In HDFS, reliability of storing data was maintained by a) Block Operations b) Block Replication c) Block Storage d) All the above

In HDFS, reliability of storing data was maintained by
a) Block Operations
b) Block Replication
c) Block Storage
d) All the above
by

1 Answer

Answer :

Block Replication
by

Related questions

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 other live machines. c)The namenode allows new client request to keep trying to read it. d)The Mapreduce job process runs ignoring the block and the data stored in it.

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.

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

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

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 backup copy near to its original site is best strategy d) Automated backup and scheduling is preferred over manual operations

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

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 backup copy near to its original site is best strategy d) Automated backup and scheduling is preferred over manual operations

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

. ___________ was built primarily as the fundamental storage service for Google’s search engine. a) BFS b) HDFS c) GFS d) GAE

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

___________ was built primarily as the fundamental storage service for Google’s search engine. a) BFS b) HDFS c) GFS d) GAE

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

Which statement best describes the Software as a Service cloud delivery model? A. A virtual machine provisioned and provided from the cloud which allows the customer to deploy custom applications. B. A multitenant storage service provisioned from the cloud which allows the customer to leverage the cloud for storing software data. C. A solution stack or set of middleware delivered to the client from the cloud which provides services for the design, development, and testing of industry aligned applications. D. An application delivered to the client from the cloud which eliminates the need to install and run the application on the customer's own computers and simplifying maintenance and support.

Description : Which statement best describes the Software as a Service cloud delivery model? A. A virtual machine provisioned and provided from the cloud which allows the customer to deploy custom ... and run the application on the customer's own computers and simplifying maintenance and support.

Last Answer : An application delivered to the client from the cloud which eliminates the need to install and run the application on the customer's own computers and simplifying maintenance and support.

Which two statements are true about the public cloud model? A. It meets security and auditing requirements for highly regulated industries. B. Resources and infrastructure are managed and maintained by the enterprise IT operations staff. C. It shifts the bulk of the costs from capital expenditures and IT infrastructure investment to an utility operating expense model. D. It shifts the bulk of the costs from capital expenditures to creating a virtualized and elastic infrastructure within the enterprise data center.

Description : Which two statements are true about the public cloud model? A. It meets security and auditing requirements for highly regulated industries. B. Resources and infrastructure are managed ... capital expenditures to creating a virtualized and elastic infrastructure within the enterprise data center.

Last Answer : It shifts the bulk of the costs from capital expenditures and IT infrastructure investment to an utility operating expense model.

Hadoop achieves reliability by replicating the data across multiple hosts and hence does not require ________ storage on hosts. a) RAID b) Standard RAID levels c) ZFS d) Operating system

Description : Hadoop achieves reliability by replicating the data across multiple hosts and hence does not require ________ storage on hosts. a) RAID b) Standard RAID levels c) ZFS d) Operating system

Last Answer : RAID

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 Giraph framework is less useful than a MapReduce job to solve graph and machine learning d) None of the mentioned

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

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 Giraph framework is less useful than a MapReduce job to solve graph and machine learning d) None of the mentioned

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

Last Answer : Hadoop stores data in HDFS and supports data compression/decompression

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 Giraph framework is less useful than a MapReduce job to solve graph and machine learning d) None of the mentioned

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

Last Answer : Hadoop stores data in HDFS and supports data compression/decompression

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 primary fails. c) Prevent data loss due to failure of primary namenode. d) Prevent the primary namenode form becoming single point

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.

_________ 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 : _________ is a web programming model for scalable data processing on large clusters over large data sets a) MapReduce b) HDFS c) GFS d) DFS

Last Answer : MapReduce

The Master of the HDFS Architecture is a) Node Manager b) Data Node c) Name Node d) None of the above

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

Which of the following feature make cloud-based storage systems highly reliable? a) Redundant networks b) Redundant name servers c) Replication d) All of the mentioned

Description : Which of the following feature make cloud-based storage systems highly reliable? a) Redundant networks b) Redundant name servers c) Replication d) All of the mentioned

Last Answer : All of the mentioned

.Which of the following feature make cloud-based storage systems highly reliable? a) Redundant networks b) Redundant name servers c) Replication d) All of the mentioned

Description : .Which of the following feature make cloud-based storage systems highly reliable? a) Redundant networks b) Redundant name servers c) Replication d) All of the mentioned

Last Answer : All of the mentioned

What are the advantages of HDFS federation in Hadoop? a) Isolation b) Namespace scalability c) Improves throughput d) All of the above

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

The comman used to copy a directory form one node to another in HDFS is a) rcp b) dcp c) drcp d) distcp

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

The hdfs command to create the copy of a file from a local system is a) CopyFromLocal b) copyfromlocal c) CopyLocal d) copyFromLocal

Description : The hdfs command to create the copy of a file from a local system is a) CopyFromLocal b) copyfromlocal c) CopyLocal d) copyFromLocal

Last Answer : copyFromLocal

The architecture for _______ is built on the concepts of shared-nothing and messaging-based information exchange. a) HDFS b) Chabby c) Nova d) BigTable

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

The architecture for _______ is built on the concepts of shared-nothing and messaging-based information exchange. a) HDFS b) Chabby c) Nova d) BigTable

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

The topmost layer of Hadoop is the _________ engine a) HDFS b) Cluster c) MapReduce d) Job Tracker

Description : The topmost layer of Hadoop is the _________ engine a) HDFS b) Cluster c) MapReduce d) Job Tracker

Last Answer : MapReduce

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

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

In Hadoop, the files are stored in a) Directory b) DFS c) GFS d) HDFS

Description : In Hadoop, the files are stored in a) Directory b) DFS c) GFS d) HDFS

Last Answer : HDFS

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 the feature of a) Amazon S3 and EBS b) GFS: Google File System c) HDFS: Hadoop Distributes File System d) None of the above

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

The gateway administrator provides the _________ template information when the infrastructure is set up. a) Cloud b) HDFS c) better d) VM

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

. _____________ 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 : . _____________ 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

Last Answer : HDFS

A ________ is a logical unit that serves as the target for storage operations, such as the SCSI protocol READs and WRITEs. a) GETs b) PUN c) LUN d) All of the mentioned

Description : A ________ is a logical unit that serves as the target for storage operations, such as the SCSI protocol READs and WRITEs. a) GETs b) PUN c) LUN d) All of the mentioned

Last Answer : LUN

Point out the wrong statement. a) Large cloud providers with geographically dispersed sites worldwide, therefore, achieve reliability rates that are hard for private systems to achieve b) Private data centers tend to be located in places where the company or unit was founded or acquired c) A network backbone is a very low-capacity network connection d) None of the mentioned

Description : Point out the wrong statement. a) Large cloud providers with geographically dispersed sites worldwide, therefore, achieve reliability rates that are hard for private systems to achieve b) Private data ... ) A network backbone is a very low-capacity network connection d) None of the mentioned

Last Answer : A network backbone is a very low-capacity network connection

Which of the following statements about Google App Engine (GAE) is INCORRECT. A. It’s a Platform as a Service (PaaS) model. B. Automatic Scalability is built in with GAE. As a developer you don’t need to worry about application scalability C. You can decide on how many physical servers required for hosting your application. D. The applications deployed on GAE have the same security, privacy and data protection policies as that of Google’s applications. So, applications can take advantage of reliability, performance and security of Google’s infrastructure.

Description : Which of the following statements about Google App Engine (GAE) is INCORRECT. A. It's a Platform as a Service (PaaS) model. B. Automatic Scalability is built in with GAE. As ... s applications. So, applications can take advantage of reliability, performance and security of Google's infrastructure.

Last Answer : You can decide on how many physical servers required for hosting your application.

A Solution to overcome the challenge to support a large number of application service consumers from around the world, cloud infrastructure providers (i.e., IaaS providers) have established data centers in multiple geographical locations to provide redundancy and ensure reliability in case of site failures is a) Global exchange of cloud resources b) Resource provisioning c) Cloud security d) Resource sharing

Description : A Solution to overcome the challenge to support a large number of application service consumers from around the world, cloud infrastructure providers (i.e., IaaS providers) have established data ... ) Global exchange of cloud resources b) Resource provisioning c) Cloud security d) Resource sharing

Last Answer : Global exchange of cloud resources

What is private cloud? A. A standard cloud service offered via the Internet B. A cloud architecture maintained within an enterprise data center. C. A cloud service inaccessible to anyone but the cultural elite

Description : What is private cloud? A. A standard cloud service offered via the Internet B. A cloud architecture maintained within an enterprise data center. C. A cloud service inaccessible to anyone but the cultural elite

Last Answer : A cloud architecture maintained within an enterprise data center.

Which of the following impose additional overhead on clients and offer faster transfer? a) Block storage b) File Storage c) File Server d) All of the mentioned

Description : Which of the following impose additional overhead on clients and offer faster transfer? a) Block storage b) File Storage c) File Server d) All of the mentioned

Last Answer : Block storage

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

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

What are all the modular architecture for OpenStack are: a) OpenStack Compute: For overseeing extensive systems of the virtual machine. b) OpenStack Object Storage: The storage framework that offers help for both object storage and block storage. c) Image Service: The conveyance service gives disclosure and enlistment to virtual disk pictures. d) A & B e) B & C f) All of the above

Description : What are all the modular architecture for OpenStack are: a) OpenStack Compute: For overseeing extensive systems of the virtual machine. b) OpenStack Object Storage: The storage framework that offers help for both object storage ... to virtual disk pictures. d) A & B e) B & C f) All of the above

Last Answer : All of the above

What are all the modular architecture for OpenStack are: a) OpenStack Compute: For overseeing extensive systems of the virtual machine. b) OpenStack Object Storage: The storage framework that offers help for both object storage and block storage. c) Image Service: The conveyance service gives disclosure and enlistment to virtual disk pictures. d) A & B e) B & C f) All of the above

Description : What are all the modular architecture for OpenStack are: a) OpenStack Compute: For overseeing extensive systems of the virtual machine. b) OpenStack Object Storage: The storage framework that offers help for both object storage ... to virtual disk pictures. d) A & B e) B & C f) All of the above

Last Answer : All of the above

Which of the following impose additional overhead on clients and offer faster transfer? a) Block storage b) File Storage c) File Server d) All of the mentioned

Description : Which of the following impose additional overhead on clients and offer faster transfer? a) Block storage b) File Storage c) File Server d) All of the mentioned

Last Answer : Block storage

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

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

What are the drawbacks for Layers? a) It is often necessary to pass data through many layers, which can slow performance significantly b) Layers support information hiding c) Multi-layered programs can be hard to debug because operations tend to be implemented through a series of calls across layers d) None of the mentioned

Description : What are the drawbacks for Layers? a) It is often necessary to pass data through many layers, which can slow performance significantly b) Layers support information hiding c) Multi-layered programs ... tend to be implemented through a series of calls across layers d) None of the mentioned

Last Answer : Multi-layered programs can be hard to debug because operations tend to be implemented through a series of calls across layers

The reliability of a system with n redundant components and a reliability of r is ____________ a) 1-(1-r)n b) 1-(1+r)n c) 1+(1-r)n d) All of the mentioned

Description : The reliability of a system with n redundant components and a reliability of r is ____________ a) 1-(1-r)n b) 1-(1+r)n c) 1+(1-r)n d) All of the mentioned

Last Answer : 1-(1-r)n

_______ feature allows you to optimize your system and capture all possible transactions. a) scalability b) reliability c) elasticity d) none of the mentioned

Description : _______ feature allows you to optimize your system and capture all possible transactions. a) scalability b) reliability c) elasticity d) none of the mentioned

Last Answer : elasticity

Which of the following is related to the service provided by Cloud? a) Sourcing b) Ownership c) Reliability d) AaaS

Description : Which of the following is related to the service provided by Cloud? a) Sourcing b) Ownership c) Reliability d) AaaS

Last Answer : Sourcing

Which of the following is essential concept related to Cloud? a) Reliability b) Productivityc) Abstraction d) All of the mentioned

Description : Which of the following is essential concept related to Cloud? a) Reliability b) Productivityc) Abstraction d) All of the mentioned

Last Answer : Abstraction

_______ enables batch processing, which greatly speeds up high-processing applications. A. Scalability B. Reliability C. Elasticity D. Utility

Description : _______ enables batch processing, which greatly speeds up high-processing applications. A. Scalability B. Reliability C. Elasticity D. Utility

Last Answer : Scalability

Which of the following is related to the service provided by Cloud? A. Sourcing B. Ownership C. Reliability D. PaaS

Description : Which of the following is related to the service provided by Cloud? A. Sourcing B. Ownership C. Reliability D. PaaS

Last Answer : Sourcing

. ___________refers to the non-functional requirements such as reliability, security, disaster recovery, etc. A. Service Development B. Plan Development C. Quality of service D. Technical Service

Description : . ___________refers to the non-functional requirements such as reliability, security, disaster recovery, etc. A. Service Development B. Plan Development C. Quality of service D. Technical Service

Last Answer : . Quality of service

. _______ enables batch processing, which greatly speeds up high-processing applications. a) Scalability b) Reliability c) Elasticity d) Utility

Description : . _______ enables batch processing, which greatly speeds up high-processing applications. a) Scalability b) Reliability c) Elasticity d) Utility

Last Answer : Scalability

_______ feature allows you to optimize your system and capture all possible transactions. a) scalability b) reliability c) elasticity d) none of the mentioned

Description : _______ feature allows you to optimize your system and capture all possible transactions. a) scalability b) reliability c) elasticity d) none of the mentioned

Last Answer : elasticity

.You can’t count on a cloud provider maintaining your _____ in the face of government actions. a) Scalability b) Reliability c) Privacy d) Availability

Description : .You can’t count on a cloud provider maintaining your _____ in the face of government actions. a) Scalability b) Reliability c) Privacy d) Availability

Last Answer : Privacy