CCA-470 題庫具備高通過率
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提供免費試用 CCA-470 題庫資料
CCA-470 試題及答案作為試用,目前我們只提供PDF版本的試用DEMO,軟件版本只提供截圖。這樣一來您就知道最新的 Cloudera CCA-470 培訓資料的品質,希望 Cloudera CCA-470 考古題是廣大IT考生最佳的選擇。
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購買後,立即下載 CCA-470 題庫 (Cloudera Certified Administrator for Apache Hadoop CDH4 Upgrade Exam (CCAH)): 成功付款後, 我們的體統將自動通過電子郵箱將您已購買的產品發送到您的郵箱。(如果在12小時內未收到,請聯繫我們,注意:不要忘記檢查您的垃圾郵件。)
最新的 CCAH CCA-470 免費考試真題:
1. For a MapReduce job, on a cluster running MapReduce v1 (MRv1), what's the relationship between tasks and task templates?
A) There are always exactly as many task attempts as there are tasks.
B) There are always at least as many task attempts as there are tasks.
C) The developer sets the number of task attempts on job submission.
D) There are always at most as many tasks attempts as there are tasks.
2. What two processes must you do if you are running a Hadoop cluster with a single NameNode and six DataNodes, and you want to change a configuration parameter so that it affects all six DataNodes.
A) You must restart all six DataNode daemons to apply the changes to the cluster.
B) You must modify the configuration files on only one of the DataNode machine
C) You must modify the configuration files on each of the six DataNode machines.
D) You must restart the NameNode daemon to apply the changes to the cluster
E) You must modify the configuration files on the NameNode only. DataNodes read their configuration from the master nodes.
F) You don't need to restart any daemon, as they will pick up changes automatically.
3. Which scheduler would you deploy to ensure that your cluster allows short jobs to finish within a reasonable time without starving long-running jobs?
A) Fair Scheduler
B) Capacity Scheduler
C) FIFO Scheduler
D) Completely Fair Scheduler (CFS)
4. How does the NameNode know DataNodes are available on a cluster running MapReduce v1 (MRv1)
A) DataNodes heartbeat in the master on a regular basis.
B) The NameNode send a broadcast across the network when it first starts, and DataNodes respond.
C) DataNodes listed in the dfs.hosts file. The NameNode uses as the definitive list of available DataNodes.
D) The NameNode broadcasts a heartbeat on the network on a regular basis, and DataNodes respond.
5. What information is stored on disk on the NameNode? (Choose 4)
A) An edit log of changes that have been made since the last snapshot compaction by the Secondary NameNode.
B) A catalog of DataNodes and the blocks that are stored on them.
C) Names of the files in HDFS.
D) The status of the heartbeats of each DataNode.
E) File permissions of the files in HDFS.
F) An edit log of changes that have been made since the last backup of the NameNode.
G) The directory structure of the files in HDFS.
問題與答案:
問題 #1 答案: A | 問題 #2 答案: D,E | 問題 #3 答案: A | 問題 #4 答案: A | 問題 #5 答案: A,B,C,G |
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我取得了不錯的成績,感謝你們的CCA-470題庫,很有幫助!