Description : To read a file in HDFS, a user sends an _______ request to the NameNode toget the location of file blocks. a) access b) open c) authentication d) create
Last Answer : open
Description : The comman used to copy a directory form one node to another in HDFS is a) rcp b) dcp c) drcp d) distcp
Last Answer : distcp
Description : Very large sustainable reading and writing bandwidth, mostly continuous accessing instead of random accessing. The programming interface is similar to that of the POSIX file system accessing interface. This is ... : Google File System c) HDFS: Hadoop Distributes File System d) None of the above
Last Answer : GFS: Google File System
Description : Point out the correct statement. a) Hadoop is an ideal environment for extracting and transforming small volumes of data b) Hadoop stores data in HDFS and supports data compression/decompression c) The ... less useful than a MapReduce job to solve graph and machine learning d) None of the mentioned
Last Answer : Hadoop stores data in HDFS and supports data compression/decompression
Description : Point out the correct statement. a) Hadoop is an ideal environment for extracting and transforming small volumes of data b) Hadoop stores data in HDFS and supports data compression/decompression c) The ... useful than a MapReduce job to solve graph and machine learning d) None of the mentioned
Description : What are the advantages of HDFS federation in Hadoop? a) Isolation b) Namespace scalability c) Improves throughput d) All of the above
Last Answer : All of the above
Description : In a Hadoop cluster, what is true for a HDFS block that is no longer available due to disk corruption or machine failure? a)It is lost for ever b)It can be replicated form its alternative locations ... to read it. d)The Mapreduce job process runs ignoring the block and the data stored in it.
Last Answer : It can be replicated form its alternative locations to other live machines.
Description : The architecture for _______ is built on the concepts of shared-nothing and messaging-based information exchange. a) HDFS b) Chabby c) Nova d) BigTable
Last Answer : Nova
Description : . ___________ was built primarily as the fundamental storage service for Google’s search engine. a) BFS b) HDFS c) GFS d) GAE
Last Answer : 200 TB
Description : ___________ was built primarily as the fundamental storage service for Google’s search engine. a) BFS b) HDFS c) GFS d) GAE
Last Answer : GFS
Description : The topmost layer of Hadoop is the _________ engine a) HDFS b) Cluster c) MapReduce d) Job Tracker
Last Answer : MapReduce
Description : The client reading the data from HDFS filesystem in Hadoop a) gets the data from the namenode b) gets the block location from the datanode c) gets only the block locations form the namenode d) gets both the data and block location from the namenode
Last Answer : gets only the block locations form the namenode
Description : The main goal of HDFS High availability is a) Faster creation of the replicas of primary namenode. b) To reduce the cycle time required to bring back a new primary namenode after existing ... data loss due to failure of primary namenode. d) Prevent the primary namenode form becoming single point
Last Answer : To reduce the cycle time required to bring back a new primary namenode after existing primary fails.
Description : _________ is a web programming model for scalable data processing on large clusters over large data sets a) MapReduce b) HDFS c) GFS d) DFS
Description : In HDFS, reliability of storing data was maintained by a) Block Operations b) Block Replication c) Block Storage d) All the above
Last Answer : Block Replication
Description : The Master of the HDFS Architecture is a) Node Manager b) Data Node c) Name Node d) None of the above
Last Answer : Name Node
Description : In Hadoop, the files are stored in a) Directory b) DFS c) GFS d) HDFS
Last Answer : HDFS
Description : The gateway administrator provides the _________ template information when the infrastructure is set up. a) Cloud b) HDFS c) better d) VM
Last Answer : VM
Description : . _____________ The open source clone of GFS. Written in Java. The programming interfaces are similar to POSIX but not identical. a) HDFS b) SAMIL c) SCIM d) DVE
Description : Which of the following storage devices exposes its storage to clients as Raw storage that can be partitioned to create volumes? a) block b) file c) disk d) all of the mentioned
Last Answer : block
Description : The command which transcribes the standard input to the standard output and also makes a copy of the same in a file is A. tee B. tr C. sort D. grep E. None of the above
Last Answer : A. tee
Description : Point out the wrong statement : A. Full virtualization requires that the host operating system provide a virtual machine interface for the guest operating system and that the guest access hardware through ... A process virtual machine instantiates when a command begins a process D. All of the above
Last Answer : Full virtualization requires that the host operating system provide a virtual machine interface for the guest operating system and that the guest access hardware through that host VM
Description : Point out the wrong statement. a) Full virtualization requires that the host operating system provide a virtual machine interface for the guest operating system and that the guest access hardware ... A process virtual machine instantiates when a command begins a process d) All of the mentioned
Description : Which of the following command is used to enter Safemode a) hadoop dfsadmin –safemode get b) bin dfsadmin –safemode get c) hadoop dfsadmin –safemode enter d) None of the above
Last Answer : hadoop dfsadmin –safemode enter
Description : Which of the following is false? a) The more important the data, the greater the need for backing it up b) A backup is as useful as its associated restore strategy c) Storing the ... near to its original site is best strategy d) Automated backup and scheduling is preferred over manual operations
Last Answer : Storing the backup copy near to its original site is best strategy
Description : Which one of the following statements is false regarding the Distributed Cache? a) The Hadoop framework will ensure that any files in the Distributed Cache are distributed to all map and reduce tasks. b) ... Cache on to the slave node before any tasks for the job are executed on that node.
Last Answer : MapReduce tries to place the data and the compute as close as possible
Description : When you copy a Web page or a file from a server to your local computer, this process is called (a) conferencing (b) downloading -Technology
Last Answer : (b) Because we store information from a server computer to a user computer.
Description : What command would you use to create a backup control file?
Last Answer : Alter database backup control file to trace.
Description : In SQL, the command(s) is (are)used tocreate an index for atable or cluster A. CREATE INDEX B. MODIFY INDEX C. SET INDEX TO FILE D. All of theabove E. None of the above
Last Answer : CREATE INDEX
Description : You have changed a database parameter stored in spfile to an incorrect value. When you try to restart the database, the database only gets as far as startup. How can you correct this error? A. Edit ... the Oracle command - a. Create pfile='pfile' from spfile b. Reset the parameter in file pfile
Last Answer : b. Reset the parameter in file pfile
Description : Write Unix command for following: i)create a folder OSY ii) create a file FIRST in OSY folder iii) List/display all files and directories. iv) Write command to clear the screen
Last Answer : i) create a folder OSY: $mkdir OSY ii)create a file FIRST in OSY folder: $cd OSY $cat>FIRST or $ touch FIRST iii) List/display all files and directories: $ls iv) to clear screen: $clear
Description : In distributed system, each processor has its own ___________ a) local memory b) clock c) both local memory and clock d) none of the mentioned
Last Answer : both local memory and clock
Description : Which of the following genres does Hadoop produce? a) Distributed file system b) JAX-RS c) Java Message Service d) Relational Database Management System
Last Answer : Distributed file system
Description : Which of the following disk operation is performed When a tenant is granted access to a virtual storage container? a) CRUD b) File system modifications c) Partitioning d) All of the mentioned
Last Answer : All of the mentioned
Description : How would you use java & App Engine to write to the file system? a. Disconnect from the internet and Google App Engine automatically writes to the disk. b. Edit the configuration file accordingly c. ... Invoke an instance of Google App Engine within the sandbox and it will then write to the disk.
Last Answer : You cannot write t the file system with the exception of resources files.
Description : In Google File System (GFS) the file name, file index was maintained by a) GFS Chunk Server b) GFS Master c) Linux File System d) None of the above
Last Answer : GFS Master
Description : A ________ cloud requires virtualized storage to support the staging and storage of data. a) soft b) compute c) local d) none of the mentioned
Last Answer : compute
Description : Cloud computing shifts capital expenditures into ________ expenditures. a) operating b) service c) local d) none of the mentioned
Last Answer : operating
Description : Which of the following is true of cloud computing? A. It's always going to be less expensive and more secure than local computing. B. You can access your data from any computer in the world, ... connection. C. Only a few small companies are investing in the technology, making it a risky venture.
Last Answer : You can access your data from any computer in the world, as long as you have an Internet connection.
Description : The expansion of SLA is _______________. A. Server level agreement. B. Service local agreement. C. Server local agreement. D. Service level agreement
Last Answer : Service level agreement
Description : Point out the wrong statement. a) You can use proxy and brokerage services to separate clients from direct access to shared cloud storage b) Any distributed application has a much ... doesn't have CSE-R17.BLOGSPOT.COM vulnerabilities associated with Internetapplications d) All of the mentioned
Last Answer : Cloud computing doesn’t have CSE-R17.BLOGSPOT.COM vulnerabilities associated with Internetapplications
Description : Which of the following component is required for both online and local data access in hybrid application? a) local b) cloud c) both local and cloud d) none of the mentioned
Last Answer : both local and cloud
Description : Point out the wrong statement. a) Google App Engine lets you deploy the application and monitor it b) From the standpoint of the client, a cloud service provider is different than any other networked ... be brought to bear to solve mobile, desktop, and local server issues d) All of the mentioned
Last Answer : From the standpoint of the client, a cloud service provider is different than any other networked service
Description : Point out the correct statement. a) With Atmos, you can create your own cloud storage system or leverage a public cloud service with Atmos online b) IBM is a major player in cloud ... managed storage, the storage service provider makes storage capacity available to users d) All of the mentioned
Last Answer : With Atmos, you can create your own cloud storage system or leverage a public cloud service with Atmos online