making this znode the source of truth for identifying which server is the Master.

A) active B) passive C) region D) all of the mentioned

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Answer & Solution

Answer: Option A

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Data Ingestion with Sqoop and Flume MCQ question and answer with solution | Hadoop MCQs