NoSQL Online Test

Test duration:

20

min

Notes

No. of questions:

10

Tie

Level of experience:

Entry/Mid/Senior

NoSQL Test

NoSQL online test is the ideal test for recruiters and hiring managers to assess candidate's understanding of NoSQL. Our test is useful for hiring NoSQL DataBase Engineer, Hadoop and NoSQL Operations Engineer, NoSQL Database Administrator, NoSQL Platform Engineer, and NoSQL Data Analyst. Our customers have reported that iMocha's NoSQL test has helped them to reduce hiring time by 45%.

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17172

+

Candidates
Assessed

117

+

Organizations Served

About

NoSQL Online Test

NoSQL (Not Only SQL) is a non-relational database. NoSQL is especially useful when an enterprise needs to access and analyze massive amounts of unstructured data or data that are stored remotely on multiple virtual servers in the cloud.

‍

NoSQL Online Test enables recruiters, hiring team and employers, to effectively assess the NoSQL skills of the candidates before an interview. The NoSQL Assessment test is specially designed to evaluate the application-oriented NoSQL skills for hiring your NoSQL expert.

Use iMocha's assessment to hire skill fit, remove bias, and save money!

How it works

Test Summary

Test Duration

20

No. of Questions

10

Level of Expertise

Entry/Mid/Senior

Useful for hiring

NoSQL DataBase Engineer
Hadoop and NoSQL Operations Engineer
NoSQL Database Administrator
NoSQL Platform Engineer
NoSQL Data Analyst

Topics Covered

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Column-Store system

iMocha’s NoSQL online test helps recruiters and hiring managers to evaluate candidate’s understanding about column store system

Key-value solutions

Our NoSQL skill test assesses candidate’s understanding about key-value solution which simply uses key value method to store data where key serves as a unique identifier

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Graph-Based Solutions

Our NoSQL assessment test checks applicant’s knowledge about NoSQL graph database, database management technology that handles very large sets of structured, semi-structured or unstructured data

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Document-Store Id store system

This test evaluates candidate’s knowledge about Document-Store Id store which is a computer program and data storage system designed to store, retrieve and manage document-oriented information

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Sample Question

Choose from our 100,000+ questions library or add your own questions to make powerful custom tests.

Question types :

Multiple Option

Topic:

Difficulty:

Hard

Q 1. You have been asked to train « Naive Bayes model for spam detection dataset

Using Python command, what wil you add in the given code at XXXX to deciore, it and train your modal for the given dataset?

import numpy os np

X= nporroyll 3. 2b[1 21 [2.21.[3,21)
Y= nporray(fi.a,a.1))

XXXX

Question types :

Multiple Option

Topic:

Machine teaming

Difficulty:

Hard

Q 1. Q2 Lets assume that you have 6 Pandas DataFrome(af) in the below tole.

Index	Code	Open	High
0	AAPL	19877	70074
1	AAPL	19877	70074
2	AAPL	19877	70074
3	AAPL	19877	70074
4	AAPL	19877	70074

When the following commend is executed, what hoppens to the DatoFrome?

df= defiinat()
Y= nporray(fi.a,a.1))

Index	Code	Open	High
0	AAPL	19877	70074
1	AAPL	19877	70074
2	AAPL	19877	70074
3	AAPL	19877	70074
4	AAPL	19877	70074

Index	Code	Open	High
0	AAPL	19877	70074
1	AAPL	19877	70074
2	AAPL	19877	70074
3	AAPL	19877	70074
4	AAPL	19877	70074

it gives an error becouse of the third row which has on empty string.

None of these

Question types :

Multiple Option

Topic:

Difficulty:

Easy

Question:

Consider the given code snippet:

rowID (1,2,3)
login(‘jratt’, ‘pratt’, ‘dsmith’)
email(jratt@company.com’, ‘pratt@company.com’, ‘dsmith@company.com’)
accesslevel(3,2,1)
lastloggedon (null, ‘1/1/2015’, null)
building (‘NY’, ‘IL’, null)

You are attempting the following insert:

Insert into users (rowID, login, email, accesslevel, building) values (2, ‘btompson’,‘pratt@company.com’, 2, ‘IL’)

Why will it not work?

Options

The email is already in use.
The row ID is already in use.
The accesslevel is already in use.

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Mobile Programming

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