DATABASE FUNDAMENTALS
BASICS OF BIG DATA
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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ZooKeeper is a distributed co-ordination service to manage large set of hosts.
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ZooKeeper allows developers to focus on core application logic without worrying about the distributed nature of the application.
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ZooKeeper solves this issue with its simple architecture and API.
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The ZooKeeper framework was originally built at “Google” for accessing their applications in an easy and robust manner.
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Detailed explanation-1: -Explanation: The performance aspects of ZooKeeper means it can be used in large, distributed systems. 3. Which of the guarantee is provided by Zookeeper? Explanation: Once an update has been applied, it will persist from that time forward until a client overwrites the update.
Detailed explanation-2: -Explanation: Identity Service is not a service provided by ZooKeeper.
Detailed explanation-3: -create-s /myznode/xyz “x” creates a sequential node inside /myznode. The name of the znode will start with xyz followed by the running count of the current node.
Detailed explanation-4: -ZooKeeper provides a distributed configuration service, a synchronization service and a naming registry for distributed systems. Distributed applications use Zookeeper to store and mediate updates to important configuration information.