Databricks DCAD : Databricks Certified Associate Developer for Apache Spark 3.0 Exam Dumps

Exam Dumps Organized by Richard

Latest 2023 Updated Databricks Databricks Certified Associate Developer for Apache Spark 3.0 Syllabus
DCAD Exam Dumps / Braindumps contains Actual Exam Questions

Practice Tests and Free VCE Software - Questions Updated on Daily Basis
Big Discount / Cheapest price & 100% Pass Guarantee

DCAD Test Center Questions : Download 100% Free DCAD exam Dumps (PDF and VCE)

Exam Number : DCAD
Exam Name : Databricks Certified Associate Developer for Apache Spark 3.0
Vendor Name : Databricks
Update : Click Here to Check Latest Update
Question Bank : Check Questions

Your victory guaranteed with DCAD Exam Cram
If you are interested in passing the Databricks DCAD test to advance your career, we offer easy route Databricks Certified Associate Developer for Apache Spark 3.0 test questions at killexams.com that ensure your success. Our DCAD Exam Questions are current, legitimate, and the latest updated versions, giving you a 100% unconditional guarantee of passing the test.

To pass Databricks DCAD exam and secure a high paying job, it is crucial to find a reliable and trustworthy DCAD Real Exam Questions provider online. While there are many options available, most of them sell outdated dumps that are of no use. To ensure that your research does not end up being a waste of time and money, it is recommended to directly visit killexams.com and download the free DCAD Cheatsheet sample questions to assess the quality. If satisfied, register and get a 3-month account to download the latest and valid DCAD Test Prep, which includes actual exam questions and answers. Great discounts are available, and it is also advisable to get the DCAD VCE exam simulator for practice.

Killexams.com is a trusted platform for obtaining the latest and up-to-date exam dumps for 2023 in order to pass Databricks DCAD exam with ease. The website features a team of experts who work to acquire real exam questions for DCAD to ensure your success. You can download the latest DCAD exam questions anytime, with a 100% refund guaranteed. While many companies offer DCAD Real Exam Questions, finding valid and updated 2023 DCAD Exam Cram can be challenging. It is crucial to think twice before relying on free dumps provided online.

With Killexams DCAD Test Prep, you can gain access to the complete DCAD questions bank and guaranteed exam success within just 5 minutes of download. The platform offers the latest and updated 2023 DCAD questions and answers, along with the 2023 DCAD syllabus. You can download DCAD exam files anywhere, with unlimited VCE exam simulator access and no limits on exam download. The purchase is 100% secure and confidential, and there are no hidden costs, monthly subscriptions, or auto-renewals. You can also enjoy free technical support, exam update intimation by email, and a 100% free Actual Questions sample questions. You can easily copy DCAD Real Exam Questions PDF to any device for reading and memorizing the real DCAD questions, even while on vacation or traveling. With consistent practice using the DCAD Test Prep and VCE exam simulator, you can confidently take the real DCAD exam.

DCAD Exam Format | DCAD Course Contents | DCAD Course Outline | DCAD Exam Syllabus | DCAD Exam Objectives

Exam Details for DCAD Databricks Certified Associate Developer for Apache Spark 3.0:

Number of Questions: The exam consists of approximately 60 multiple-choice and multiple-select questions.

Time Limit: The total time allocated for the exam is 90 minutes (1 hour and 30 minutes).

Passing Score: To pass the exam, you must achieve a minimum score of 70%.

Exam Format: The exam is conducted online and is proctored. You will be required to answer the questions within the allocated time frame.

Course Outline:

1. Spark Basics:
- Understanding Apache Spark architecture and components
- Working with RDDs (Resilient Distributed Datasets)
- Transformations and actions in Spark

2. Spark SQL:
- Working with structured data using Spark SQL
- Writing and executing SQL queries in Spark
- DataFrame operations and optimizations

3. Spark Streaming:
- Real-time data processing with Spark Streaming
- Windowed operations and time-based transformations
- Integration with external systems and sources

4. Spark Machine Learning (MLlib):
- Introduction to machine learning with Spark MLlib
- Feature extraction and transformation in Spark MLlib
- Model training and evaluation using Spark MLlib

5. Spark Graph Processing (GraphX):
- Working with graph data in Spark using GraphX
- Graph processing algorithms and operations
- Analyzing and visualizing graph data in Spark

6. Spark Performance Tuning and Optimization:
- Identifying and resolving performance bottlenecks in Spark applications
- Spark configuration and tuning techniques
- Optimization strategies for Spark data processing

Exam Objectives:

1. Understand the fundamentals of Apache Spark and its components.
2. Perform data processing and transformations using RDDs.
3. Utilize Spark SQL for structured data processing and querying.
4. Implement real-time data processing using Spark Streaming.
5. Apply machine learning techniques with Spark MLlib.
6. Analyze and process graph data using Spark GraphX.
7. Optimize and tune Spark applications for improved performance.

Exam Syllabus:

The exam syllabus covers the following topics:

1. Spark Basics
- Apache Spark architecture and components
- RDDs (Resilient Distributed Datasets)
- Transformations and actions in Spark

2. Spark SQL
- Spark SQL and structured data processing
- SQL queries and DataFrame operations
- Spark SQL optimizations

3. Spark Streaming
- Real-time data processing with Spark Streaming
- Windowed operations and time-based transformations
- Integration with external systems

4. Spark Machine Learning (MLlib)
- Introduction to machine learning with Spark MLlib
- Feature extraction and transformation
- Model training and evaluation

5. Spark Graph Processing (GraphX)
- Graph data processing in Spark using GraphX
- Graph algorithms and operations
- Graph analysis and visualization

6. Spark Performance Tuning and Optimization
- Performance bottlenecks and optimization techniques
- Spark configuration and tuning
- Optimization strategies for data processing

Killexams Review | Reputation | Testimonials | Feedback

Do you want dumps of DCAD exam to pass the exam?
Preparing for the DCAD practice exam can be challenging, especially when it comes to time management. However, killexams.com has solved this issue by providing time schedules to complete the syllabus easily. Their tutorial guides are essential for DCAD practice exams, so start your practice with killexams.com to achieve high marks.

Precisely equal questions, Is it possible?
If you want to ace your online DCAD exams, I highly recommend using killexams.com and their DCAD exam example papers. I scored 95% in the last check, and their product can help enhance your confidence level.

Are there real sources for DCAD study publications?
As a captain persuades the deliver and a pilot steers the plane, killexams.com acted as my captain or pilot and set me on the right course before my DCAD exam. Their instructions and guidance led me in the right direction and ultimately helped me achieve success in the exam. I will forever be obliged to this online test center for that moment of glory.

Can i obtain actual Questions & Answers updated DCAD exam?
From my experience, resolving the query papers one after the other will help you crack the exam. Killexams.com has very powerful test material, and I found their website to be very beneficial and helpful. Thank you, crew killexams, for helping me pass my DCAD exam. Their simulations are very similar to those in real tests, and they carry more weightage than other questions in the exam. After preparing from their program, it was effortless for me to solve all the simulations, and I found them trustworthy each time.

Very easy way to pass DCAD exam with questions and exam Simulator.
As an authority on the subject, I knew I needed help from Dumps if I wanted to pass a challenging exam like DCAD. I was correct. The killexams.com Dumps have an interesting technique that makes difficult subjects easy. They manage them in a quick, clean, and precise manner, making it easy to remember and recall the information. I did so and was able to answer all of the questions in half the time. Truly, killexams.com dumps are the right companion in need.

Databricks Associate Real Exam Questions

Exam Information

An exam proctor will begin reading exam instructions approximately 15 minutes before the exam start time. Students must be in the exam room with their exam at this time. If taking the exam on a laptop, it must be booted up and have passed the security check. Hand writers must not have a laptop with them in an exam room, unless otherwise allowed according to the professor’s instructions. A student entering the exam room after the proctor begins reading instructions will not receive additional time for booting up their laptop, passing the security check, and/or reading exam instructions.

When instructed by the proctor, write your exam number on the cover page of your exam, bluebooks, and any scratch paper you turn in as part of your exam. Handwritten exam answers must be written in blue books in blue or black ink. Number the bluebooks you use (1 of 1, 1 of 2, 2 of 2, etc.). Proctors will allow time to read the professor’s instructions. Other than counting the number of pages of the exam, students are not permitted to turn the page of an exam past the instructions page until the proctor instructs them to do so.

When taking a closed-book exam, no books, outlines, book bags, purses, or scratch paper (other than the scratch paper provided) may be at your seat during the exam. These items must be left outside of the exam room or in the front or sides of the exam room. Students may not begin to write anything, including on scratch paper, before the proctor begins a closed-book exam.

Students taking in-class exams are prohibited from having any electronic communication device, other than a laptop as allowed per the professor's instructions, during the exam. Cell phones and smart watches must be turned off during the exam and placed in a bag or backpack. Violations of this rule may be considered an Honor Code violation. A clock in each exam room will be the official timekeeper for the exam.

Non-alcoholic beverages are permitted in exam rooms; however, the container must have a lid.

After the exam instructions have been read and the exam begins, the proctor will remain in the room. Any student who has a question or problem during an exam should see the proctor.

Students may use the restroom or take a break during an exam. However, all exam materials must be left in the exam room and no additional time will be given. Students must sign in and out at the front of the room with the proctor.

Certified Automation Professional (CAP) Associate Exam Review Course (EC01)

The Certified Automation Professional® (CAP®) Associate Exam Review Course (EC01) is an intense review of the field of automation intended to help students in their preparation to take the CAP Associate exam. The exam is for recent graduates who have a four-year academic degree in a technical or technology field, a two-year technical degree with one year of experience in the automation field, or five years of work experience in the automation field.

For early-career automation professionals, the CAP Associate program recognizes interest and knowledge in automation. Though CAP Associate is not a certification program, it provides additional credentials and CAP Associates are eligible to sit for the CAP exam after four years of work experience in automation instead of the usual five years.

This course is provided as a preparation resource for the CAP Associate Certificate Program. Your course registration includes your registration for the exam (a 200 USD value). Pass the exam and earn the certificate. Learn more about the CAP Associate Certificate.

Who Should Take EC01?

This course is designed to help individuals prepare for the ISA CAP Associate certificate exam, including those who:

Have a four-year academic degree in a technical or technology field;

Have a two-year technical degree plus one year of work experience in the automation field; or

Have five years of work experience in the automation field

View Offerings by Format

This course includes a broad scope of learning objectives. Expand the topic headings below to view the learning objectives you will be able to achieve upon completing this course.

CAP Associate Basics

Recognize the benefits of earning CAP Associate certification

Explain the scope of CAP Associate certification

Recognize the six domains of CAP Associate and that each domain includes specific tasks

Explain characteristics of the CAP Associate exam

Process Instrumentation

Discuss measurement concepts in relation to process instrumentation

Discuss pressure measurement concepts, methods and considerations

Discuss level measurement concepts, methods and considerations

Discuss temperature measurement concepts, methods and considerations

Discuss flow measurement concepts, methods and considerations

Compare multivariable and smart transmitters

Analytical Instrumentation

Describe concepts, methods and considerations of analytical measurements including:

ORP

Specific ion

dissolved oxygen

moisture

gas analyzers

Continuous Control

Discuss important process dynamic characteristics that influence control loop behavior

Discuss the purpose and behavior of the various modes of a PID controller

Configure a controller for direct or reverse acting

Discuss controller tuning techniques and recognize the strong and weak points of each

Explain why feedback control, if used alone, will permit more variability in the process than will feedback control combined with the use of some advanced regulatory control technique

Discuss advanced regulatory control strategies, including ratio, cascade, feedforward, decoupling, and selector control

Control Valves and Analog Communications Part A

Explain the role of a control valve

Discuss the fundamentals of valve selection

Discuss the problems associated with cavitation, flashing, and sonic velocity

Explain the effects of hysteresis, deadband, and friction on the precision of a control valve

Describe the types of actuators and their advantages

Discuss the added functionality of smart valves

Part B

Define analog signal

Discuss sources of analog signals

Explain analog signal scaling

Describe the types of signaling standards

Explain why signaling is necessary

Explain analog-to-digital conversion

Control System Documentation and Control Equipment Part A

Identify the documents typically used to define the control system of a continuous process

Explain the sequence of document development for the control system of a continuous process

Understand the purpose and contents of a process P&ID

Explain the meaning of the symbols used to define control system components

Recognize the differences in how a loop is depicted on a P&ID and a loop diagram

Recognize the difference between mandatory and consensus standards

Explain the use of and the importance of instrument numbers

Part B

Explain the existence and purpose of control equipment

Describe the evolution of control systems

Describe the advantages of PLC control

Describe the purpose and application of SCADA systems, distributed control, and hybrid control

Explain the advantages of digital fieldbus communications

Basic, Discrete Sequencing and Manufacturing Control/Discrete and Sequencing Control Part A:

Describe actuation technologies and their control

Describe output interfacing techniques

Describe sensing technologies

Discuss remote and networked input and output technologies used in automation control

Part B:

Explain and understand concepts of discrete and sequential control

Understand the basic operational principles of PLCs

Explain interlocking and its uses

Explain the need for sequencing and its uses

Describe use of IEC 61131 programming languages

Explain basic selection criteria for PLC

Motor and Drive Control

Describe DC motor principles of operation and explain the differences between four major DC motor types

Describe AC motor principles of operation and explain the functions of key AC motor components

Compare and contrast AC versus DC motor advantages in variable speed applications

Identify DC drive principles of operation and typical motor stopping methods

Identify AC drive principles of operation with speed, torque and stopping control

Identify key VFD design features used in automation environments

Motion Control

Discuss the functions of motion control

Explain the difference between an absolute encoder and an incremental encoder

Explain what causes the device being controlled to not be at the correct position when the servo control shows zero error

Identify the control element and the measurement element in a motion control loop

Describe the difference between stepper motors and servo motors

Discuss how servo motors are controlled

Batch Control

Explain how batch control differs from traditional continuous process control

Describe batch control functionality

Identify the four levels of modules that make up key equipment entities and the functionality of each

Explain the concept of control as a function

Identify the principles of ANSI/ISA 88

Explain the importance of the recipe in batch processing

Alarm Management and Reliability, Safety, and Electrical Part A

Identify the main problems of alarm management

Explain the purpose and list some of the key components of an alarm philosophy

Explain the purpose and list some of the products of alarm rationalization

Identify the key elements of HMI design for alarm systems

Identify the typical performance metrics for alarm systems

Explain the purpose and components of an alarm management system

Part B

Explain the basics of MTTR, MTTF, MTBF

Discuss safe and dangerous failure modes

Identify the different types of redundancy and how they impact dangerous and safe failure modes

Identify the key elements of HMI design for alarm systems

Identify common cause and its impact on reliability

Determine testing intervals and its impact on availability

Process Safety and Safety Instrumented Systems

Explain the concept of SIS as a layer of protection and how the need is determined

Discuss the significance of SIL levels

Explain the steps in the safety instrumented system design lifecycle

Describe the two basic failure modes of safety systems

Compare and contrast technology logic systems used for safety systems

Identify common failures in field devices such as sensors and final elements

Explain the need for testing safety systems

Explain the need for management of change

Identify which systems are necessary to meet Safety Integrity Level requirements

Electrical Installations and Electrical Safety Part A

Ensure that automation processes do not fail due to faulty electrical installation practices

Explain the basics of groundingDiscuss the use of electrical circuit protection and enclosuresRecognize the importance of adherence to PE manufacturers’ installation requirements

Part B:

Select electrical equipment with appropriate protection from fire and shock hazards

Define the salient features of the most common types of protection against electrically initiated explosions and understand characteristics, design, and operation of each

Select electrical apparatus appropriate for use in a specific potentially hazardous location, and the materials to which it may be exposed

Identify intrinsic safety as a system-oriented protection concept rather than a device characteristic

Explain the differences between a dynamic model and a steady state model

Explain the classification of locations where combustible materials may be present

Industrial Networks

Explain the difference in model fidelity requirements

Recognize the need for field or lab measurements to correct models

Compare and contrast experimental and first principal models

Explain the risks of relying on historical data to build models

Explain the differences between a dynamic model and a steady state model

MES Integration and Network Security Part A:

Identify the level of activities in a typical manufacturing company

Explain the information that is exchanged between business processes and manufacturing processes

Identify work centers and work units and their relationship to manufacturing operations management activities

Compare and contrast different MES systems based on the functions they support

Identify maintenance, quality, and inventory operations management functions in your organization

Explain the criteria used to define the specific boundary between business process functions and manufacturing operations management functions

Part B:

Discuss the need for security and the general approaches that are used to achieve it

Explain the steps in developing a security program including risk exam and developing an audit program

Describe the security approaches of authentication/ authorization, filtering/blocking, and encryption

Data Management

Describe the structure of a typical process database

Design a database structure to support desired uses of the data

Recognize the special requirements of real-time process databases

Estimate database storage requirements

Perform database sorts and searches effectively

Generate complete, useful documentation for a process database

Deployment and Operation

Explain the importance of safety considerations during startup

Explain the areas for instrument commissioning

Explain the use of Factory Acceptance Testing (FAT)

Explain the use of Site Acceptance Testing (SAT)

Troubleshooting and Maintenance Part A:

Explain the logical framework that underlies troubleshooting

Explain safety aspects of troubleshooting

Explain the seven-step troubleshooting procedure

Discuss various troubleshooting techniques

Explain how “out-of-the-box” thinking applies to troubleshooting

Part B:

Discuss the importance of maintenance to optimize life cycle costs and profits

Establish metric to measure your organization’s performance for comparison to benchmarks and for continuous improvement

Discuss guidelines for evaluating and supporting equipment

Recognize reliability and availability as the most important goals of maintenance

Identify different approaches to maintenance

Recommended Reading A Guide to the Automation Body of Knowledge, Third EditionEdited by Nicholas P. Sands, PE, CAP, ISA Fellow, and Ian Verhappen, P Eng, CAP, ISA Fellow

Can you answer the SATs test questions that left pupils 'in tears'? Take the controversial reading exam that has sparked fury among parents and promises of a probe by the ...

A SATs reading exam with tricky questions and language reportedly left Year 6 children 'in tears' last week

MailOnline has included the full paper with three dense texts and 38 questions for you to try at home

By Connor Stringer

Published: 19:32 EDT, 18 May 2023 | Updated: 19:40 EDT, 18 May 2023

These are the tough SAT questions that left some pupils in tears.

Hundreds of parents and teachers claimed that last week's reading exam for Year 6 pupils - aged ten or 11 - was too difficult.

Schools said it was so tricky that staff also struggled to understand the questions.

And there were claims the English reading test booklet included 'GCSE-level' questions, with even high-ability pupils unable to finish the paper.

Based on three dense texts, the paper, published Thursday, has 38 questions and expects pupils to understand words like 'hotspot' and 'eradicated'.

Youngsters are also asked to find similar words to 'vulnerable' and 'unmistakable'.

The paper includes a passage from a look with a '13-18 reading age'.

File photo of primary school children raising their hands in class. The Mail has included questions from the Year 6 Sats reading test that left pupils 'in tears'

Schools minister Nick Gibb said he would look at the exam which has been accused of 'undermining' youngsters' confidence.

The Mail has selected some of the more difficult questions in the exam so you can try them for yourself.

But we have highlighted the relevant extract for each answer, whereas the pupils would have had to find it among hundreds of words of text.

The National Association of Head Teachers, which represents heads at the majority of primary schools said it planned to complain to Ofqual, the exams regulator.

Sarah Hannafin, from the union, said: 'Members have told us that the choice of texts was not accessible for the wide range of experiences and backgrounds children have and the difficulty was beyond previous tests, leaving children upset, and even staff struggling to understand the questions.'

But the Department for Education last night indicated that the exam was of 'similar difficulty to previous years'.

A blog post on its website read: 'It takes three years to create appropriate tests.

During the process, the texts and questions are also rigorously trialled twice, with a nationally representative sample of year 6 pupils.

In the second, technical trial, more than a thousand pupils see each question.

'Evidence from these processes indicated that the tests were of similar difficulty to previous years.

As a result, we are confident the test was set to an appropriate level of difficulty.'

Elsewhere, a leading schools boss said tough exam were 'absolutely right'.

Mouhssin Ismail, regional director and executive principal at STAR Academies wrote on Twitter: 'Surely, one of the solutions is to provide pupils with more mock exams which develop their exam resilience.

'Exams are meant to assess a full range of abilities, so being tough for some is absolutely right.'

You can see the full reading booklet, written questions and marking scheme below:

Unquestionably it is hard assignment to pick dependable certification questions/answers assets regarding review, reputation and validity since individuals get sham because of picking incorrectly benefit. Killexams.com ensure to serve its customers best to its assets concerning exam dumps update and validity. The vast majority of other's sham report dissension customers come to us for the brain dumps and pass their exams joyfully and effortlessly. We never trade off on our review, reputation and quality on the grounds that killexams review, killexams reputation and killexams customer certainty is imperative to us. Uniquely we deal with killexams.com review, killexams.com reputation, killexams.com sham report objection, killexams.com trust, killexams.com validity, killexams.com report and killexams.com scam. On the off chance that you see any false report posted by our rivals with the name killexams sham report grievance web, killexams.com sham report, killexams.com scam, killexams.com protest or something like this, simply remember there are constantly awful individuals harming reputation of good administrations because of their advantages. There are a huge number of fulfilled clients that pass their exams utilizing killexams.com brain dumps, killexams PDF questions, killexams hone questions, killexams exam simulator. Visit Killexams.com, our specimen questions and test brain dumps, our exam simulator and you will realize that killexams.com is the best brain dumps site.

Which is the best dumps website?
Absolutely yes, Killexams is 100 % legit in addition to fully dependable. There are several options that makes killexams.com authentic and genuine. It provides knowledgeable and 100 % valid exam dumps that contain real exams questions and answers. Price is suprisingly low as compared to the vast majority of services on internet. The questions and answers are current on typical basis having most recent brain dumps. Killexams account make and products delivery is very fast. Document downloading is usually unlimited and incredibly fast. Assistance is avaiable via Livechat and Email address. These are the features that makes killexams.com a sturdy website that come with exam dumps with real exams questions.

Is killexams.com test material dependable?
There are several Questions and Answers provider in the market claiming that they provide Actual Exam Questions, Braindumps, Practice Tests, Study Guides, cheat sheet and many other names, but most of them are re-sellers that do not update their contents frequently. Killexams.com is best website of Year 2023 that understands the issue candidates face when they spend their time studying obsolete contents taken from free pdf download sites or reseller sites. Thats why killexams.com update Exam Questions and Answers with the same frequency as they are updated in Real Test. Exam dumps provided by killexams.com are Reliable, Up-to-date and validated by Certified Professionals. They maintain Question Bank of valid Questions that is kept up-to-date by checking update on daily basis.

If you want to Pass your Exam Fast with improvement in your knowledge about latest course contents and topics of new syllabus, We recommend to Download PDF Exam Questions from killexams.com and get ready for actual exam. When you feel that you should register for Premium Version, Just choose visit killexams.com and register, you will receive your Username/Password in your Email within 5 to 10 minutes. All the future updates and changes in Questions and Answers will be provided in your Download Account. You can download Premium Exam Dumps files as many times as you want, There is no limit.

Killexams.com has provided VCE Practice Test Software to Practice your Exam by Taking Test Frequently. It asks the Real Exam Questions and Marks Your Progress. You can take test as many times as you want. There is no limit. It will make your test prep very fast and effective. When you start getting 100% Marks with complete Pool of Questions, you will be ready to take Actual Test. Go register for Test in Test Center and Enjoy your Success.

Other Databricks Exam Dumps

DCAD sample test |

Best Exam Dumps You Ever Experienced

References :

Back to Main Page

Databricks DCAD : Databricks Certified Associate Developer for Apache Spark 3.0 Exam Dumps

Latest 2023 Updated Databricks Databricks Certified Associate Developer for Apache Spark 3.0 Syllabus DCAD Exam Dumps / Braindumps contains Actual Exam Questions

Practice Tests and Free VCE Software - Questions Updated on Daily BasisBig Discount / Cheapest price & 100% Pass Guarantee

DCAD Exam Format | DCAD Course Contents | DCAD Course Outline | DCAD Exam Syllabus | DCAD Exam Objectives

Killexams Review | Reputation | Testimonials | Feedback

Databricks Associate Real Exam Questions

Exam Information

Certified Automation Professional (CAP) Associate Exam Review Course (EC01)

Can you answer the SATs test questions that left pupils 'in tears'? Take the controversial reading exam that has sparked fury among parents and promises of a probe by the ...

Other Databricks Exam Dumps

Best Exam Dumps You Ever Experienced

References :

Latest 2023 Updated Databricks Databricks Certified Associate Developer for Apache Spark 3.0 Syllabus
DCAD Exam Dumps / Braindumps contains Actual Exam Questions

Practice Tests and Free VCE Software - Questions Updated on Daily Basis
Big Discount / Cheapest price & 100% Pass Guarantee