Madanswer Technologies Interview Questions Data|Agile|DevOPs|Python - Recent questions in Apache Phoenix

What are guideposts?

Mon, 01 Nov 2021 03:11:44 +0000

What are guideposts?

Can I map a Phoenix table over an existing HBase table?

Mon, 01 Nov 2021 03:11:22 +0000

Can I map a Phoenix table over an existing HBase table?

Can I access a table created by Phoenix using the standard HBase API?

Mon, 01 Nov 2021 03:10:59 +0000

Can I access a table created by Phoenix using the standard HBase API?

Can I do bulk data loads in Phoenix?

Mon, 01 Nov 2021 03:10:35 +0000

Can I do bulk data loads in Phoenix?

What happens to a Phoenix write when a RegionServer fails?

Mon, 01 Nov 2021 03:10:10 +0000

What happens to a Phoenix write when a RegionServer fails?

How do sequences work in Phoenix?

Mon, 01 Nov 2021 03:09:42 +0000

How do sequences work in Phoenix?

What if the Phoenix index is being built asynchronously and data is added to a table during indexing?

Mon, 01 Nov 2021 03:09:18 +0000

What if the Phoenix index is being built asynchronously and data is added to a table during indexing?

Can I see the individual cell timestamps in Phoenix tables? Is this something that's commonly used?

Mon, 01 Nov 2021 03:08:53 +0000

Can I see the individual cell timestamps in Phoenix tables? Is this something that's commonly used?

Can I govern access to the Phoenix servers?

Mon, 01 Nov 2021 03:08:28 +0000

Can I govern access to the Phoenix servers?

Are there sizing guidelines for Phoenix JDBC servers?

Mon, 01 Nov 2021 03:08:05 +0000

Are there sizing guidelines for Phoenix JDBC servers?

What is the typical architecture for a Phoenix deployment?

Mon, 01 Nov 2021 03:07:24 +0000

What is the typical architecture for a Phoenix deployment?

Can Phoenix be used for ETL use cases?

Mon, 01 Nov 2021 03:06:56 +0000

Can Phoenix be used for ETL use cases?

According to analysts, for what can traditional IT systems provide a foundation when they’re integrated with big data technologies like Hadoop?

Sun, 31 Oct 2021 03:18:05 +0000

According to analysts, for what can traditional IT systems provide a foundation when they’re integrated with big data technologies like Hadoop?

a) Big data management and data mining

b) Data warehousing and business intelligence

c) Management of Hadoop clusters

d) Collecting and storing unstructured data

Point out the correct statement.

Sun, 31 Oct 2021 03:17:18 +0000

Point out the correct statement.

a) Hadoop do need specialized hardware to process the data

b) Hadoop 2.0 allows live stream processing of real-time data

c) In the Hadoop programming framework output files are divided into lines or records

d) None of the mentioned

As companies move past the experimental phase with Hadoop, many cite the need for additional capabilities, including _______________

Sun, 31 Oct 2021 03:16:06 +0000

As companies move past the experimental phase with Hadoop, many cite the need for additional capabilities, including _______________

a) Improved data storage and information retrieval

b) Improved extract, transform and load features for data integration

c) Improved data warehousing functionality

d) Improved security, workload management, and SQL support

A data lake stores a vast amount of data (like water in a natural lake).

Sun, 31 Oct 2021 03:13:34 +0000

A data lake stores a vast amount of data (like water in a natural lake).

Select the correct answer from below options:

a) False

b) True

______ allows multiple transactions to run independently of each another.

Sun, 31 Oct 2021 03:12:58 +0000

______ allows multiple transactions to run independently of each another.

Select the correct answer from below options:

a) Consistency

b) Atomicity

c) Isolation

d) Durability

Transaction Managers are also called ___________.

Sun, 31 Oct 2021 03:12:13 +0000

Transaction Managers are also called ___________.

Select the correct answer from below options:

a) Transaction Monitor

b) Slaves

c) None of the options

____________ assures all operations as a unit of work are performed at once

Sun, 31 Oct 2021 03:11:35 +0000

____________ assures all operations as a unit of work are performed at once

Select the correct answer from below options:

a) actors

b) Durability

c) masters

d) Atomicity

Transaction Manager manages and monitors transactions. It is also called Transaction Monitor.

Sun, 31 Oct 2021 03:10:57 +0000

Transaction Manager manages and monitors transactions. It is also called Transaction Monitor.

Select the correct answer from below options:

a) True

b) False

Apache Phoenix is developed by __________________.

Sun, 31 Oct 2021 03:10:16 +0000

Apache Phoenix is developed by __________________.

Select the correct answer from below options:

a) Facebook

b) Oracle

c) Salesforce.com

d) Yahoo

________ is a transactional engine for shared stores like HBase that enables enables multi versioning and rollback.

Sun, 31 Oct 2021 03:09:29 +0000

________ is a transactional engine for shared stores like HBase that enables enables multi versioning and rollback.

Select the correct answer from below options:

a) Apache Hive

b) Apache Hbase

c) Apache Storm

d) Apache Tephra

The Apache Phoenix framework provides both server and client libraries.

Sun, 31 Oct 2021 03:08:25 +0000

The Apache Phoenix framework provides both server and client libraries.

Select the correct answer from below options:

a) False

b) True

Apache Phoenix supports array type only.

Sun, 31 Oct 2021 03:07:28 +0000

Apache Phoenix supports array type only.

Select the correct answer from below options:

a) False

b) True

A transaction manager is easy and swift, keeps all necessary states in memory, and endures all states to a _________.

Sun, 31 Oct 2021 03:06:47 +0000

A transaction manager is easy and swift, keeps all necessary states in memory, and endures all states to a _________.

Select the correct answer from below options:

a) None of the options

b) System-log

c) write-ahead log

d) All of the options

Which of the following is the HBase transaction manager?

Sun, 31 Oct 2021 03:05:40 +0000

Which of the following is the HBase transaction manager?

Select the correct answer from below options:

a) Apache Hive

b) Apache Tephra

c) None of the options

Which of the following is an open source processing engine built for large scale processing of data?

Sun, 31 Oct 2021 03:04:17 +0000

Which of the following is an open source processing engine built for large scale processing of data?

Select the correct answer from below options:

a) None of the options

b) Apache Hbase

c) Apache Spark

d) Apache Hive

HBase enables transaction support by utilizing Apache Tephra as its transaction manager.

Sun, 31 Oct 2021 03:02:39 +0000

HBase enables transaction support by utilizing Apache Tephra as its transaction manager.

Select the correct answer from below options:

a) False

b) True

Transactions are an inevitable component of relational databases.

Sun, 31 Oct 2021 03:01:32 +0000

Transactions are an inevitable component of relational databases.

Select the correct answer from below options:

a) False

b) True

PhoenixHiveHandler is used to read data from Phoenix in Hive.

Sun, 31 Oct 2021 03:00:49 +0000

PhoenixHiveHandler is used to read data from Phoenix in Hive.

Select the correct answer from below options:

a) True

b) False

Apache Tephra is a transactional engine for shared stores like HBase that gives assistance of multi versioning and rollback.

Sun, 31 Oct 2021 03:00:21 +0000

Apache Tephra is a transactional engine for shared stores like HBase that gives assistance of multi versioning and rollback.

Select the correct answer from below options:

a) True

b) False

Which of the following statements about Hadoop are false?

Sat, 30 Oct 2021 12:57:17 +0000

Which of the following statements about Hadoop are false?

Select the correct answer from below options:

a) Hadoop is a distributed framework

b) The main algorithm used in Hadoop is MapReduce

c) Hadoop runs with commodity hardware

d) None of the above options

Salesforce.com developed Apache Phoenix.

Sat, 30 Oct 2021 12:56:19 +0000

Salesforce.com developed Apache Phoenix.

Select the correct answer from below options:

a) False

b) True

Which of the following can run on top of Hadoop?

Sat, 30 Oct 2021 12:55:06 +0000

Which of the following can run on top of Hadoop?

Select the correct answer from below options:

a) All the above options

b) Hbase

c) Hive

d) Phoenix

Data lake uses flat architecture to store data.

Sat, 30 Oct 2021 12:53:46 +0000

Data lake uses flat architecture to store data.

Select the correct answer from below options:

a) False

b) True

What algorithm does MapReduce programming use?

Sat, 30 Oct 2021 12:53:01 +0000

What algorithm does MapReduce programming use?

Select the correct answer from below options:

a) Reduce

b) Map

c) All the above options

Big data sources produce a large volume of data.

Sat, 30 Oct 2021 12:51:50 +0000

Big data sources produce a large volume of data.

Select the correct answer from below options:

a) False

b) True

For HBase, what type of skin is Apache Phoenix?

Sat, 30 Oct 2021 12:51:09 +0000

For HBase, what type of skin is Apache Phoenix?

Select the correct answer from below options:

a) None of the options

b) NoSQL

c) SQL

In which of the following is Spark implemented?

Sat, 30 Oct 2021 12:48:49 +0000

In which of the following is Spark implemented?

Select the correct answer from below options:

a) Scala

b) Ruby

c) Java

d) Python

___________ ensures that database modifications are not performed as an incomplete state transition in case of a failure.

Sat, 30 Oct 2021 12:48:06 +0000

___________ ensures that database modifications are not performed as an incomplete state transition in case of a failure.

Select the correct answer from below options:

a) Durability

b) Consistency

c) Atomicity

d) None of the options

Isolation allows multiple transactions to run independently of each another.

Sat, 30 Oct 2021 12:46:42 +0000

Isolation allows multiple transactions to run independently of each another.

Select the correct answer from below options:

a) True

b) False

A transaction primarily refers to modifications performed in a database in a logical line.

Sat, 30 Oct 2021 12:44:53 +0000

A transaction primarily refers to modifications performed in a database in a logical line.

Select the correct answer from below options:

a) True

b) False