Free H13-711_V3.0 Exam braindumps download (H13-711_V3.0 exam dumps Free)

The HDFS data reading process includes the following steps, please choose the correct order. (Drag title) Order: ECADB

After obtaining this input stream, the client calls the read method to read the data. The input stream selects the nearest DataNode to establish a connection and read data.
The client calls close. to close the input stream.
The location where the data block corresponding to this file in NameNodel is obtained by calling NameNode remotely through RPC
If the end of the data block has been reached. Then close the connection with this DataNodel, and then re-find the next data block. until all data is read.
The client calls the open method of the FileSystem instance to obtain the input stream corresponding to the file.

Answer(s): A,B,C,D,E

If HDFS is deployed with a single name node, what limitations may exist? (multiple choice)

The amount of leaf swallowing of the entire distributed file system is limited by the throughput of a single name node
It will affect the functional implementation of the upper-level components based on HDFS
The number of objects (files, blocks) that a name node can hold is limited by the size of the memory space
Failure of this unique name node will render the entire cluster unavailable

Answer(s): A,C,D

The data node is the working node of HDFS. Which of the following are its functions? (multiple choice)

Responsible for storing and reading data
Data storage and retrieval are performed according to the scheduling of the client or the name node
Records all operations for file creation, deletion, renaming, et
Periodically send the namenode a list of its own stored blocks.

Answer(s): A,B,D