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 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 : What is true about SSO? A. SSO has multiple authentication server B. SSO managing single accesses to other systems C. In SSO, User sends the ticket to intranet server. D. All of the above
Last Answer : In SSO, User sends the ticket to intranet server.
Description : Point out the wrong statement. a) XML checks the ID request against its policies and either allows or denies the request b) SPML in most instances operates as a reply/request mechanism c) User centric authentication takes place usually in the form of knowledge cards d) All of the mentioned
Last Answer : SPML in most instances operates as a reply/request mechanism
Description : The _______ Open Source Identity Framework is used to create a vendor-neutral cloud-based authentication service. a) Higgins b) Hughes c) Hinges d) All of the mentioned
Last Answer : Higgins
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
Description : Point out the correct statement. a) A client can request access to a cloud service from any location b) A cloud has multiple application instances and directs requests to an instance based on ... a set of virtual machines with each machine being assigned a workload d) All of the mentioned
Last Answer : All of the mentioned
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 : 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 : . _____________ 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
Description : Which statement is true about a cloud computing environment? A. It cannot be used to host location based applications. B. It enables users to access systems regardless of their location. C. It introduces ... D. It can improve a web server response time by having servers closer to the end user.
Last Answer : It enables users to access systems regardless of their location.
Description : Which of the following is a key mechanism for protecting data? a) Access control b) Auditing c) Authentication d) All of the mentioned
Description : Which statement is true about NameNode High Availability a) Solve Single point of failure b) For high scalability c) Reduce storage overhead to 50% d) None of the above
Last Answer : Solve Single point of failure
Description : Job tracker runs on a) Namenode b) Datanode c) Secondary namenode d) Secondary datanode
Last Answer : )Sqoop
Description : Under Hadoop High Availability, Fencing means a)Preventing a previously active namenode from start running again. b)Preventing the start of a failover in the event of network failure with the ... previously active namenode. d)Preventing a previously active namenode from writing to the edit log.
Last Answer : Preventing a previously active namenode from writing to the edit log.
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 : 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 : . ___________ 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 : _________ 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
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 : Point out the wrong statement. a) Abstraction enables the key benefit of cloud computing: shared, ubiquitous access b) Virtualization assigns a logical name for a physical resource and then provides a ... their resources into pools that can be assigned on demand to users d) All of the mentioned
Last Answer : All cloud computing applications combine their resources into pools that can be assigned on demand to users
Description : What is not a role of encryption? a)It is used to protect data from unauthorized access during transmission. b)It is used to ensure user authentication c)It is used to ensure data integrity d)It is used to ensure data corruption does not happens
Last Answer : d)It is used to ensure data corruption does not happens
Description : _______ is an XML request/response language that is used to integrate and interoperate service provisioning requests. A. XACML B. FIDM C. SPML D. SSP
Last Answer : SPML
Description : The instruction fetch operation is initiated by loading the contents of program counter into the and sends _ request to memory: a. Memory register and read b. Memory register and write c. Data register and read d. Address register and read
Last Answer : d. Address register and read
Description : The upper red arrow show that CPU sends out the control signals____ and _____ indicate the data is read from the memory: a. Memory request b. Read c. Both A and B d. None of these
Last Answer : c. Both A and B
Description : Point out the wrong statement. a) SPML is used to prepare Web services and applications for use b) With SPML, a system can provide automated user and system access c) Without a provisioning system, a cloud computing system can be very efficient and potentially reliable d) All of the mentioned
Last Answer : Without a provisioning system, a cloud computing system can be very efficient and potentially reliable
Description : It helps a user to have remote access to an application from a server. a) Application virtualization b) Network virtualization c) Desktop virtualization d) Storage virtualization
Last Answer : Application virtualization
Description : Point out the wrong statement. a) Distributed transaction systems such as internetworks or cloud computing systems magnify the difficulties faced by identity management systems b) The Distributed ... CardSpace specifications support the authentication type of data object d) None of the mentioned
Last Answer : The OpenID and
Description : _________ is one of the more expensive and complex areas of network computing. a) Multi-Factor Authentication b) Fault tolerance c) Identity protection d) All of the mentioned
Last Answer : Identity protection
Description : __________ authentication requires the outside use of a network security or trust service. a) SSO b) Singlefactor c) Multi Factor d) All of the mentioned
Last Answer : Multi Factor
Description : Point out the wrong statement. A. Distributed transaction systems such as internetworks or cloud computing systems magnify the difficulties faced by identity management systems B. The Distributed Audit ... CardSpace specifications support the authentication type of data object D. All of the above
Last Answer : The OpenID and CardSpace specifications support the authentication type of data object
Description : More secure authentication requires the use of at least? A. two-factor authentication. B. three-factor authentication. C. four-factor authentication. D. None of the above
Last Answer : two-factor authentication
Description : _____ has single authentication server, managing multiple accesses to other systems A. SSO B. IDaaS C. SOAP D. SOA
Last Answer : SSO
Description : Which of the following is built on top of a Hadoop framework using the Elastic Compute Cloud? a) Amazon Elastic MapReduce b) Amazon Mechanical Turkc) Amazon DevPay d) Multi-Factor Authentication
Last Answer : Amazon Elastic MapReduce