Huawei H13-711_V3 0-ENU Exam Training Guides

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Full version: H13-711_V3.0-ENU Exam Dumps Questions
1. Normally, tables stored in text files in Hive use carriage returns as their line separators. In Huawei
Fusioninsight Hive, you can specify the input and output format processing classes for table data.
A. True
B. wrong
Answer: A
2. Redis judges whether a key exists using the exist command.
A. True
B. False
Answer: A
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3. In the flume architecture, a Source can connect to multiple channels.
A. True
B. False
Answer: A
4. When using the configuration planning tool to plan a Fusioninsight HD V100R002C50 cluster, you
can use the configuration planning tool of the V100R2002C60 version for planning.
A. True
B. False
Answer: B
5. When using HBase for data reading service in Fusioninsight HD, it is necessary to connect to
HMaster.
A. True
B. False
Answer: B
6.Huawei has rich experience in big data solutions in various industries such as finance, public
security, railways, and government affairs
A. True
B. False
Answer: A
7. In Hive, which of the following descriptions about bucketing is correct? (Multiple choice)
A. Data can put different data into different buckets according to the way of buckets
B. Bucket cannot be sorted
C. The advantage of bucketing is that it can obtain higher query processing efficiency and make
sampling more efficient
D. You can specify the number of buckets when creating a table
Answer: ACD
8. In the task scheduling of YARN. Once the Application Master applies for resources, it
communicates with the corresponding Resource Manager and asks it to start the task
A. True
B. False
Answer: B
9. When the Client of HDFS writes a file, the writing position of the first copy of the data is determined
by the NameNode, and the writing position of other copies is determined by the Data Node.
A. True
B. False
Answer: B
10. Hardware failure is considered normal. In order to solve this problem, HDFS designed a copy
mechanism. By default, for a file, HDFS will save () copies?
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A.1
B.2
C.3
D.4
Answer: C
11. The Streaming of Fusioninsight HD is weakly dependent on Zookeeper, even if Zookeeper fails,
Streaming can provide services normally.
A. True
B. False
Answer: B
12. Kerberos can only provide security authentication for services in the cluster.
A. True
B. False
Answer: B
13. Which module in Hadoop is responsible for HDFS data storage?
A. NameNode
B. Data Node
C. ZooKeeper
D. Job Traoker
Answer: B
14. Which statement about HIVE is wrong?
A. The best usage scenario of Hive is the batch processing job of large data sets
B. Hive can realize low-latency and fast query on large-scale data sets
C. 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
D. 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.
Answer: B
15.What services can Huawei DWS provide to customers? (Multiple choice)
A. Support GDS tools to speed up data storage
B. Ensuring high reliability of data and systems
C. Response in seconds for trillions of data association analysis
D. Unified Management Console
Answer: ABCD
16.The Fusionlnsight HD cluster contains many kinds of services, and each service is composed of
several roles. Which of the following are the roles of the service? (Multiple choice)
A. HDFS
B. NameNode
C. DataNodes
D. HBase
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Answer: BC
17. It is used to record the reading position of the message in Kafka ().
Answer: log files
18. Assume that HDFS only saves 2 copies when writing data. Then during the writing process,
HDFS Client first writes data to DataNode1 and then writes data to DataNode2. ()
A. True
B. False
Answer: B
19. Existing server.channels=ch1, set the Channel type to File Channel, which of the following
configurations is correct?
A. server.channels.ch1.type = file
B. server.channels.ch1.type = memory
C. server.channels.type = memory
D. server.channels.type = file
Answer: A
20. Which of the following descriptions about the characteristics of big data and traditional database
data is wrong?
A. Big data is the data processing of "fish in the pond", with a clear goal; the data processing of
traditional databases is to judge whether other kinds of "fish" exist through certain "fish"
B. There are many types of data processed by big data, including structured, unstructured and semi-
structured data; the types of data in traditional databases are relatively single, often structured data
C. In big data, there is no unified data tool, that is, "No size fits all"; in traditional databases, in a
specific business scenario, often one tool can solve a problem, that is, "One size fits all" all"
D. The data scale of big data is very large, and TB and PB are generally used as data processing
units; the data scale in traditional databases is generally small, and MB is often used as data
processing units
Answer: A
21. In the Mapreduce process, by default, a fragment is a block and a mapTask.
A. True
B. False
Answer: A
22. Among the following options, which one is correct about the meaning of Zookeeper reliability?
A. Reliability is achieved through active and standby deployment
B. Reliability means that the update can only succeed or fail, there is no intermediate state
C. Reliability means that no matter which server displays the same view to the outside world
D. Reliability means that a message received by a Server will be accepted by all Servers
Answer: D
23. In the MRS cluster, which of the following components does Spark mainly interact with?
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A. Zookeeper
B. Yarin
C. Hive
D. HDFS
Answer: A
24. The Hadoop-based open source big data platform mainly provides distributed computing and
storage capabilities for data. Which of the following are distributed storage components? (Multiple
choice)
A.MR
B. Spark
C.HDFS
D. HBase
Answer: CD
25. Which of the following descriptions about the characteristics of Zookeeper is wrong?
A. Updates sent by the client are applied in the order they were sent
B. If a message is received by more than half of the servers, it will be successfully written to the disk
C. Message updates can only succeed or fail, there is no intermediate state
D. The number of Zookeeper nodes must be an odd number
Answer: D
26. Which module is responsible for storing Fusioninsight Manager user data?
A. CAS
B. AOS
C. Kerberos
D. LDAP
Answer: D.
27. Synchronize data between partition replication in Kafka. Copying data from the leader of the
partition to the follower requires a thread (replicationFetcherThread), and the follower (a follower is
equivalent to a consumer) actively pulls messages from the leader in batches, which greatly improves
the throughput.
A. True
B. False
Answer: A
28. On the Fusioninsight HD platform, HBase does not currently support secondary indexes.
A. True
B. False
Answer: B
29. What are the correct understandings and descriptions of the main characteristics of big data?
(Multiple choice)
A. There are many data sources and formats
B. Fast datagrowth and fast processing
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C. A large amount of data and a large amount of calculation
D. Data value density is low, but value is high
Answer: ABCD
30.Flink is a computing framework combining batch processing and stream processing. Its core is a
stream data processing engine for data classification and parallel computing.
A. True
B. False
Answer: A
31. Which of the following options belong to Fusioninsight data security? (Multiple choice)
A. Operating system security hardening
B. Component Data Encryption
C. Data integrity check
D. User rights authentication management
Answer: BC
32.Huawei Fusioninsight HD is the first big data platform in China that complies with the national
financial level protection. What are the following aspects of its security?
A. System Security
B. Authority authentication
C. Data Security
D. All of the above are correct
Answer: D
33. Which of the following statements about CarbonData in Fusioninsight is correct? (Multiple choice)
A. Carbon is also a high-performance analysis engine that integrates data sources with spark.
B. Carbon uses a combination of lightweight compression and heavyweight compression to compress
data, which can reduce data storage space by 60%-80%, greatly saving hardware storage costs.
C. carbon is a new Apache Hadoop native file format that uses advanced columnar storage, indexing,
compression, and encoding technologies to improve computing efficiency, helping to accelerate data
queries exceeding the order of magnitude of PB, and can be used for faster interactions Inquire.
D. The purpose of using carbon is to provide ultra-fast response to big data ad hoc queries.
Answer: ABCD
34. A typical Kafka cluster includes several Producers, several Brokers, several Consumers and a
ZooKeeper cluster.
A. True
B. False
Answer: A
35. Which of the following belongs to DDL (data definition language) in Hive SQL? (Multiple choice)
A. Amendment table
B. Drop table
C. Create a table
D. Data import
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Answer: ABC
36. The SoIrCloud mode is a cluster mode. In this mode, the Solr server is strongly dependent on
which of the following services?
A. HBase
B. HDFS
C. ZooKeeper
D.YARN
Answer: C
37. What does Fusioninsight HD HBase use by default as its underlying file storage system?
A. HDFS
B. Hadoop
C. Memory
D. MapReduce
Answer: A
38. In the process of using Flume to transmit data, in order to prevent data loss due to the restart of
the Flume process, which of the following Channel types can be used? (Multiple choice)
A. Memory Channel
B. JDBC Channel
C. File Channel
D.HDFS Channel
Answer: BC
39. Which of the following data sources can exchange data with Fusioninsight HD through the loader?
(Multiple choice)
A. MySQL
B. NoSQL
C. FTP Server
D. SFTP Server
Answer: ABCD
40. Commands in Redis are case sensitive.
A. True
B. False
Answer: B
41. The overall process of kafka Consumer writing data is that the Consumer connects to the Leader
Broker where the specified Topic Partition is located, and uses it to actively obtain messages from
Kafka.
A. True
B. False
Answer: A
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42.Spark on YARN-client is suitable for production environments because you can see the output of
APP faster.
A. True
B. False
Answer: B
43. Hive is a hadoop-based data warehouse software that can query and manage PB-level distributed
data.
Which of the following descriptions about Hive features is wrong?
A. Only supports MapReduce computing engine
B. Easy to use and easy to program
C. Can directly access HDFS files and HBase
D. Flexible and convenient ETL (extract/transform/load)
Answer: A
44. In the Fusioninsight product, which of the following descriptions about the kafka topic is wrong?
A. Each Topic can only be divided into one partition (area)
B. The number of partitions of Topic can be configured at the time of creation
C. The storage level of each Partition corresponds to a log file, and all information data is recorded in
the log file
D. Each message published to Kafka has a category. This category is called Topic, which can also be
understood as a queue for storing messages.
Answer: A
45. Tez is a distributed computing frame that supports directed acyclic graphs. When Hive uses the
Tez engine for data analysis, it will parse the HQL statement submitted by the user into the
corresponding Tez task and submit it to Tez for execution.
A. True
B. False
Answer: A
46. Which of the following descriptions about Kafka partition offset is wrong?
A. Consumers track records through (offset, partition, topic)
B. Uniquely mark a message
C. offset is a string of type String
D. The position of each message in the file is called offset (offset)
Answer: C
47. On the Fusioninsight Manager interface, when a Kafka disk capacity insufficient alarm is received,
and the cause of the alarm has been ruled out as a hard disk hardware failure, the system
administrator needs to consider expanding the capacity to solve this problem
A. True
B. wrong
Answer: A
48.In the HDFS federated environment, which of the following contents does NameSpace contain?
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(Multiple choice)
A. Contents
B. Documentation
c. block
D. None of the above is correct
Answer: ABC
49. When viewing the partition details of a topic in Kafka, which of the following commands should be
used?
A. bin/kafka-topic.sh -create
B. bin/kafka-topic.sh -list
C. bin/kafka-topic.sh -describe
D. bin/kafka-topic.sh -delete
Answer: C
50. In the WebHCat architecture, which of the following operations can users perform through the
secure HTTPS protocol?
A. Execute Hive DDL operations
B. Running MapReduce tasks
C. Run the Hive HQL task
D. All of the above are correct
Answer: D
51. The reliability of flume transmission data means that in the process of data transmission, flume
can automatically switch to another path to continue transmission when the next flume node fails or
the data reception is abnormal.
A. True
B. False
Answer: A
52. Which way is the correct way to load data into the Hive table? (Multiple choice)
A. Load the file in the local path directly into the Hive table.
B. Hive supports the method of insert into a single record, so you can insert a single record directly on
the command line
C. Insert the result sets of other tables into the Hive table.
D. Load the files on HDFS into the Hive table.
Answer: ACD
53.What processes does the HBase service of Fusioninsight HD contain? (Multiple choice)
A. HMaster
B. Slave
C. HRegionServer
D. Data Node
Answer: AC
54. Which of the following are extensions of ElasticSearch? (Multiple choice)
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A. hadoop
B. head
C. bigdesk
D. IKAnalyzer
Answer: ABCD
55. The Fusionlnsight HD management node provides a dual-node HA mechanism. After the primary
node fails, the primary and backup nodes need to manually implement Failover.
A. True
B. False
Answer: B
56.Channel supports transactions, provides weak order guarantees, and can connect any number of
Sources and Sinks.
A. True
B. False
Answer: A
57. In the MRS platform, which component does the Flume data flow not need to pass through in the
node?
A. Sink
B. Channel
C. Topic
D. Source
Answer: C
58. In the operation process of Flink, the role responsible for applying for resources is?
A. Resource Manager
B. Job Manager
C. Client
D. Task Manager
Answer: B
59. Hive does not retrieve whether the data conforms to the schema during load. Hive follows the
schema on read (read mode). Only when the mode is read, the Hive data field schema is checked.
A. True
B. False
Answer: A
60. Provide enterprise-level metadata management under the DGC platform architecture. Data asset
management is visualized and supports drilling and traceability. Through the data map, which module
can realize the data lineage and data panorama visualization of data assets, and providedata
intelligent search and operation monitoring?
A. Data development
B. Data asset management
C. Specification design
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D. Data Integration
Answer: B
61. In the Fusioninsight Hadoop cluster, through df-hT query on a certain node, the partitions seen
include the following:
/var/log
/srv/BigData
/srv/BigData/hadoop/data5
/srv/BigData/solr/solrserver3
/srv/BigData/dbdataom
What is the planning combination of the optimal Raid level for the disks corresponding to these
partitions?
A. Raid0 Raid1 Raid0 Non-Raid1
B. Raid1 Raid1 Non-Raid Non-Raid Raid1
C. Raid0 Raid0 Raid0 Raid0 Raid0
D. Non-Raid Non-Raid Non-Raid Non-Raid Raid1
Answer: B
62. Which of the following statements about the comparison between Sparkstreaming and Streaming
is wrong?
A. SparkStreaming is a micro-batch processing framework, and events need to be processed when
they are exhausted to a certain amount
B. The execution logic of Streaming is to start immediately and recycle after running
C. The throughput of SparkStreaming is about 2-5 times that of Streaming
D. SparkStreaming event processing delay is higher than Streaming
Answer: B
63. KrbServer can provide kerberos functions for other components, which are used to prevent
eavesdropping, prevent replay attacks, and protect data integrity.
A. True
B. False
Answer: A
64. The main difference between YARN-client and YARN-cluster is the difference between the
Application Master process.
A. True
B. False
Answer: A
65.What are the types of data node znodes in Zookeeper? (Multiple choice)
A. semi-persistent
B. ephemeral
C. temporary
D. persistent
Answer: BD
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66. In Fusioninsight HD, which of the following is not a Hive flow control feature? (Multiple choice)
A. Support threshold control on the total number of established connections
B. Support threshold control on the number of connections established by each user
C. Support threshold control on the number of connections established by a specific user
D. Support threshold control on the number of connections established per unit time
Answer: ABD
67. Among the following options, which one is a key feature of the HDFS architecture? (Multiple
choice)
A. Robust mechanisms
B. Multimodal Access Mechanisms
C. HA high reliability
D. Metadata persistence mechanism
Answer: ABCD
68. Which of the following descriptions about the characteristics of the Kafka Partition copy is correct?
A. Follower synchronizes data from Leader by pulling
B. The master copy is called Leader, and the slave copy is called Follower
C. Both consumers and producers read and write data from the Leader, and can also directly interact
with the Follower
D. Replicas are in units of partitions. Each partition has its own slave copy of the master copy
Answer: ABD
69. What is the file format of data storage in HBase?
A. HFile
B. HLog
C. TextFile
D. SequenceFile
Answer: A
70. What is the unit of data scale for traditional data processing?
A. TB
B. EB
C.PB
D. GB
Answer: D
71. From the point of view of the life cycle, what are the main stages of data? (Multiple choice)
A. Data collection
B. Data Storage
C. Data management
D. Data Analysis
E. Data Presentation
Answer: ABCD
72. A user needs to build a 350-node FusionInsight HD cluster, which planning scheme is the best?
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A. Deployment of management nodes, control nodes, and data nodes in one, Layer 2 networking
B. Integrated deployment of management nodes and control nodes, independent deployment of data
nodes, and Layer 2 networking
C. Management nodes, control nodes, and data nodes are deployed independently, three-tier
networking
D. Integrated deployment of management nodes and data nodes, independent deployment of control
nodes, and Layer 2 networking
Answer: C
73. FusionInsight HD uses the Hbase client to write 10 pieces of data in batches. A certain
HRegionServer node contains two Regions of the table, namely A and B. Among the 10 pieces of
data, 6 pieces belong to A and 4 pieces belong to B. Excuse me. How many RPC requests need to
be sent to HRegionServer to write these 10 pieces of data?
A.2
B.1
C.6
D.10
Answer: B
74. In the Fusionlnsight cluster, which of the following components does Spark mainly interact with?
(Multiple choice)
A. Hive
B. YARN
C.HDFS
D. Zookeeper
Answer: ABCD
75. Which of the following are the characteristics of ElasticSearch? (Multiple choice)
A. High scalability
B. High fault tolerance
C. High reliability
D. high performance
Answer: ABCD
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