CompTIA DataX DY0-001 Dumps in PDF

Free CompTIA DY0-001 Real Questions (page: 12)

Which of the following is a key difference between KNN and k-means machine-learning techniques?

  1. KNN operates exclusively on continuous data, while k-means can work with both continuous and categorical data.
  2. KNN performs better with longitudinal data sets, while k-means performs better with survey data sets.
  3. KNN is used for finding centroids, while k-means is used for finding nearest neighbors.
  4. KNN is used for classification, while k-means is used for clustering.

Answer(s): D

Explanation:

KNN is a supervised algorithm that assigns labels based on the closest labeled examples, whereas k- means is an unsupervised method that partitions data into clusters by finding centroids without using any pre-existing labels.



A data scientist needs to:

Build a predictive model that gives the likelihood that a car will get a flat tire.

Provide a data set of cars that had flat tires and cars that did not.

All the cars in the data set had sensors taking weekly measurements of tire pressure similar to the sensors that will be installed in the cars consumers drive.
Which of the following is the most immediate data concern?

  1. Granularity misalignment
  2. Multivariate outliers
  3. Insufficient domain expertise
  4. Lagged observations

Answer(s): D

Explanation:

Because tire-pressure sensors report only weekly measurements, you risk missing the critical pressure drop immediately preceding a flat. Those stale ("lagged") readings may not reflect the condition just before failure, undermining your model's ability to learn the true precursors to a flat tire.



The term "greedy algorithms" refers to machine-learning algorithms that:

  1. update priors as more data is seen.
  2. examine even/ node of a tree before making a decision.
  3. apply a theoretical model to the distribution of the data.
  4. make the locally optimal decision.

Answer(s): D

Explanation:

Greedy algorithms build the solution iteratively by choosing at each step the option that appears best at that moment, without reconsidering earlier choices.



A data scientist is deploying a model that needs to be accessed by multiple departments with minimal development effort by the departments.
Which of the following APIs would be best for the data scientist to use?

  1. SOAP
  2. RPC
  3. JSON
  4. REST

Answer(s): D

Explanation:

RESTful APIs use standard HTTP methods and lightweight data formats (typically JSON), making them easy for diverse teams to integrate with minimal effort and without heavy tooling.



Which of the following compute delivery models allows packaging of only critical dependencies while developing a reusable asset?

  1. Thin clients
  2. Containers
  3. Virtual machines
  4. Edge devices

Answer(s): B

Explanation:

Containers encapsulate just the application and its critical dependencies on a lightweight runtime, making the resulting asset portable and reusable without bundling an entire operating system.



A data analyst is analyzing data and would like to build conceptual associations.
Which of the following is the best way to accomplish this task?

  1. n-grams
  2. NER
  3. TF-IDF
  4. POS

Answer(s): A

Explanation:

n-grams capture contiguous sequences of words, revealing which terms co-occur and form meaningful multi-word concepts. By analyzing these frequent word combinations, you directly uncover conceptual associations in the text.



Which of the following belong in a presentation to the senior management team and/or C-suite executives? (Choose two.)

  1. Full literature reviews
  2. Code snippets
  3. Final recommendations
  4. High-level results
  5. Detailed explanations of statistical tests
  6. Security keys and login information

Answer(s): C

Explanation:

Senior leaders need actionable insights and the overarching outcomes, not the implementation details, so you present your key recommendations alongside a summary of results at a high level.



During EDA, a data scientist wants to look for patterns, such as linearity, in the dat

  1. Which of the following plots should the data scientist use?
  2. Violin
  3. Box-and-whisker
  4. Scatter
  5. Q-Q

Answer(s): C

Explanation:

Scatter plots display pairs of numeric values on two axes, letting you visually assess relationships and patterns, such as linear trends, between variables.



Share your comments for CompTIA DY0-001 exam with other users:

T
Tanuj Rana
7/22/2023 2:33:00 AM

please upload the question dump for professional machinelearning

F
Future practitioner
8/10/2023 1:26:00 PM

question 4 answer is c. this site shows the correct answer as b. "adopt a consumption model" is clearly a cost optimization design principle. looks like im done using this site to study!!!

A
Ace
8/3/2023 10:37:00 AM

number 52 answer is d

N
Nathan
12/17/2023 12:04:00 PM

just started preparing for my exam , and this site is so much help

C
Corey
12/29/2023 5:06:00 PM

question 35 is incorrect, the correct answer is c, it even states so: explanation: when a vm is infected with ransomware, you should not restore the vm to the infected vm. this is because the ransomware will still be present on the vm, and it will encrypt the files again. you should also not restore the vm to any vm within the companys subscription. this is because the ransomware could spread to other vms in the subscription. the best way to restore a vm that is infected with ransomware is to restore it to a new azure vm. this will ensure that the ransomware is not present on the new vm.

R
Rajender
10/18/2023 3:54:00 AM

i would like to take psm1 exam.

B
Blessious Phiri
8/14/2023 9:53:00 AM

cbd and pdb are key to the database

A
Alkaed
10/19/2022 10:41:00 AM

the purchase and download process is very much streamlined. the xengine application is very nice and user-friendly but there is always room for improvement.

D
Dave Gregen
9/4/2023 3:17:00 PM

please upload p_sapea_2023

S
Sarah
6/13/2023 1:42:00 PM

anyone use this? the question dont seem to follow other formats and terminology i have been studying im getting worried

S
Shuv
10/3/2023 8:19:00 AM

good questions

R
Reb974
8/5/2023 1:44:00 AM

hello are these questions valid for ms-102

M
Mchal
7/20/2023 3:38:00 AM

some questions are wrongly answered but its good nonetheless

S
Sonbir
8/8/2023 1:04:00 PM

how to get system serial number using intune

M
Manju
10/19/2023 1:19:00 PM

is it really helpful to pass the exam

L
LeAnne Hair
8/24/2023 12:47:00 PM

#229 in incorrect - all the customers require an annual review

A
Abdul SK
9/28/2023 11:42:00 PM

kindy upload

A
Aderonke
10/23/2023 12:53:00 PM

fantastic assessment on psm 1

S
SAJI
7/20/2023 2:51:00 AM

56 question correct answer a,b

R
Raj Kumar
10/23/2023 8:52:00 PM

thank you for providing the q bank

P
piyush keshari
7/7/2023 9:46:00 PM

true quesstions

B
B.A.J
11/6/2023 7:01:00 AM

i can´t believe ms asks things like this, seems to be only marketing material.

G
Guss
5/23/2023 12:28:00 PM

hi, could you please add the last update of ns0-527

R
Rond65
8/22/2023 4:39:00 PM

question #3 refers to vnet4 and vnet5. however, there is no vnet5 listed in the case study (testlet 2).

C
Cheers
12/13/2023 9:55:00 AM

sometimes it may be good some times it may be

S
Sumita Bose
7/21/2023 1:01:00 AM

qs 4 answer seems wrong- please check

A
Amit
9/7/2023 12:53:00 AM

very detailed explanation !

F
FisherGirl
5/16/2022 10:36:00 PM

the interactive nature of the test engine application makes the preparation process less boring.

C
Chiranthaka
9/20/2023 11:15:00 AM

very useful.

S
SK
7/15/2023 3:51:00 AM

complete question dump should be made available for practice.

G
Gamerrr420
5/25/2022 9:38:00 PM

i just passed my first exam. i got 2 exam dumps as part of the 50% sale. my second exam is under work. once i write that exam i report my result. but so far i am confident.

K
Kudu hgeur
9/21/2023 5:58:00 PM

nice create dewey stefen

A
Anorag
9/6/2023 9:24:00 AM

i just wrote this exam and it is still valid. the questions are exactly the same but there are about 4 or 5 questions that are answered incorrectly. so watch out for those. best of luck with your exam.

N
Nathan
1/10/2023 3:54:00 PM

passed my exam today. this is a good start to 2023.

AI Tutor 👋 I’m here to help!