[amp_mcq option1=”manage file system namespace” option2=”it is responsible for storing actual data” option3=”perform read-write operation as per request for the clients” option4=”none of the above” correct=”option1″]<\/p>\n
The correct answer is A.<\/p>\n
The NameNode is the master server in a Hadoop Distributed File System (HDFS). It manages the file system namespace and regulates access to files by clients. It does not store actual data, which is stored in DataNodes. It also does not perform read-write operations on behalf of clients.<\/p>\n
The NameNode is a critical component of HDFS and its failure can cause the entire system to become unavailable. It is typically deployed on a highly available cluster of machines to ensure that it is always available.<\/p>\n
Here is a brief explanation of each option:<\/p>\n
[amp_mcq option1=”manage file system namespace” option2=”it is responsible for storing actual data” option3=”perform read-write operation as per request for the clients” option4=”none of the above” correct=”option1″]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[728],"tags":[],"class_list":["post-48255","post","type-post","status-publish","format-standard","hentry","category-cloud-computing","no-featured-image-padding"],"yoast_head":"\n