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Most Popular DevOps Interview Questions and Answers

Until recently, development engineers often worked in isolation, restricting their knowledge and skillsets to coding and testing, while operations engineers would focus on delivery and infrastructure configuration jobs, with minimal knowledge about software development.

The culture of DevOps, although in its infancy, acts as the perfect bridge between IT development and operations and has become a popular methodology for software development in recent years.

If you’ve started cross-training to prepare for development and operations roles in the IT industry, you know it’s a challenging field that will take some real preparation to break into.

Include how DevOps is a value-added practice, where development and operations engineers join hands throughout the product or service lifecycle, right from the design stage to the point of deployment.

These are great examples of how DevOps can help organizations to ensure higher success rates for releases, reduce the lead time between bug fixes, streamline and continuous delivery through automation, and an overall reduction in manpower costs.

For example, if you have expertise in Git, you would tell the interviewer that Git is a distributed Version Control System (VCS) tool that allows the user to track file changes and revert to specific changes when required.

Discuss how Git’s distributed architecture gives it an added edge where developers make changes locally and can have the entire project history on their local Git repositories, which can be later shared with other team members.Now that you have mentioned VCS, be ready for the next obvious question.

VCS tools will help you recall previous versions and perform the following: Using VCS gives developers the flexibility to simultaneously work on a particular file and all modifications can be logically combined later.

Describe how the traditional approach to managing infrastructure is taking a back seat and how manual configurations, obsolete tools, and custom scripts are becoming less reliable.

When asked this question in an interview, get straight to the point by explaining that AWS is a cloud-based service provided by Amazon that ensures scalability through unlimited computing power and storage.

Similar to the codes written for other services, with the help of AWS, IaC allows developers to write, test, and maintain infrastructure entities in a descriptive manner, using formats such as JSON or YAML.

If you’re looking for answers to specific DevOps interview questions that aren’t addressed here, ask them in the comments below and our DevOps experts will help you craft the perfect answer.

Top 35 SAP ABAP Interview Questions Answers

To describe the logical structures of the objects that are used in application development ABAP 4 data dictionary is used.

The data classes are classified into following classes Master Data: The data in this class seldom change Transaction Data: The data can be changed often in this class Organization Data: This data is a customized data and is entered in the system when the system is configured.

It is used for performing table calculations on subset of database tables and also for re-organizing the content of database tables as per the users need.

The difference between structure and table is a) Data can be stored physically in Table, but a structure cannot b) Structure does not have primary key but table can have c) Table can have the technical attribute but the structure does not have 10) What is Smart Forms?

a) In ABAP dictionary, select object type Table, enter a table name and choose create b) A field maintenance screen for the table is displayed.

Now save your entries e) Now choose EXTRASàChange table category f) When a dialogue box appears you have to select the table type 'Pooled table' or 'Cluster table' g) After selecting the table, return to the field maintenance screen for the table.

By using the loop event the reports output can be formatted a) .at first b) .at new c) .at last 14) Explain the difference between Template and Table?

To enhance the output of the report, SAP provides a set of ALV function modules which can be used, and it also improves the functionality and readability of any report output.

Over here, buffer means memory area, table buffer means the table information is available on the application server.

To debug a script form, you have to follow SE71-->give the form name->utilities->activate debugger 26) What are different types of data dictionary objects?

The different types of data dictionary objects are: a) Tables b) Views c) Domain d) Data Element e) Type Groups f) Search Helps/Matchcode Objects g) Lock Objects h) Structures i) Table Types 27) What are the ways you can do the tuning?

There are two methods for modifying SAP standard tables a) Append structures b) Customizing includes 31) What is the difference between a 'Database index' and a 'Match code'?

By using modularization techniques, you can avoid redundancy if the program contains the same or similar blocks of statements or it is required to process the same function several times.

The different types of parameters are a) Formal Parameters: It is defined during the definition of subroutine with the 'FORM' statement b) Actual Parameters: It is specified during the call of a subroutine with the 'PERFORM' statement You can distinguish different kind of parameters by their functionality.

a) Semantic Integrity b) Relational Integrity c) Primary Key Integrity d) Value Set Integrity e) Foreign Key Integrity f) Operational Integrity

Top Obiee Interview Questions And Answers

OBIEE Comprises Presentation Services,Oracle BI Server : The user constructs sql and passes it to the Analytic Engine and then the Oracle BI (Analytic Engine) describes the physical sql to the Data sources and recover the data back to the Engine and presents to the presentation Services .

By clicking modify request and Narrative View and by giving @1 for the first column result and @2 for the 2nd column and so on and we can also give a heading for No Results by clicking the Narrative view.

In the NQSConfig.ini file use ENABLE under CACHE Section for System Level For tables, if we want to enable the cache at table level , open the repository in offline mode This should be different from the current repository and click enable or disable the cache .

Check if the table is already existing if so add in physical layer ,then click on BMM and then Presentation layer, then reload server metadata ,then it will be visible to all users.

This can be done by right clicking the dimension table and click create dimension and then we can manually define the hierarchy and its levels.

Examples Monthly Total Sales or Quarterly Sales To create a level based measure, create a new logical column based on the original measure.

Ibot is an arrangement agent, used to arrange reports to be sent across many devices such as email, pager, mobile, other devices etc.

A surrogate key, in the level aggregate table, simplifies this join and removes unnecessary columns from the fact table, resulting in a smaller-sized fact table.

In the BMM layer,we can create one logical table (fact) and add the 3 fact table as logical table source.

Java Development Kit (JDK), is a software package that contains the minimal set of tools needed to write, compile, debug, and run Java applets.

We can do Aggrigation navigation ,level base matrics, time series wizard, create new logical column, comlex join.

A combination of business logic security,catalog object level security, and data level security determines who has the ability to view data and objects, edit objects, and delete objects from the catalog.

It can perform software installation and configuration steps in the same process or separately in their own processes This release add the following administration command-line utilities :

An Oracle BI application consists of pre-built, industry-specific Oracl e BI interactive dashboards and Oracle BI reports that are built using industry best practices and address key functional areas within an organization.

Oracle BI applications are integrated with operational applications to provide business metrics in reports, in context with an organization’s business function and industry.

Repository stores the Meta data information.The extension of the repository file is “.rpd”.With OBIEE Server, all the rules needed for security,data modeling, aggregate navigation, caching, and connectivity is stored in metadata repositories.

A logical table source shows how the logical objects are mapped to the physical layer and can be mapped to physical tables, stored procedures and select statements.

Ex : If you observe that most of the queries are fired on aggregated values like yearly or monthly data rather that day level data then to speed up the report we can create an aggregate table containing month level and year level data and map it to the respective logical table and set the aggregation levels in the content tab of LTS.

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