Exam 3: Distributed Systems and File System

in NFS which funtion is used for creating new file?

Processor Consistency model guarantees and conforms that

In------------------  receivers never acknowledge the successful delivery of multicast message but instead report only when missing the message.

Optimistic logging protocols need to keep track of

Any successive write operation by a process on a data item x will be performed on a copy of x that is up to date with the value most recently read by that process.

In HDFS file System, A---------------serves as the master and there is only one NameNode per cluster

Staleness deviations relate to the a replica was updated.

In HDFS file System,-------------NameNode is used when the Primary NameNode goes down.

replicas are used only to improve access time on data

In which of the following consistency model all writes become perceptible to all processes

NFS file System uses Mechanism

HDFS works in a fashion.

A problem with the-------------- protocol is that when the coordinator has crashed, participants may not be able to reach a final decision.

datanodes and namenode are two elements of which file system?

--------------consistency is that write operations by the same process are performed in the correct order everywhere.

In distributed file system, DNS stands for?

In HDFS, ---------------is the slave/worker node and holds the user data in the form of Data Blocks.

In which file system mapreduce function is used?

map and reduce are

File Replication is done to