[2022] Free H13-723-ENU Exam Dumps to Pass Exam Easily
H13-723-ENU Exam Dumps, H13-723-ENU Practice Test Questions
NEW QUESTION 30
The rowkey design of HBase table is a very important development and design link.
Suppose there are the following scenarios. The most frequent query scenario is based on the mobile phone number to query the historical call records every month and every six months. Which of the following rowkey designs is the best?
- A. Date + mobile phone number
- B. Mobile phone number + name
- C. Mobile number + date
- D. Name + mobile phone number
Answer: C
NEW QUESTION 31
In Kafka, is the following statement about the data sent by the Producer wrong? (multiple choice)
- A. Producer can produce data by connecting to any normal Broker instance
- B. As a message producer, Producer can directly write data to ZooKeeper
- C. Producer can send data to Broker, and can send data to Consumer
- D. Producer is responsible for producing data, Consumer is responsible for consuming data, Socket connection needs to be established between Producer and Consumer
Answer: B,C,D
NEW QUESTION 32
In FusionInsight HD, what are the data distribution methods belonging to Streaming? (multiple choice)
- A. Local Grouping
- B. Field Grouping
- C. Shuffle Grouping
- D. Direct Grouping
Answer: A,B,C,D
NEW QUESTION 33
What are the features of Streaming in FusionInsight HD? (multiple choice)
- A. Scalable
- B. High performance
- C. Stream processing
- D. High fault tolerance
Answer: A,B,C,D
NEW QUESTION 34
Which of the following scenarios is not suitable for Redis? (multiple choice)
- A. A message queue application that is consumed by multiple consumers at the same time and guarantees that the message is successfully consumed by all subscribers (subscription-notification)
- B. Counter application: for example, counting the number of people logged in to a certain website
- C. Get the latest N data: for example, get the latest 10 comments on a Weibo
- D. Complex transaction operations
Answer: A,D
NEW QUESTION 35
Regarding FusionInsight HD's Spark, which of the following programming languages can be used to develop Spark applications? (multiple choice)
- A. Java
- B. Scala
- C. Python
- D. C
Answer: A,B,C
NEW QUESTION 36
Spark Streaming can receive data from Kafka and perform calculations. The calculation results can only be stored in HDFS and cannot be written back to Kafka.
- A. False
- B. True
Answer: A
NEW QUESTION 37
Which of the following methods can generate DStream objects?
- A. StreamingContext.fileStream(...)
- B. StreamingContext.socketStream(..)
- C. KafkaUtils.createStream(...)
- D. KafkaUtils.createDirectStream(...)
Answer: A,B,C,D
NEW QUESTION 38
HDFS adopts a file access model of "write once, read many times". Therefore, it is recommended that after a file is created, written, and closed, it should not be modified.
- A. True
- B. False
Answer: A
NEW QUESTION 39
HBase filters can set column names or column values as filter conditions, and support multiple filters to be used together.
- A. True
- B. False
Answer: A
NEW QUESTION 40
In FusionInsigt HD, an application deployed on Tomcat needs to access the HBase service. In this scenario, it is recommended to use a machine-to-machine account.
- A. True
- B. False
Answer: A
NEW QUESTION 41
In FusionInsigt HD, if an application wants to complete Kerberos security authentication, which of the following options must be used? (multiple choice)
- A. jaas.conf configuration file
- B. User account applied for on FusionInsight Manager
- C. The keytab file of the user account
- D. krb5.conf configuration file
Answer: B,C,D
NEW QUESTION 42
In FusionInsight HD, assuming a topology, spout concurrency is set to 3, bolt1 concurrency is 2, bolt2 concurrency is 3, and the number of workers is 2, then how are bolt1's executors distributed among workers?
- A. One of the two workers is distributed to two
- B. Two workers each distribute one
- C. There is no fixed pattern
- D. Two workers are distributed
Answer: B
NEW QUESTION 43
Regarding the Hive service of the FusionInsight HD platform and its WebHCat development interface, which of the following descriptions is incorrect?
- A. The data format returned by WebHCat is XML
- B. You can create tables, query and other operations through WebHCat
- C. WebHCat provides external services based on HTTP and HTTPS protocols
- D. Support REST-based query request
Answer: A
NEW QUESTION 44
Which role in Yarn manages the resources (CPU/Memory) of a single node?
- A. Data Node
- B. NameNode
- C. ResourceManager
- D. NodeManager
Answer: D
NEW QUESTION 45
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