Most Recent Snowflake COF-C02 Exam Questions & Answers

Prepare for the Snowflake SnowPro Core Certification Exam exam with our extensive collection of questions and answers. These practice Q&A are updated according to the latest syllabus, providing you with the tools needed to review and test your knowledge.

QA4Exam focus on the latest syllabus and exam objectives, our practice Q&A are designed to help you identify key topics and solidify your understanding. By focusing on the core curriculum, These Questions & Answers helps you cover all the essential topics, ensuring you're well-prepared for every section of the exam. Each question comes with a detailed explanation, offering valuable insights and helping you to learn from your mistakes. Whether you're looking to assess your progress or dive deeper into complex topics, our updated Q&A will provide the support you need to confidently approach the Snowflake COF-C02 exam and achieve success.

The questions for COF-C02 were last updated on Nov 20, 2024.

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Question No. 1

How can the Query Profile be used to troubleshoot a problematic query?

AIt will indicate if a virtual warehouse memory is too small to run the query

BIt will indicate if a user lacks the privileges needed to run the query.

CIt will indicate if a virtual warehouse is in auto-scale mode

DIt will indicate if the user has enough Snowflake credits to run the query

Show Answer

Correct Answer: A

The Query Profile in Snowflake provides detailed insights into the execution of a query. It helps in troubleshooting performance issues by showing the steps of the query execution and the resources consumed. One of the key aspects it reveals is whether the virtual warehouse memory was sufficient for the query.

Access Query Profile: Navigate to the Query History page and select the query you want to analyze.

Examine Query Execution Steps: The Query Profile displays the different stages of the query execution, including the time taken and resources used at each step.

Identify Memory Issues: Look for indicators of memory issues, such as spilling to disk or memory errors, which suggest that the virtual warehouse memory might be too small.

References:

Snowflake Documentation: Query Profile

Snowflake Documentation: Optimizing Queries

Question No. 2

What computer language can be selected when creating User-Defined Functions (UDFs) using the Snowpark API?

ASwift

BJavaScript

CPython

DSQL

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Correct Answer: C

The Snowpark API allows developers to create User-Defined Functions (UDFs) in various languages, including Python, which is known for its ease of use and wide adoption in data-related tasks.References:Based on general programming and cloud data service knowledge as of 2021.

Question No. 3

Which commands can only be executed using SnowSQL? (Select TWO).

ACOPY INTO

BGET

CLIST

DPUT

EREMOVE

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Correct Answer: C, D

TheLISTandPUTcommands are specific to SnowSQL and cannot be executed in the web interface or other SQL clients.LISTis used to display the contents of a stage, andPUTis used to upload files to a stage. References: [COF-C02] SnowPro Core Certification Exam Study Guide

Question No. 4

Which of the following is an example of an operation that can be completed without requiring compute, assuming no queries have been executed previously?

ASELECT SUM (ORDER_AMT) FROM SALES;

BSELECT AVG(ORDER_QTY) FROM SALES;

CSELECT MIN(ORDER_AMT) FROM SALES;

DSELECT ORDER_AMT * ORDER_QTY FROM SALES;

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Correct Answer: B

Operations that do not require compute resources are typically those that can leverage previously cached results. However, if no queries have been executed previously, all the given operations would require compute to execute.It's important to note that certain operations like DDL statements and queries that hit the result cache do not consume compute credits2.

Question No. 5

What factors impact storage costs in Snowflake? (Select TWO).

AThe account type

BThe storage file format

CThe cloud region used by the account

DThe type of data being stored

EThe cloud platform being used

Show Answer

Correct Answer: A, C

The factors that impact storage costs in Snowflake include the account type (Capacity or On Demand) and the cloud region used by the account.These factors determine the rate at which storage is billed, with different regions potentially having different rates3.

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