Hortonworks Hadoop 2.0 Certification exam for Pig and Hive Developer 認定 Apache-Hadoop-Developer 試験問題:
1. Which one of the following statements is true about a Hive-managed table?
A) When the table is dropped, the underlying folder in HDFS is deleted.
B) Hive dynamically defines the schema of the table based on the format of the underlying data.
C) Hive dynamically defines the schema of the table based on the FROM clause of a SELECT query.
D) Records can only be added to the table using the Hive INSERT command.
2. What is a SequenceFile?
A) A SequenceFile contains a binary encoding of an arbitrary number of heterogeneous writable objects.
B) A SequenceFile contains a binary encoding of an arbitrary number key-value pairs. Each key must be the same type. Each value must be same type.
C) A SequenceFile contains a binary encoding of an arbitrary number of WritableComparable objects, in sorted order.
D) A SequenceFile contains a binary encoding of an arbitrary number of homogeneous writable objects.
3. Which YARN component is responsible for monitoring the success or failure of a Container?
A) ApplicationMaster
B) JobTracker
C) ResourceManager
D) NodeManager
4. Given the following Hive command:
INSERT OVERWRITE TABLE mytable SELECT * FROM myothertable;
Which one of the following statements is true?
A) Any existing data in mytable will be overwritten
B) The contents of myothertable are appended to mytable
C) A new table named mytable is created, and the contents of myothertable are copied into mytable
D) The statement is not a valid Hive command
5. You use the hadoop fs -put command to write a 300 MB file using and HDFS block size of 64 MB. Just after this command has finished writing 200 MB of this file, what would another user see when trying to access this life?
A) They would see no content until the whole file written and closed.
B) They would see the current state of the file, up to the last bit written by the command.
C) They would see the current of the file through the last completed block.
D) They would see Hadoop throw an ConcurrentFileAccessException when they try to access this file.
質問と回答：
| 質問 # 1 正解： A | 質問 # 2 正解： B | 質問 # 3 正解： C | 質問 # 4 正解： A | 質問 # 5 正解： C |
1474 お客様のコメント
品質保証JPexamはIT認定試験のシラバスに従って、試験問題の範囲を正確に絞って、的中率が99％の最新問題集を捧げます。
1年間の無料更新サービスJPexamは1年以内に問題集の無料更新サービスを提供し、お客様がいつでも最新版の問題集を持つことを保証いたします。もし試験の内容が変更されたら、弊社は直ちにお客様にお知らせします。それに、弊社の問題集が更新されたら、早速メールで最新バージョンを送付いたします。
全額返金JPexamの問題集を利用すると、短時間で勉強しても試験に合格できるのを保証いたします。試験に不合格になってしまった場合、弊社は全額返金いたします。(
ご購入前のお試しJPexamは問題集のサンプルを無料で提供いたします。ご購入前にサンプルを試用して製品の品質を確認することができます。ご遠慮なく利用してください。
