Data Science Interview Questions and Answers

Top 50 Data Science Interview Questions and Answers

 

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Data Science Interview Question and Answers

1. What are big data and data science?
2. What is a data science job?
3. What skills do I need to be a data scientist?
4. How can I become a data scientist?
5. Define the unit test with PyUnit?
6. What is the definition of the unit test?
7. What are iterators in Python?
8. Which objects are iterated in python?
9. What does ITER () do in Python?
10. What are generators in Python?
11. Which methods are defined for a class of iterators?
12. Why do we need generators in Python?
13. What is the return type of the function ID?
14. What is a C ++ iterator?
15. Why are generators used in Python?
16. Can you use a generator to create iterators?
17. What is a generating function?
18. What is the difference between iterator and generator in Python?
19. What are decorators in Python?
20. What skills do I need to be a data scientist?
21. What exactly does a data scientist do?
22. What are the types of business decisions?
23. How long does it take to become a data scientist?
24. Python is enough for data science ?
25. Python or R is better for data science?
26. Why is Python used in data science?
27. Which language is best for data science?
28. Does the data scientist need to know programming?
29. Who can be scientific data there are three general steps to becoming a data scientist?
30. What does a data scientist do?
31. Do You need a teacher to be a scientist?
32. What makes scientific data?
33. What is the science of data in simple words?
34. What is Data Science with Example?
35. Is Anaconda free?
36. Anaconda is a Wikipedia programming language?
37. How to run a PyCharm debugging?
38. PyCharm has a debugger?
39. How to run Django in PyCharm?
40. How do I open the terminal in PyCharm?
41. What is a Jupyter notebook?
42. Is the Jupyter notebook good for Python?
43. What is the Jupyter center ?
44. Is Jupyter open source?
45. What Jupyter used?
46. What is Jupyter ?
47. What does pip installation?
48. What are you employed PIP?
49. How long should a pip last?
50. What’s the difference between Pip and Pip3?

These are the Top Most Interview Question & Answer In 2019 

Python Training in Chennai -Slajobs

                              Best Python Training in Chennai

Python programming is not considered a rocket science anymore, thanks to the intensive training by SLA. Due to our profound training you can certainly gain foothold into lucrative career opportunities that assures hefty pay.

We understand the anxiety of the students and focus on providing them with a tight grip on the Python Programming from beginning.

You can land up in top-notch IT companies when you learn Python from an established Training Institute as SLA. We assure you of thorough learning wherein you can gain the skills and implement the most appropriate tactics at the proper time.

1. Our trainers handle the classes according to your level of expertise i.e. beginner or advanced. Our trainers’ knowledge is demonstrated through the success of our students.
2. Our Python courses are drafted by trainers who have immense expertise in Python. We consistently update our courses and maintain simplicity so that the courses reach our students in a thorough manner.
3. Our trainers listens to each and very trainee. They also clear the doubts then and there.
4. Once you complete this course you will apply this knowledge in the real world.
5. Concentration on job-related skills, interview preparation assistance, mock interviews, tie-ups with several MNCs etc are other key features of us.
6. Till now we have placed 65000+ students related to all our courses.

Scope of Python Course

Python has turned out to be a very popular language nowadays. In order to survive in the corporate scenario it becomes necessary to be updated with new languages that facilitate high level programming. While proficient programmers grasp Python easily, it is also not a difficult thing for the fresh programmers to learn Python, thanks to the expert coaching from SLA. At SLA, the trainers have hands-on experience on Python and give more attention to the individual requirements of the student.

Available Python Certifications

• Certified Associate in Python Programming
• Certified Professional in Python Programming

The candidate will get certification issued by the Python Institute after he or she successfully cracks the PCAP or PCPP exam in an authorized Pearson VUE Test Center. The candidate who wishes to obtain a professional-level credential (PCPP) must already have an associate-level credential (PCAP). Each Python certification cost is US$295/-.

Related Courses To Python Training

• Datascience Training
• R -Language Training in Chennai
• Machine Learning Training in Chennai
• SAS Training in Chennai
• Oracle Training in Chennai

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Kickstart Your Blockchain Technology - SLAJOBS

                                   BlockChain Training in Chennai

What makes Blockchain a special technology?
There is a great challenge for the Internet in the form of security, dependability and knowledge. This needs a solution and this is analysed through Blockchain globally.

Why Blockchain?
Value is of utmost importance to a business and blockchain holds great promise in this aspect. When we consider the case of Internet, its structure had made us to exchange information very conveniently and rapidly. In the same way, Blockchain could lead to a new means of computing that lets mostly financial value to be exchanged;. There is no doubt that the conventional business model would shift to a shared economy model in the near future.
Blockchain was the forerunner in establishing trust with anonymous identities and bringing in a new life to online transaction management..
Now lets see in what way blockchain is unique:

Decentralization
Blockchain doesnt’ depend on a central point of control. A single authority doesnt govern it and this makes the system fair and secure. Decentralization can be considered as the revolutionary trait of blockchain. Since blockchain is basically a ledger of information it becomes essential that the information being stored is genuine and accurate.

Transparency
The transparency of blockchain emerges from the reason that the transactions of each public address are open to see. Moreover it cannot be changed. This will form trust among all the nodes.

Immutability
Blockchain forms a permanent and unchangeable record of every transaction. The key is that a transaction can never be changed once you have decided on it. You can eventually record another transaction so that it changes its state but you can never mute the original transaction.

Distributed Ledger
The data is stored in a distributed ledger in Blockchain. What is a distributed ledger? It is a type of database that creates several copies of the same data and share it to the nodes available in the network . This enables the participants of the network to take control of the transactions. There is no involvement of centralized or third-party here.

Secure nature
Another feature that makes Blockchain a special technology is its security. Blockchain cannot be hacked since it uses public and private keys to secure the blocks formed on the ledger.
Each block of blockchain is highly encrypted and consists of public and private keys. Due to this there is no need of firewalls. The encryption assists in securing and maintaining the distinct feature of each block.

Now that we have seen the special features of blockchain, time will only give verdict as to how disruptive this revolutionary technology is.
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Contact : 8608700340

How to Face Technical Interview in IT Company

                                 Tips & Tricks For IT Graduates - SLAJOBS

Golden tips to face an interview for the first time

Appearing for job interview especially for the first time can be  an anxious experience. You may be trying to hide your tension behind a smile, but the other candidates will surely find it. Yes, they too are facing the same situation. Even the interviewer will understand your anxiety. Well, in order to mitigate your stress, we are here to give top tips for facing the first interview with ease:

Understand the nature of the company

Well, this is the owner of the most important tips that you must follow. You have to research a lot about the company before going to the interview and this is what the employer too expects. You have to know about what they are doing and know their vision. This can be got from the company’s website. Ensure that you know as much as you can so that you impress the employers at the first meeting itself. They will also learn that you are interested in the company.

Watch what you say in the tricky “Tell me yourself” section

This is the favorite question of all the employers and it prevalent even now. When the employer asks you to tell about yourself, ensure that you dont deviate from the point. Also dont tell your hobbies and interests in an elaborate manner. Talk mainly about your family, your education and work experience.

Maintain confidence and let is show in your attitude

You would have prepared well for the interview, but the success lies in behaving in a confident manner during the interview. This is quite a challenging task given that you are attending the interview for the first time. However, the key lies in pulling it off in an effortless manner. You have to act confident in such a way that the employer is impressed with you and realizes that you are the right fit for the job. All the employers know that you are taking up the interview for the first time; when they see you act confidently then they will surely appreciate it.

Be honest in your resume

This is an important point because this faking in your resume will surely hinder your career. Moroever, the interviewer would have handled innumerable interviews and would be able to make out when you lying. Hence, keep it real and provide details of only what you have accomplished in your resume.

Dress professionally

You can avoid gaudy colors and loud jewellery. Wear your best formal clothes and appear neat when attending the interview.

Show your eagerness to learn

One of the main negative attributes of employees is that they think that they know everything. But this is not the right attitude. Freshers are in the learning process and it is appreciated if they have the eagerness to learn. This will also be considered as as positive attitude by the employers.

Take time to answer and pause in between words

One of the mistakes that candidates do while attending interviews is that they tell everything in a full stretch. By doing so, they are prone to making mistakes. To avoid this, they can pause in between words and think twice before they provide the answer.

These tips will surely be one of the main factors that help you in winning a job. Face the interview with confidence and eliminate your anxiety. All the best!


For more Contact : 8608700340
Visit : slajobs.com

Dive into the World of SAS Technology

SAS Training Course in Chennai

Top Reasons to Learn SAS

Analytics is creating ripple now. It is being embraces in all sorts of industries. For example, you will find analytics being used in every place including aviation, predictive maintenance analysis etc. Even retail industries make use of analytics to enhance customer loyalty and provide unique offerings.

SAS programming is a dynamic data analytics tool that has proved its greatness every time. It has got a unique place as the market leader in offering innovative business intelligence, software and services. These eventually form a better quality of enterprise intelligence. 

SAS-old data analytical tool

SAS is an old data analytic tool and this assists it in turning out an experienced vendor which totally integrates top data warehousing, analytics and business intelligence application so as to derive intelligence from huge sets of data. 

Top reasons to learn SAS programming

• SAS offers tremendous job opportunities. There are several requirements of SAS in the present scenario.
• SAS is a fourth generation language and this adds to its value. Besides the fun factor the GUI, convenient access to multiple application also makes it a good language.
• SAS is a flexible and broad language . There are several ways of reading data files from several statistical packages. The numerous data files that are allowed on this platform are SPSS, Excel, etc.
• SAS does not pose any form of threat .
• Its not necessary that you have to forego all the other programming languges that you would have earlier aced while learning SAS.
• SAS consists of several input and output formats. Morever, this data analytics tool is very powerful and versatile.
• SAS is an understandable language and thsi makes it reasonably simple to debug.
• You can test and evaluate in a controlled environment the algorithm implemented in SAS before it is released.
• SAS can be edited only by the SAS organization since it is a closed source tool. This lets spontaenous customer support to happen.
• Data cannot be extracted from SAS without a license. This safeguards it from manipulation and acts as a driving force in embracing by big companies.

Advantages including increase in revenue, effective cost control and improved performance make competency in this software a highly wanted qualification for technical professionals.

SAS is always abreast with the latest technology. It can be conveniently integrated and this improves its usability and flexibility since it can interconnect with several technologies in a hassle free manner.

 

 

 

 

 

 

UIPATH Training for IT Graduates - 2019

           UIPATH TRAINING IN CHENNAI - SLAJOBS


What makes UiPath a unique Robotic Process Automation Tool?

Robotic Process Automation is billed to be a realiable process in different companies. Well, what do these software robots do? They interpret, initiate, compare, gain results and co-ordinate with other systems like a human. They do a lot of repetitive activities without being tired. The significant aspect is that they also dont commit any errors. Integration seems to be a cake walk for them and they are also easy to maintain.

 Some factors which we should consider while selecting an RPA tool are:

•  Scalability
•  Speed
• Intelligence
• Dependability

 Well, now we will see about UIPath and how it is unique.

About UiPath

UIPath is a completely structured software soltuon that is billed to automate all the routine and stressful tasks of the back office.

It is used to automate various web, desktop and other applications.

UiPath is used to automate business processes within an organization. It motivates businesses to perform in an optimal manner by automating any kind ofr repetitive tasks comprising

• l Data entry
• l Data migration
• l Screen scraping and web scraping
• l Testing

Significance of UiPath

•  The significance of UiPath is that it automates the manual and repetitive activities in less time in a cost-effective manner.
•  UiPath is great on usability because it can be used for several integration services functioning with different workflow.
• BPO automation can gain a lot from UiPath through the Citrix Automation.
•  Very less coding is required for UiPath.
• UiPath is touted to offer best cognitive services.
• Uipth consist of advanced features including work Queue. It has also a great scheduling mechanism to faciliate the workflow.
•  Quicker designs and efficient level of security are two important aspects of the tool.
• UiPath is a free software and is license free. It is developed with drag and drop work flow. The drag and drop features of UiPath is excellent.
•  Being extensible, it can automate any web or desktop application.
•  It lets global enterprises to frame, deploy and manage a comprehensive robotic workforce that mimics the staff in managing rules-based activities and eliminates the daily routine work.
•  Deployment management, change management, access control etc., are offered by UiPath. This adheres to enterprise security and governance best practices.  
•  The architecture of UiPath makes its convenient for several programmers to operate the same project at the same time.
•  UiPath has also enabled Python development in their platform.
• The community of UiPath is very active.

 UiPath Studio

 The UiPath Studio is a comprehensive software solution that lets you to automate your back office repetitive activities. It converts difficult activities into complete UI automation. This makes your work not only convenient but also quicker.

 UiPath Workflow Designer

 UiPath Workflow Designer is basically a visual guidance. It sets up automation with the help of flowcharts and diagrams.

The Workflow formed assists you in modeling processes of your business functions.

Witht the help of UiPath Workflow Designer you can setup automation with scarce or no understanding of programming.



UiPath Orchestrator

 This component is a dynamic tool which if used effectively can make the robot control a hassle free one.

 Conclusion

 UiPath has an easy learning curve compared to other RPA tools. It applies flow diagram approach to initiate a business flow from the coding angle. Though it has some cons including poor image recognition, improper functioning of selectors etc, its pros as mentioned above makes it one of the best RPA tools.

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Learn and Upgrade New Skills in 2019

Best Sql Server DBA Training in Chennai 

SLA that provides SQL Server Training, is one of the top Rated SQL Server DBA Training Institute in Chennai. We mostly focus on classroom training and it is taken care by proficient professionals.

The infrastructure and lab facilities are par excellence. Though there is theoretical knowledge we focus largely on practical knowledge wherein real-time application is implemented.

Being formed by Microsoft, MS SQL Server is a relational database management system. It is formed so as to store data as needed by different applications. The database administrators are trained in such a way that they utilize MS SQL Server to store and streamline the organization’s important data.

Why SQL Server DBA? 

  SQL Server is a complex software that Microsoft offers. You need to have a basic understanding of networks, programming and databases. The job prospects of the DBAs are very good. The profession of a DBA will sustain to be one of the best ones.

SQL Server Database Administrators are involved in the design, execution, and maintenance of SQL Server databases. It doesn’t stop with this; the DBA also has to create and scale databases for the purpose of potential data growth and efficiency.

  

The Key Features of SQL Server DBA Course
   The fees of the SQL Server DBA course is affordable and the course caters to the requirements of the students, whether they are looking out for a job or is a working professional. We ensure that we learn from the feedback gained from the students.

 

 1.100% placement assistance
 2.Small batch sizes for individual attention
 3.Interview grooming
 4.Practical-oriented courses
 5.Missed classes taken care of Flexible batch timings to suit the needs of the working professionals   
 6. Free Demo classes that acts as the perfect prelude for the quality of the training.

What are the Responsibilities of SQL Server DBA?

 * Understand the requirements of the user.
 *Take care of user access and security
 *Take into account the back-end streamlining of data and front-end accessibility for end-users
 *Make the logical design better so that it can be given the shape of a specific data model
 *Set up and test new versions of DBMS.
 *Adhere to the data standards
 *Manage access privileges and permissions
 *Create, handle and test recovery and back-up plans
 *Take care of capacity planning
 *Handle the security and disaster recovery elements of a database

 Who can Gain from the Power of SQL Server DBA? 

  

    We can implement the SQL server as the database for both small scale applications and large scale applications. This Relies on the data load and the presence of data. Those Individuals who are inclined in data modeling and architect profile can take up this field.

  

Job Opportunities in SQL Server DBA 

    SQL is an expert language that is formed to function with databases. The demand for SQL Server DBA is huge in the market since every industry works with the assistance of data. Hence, there is a great requirement for the candidate to be aware of his/her skills and perform in such a way that is gainful to his/her career.

SLA, the Best SQL Server DBA Training Institute in Chennai teaches the concepts of this program with relative ease.

An individual can opt for a career as database developer if he/she is competent in monitoring the structure, execution and maintenance of a database. Choosing the career as a data scientist can be better for those whose skill is inclined more towards data collection.

 SQL Certification Training 

  

The SQL Server DBA Certification Training that we offer is focused towards quality training and once the candidate completes the coaching, he/she can get a course completion certificate. The Certification is aligned with your career. We have tie-up with top MNCs which helps us to provide you with placement assistance.

   

For More Details : https://www.slajobs.com/sql-server-dba-training-in-chennai/ 

Contact :8608700340