Which of the following is not a services provided by ZooKeeper?
Identity Service
Well Done. Your Answer is Correct Keep it Up! Explanation: Identity Service is not a service provided by ZooKeeper.
Naming service
Leader election
Cluster management
Category: Hadoop Zookeeper
How many types of special znodes are present in Zookeeper?
How many types of special znodes are present in Zookeeper?
3
Well Done. Your Answer is Correct Keep it Up! Explanation: There are two special types of znode: sequential and ephemeral.
2
4
5
You need to have _________ installed before running ZooKeeper.
You need to have _________ installed before running ZooKeeper.
Java
Well Done. Your Answer is Correct Keep it Up! Explanation: Client bindings are available in several other languages.
C
C++
Python
Which of the following is correct challenges that are faced by distributed applications?
Which of the following is correct challenges that are faced by distributed applications?
Both Options are Correct
Well Done. Your Answer is Correct Keep it Up! Explanation: Race condition, Deadlock and Inconsistency are the correct challenges of distributed applications.
Deadlock
Race condition
None of the Option is Correct
Helprace is using ZooKeeper on a _______ cluster in conjunction with Hadoop and HBase.
Helprace is using ZooKeeper on a _______ cluster in conjunction with Hadoop and HBase.
3-node
Well Done. Your Answer is Correct Keep it Up! Explanation: Zookeeper is used to manage a system build out of hadoop, katta, oracle batch jobs and a web component.
2-node
5-node
4-node
Point out the wrong statement.
Point out the wrong statement.
None of the Option is Correct
Well Done. Your Answer is Correct Keep it Up! Explanation: ZooKeeper provides an infrastructure for cross-node synchronization and can be used by applications to ensure that tasks across the cluster are serialized or synchronized.
Cluster-wide status centralization service is essential for management and serialization tasks across a large distributed set of servers
Within ZooKeeper, an application can create what is called a znode
The znode can be updated by any node in the cluster, and any node in the cluster can register to be informed of changes to that znode
The underlying client-server protocol has changed in version _______ of ZooKeeper.
The underlying client-server protocol has changed in version _______ of ZooKeeper.
3.0.0
Well Done. Your Answer is Correct Keep it Up! Explanation: Old pre-3.0.0 clients are not guaranteed to operate against upgraded 3.0.0 servers and vice-versa.
3.1.0
3.1.1
4.0.0
ZooKeeper itself is intended to be replicated over a sets of hosts called ____________.
ZooKeeper itself is intended to be replicated over a sets of hosts called ____________.
ensemble
Well Done. Your Answer is Correct Keep it Up! Explanation: As long as a majority of the servers are available, the ZooKeeper service will be available.
chunks
subdomains
None of the Option is Correct
Which of the following is a benefits of distributed applications?
Which of the following is a benefits of distributed applications?
All the options are correct
Well Done. Your Answer is Correct Keep it Up! Explanation: All options are the benefits of distributed applications.
Scalability
Transparency
Reliability
Which of the following is incorrect statement?
which of the following is incorrect statement?
The ZooKeeper framework was originally built at “Google” for accessing their applications in an easy and robust manner
Well Done. Your Answer is Correct Keep it Up! Explanation: The ZooKeeper framework was originally built at “Yahoo!” for accessing their applications in an easy and robust manner
ZooKeeper solves this issue with its simple architecture and API.
ZooKeeper allows developers to focus on core application logic without worrying about the distributed nature of the application.
ZooKeeper is a distributed co-ordination service to manage large set of hosts.