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Explain HDFS’s Block and Block Scanner.
A block is the smallest data file component. Hadoop automatically divides large files into small workable segments. On the flip side, the Block Scanner verifies a DataNode's list of blocks.
A block is the smallest data file component. Hadoop automatically divides large files into small workable segments. On the flip side, the Block Scanner verifies a DataNode’s list of blocks.
See lessExpand on HDFS.
HDFS stands for Hadoop Distributed File System. This file system handles extensive data collection and runs on commodity hardware, i.e., inexpensive computer systems.
HDFS stands for Hadoop Distributed File System. This file system handles extensive data collection and runs on commodity hardware, i.e., inexpensive computer systems.
See lessDescribe streaming in Hadoop.
Streaming enables the construction of maps and reduces jobs and the submission of those jobs to a particular cluster.
Streaming enables the construction of maps and reduces jobs and the submission of those jobs to a particular cluster.
See lessDescribe NameNode.
NameNode serves as the HDFS (Hadoop Data File System) main hub. It keeps track of different files across clusters and maintains HDFS data. However, NameNode does not store the actual data — DataNodes store it.
NameNode serves as the HDFS (Hadoop Data File System) main hub. It keeps track of different files across clusters and maintains HDFS data. However, NameNode does not store the actual data — DataNodes store it.
See lessExplain data engineering.
Data engineering is the process of building, testing, and maintaining database structures to analyze data on a large scale. Data engineering helps to turn this unstructured data into usable business insights.
Data engineering is the process of building, testing, and maintaining database structures to analyze data on a large scale. Data engineering helps to turn this unstructured data into usable business insights.
See lessHow does data modeling work?
Data modeling is a technique for making complex software architecture accessible. Conceptual illustrations show the connections between distinct data objects and the rules.
Data modeling is a technique for making complex software architecture accessible. Conceptual illustrations show the connections between distinct data objects and the rules.
See lessWhat do you understand by exploratory testing?
Exploratory testing refers to the approach of software testing involving less planning and more test execution. The planning in exploratory testing includes creating a test charter that defines: The scope of a short time-boxed test effort, The objectives, and The testing approaches
Exploratory testing refers to the approach of software testing involving less planning and more test execution. The planning in exploratory testing includes creating a test charter that defines:
- The scope of a short time-boxed test effort,
- The objectives, and
- The testing approaches
See lessCan you name parameters that give out the efficiency of automation testing?
We can use the following for assessing the efficiency of automation testing: Defect detection ratio. Execution time. Time is taken to release the product. The degree of labor and cost reduction.
We can use the following for assessing the efficiency of automation testing:
- Defect detection ratio.
- Execution time.
- Time is taken to release the product.
- The degree of labor and cost reduction.
See lessWhat test cases can we automate?
We can automate the following test cases: Complex calculation, Data-driven, Non-functional, Regression, and Smoke.
We can automate the following test cases:
- Complex calculation,
- Data-driven,
- Non-functional,
- Regression, and
- Smoke.
See lessPlease enlist the various basic components of the defect report format?
Following are the various basic components of the defect report format: Defect detected by. Defect detected on. Defect ID and Name. Defect resolved by. Defect resolved on. Module Name. Priority and Severity status. Project Name. Defect Snapshot.
Following are the various basic components of the defect report format:
- Defect detected by.
- Defect detected on.
- Defect ID and Name.
- Defect resolved by.
- Defect resolved on.
- Module Name.
- Priority and Severity status.
- Project Name.
- Defect Snapshot.
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