Huawei HCIA-Big Data(Huawei Certified ICT Associate-Big Data)

QUESTION NO: 1
RDD has Transformation and Action operators. Which of the following belongs to the Action operator?

A. reduceByKey B. filter C. saveAsTextFile D. map

Correct Answer: C

QUESTION NO: 2
When the size of a Region gradually increases in HBase, it may be pruned.

A. True B. False

Correct Answer: B

QUESTION NO: 3
When the client writes data to any Zookeeper node, Zookeeper needs to fully synchronize the data to other nodes before it can return to the client that the write is successful.

A. True B. False

Correct Answer: B

QUESTION NO: 4
"Group by" in Hive refers to dividing each data set into several small data sets through certain rules, and then grouping data for several small data sets

A. True B. False

Correct Answer: A

QUESTION NO: 5
What interfaces does Fusioninsight Manager support when connecting with external platforms? (Multiple choice)

A. BGP B. SNMP C. Syslog D. VPN

Correct Answer: B,C

QUESTION NO: 6
Flume is used to collect data, and the basic unit of data transmitted by the device is?

A. Split B. Block C. Packet D. Event

Correct Answer: D

QUESTION NO: 7
Which statement about HIVE is wrong?

A. The Hive query operation process strictly follows the Hadoop MapReduce role execution model. Hive converts the user's HiveQL statement to the MapReduce Hadoop cluster through the interpreter. B. The best usage scenario of Hive is the batch processing job of large data sets C. Hive can realize low-latency and fast query on large-scale data sets D. Hive is built on Hadoop based on static batch processing. Hadoop usually has high latency and requires a lot of overhead when submitting and scheduling

Correct Answer: C

QUESTION NO: 8
Regarding the task selection of the capacity scheduler, which of the following statements is correct? (Multiple choice)

A. Resource reclamation request queue priority B. Minimum queue level first C. Maximum queue level priority D. The queue with the lowest resource utilization is given priority

Correct Answer: A,B,D

QUESTION NO: 9
Hadoop's HDFS is a distributed file system, which of the following application scenarios is suitable for data storage and management? (Multiple choice)

A. Low latency read B. Streaming data access C. High capacity, high throughput D. Large number of small file storage

Correct Answer: B,C

QUESTION NO: 10
Which of the following nodes in HDFS is the ZKFC process deployed on? (Multiple choice)

A. All of the above are wrong B. DataNodes C. Standby NameNode D. Active NameNode

Correct Answer: C,D

QUESTION NO: 11
Which of the following commands can be used to create node data?

A. get /node B. create /node C. ls/node D. set/node data

Correct Answer: B

QUESTION NO: 12
Which of the following services provided by Zookeeper does Streaming implement event listening?

A. Checkpoint B. Distributed detection mechanism C. Watcher D. ACK

Correct Answer: C

QUESTION NO: 13
When a MapReduce task fails, the task can be recalculated through the retry mechanism.

A. True B. False

Correct Answer: A

QUESTION NO: 14
FLINK uses the checkpoint mechanism to ensure the fault tolerance of the application program.

A. True B. False

Correct Answer: A

Huawei HCIA-Big Data(Huawei Certified ICT Associate-Big Data) - H13-711-ENU Exam Questions