61. Avro schemas are defined with . . . . . . . . A. JSON B. XML C. JAVA D. All of the mentioned Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option A No explanation is given for this question Let's Discuss on Board
62. The HDFS file system is temporarily unavailable whenever the HDFS . . . . . . . . is down. A. DataNode B. NameNode C. ActionNode D. None of the mentioned Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option B No explanation is given for this question Let's Discuss on Board
63. . . . . . . . . typically compresses files to within 10% to 15% of the best available techniques. A. LZO B. Bzip2 C. Gzip D. All of the mentioned Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option B No explanation is given for this question Let's Discuss on Board
64. Point out the correct statement. A. Records use the type name "record" and support three attributes B. Enum are represented using JSON arrays C. Avro data is always serialized with its schema D. All of the mentioned Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option A No explanation is given for this question Let's Discuss on Board
65. Automatic restart and . . . . . . . . of the NameNode software to another machine is not supported. A. failover B. end C. scalability D. all of the mentioned Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option A No explanation is given for this question Let's Discuss on Board
66. The . . . . . . . . as just the value field append(value) and the key is a LongWritable that contains the record number, count + 1. A. SetFile B. ArrayFile C. BloomMapFile D. None of the mentioned Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option B No explanation is given for this question Let's Discuss on Board
67. The . . . . . . . . file is populated with the key and a LongWritable that contains the starting byte position of the record. A. Array B. Index C. Immutable D. All of the mentioned Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option B No explanation is given for this question Let's Discuss on Board
68. Which of the following is a primitive data type in Avro? A. null B. boolean C. float D. all of the mentioned Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option D No explanation is given for this question Let's Discuss on Board
69. Which of the following compression is similar to Snappy compression? A. LZO B. Bzip2 C. Gzip D. All of the mentioned Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option A No explanation is given for this question Let's Discuss on Board
70. Apache Hadoop . . . . . . . . provides a persistent data structure for binary key-value pairs. A. GetFile B. SequenceFile C. Putfile D. All of the mentioned Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option B No explanation is given for this question Let's Discuss on Board
