Cloudera CCD-333 Q&A - in .pdf
- Exam Code: CCD-333
- Exam Name: Cloudera Certified Developer for Apache Hadoop
- Updated: Sep 17, 2026
- Q & A: 60 Questions and Answers
- PDF Price: $59.99
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Cloudera CCD-333 Q&A - Testing Engine
- Exam Code: CCD-333
- Exam Name: Cloudera Certified Developer for Apache Hadoop
- Updated: Sep 17, 2026
- Q & A: 60 Questions and Answers
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Cloudera CCD-333 Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| MapReduce Design and Development | 35% | - MapReduce workflow and execution - Job configuration and optimization - Input/output formats and data serialization - Mappers, reducers, combiners, partitioners |
| Best Practices and Optimization | 15% | - Scalability and fault tolerance - Performance tuning - Debugging and error handling |
| Hadoop Architecture and HDFS | 25% | - HDFS API usage - Data access, replication, and consistency - HDFS components and design |
| Hadoop Ecosystem Tools | 25% | - Apache Pig and data flow scripting - Oozie workflow scheduling - Apache Hive and data warehousing - Sqoop and Flume for data ingestion |
Cloudera Certified Developer for Apache Hadoop Sample Questions:
Which two of the following are valid statements? (Choose two)
- A. HDFS has the Characteristic of supporting a "write once, read many" data access model.
- B. HDFS is a distributed file system that replaces ext3 or ext4 on Linux nodes in a Hadoop cluster.
- C. HDFS is a distributed file system that runs on top of native OS filesystems and is well suited to storage of very large data sets.
- D. HDFS is optimized for storing a large number of files smaller than the HDFS block size.
Correct Answer: A,C π³οΈ
Explanation: Only visible for Prep4sureGuide members. You can sign-up / login (it's free).
You have an employee who is a Date Analyst and is very comfortable with SQL. He would like to run ad-hoc analysis on data in your HDFS duster. Which of the following is a data warehousing software built on top of Apache Hadoop that defines a simple SQL-like query language well-suited for this kind of user?
- A. Hadoop Streaming
- B. Oozie
- C. Sqoop
- D. Pig
- E. Flume
- F. Hive
- G. Hue
Correct Answer: F π³οΈ
Explanation: Only visible for Prep4sureGuide members. You can sign-up / login (it's free).
To process input key-value pairs, your mapper needs to load a 512 MB data file in memory. What is the best way to accomplish this?
- A. Serialize the data file, insert it in the Jobconf object, and read the data into memory in the configure method of the mapper.
- B. Place the datafile in the DataCache and read the data into memory in the configure method ofthe mapper.
- C. Place the data file in theDistributedCacheand read the data into memory in the map method of the mapper.
- D. Place the data file in theDistributedCacheand read the data into memory in the configure method of the mapper.
Correct Answer: C π³οΈ
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Combiners Increase the efficiency of a MapReduce program because:
- A. They provide an optimization and reduce the total number of computations that are needed to execute an algorithm by a factor of n, where is the number of reducer.
- B. They aggregate intermediate map output horn a small number of nearby (i.e., rack-local) machines and therefore reduce the amount of data that needs to be shuffled across the network to the reducers.
- C. They provide a mechanism for different mappers to communicate with each Other, thereby reducing synchronization overhead.
- D. They aggregate intermediate map output locally on each individual machine and therefore reduce the amount of data that needs to be shuffled across the network to the reducers.
Correct Answer: D π³οΈ
Explanation: Only visible for Prep4sureGuide members. You can sign-up / login (it's free).
You are developing a combiner that takes as input Text keys, IntWritable values, and emits Text keys, Intwritable values. Which interface should your class implement?
- A. Combiner <Text, Text, IntWritable, IntWritable>
- B. Combiner <Text, IntWritable, Text, IntWritable>
- C. Mapper <Text, IntWritable, Text, IntWritable>
- D. Reducer <Text, IntWritable, Text, IntWritable>
- E. Reducer <Text, Text, IntWritable, IntWritable>
Correct Answer: B π³οΈ
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