An Agile coach is responsible for Agile transition/transformation within teams and an organization. Agile coach gets identified or hired while transitioning from their existing working practices, such as Waterfall, into working with the Agile values and principles. They usually have much experience with different Agile methodologies, such as Scrum, XP, Kanban, Large-Scale Scrum, and Scaled Agile Framework. They are generally proficient in coaching and mentoring and can guide and help people figure out the right solutions for their challenges.
Compared with traditional management approaches, agile offers several significant benefits. Agile promotes self-management, and self-management increases productivity and satisfaction among staff. Agile is inspired by lean thinking that minimizes waste. An agile way of working improves visibility and helps in continually adapting to customers' changing priorities. Agile enhances customer engagement and satisfaction, brings the most valuable products and features to market faster and more predictably, and reduces risk.
Agile is a set of values and principles to respond to change faster while developing a product. Scrum is a framework to apply all these values and principles. Scrum has been around since 1995, although it gained more popularity in the last 10-12 years as many organizations get attracted towards it after the 2008 financial crisis. The agile manifesto was written in 2001 by 17 software professionals and brined all popular empirical approaches under a single umbrella to develop software products. Scrum is not the only way to adopt these values and principles but is most popular on the name agile methods. There are others like Extreme Programming, Large-Scale Scrum, Scaled Agile Framework, and Lean Software Development.
Here are some common challenges faced by corporate while transitioning to agile.
• Lack of agile knowledge: Resistance from the employee due to lack of knowledge and benefit that agile brings to them.
• Cross-functional team: Cross-functional team formation is challenging in many organizations as employees have worked in a single function for a long time.
• Self-organization: This is also due to habit as employees have been in command and control conditions for a long time.
• Ownership: Lack of support from senior management, as many still believe it is a job for IT.
• Lack of Agile Coaches: Successful transition needs support from experienced agile coaches. Lack of agile coaches or inexperienced agile coaches takes more time than expected.
To view the full blog and this blog "Agile Coach Interview Questions" is originally published on Agilemania website.
Android Interview Questions and Answers from Beginner to Advanced level
DataFlair is committed to provide you all the resources to make you an android professional. We started with android tutorials along with practicals, then we published Real-time android projects along with source code. Now, we come up with frequently asked android interview questions, which will help you in showing expertise in your next interview.
Android – one of the hottest technologies, which is having a bright future. Get ready to crack your next interview with the following android interview questions. These interview questions start with basic and cover deep concepts along with advanced topics.
1. What is Android?
Android is an open-source mobile operating system that is based on the modified versions of Linux kernel. Though it was mainly designed for smartphones, now it is being used for Tablets, Televisions, Smartwatches, and other Android wearables.
2. Who is the inventor of Android Technology?
The inventors of Android Technology are- Andry Rubin, Nick Sears, and Rich Miner.
3. What is the latest version of Android?
The latest version of Android is Android 10.0, known as Android Q. The upcoming major Android release is Android 11, which is the 18th version of Android. [Note: Keep checking the versions, it is as of June 2020.]
4. How many Android versions can you recall right now?
Till now, there are 17 versions of Android, which have their names in alphabetical order. The 18th version of Android is also going to come later this year. The versions of Android are here:
5. Explain the Android Architecture with its components.
This is a popular android developer interview question
Android Architecture consists of 5 components that are-
a. Linux Kernel: It is the foundation of the Android Architecture that resides at the lowest level. It provides the level of abstraction for hardware devices and upper layer components. Linux Kernel also provides various important hardware drivers that act as software interfaces for hardwares like camera, bluetooth, etc.
b. Native Libraries: These are the libraries for Android that are written in C/C++. These libraries are useful to build many core services like ART and HAL. It provides support for core features.
c. Android Runtime: It is an Android Runtime Environment. Android Operating System uses it during the execution of the app. It performs the translation of the application bytecode into the native instructions. The runtime environment of the device then executes these native instructions.
d. Application Framework: Application Framework provides many java classes and interfaces for app development. And it also provides various high-level services. This complete Application framework makes use of Java.
e. Applications: This is the topmost layer of Android Architecture. It provides applications for the end-user, so they can use the android device and compute the tasks.
6. What are the services that the Application framework provides?
The Android application framework has the following key services-
a. Activity Manager: It uses testing and debugging methods.
b. Content provider: It provides the data from application to other layers.
c. Resource Manager: This provides users access to resources.
d. Notification Manager: This gives notification to the users regarding actions taking place in the background.
e. View System: It is the base class for widgets, and it is also responsible for event handling.
7. What are the important features of Linux Kernel?
The important features of the Linux Kernel are as follows:
a. Power Management: Linux Kernel does power management to enhance and improve the battery life of the device.
b. Memory Management: It is useful for the maximum utilization of the available memory of the device.
c. Device Management: It includes managing all the hardware device drivers. It maximizes the utilization of the available resources.
d. Security: It ensures that no application has any such permission that it affects any other application in order to maintain security.
e. Multi-tasking: Multi-tasking provides the users the ease of doing multiple tasks at the same time.
8. What are the building blocks of an Android Application?
This is a popular android interview question for freshers.
The main components of any Android application are- Activity, Services, Content Provider, and Broadcast Receiver. You can understand them as follows:
a. Activity- It is a class that acts as the entry point representing a single screen to the user. It is like a window to show the user interface.
b. Services- Services are the longest-running component that runs in the background.
c. Content Provider- The content provider is an essential component that allows apps to share data between themselves.
d. Broadcast receivers- Broadcast receiver is another most crucial application component. It helps the apps to receive and respond to broadcast messages from the system or some other application.
9. What are the important components of Android Application?
The Components of Android application are listed below:
10. What are the widgets?
Widgets are the variations of Broadcast receivers. They are an important part of home screen customization. They often display some data and also allow users to perform actions on them. Mostly they display the app icon on the screen.
11. Can you name some types of widgets?
Mentioned below are the types of widgets-
a. Informative Widgets: These widgets show some important information. Like, the clock widget or a weather widget.
b. Collective Widgets: They are the collection of some types of elements. For example, a music widget that lets us change, skip, or forward the song.
c. Control Widgets: These widgets help us control the actions within the application through it. Like an email widget that helps check the recent mails.
d. Hybrid Widgets: Hybrid widgets are those that consist of at least two or more types of widgets.
12. What are Intents?
Intents are an important part of Android Applications. They enable communication between components of the same application as well as separate applications. The Intent signals the Android system about a certain event that has occurred.
13. Explain the types of intents briefly?
Intent is of three types that are-
a. Implicit Intents: Implicit intents are those in which there is no description of the component name but only the action.
b. Explicit Intents: In explicit intents, the target component is present by declaring the name of the component.
c. Pending Intents: These are those intents that act as a shield over the Intent objects. It covers the intent objects and grants permission to the external app components to access them.
14. What is a View?
A view is an important building block that helps in designing the user interface of the application. It can be a rectangular box or a circular shape, for example, Text View, Edit Text, Buttons, etc. Views occupy a certain area of the screen, and it is also responsible for event handling. A view is the superclass of all the graphical user interface components.
15. What do you understand by View Group?
It is the subclass of the ViewClass. It gives an invisible container to hold layouts or views. You can understand view groups as special views that are capable of holding other views, that are Child View.
16. What do you understand about Shared Preferences?
It is a simple mechanism for data storage in Android. In this, there is no need to create files, and using APIs, it stores the data in XML files. It stores the data in the pair of key-values. SharedPreferences class lets the user save the values and retrieve them when required. Using SharedPreferences we can save primitive data like- boolean, float, integer, string and long.
17. What is a Notification?
A notification is just like a message that shows up outside the Application UI to provide reminders to the users. They remind the user about a message received, or some other timely information from the app.
18. Give names of Notification types.
There are three types of notifications namely-
a. Toast Notification- This notification is the one that fades away sometime after it pops up.
b. Status Notification- This notification stays till the user takes some action on it.
c. Dialog Notification- This notification is the result of an Active Activity.
19. What are fragments?
A fragment is a part of the complete user interface. These are present in Activity, and an activity can have one or more fragments at the same time. We can reuse a fragment in multiple activities as well.
20. What are the types of fragments?
There are three types of fragments that are: Single Fragment, List Fragment, Fragment Transactions.
21. What are Layout XML files?
Layout XML files contain the structure for the user interface of the application. The XML file also contains various different layouts and views, and they also specify various GUI components that are there in Activity or fragments.
22. What are Resources in Android Application?
The resources in Android Apps defines images, texts, strings, colors, etc. Everything in resources directory is referenced in the source code of the app so that we can use them.
23. Can you develop Android Apps with languages other than Java? If so, name some.
Yes, there are many languages that we can work with, for the development of Android Applications. To name some, I would say Java, Python, C, C++, Kotlin, C#, Corona/LUA.
24. What are the states of the Activity Lifecycle?
Activity lifecycle has the following four stages-
a. Running State: As soon as the activity starts, it is the first state.
b. Paused State: When some other activity starts without closing the previous one, the running activity turns into the Paused state.
c. Resume State: When the activity opens again after being in pause state, it comes into the Resume State.
d. Stopped State: When the user closes the application or stops using it, the activity goes to the Stopped state.
25. What are some methods of Activity?
The methods of Activity are as follows:
26. How can you launch an activity in Android?
We launch an activity using Intents. For this we need to use intent as follows:
27. What is the service lifecycle?
There are two states of a service that are-
a. Started State: This is when the service starts its execution. A Services come in start state only through the startService() method.
b. Bounded State: A service is in the bounded state when it calls the method bindService().
28. What are some methods of Services?
The methods of service are as follows-
29. What are the types of Broadcast?
Broadcasts are of two types that are-
a. Ordered Broadcast: Ordered broadcasts are Synchronous and work in a proper order. It decides the order by using the priority assigned to the broadcasts.
b. Normal Broadcast: These are asynchronous and unordered. They are more efficient as they run unorderly and all at once. But, they lack full utilization of the results.
30. What are useful impotent folders in Android?
The impotent folders in an Android application are-
31. What are the important files for Android Application when working on Android Studio?
This is an important android studio interview question
There are following three files that we need to work on for an application to work-
a. The AndroidManifest.xml file: It has all the information about the application.
b. The MainActivity.java file: It is the app file that actually gets converted to the dalvik executable and runs the application. It is written in java.
c. The Activity_main.xml file: It is the layout file that is available in the res/layout directory. It is another mostly used file while developing the application.
32. Which database do you use for Android Application development?
The database that we use for Android Applications is SQLite. It is because SQLite is lightweight and specially developed for Android Apps. SQLite works the same way as SQL using the same commands.
33. Tell us some features of Android OS.
The best features of Android include-
34. Why did you learn Android development?
Learning Android Studio is a good idea because of the following-
35. What are the different ways of storage supported in Android?
The various storage ways supported in Android are as follows:
36. What are layouts?
Layout is nothing but arrangements of elements on the device screen. These elements can be images, tests, videos, anything. They basically define the structure of the Android user interface to make it user friendly.
37. How many layout types are there?
The type of layouts used in Android Apps are as follows:
38. What is an APK?
An APK stands for Android Package that is a file format of Android Applications. Android OS uses this package for the distribution and installation of the Android Application.
39. What is an Android Manifest file?
The manifest file describes all the essential information about the project application for build tools, Android operating system, and google play. This file is a must for every Android project that we develop, and it is present in the root of the project source set.
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offers powerful features for the rapid development of deployment-ready applications. It is the most used and best java framework for the development of scalable microservices and web applications.
If you want to become a domain expert, you have come to the right place. We have curated some the most repeatedly asked spring boot interview questions and answers to help you ace the interview.
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The canvas, created by Avi Schneier and the Scrum Inc team , encourages the team to ask questions that go to the heart of team dynamics, from the norms and guidelines they agree to abide by, to the skills they bring to the table and the skills they want to learn from each other, to how they celebrate success and learn from failure. In this article, I will discuss how I adapted Avi’s original canvas to the needs of the teams I was coaching, elaborate on the different elements of a working agreement, and share with you a step-by-step guide to facilitating collaborative working agreement development workshops.
Having a team name that all team members can identify with is one aspect of establishing the team’s unique identity. A Team name should be created (and agreed on) by the team on their own. There are many anecdotal accounts about how coming together under a common team name helps the team run much more smoothly and efficiently (Plus, it’s fun to come up with a great team name together!) In a recent working agreement canvas workshop I facilitated, and since there were so many Harry Potter fans in the group, they chose to be called _Team Slytherin. _You should’ve heard the laughs as they attempted to come up with that name!
The Motto is the team’s catch-phrase. Some teams opt for something that captures in a few words what they consider the essence of good teamwork, while others prefer something more tongue-in-cheek. I love to observe the dynamic of a team and how they learn more about each other’s personalities as they try to come up with a motto.
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In addition to the customer value-adding Epics and User stories you typically brainstorm in story writing workshops, the team needs to consider & plan for how to meet critical non-functional requirements that are also essential to the success of the product. These include things like performance, security, reliability, etc. To truly differentiate your product from the competition, think about NFRs not merely as compliance must-haves, but as distinguishing factors and essential contributors to the value proposition of the product. A big part of why our product is superior to the competition could be because it is more secure, more reliable, faster, etc.
NFRs include things like performance, flexibility, usability, maintainability, audit, logging, data migration, availability, reliability, recoverability, traffic/user volume, security, globalization/localization, etc.
In practice, we need to look at each of these non-functional requirements and answer 3 broad questions:
Let us take usability as an example: here is an excerpt of the Definition of Success for the Usability NFR from a team I coached recently:
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Scrum has proven time and again to be the most popular framework for software development. Given that software is eating the world, a seasoned Scrum Master is nowadays in high demand. And that demand causes the market-entry of new professionals from other project management branches, probably believing that reading one or two Scrum books will be sufficient. Which makes a suitable set of Scrum Master interview question more necessary than ever to help you identify suitable candidates
If you are looking to fill a position for a Scrum Master (or agile coach) in your organization, you may find the following Scrum Master interview questions useful to identify the right candidate. They are derived from my fourteen years of practical experience with XP as well as Scrum, serving both as Product Owner and Scrum Master as well as interviewing dozens of Scrum Master candidates on behalf of my clients.
Maybe ‘Agile’ in general is a fad as opposed to a trend. Though whatever the case, we can say for sure that Scrum is very popular in software development. Demand for seasoned Scrum practitioners and the entry of new professionals into the market are both on the rise.
If you are looking to hire a Scrum Master for your organization, you will find the following interview questions useful in identifying the right candidate. Being cognizant of what to listen for in a candidate’s answers to these questions will allow you, as an interviewer, to more quickly understand not only a candidate’s familiarity with Scrum — but also their agile mindset. Given the complexity of applying agile practices to any organization, multiple-choice questions are mostly insufficient when you need to discern a candidate’s agile mindset.
The interview guide comprises eight topics, from the role and artifacts to collaboration with the Product Owner to Scrum anti-patterns. This article will cover the largest category of them — the role of the Scrum Master:
The Agile Manifesto infers people over processes. Isn’t a Scrum Master — whose role is meant to “enforce” the process — therefore a contradiction?
Scrum Masters do not wield any real authority but act as servant leaders. The Scrum Team does not report to them. This question is meant to help reveal whether your candidate understands that their role is to lead — as opposed to managing — the team. Asking this question is also likely to reveal why your candidate is interested in the role of a Scrum Master in the first place.
Acceptable answers should emphasize facilitation and support, for example:
What indicators might there be that demonstrate agile practices are working for your organization, and which of these would demonstrate your efforts are succeeding?
There is no standard or general definition of ‘agile success’ that can be used to measure an organization’s agility. Every organization must develop its own criteria. Increasing team velocity is usually not considered to be a meaningful indicator.
However, although mostly indirect, various indicators may be useful in determining success:
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