Appian Certified Associate Developer ACD100 Exam Questions

If you're looking to become an Appian Certified Associate Developer, then PassQuestion Appian Certified Associate Developer ACD100 Exam Questions are a great resource for you. These ACD100 questions and answers are designed to test your knowledge of the Appian platform and help you prepare for the actual exam. PassQuestion Appian Certified Associate Developer ACD100 Exam Questions are designed to simulate the real exam experience. This means that the questions are of the same difficulty level as the actual exam, and the format is similar as well. This gives you the opportunity to practice and get comfortable with the exam format before taking the actual certification exam.

ACD100 Exam Overview - Appian Certified Associate Developer

Do you have a basic understanding of building in the Appian environment? The Associate Developer exam validates your knowledge of best practices around the design, development, and maintenance of apps. The associate developer is a perfect test of knowledge for Appian developers who have recently started on the Appian platform. Ideally, they have attended Appian instructor-led or online training and have some hands-on experience working on two or three training or client applications.

Appian developers who already have 2+ years of experience working on the platform, I can assure you that you don’t even need to study for the test. ACD100 has questions that you will be able to answer just with your practical work experience.

Appian ACD100 Exam Information

Certification Name: Associate Developer
Exam Number: ACD100
Format: Single Choice, Multiple Choice, Match the lists, Sequence questions
Exam Duration: 60 minutes
Exam Cost: $200
Number of Questions: 60
Passing Score: 62%

Appian Certified Associate Developer ACD100 Exam Topics

The Appian Platform (10%)

Identify commonly used Appian resources
Organize an application's structure (e.g., folder structure, group setup)
Describe common Appian use cases
Differentiate between Appian platform permissions (e.g., role-based security)
Differentiate between user experiences (e.g., sites, tempo, embedded)

Software Development Lifecycle (SDLC) (10%)

Recognize the roles and responsibilities of development team members
Differentiate between the stages of the SDLC (e.g., analysis, transformation, deployment, testing, maintenance)
Describe the scrum lifecycle of a user story
Explain the various Agile scrum ceremonies (e.g., refinement, standup, retrospective)
Define the use of each Appian environment used within the SDLC

Data Manipulation (17%)

Demonstrate basic knowledge of managing data and relational databases (RDBMS) (e.g., table relationships and views)
Explain how Appian’s objects interact with relational database management systems
Write basic SQL statements (e.g., create, modify, update, delete)
Troubleshoot issues with database transactions(e.g., SQL, CDTs)

Appian Process Modeling (18%)

Identify common ways to start or trigger Appian processes
Configure process model properties, common nodes, and user input tasks
Implement tasks within Appian process models according to proven practices

Appian Interface Design (18%)

Construct each of the Appian interface components
Configure common variable types within an interface
Configure common interface components (e.g. drop-downs, grids, buttons, validations)
Recognize and implement Appian user experience best practices

Appian Records (15%)

Configure an Appian Record Type object to support business requirements
Identify use cases for each record type data source
Design record views and lists
Configure record and related actions

Appian Expression Rules (12%)

Recall expression rule use cases
Build and implement a basic function expression rule
Implement basic testing practices during expression rule creation
Write comprehensible expression rules in accordance with business requirements

View Online Appian Certified Associate Developer ACD100 Free Questions

1. You are creating a new interface. You need to arrange the primary, top-level contents of the interface across the width of the page.
According to best practices, which layout should be used in order to accomplish this?
A.Columns
B.Card
C.Side by Side Layout
D.Section
Answer: A

2. You are configuring a record type and utilizing data sync.
Appian does NOT have write access to the source database table, and will not make updates. Which data sync option is most appropriate for your situation?
A.Hourly Sync
B.Manual Sync
C.Daily Sync
D.Immediate Sync
Answer: C

3. What is test-driven design?
A.A developer writes test cases that will succeed based on the developer’s expression rule.
B.A developer writes test cases before they write their expression rule and uses them to determine when they’ve succeeded.
C.A developer writes test cases after they have finished writing their expression rule to determine if they’ve succeeded.
D.A developer writes test cases as they write their expression rule to test their rule along the way.
Answer: B

4. What is a way to start a process from an interface?
A.Start Process Smart Service
B.Process Start Event
C.Process Messaging
D.Start Process Link
Answer: D

5. You have been tasked with creating a new expression rule in an application with the acronym ABC.
According to Appian best practices, which name is most appropriate?
A.ABCGetUserById
B.ABC_GetUserById
C.ABC_GetUser_byId
D.ABC_get_user_by_id
Answer : B

6. What is the maximum number of additional views that can be created on Appian record types?
A.10
B.20
C.30
D.There is no limit
Answer: D

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How Do I Pass the AWS Solutions Architect Associate Exam? Careerera

The AWS solutions architect associate exam is one of the most difficult certification exams in the world. There are many certifications for various things such as the PMP certification and the CISSP certification, but it is the AWS solutions architect associate exam which takes the crown when it comes to difficulty.

How to Qualify an AWS Certified Solutions Architect Associate Exam?

Naturally, given the difficulty of the exam many people wonder, “How Do I Pass the AWS Solutions Architect Associate Exam?” on the first attempt. This is a very valid question and, in this article, we will discuss all the ways in which one can maximize his chances of passing the AWS solutions architect associate exam in the first attempt.

Before starting we must remember one thing – the AWS platform is a beast of a platform and is vast beyond comprehension. So, for a beginner looking to take the AWS solutions architect associate exam it will not be possible to cover all the topics and services related to the AWS platform.

However, one can make one’s best attempt to cover all the core concepts and topics which are most relevant and pertinent to the AWS platform. A candidate for the AWS solutions architect associate exam in particular should keep himself updated on all the most recent advances and developments in the field of AWS.

Which services are tested most frequently on the exam?

1. Amazon EC2 -

This service is used to create virtual machines which are offsite. It is also used to manage things such as ports, security, and storage because of its many features. It allows the users to utilize AWS’ vast computing capabilities on-demand. With a ‘scale as you grow’ philosophy the user is not trapped into an agreement in which they will have to purchase excessive resources from Amazon.
They only have to make use of as many resources as they need. The Amazon EC2 web interface allows the software developers to configure and resize the compute machines to their heart’s content with minimal friction and absolutely no confusion whatsoever. All decent AWS Solutions Architect Associate Certification courses teach how to make use of this service.

2. Amazon RDS -

The full form of Amazon RDS is Amazon Relational Database Service. It is an extremely useful service launched by Amazon. It is used by software developers to create a database with all the features of a full-fledged offline database in a matter of minutes.

The main purpose of Amazon RDS is to set up relational databases in the cloud. These databases can be set up, operated, and scaled very easily and very smoothly. Amazon provides a very seamless and slick interface which is ideal for operating the databases thus created.

The databases are very cost-effective and can be resized very easily. They provide all facilities to carry out administrative tasks such as hardware provisioning, database setup, patching and backups. With the help of these databases, one will be able to give their applications fast performance, high availability, security and compatibility.

3. Amazon S3 -

The full form of Amazon S3 is Amazon Simple Storage Service. It is a service which provides a lot of expediency to software developers in the matter of storage. Software developers can create objects through programming and they can then store those objects which they have coded into the Amazon S3 service.

This service is responsible in a large part for having made AWS the leading cloud services provider in the world. Truly Jeff Bezos must have been inspired by a divine vision when he conceived of this service. This service leads the industry in terms of scalability, data availability, security, and performance.

How difficult is the AWS solutions architect associate exam?

As we have mentioned before, the AWS platform is vast beyond comprehension. It contains multitudes of services and all of them have their own various configuration options and switches. This means that for a candidate who is just starting his journey of becoming a AWS certified solution architect associate it is not possible to master the whole platform immediately.

It will take many years and a lot of practical and hands-on experience before he is able to do so. But the AWS solutions architect associate exam has a very extensive syllabus and is thus prohibitively difficult for the candidates. Its syllabus contains the following domains of knowledge -

• Design Resilient Architectures - 34%
• Define Performant Architecture – 24%
• Specify Secure Applications and Architectures – 24%
• Design Cost-Optimized Architectures – 10%
• Define Operationally Excellent Architectures – 8%

Some tips which will help to clear the exam -

1. Read as many AWS whitepapers as possible -

The AWS whitepapers explain many core concepts of the AWS platform in very technical, precise, and accurate language. For a candidate preparing for the AWS solutions architect associate exam, it is very beneficial to read the whitepapers as they will illuminate many technical and hard to grasp concepts of the AWS platform in a detailed and scientific way.

2. Make use of the process of elimination for multiple correct answers -

On the AWS solutions architect associate exam there will be many questions which will have multiple options. For those questions the candidate should first try to identify and eliminate the incorrect options so that they have to contemplate a fewer number of options while trying to find the correct answer.

3. Try to spot questions which have hints and details about other questions -

Many times, there will be questions on the exam which will contain hints and details pertinent to other questions on the exam. So, the candidate should keep a weather eye out for such questions and read all questions carefully with this aspect of the exam kept in mind firmly. This trick is taught in many AWS Solutions Architect Associate Certification courses.

4. Take an AWS solution architect associate course -

The best way to pass the AWS solutions architect associate exam is to take an AWS solution architect associate course. This will help the candidate because they will be studying under the guidance of seasoned and experienced instructors who will be able to bring their world-class teaching skills and subject matter expertise to bear to make the learners fully prepared for the exam.

#how do i pass the aws solutions architect associate exam #how to qualify an aws certified solutions architect associate exam #aws solutions architect associate exam #aws solutions architect associate certification courses #aws certified solution architect associate #aws solution architect associate course

How long does it take to develop/build an app?

With more of us using smartphones, the popularity of mobile applications has exploded. In the digital era, the number of people looking for products and services online is growing rapidly. Smartphone owners look for mobile applications that give them quick access to companies’ products and services. As a result, mobile apps provide customers with a lot of benefits in just one device.

Likewise, companies use mobile apps to increase customer loyalty and improve their services. Mobile Developers are in high demand as companies use apps not only to create brand awareness but also to gather information. For that reason, mobile apps are used as tools to collect valuable data from customers to help companies improve their offer.

There are many types of mobile applications, each with its own advantages. For example, native apps perform better, while web apps don’t need to be customized for the platform or operating system (OS). Likewise, hybrid apps provide users with comfortable user experience. However, you may be wondering how long it takes to develop an app.

To give you an idea of how long the app development process takes, here’s a short guide.

App Idea & Research

_Average time spent: two to five weeks _

This is the initial stage and a crucial step in setting the project in the right direction. In this stage, you brainstorm ideas and select the best one. Apart from that, you’ll need to do some research to see if your idea is viable. Remember that coming up with an idea is easy; the hard part is to make it a reality.

All your ideas may seem viable, but you still have to run some tests to keep it as real as possible. For that reason, when Web Developers are building a web app, they analyze the available ideas to see which one is the best match for the targeted audience.

Targeting the right audience is crucial when you are developing an app. It saves time when shaping the app in the right direction as you have a clear set of objectives. Likewise, analyzing how the app affects the market is essential. During the research process, App Developers must gather information about potential competitors and threats. This helps the app owners develop strategies to tackle difficulties that come up after the launch.

The research process can take several weeks, but it determines how successful your app can be. For that reason, you must take your time to know all the weaknesses and strengths of the competitors, possible app strategies, and targeted audience.

The outcomes of this stage are app prototypes and the minimum feasible product.

#android app #frontend #ios app #minimum viable product (mvp) #mobile app development #web development #android app development #app development #app development for ios and android #app development process #ios and android app development #ios app development #stages in app development

Developer Career Path: To Become a Team Lead or Stay a Developer?

For a developer, becoming a team leader can be a trap or open up opportunities for creating software. Two years ago, when I was a developer, I was thinking, “I want to be a team leader. It’s so cool, he’s in charge of everything and gets more money. It’s the next step after a senior.” Back then, no one could tell me how wrong I was. I had to find it out myself.

I Got to Be a Team Leader — Twice

I’m naturally very organized. Whatever I do, I try to put things in order, create systems and processes. So I’ve always been inclined to take on more responsibilities than just coding. My first startup job, let’s call it T, was complete chaos in terms of development processes.

Now I probably wouldn’t work in a place like that, but at the time, I enjoyed the vibe. Just imagine it — numerous clients and a team leader who set tasks to the developers in person (and often privately). We would often miss deadlines and had to work late. Once, my boss called and asked me to come back to work at 8 p.m. to finish one feature — all because the deadline was “the next morning.” But at T, we were a family.

We also did everything ourselves — or at least tried to. I’ll never forget how I had to install Ubuntu on a rack server that we got from one of our investors. When I would turn it on, it sounded like a helicopter taking off!

At T, I became a CTO and managed a team of 10 people. So it was my first experience as a team leader.

Then I came to work at D — as a developer. And it was so different in every way when it came to processes.

They employed classic Scrum with sprints, burndown charts, demos, story points, planning, and backlog grooming. I was amazed by the quality of processes, but at first, I was just coding and minding my own business. Then I became friends with the Scrum master. I would ask him lots of questions, and he would willingly answer them and recommend good books.

My favorite was Scrum and XP from the Trenches by Henrik Kniberg. The process at D was based on its methods. As a result, both managers and sellers knew when to expect the result.

Then I joined Skyeng, also as a developer. Unlike my other jobs, it excels at continuous integration with features shipped every day. Within my team, we used a Kanban-like method.

We were also lucky to have our team leader, Petya. At our F2F meetings, we could discuss anything, from missing deadlines to setting up a task tracker. Sometimes I would just give feedback or he would give me advice.

That’s how Petya got to know I’d had some management experience at T and learned Scrum at D.

So one day, he offered me to host a stand-up.

#software-development #developer #dev-team-leadership #agile-software-development #web-development #mobile-app-development #ios-development #android-development

Offshore Software Development - Best Practices

With the rise of globalization and the worldwide lockdown due to the pandemic, most of the work has been done by remote working processes and professionals from their homes. This lockdown has proved the efficiency of remote development and enhanced the trust in offshore software development industry.

To make the most out of the benefits of offshore software development, you should understand the crucial factors that affect offshore development. This is why you should read this guide for the best practices when hiring an offshore software development company. Despite the size and the industry of the business, offshore software development is not beneficial for every entrepreneur in many aspects to make the optimum use of talents in technology across the globe.

Here are some of the top reasons why offshore development is beneficial for your business.

• Offshore development teams can work on flexible timing to provide you with the best possible software development practices.
• Get access to the talents across the world from your home to develop the top of the line software with the help of offshore development companies.
• Assured high quality and next-generation technology expertise with duly NDA signed with respect to the priorities of the business.
• With flexible recruitment models, you can hire the freelance developers, remote development team, or an entire offshore development company with respect to the size of your business.
• Build high-end software applications from one corner of the world by hiring software developers across the world.
• Get immediate access to the best resources without hiring them on a permanent basis.

To avail of all these benefits, you should have clear goals, a list of requirements, and features that are mandatory for your software product.

Here are a few tips to help you find the best offshore software development company. Build a top-notch software application by following the listed best practices.

#web development #how to start offshore software development company #offshore meaning #offshore software development best practices #offshore software development company #offshore software development company in india #offshore software development cost #offshore software development statistics #outsource software development

Top 130 Android Interview Questions - Crack Technical Interview Now!

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 Interview Questions – Get ready for 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.

Android Interview Questions for Freshers

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:

• Android 1.0 – Its release is 23 September 2008.
• Android 1.1 – Its release date is 9 February 2009.
• Android 1.5 – Its name is Cupcake, Released on 27 April 2009.
• Android 1.6 – Its name is Donut, Released on 15 September 2009.
• Android 2.0 – Its name is Eclair, Released on 26 October 2009
• Android 2.2 – Its name is Froyo, Released on 20 May 2010.
• Android 2.3 – Its name is Gingerbread, Released on 06 December 2010.
• Android 3.0 – Its name is Honeycomb, Released on 22 February 2011.
• Android 4.0 – Its name is Ice Cream Sandwich, Released on 18 October 2011.
• Android 4.1 – Its name is Jelly Bean, Released on 9 July 2012.
• Android 4.4 – Its name is KitKat, Released on 31 October 2013.
• Android 5.0 – Its name is Lollipop, Released on 12 November 2014.
• Android 6.0 – Its name is Marshmallow, Released on 5 October 2015.
• Android 7.0 – Its name is Nougat, Released on 22 August 2016.
• Android 8.0 – Its name is Oreo, Released on 21 August 2017.
• Android 9.0 – Its name is Pie, Released on 6 August 2018.
• Android 10.0 – Its name is Android Q, Released on 3 September 2019.
• Android 11.0 – As of now, it is Android 11.

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:

1. Widgets
2. Intents
3. Views
4. Notification
5. Fragments
6. Layout XML files
7. Resources

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.

1. Single Transactions can only show a single view for the user.
2. List Fragments have a special list view feature that provides a list from which the user can select one.
3. Fragment Transactions are helpful for the transition between one fragment to the other.

Frequently asked Android Interview Questions and Answers

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:

• onCreate()
• onStart()
• onPause()
• onRestart()
• onResume()
• onStop()
• onDestroy()

26. How can you launch an activity in Android?

We launch an activity using Intents. For this we need to use intent as follows:

1. ntent intent_name= new Intent(this, Activity_name.class);
2. startActivity(intent_name);

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-

• onStartCommand()
• onBind()
• onCreate()
• onUnbind()
• onDestroy()
• onRebind()

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-

1. build.xml- It is responsible for the build of Android applications.
2. bin/ – The bin folder works as a staging area to wrap the files packages into the APK.
3. src/ – The src is a folder where all the source files of the project are present.
4. res/ – The res is the resource folder that stores values of the resources that are used in the application. These resources can be colors, styles, strings, dimensions, etc.
5. assets/ – It provides a facility to include files like text, XML, fonts, music, and video in the Android application.

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-

1. Multi-tasking
2. Support for a great range of languages
3. Support for split-screen
4. High connectivity with 5G support
5. Motion Control

34. Why did you learn Android development?

Learning Android Studio is a good idea because of the following-

1. It has a low application development cost.
2. It is an open-source platform.
3. It has multi-platform support as well as Multi-carrier support.
4. It is open for customizations.
5. Android is a largely used operating system throughout the world.

35. What are the different ways of storage supported in Android?

The various storage ways supported in Android are as follows:

1. Shared Preference
2. Internal Storage
3. External Storage
4. SQLite Databases
5. Network Connection

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:

1. Linear Layout
2. Relative Layout
3. Constraint Layout
4. Table Layout
5. Frame Layout
6. Absolute Layout
7. Scrollview layout

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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