Timer to help you control the exam time

In order to help you control the Apache-Hadoop-Developer examination time, we have considerately designed a special timer to help your adjust the pace of answering the questions of the Apache-Hadoop-Developer study materials. Many people always are stopped by the difficult questions. Then they will fall into thoughts to try their best to answer the questions of the Apache-Hadoop-Developer real exam. Finally, they used up all examination time and leave a lot of unanswered questions of the Apache-Hadoop-Developer exam questions. It is a bad habit. In your real exam, you must answer all questions in limited time. So you need our timer to help you. Our timer is placed on the upper right of the page. The countdown time will run until it is time to submit your exercises of the Apache-Hadoop-Developer study materials. Also, it will remind you when the time is soon running out.

Automatic generation of report

Every practice exam or virtual exam of the Apache-Hadoop-Developer study materials is important for you. It is a good chance to test your current revision conditions. So it is essential to summarize each exercise to help you adjust your review plan. Now, we have added a new function to our online test engine and windows software of the Apache-Hadoop-Developer real exam, which can automatically generate a report according to your exercises of the Apache-Hadoop-Developer exam questions. So you need not to summarize by yourself. The system will accurately help you analyze the exercises of the Apache-Hadoop-Developer study materials. Then you will clearly know where you are good at and where your do badly. Flexible adjustment to your revision of the Apache-Hadoop-Developer real exam is essential to pass the exam. You can make decisions after careful consideration. It is up to you to make a decision.

If we redouble our efforts, our dreams will change into reality. Although we might come across many difficulties during pursuing our dreams, we should never give up. If you still have dreams, our Apache-Hadoop-Developer study materials will help you realize your dreams. As old saying goes, knowledge is wealth. So our Apache-Hadoop-Developer exam questions will truly teach you a lot of useful knowledge, which can compensate for your shortcomings. Actions speak louder than words. You are supposed to learn to make a rational plan of life. Our Apache-Hadoop-Developer real exam will accompany you to grow stronger.

Three packages for your convenience

As we all know, the world does not have two identical leaves. People's tastes also vary a lot. So we have tried our best to develop the three packages for you to choose. Now we have free demo of the Apache-Hadoop-Developer study materials, which can print on papers and make notes. Then windows software of the Apache-Hadoop-Developer exam questions, which needs to install on windows software and run on JAVA environment. Also, the windows software is intelligent to simulate the real test environment. Then the online engine of the Apache-Hadoop-Developer study materials, which is convenient for you because it doesn't need to install on computers. It supports Windows, Mac, Android, iOS and so on. The Apache-Hadoop-Developer real exam just can run on web browser. In short, the three packages of the study materials have respect advantages. So you can choose as you like. We strongly advise you to purchase all three packages of the Apache-Hadoop-Developer exam questions. You absolutely can afford for them.

Hortonworks Hadoop 2.0 Certification exam for Pig and Hive Developer Sample Questions:

1. Your cluster's HDFS block size in 64MB. You have directory containing 100 plain text files, each of which is 100MB in size. The InputFormat for your job is TextInputFormat. Determine how many Mappers will run?

A) 100
B) 64
C) 640
D) 200

2. Which TWO of the following statements are true regarding Hive? Choose 2 answers

A) Allows you to define a structure for your unstructured Big Data
B) Is a relational database
C) Useful for data analysts familiar with SQL who need to do ad-hoc queries
D) Offers real-time queries and row level updates

3. Indentify which method in the Mapper you should use to implement code for reading the file and populating the associative array?

A) map
B) combine
C) init
D) configure

4. Indentify which best defines a SequenceFile?

A) A SequenceFile contains a binary encoding of an arbitrary number of WritableComparable objects, in sorted order.
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 the same type.
C) A SequenceFile contains a binary encoding of an arbitrary number of heterogeneous Writable objects
D) A SequenceFile contains a binary encoding of an arbitrary number of homogeneous Writable objects

5. You want to count the number of occurrences for each unique word in the supplied input data. You've decided to implement this by having your mapper tokenize each word and emit a literal value 1, and then have your reducer increment a counter for each literal 1 it
receives. After successful implementing this, it occurs to you that you could optimize this by specifying a combiner. Will you be able to reuse your existing Reduces as your combiner in this case and why or why not?

A) No, because the Reducer and Combiner are separate interfaces.
B) Yes, because the sum operation is both associative and commutative and the input and output types to the reduce method match.
C) Yes, because Java is a polymorphic object-oriented language and thus reducer code can be reused as a combiner.
D) No, because the sum operation in the reducer is incompatible with the operation of a Combiner.
E) No, because the Combiner is incompatible with a mapper which doesn't use the same data type for both the key and value.

Solutions: