DATABASE FUNDAMENTALS
CLOUD COMPUTING AND DATABASES
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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master-worker
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master-slave
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worker/slave
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worker/master
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Detailed explanation-1: -HDFS works in a Master –Slave fashion.In which it have one master node that is known as Name data(It manage the whole system), no of slave mode is known as Data nodes. HDFS is fault tolerant and useful to design at low cost Hardware.
Detailed explanation-2: -HDFS divides files into blocks and stores each block on a DataNode. Multiple DataNodes are linked to the cluster. The NameNode then distributes replicas of these data blocks across the cluster. It also instructs the user or application where to locate wanted information.
Detailed explanation-3: -3. HDFS – Hadoop Distributed File System.
Detailed explanation-4: -Q 2-What is are true about HDFS? A-HDFS filesystem can be mounted on a local client’s Filesystem using NFS. B-HDFS filesystem can never be mounted on a local client’s Filesystem. C-You can edit a existing record in HDFS file which is already mounted using NFS.
Detailed explanation-5: -HDFS has a master/slave architecture. An HDFS cluster consists of a single NameNode, a master server that manages the file system namespace and regulates access to files by clients.