| SESSION | APRIL 2025 |
| PROGRAM | BACHELOR OF COMPUTER APPLICATIONS (BCA) |
| SEMESTER | VI |
| COURSE CODE & NAME | DCA3201 MOBILE APPLICATION DEVELOPMENT |
Set-I
Q1. Draw the Android architecture diagram and discuss the role of various layers available in android architecture framework. 5+5
Ans 1.
Understanding the Android Architecture
Android, an open-source operating system for mobile devices, is structured in a layered architecture that facilitates modular development and efficient system management. This architecture is built on the Linux Kernel and includes multiple layers that interact with one another to provide comprehensive support for application execution and hardware control. The architecture ensures high
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Q2. Discuss the importance of main thread in handling UI events in Android. Explain consequences of blocking the main Thread. 5+5
Ans 2.
Significance of the Main Thread in Android UI Operations
In Android, the main thread, also known as the UI thread, is the central thread where all user interface-related tasks occur. Every time a user interacts with the app—whether it is tapping a button, scrolling through a list, or entering text—these interactions are processed through the main thread. The Android platform enforces this design to maintain consistency and prevent race conditions in the UI. This
Q3. Describe the role of Media recorder class in audio and video recording with all the required steps. 5+5
Ans 3.
MediaRecorder in Android
The MediaRecorder class in Android is a powerful API used for recording audio and video. It acts as a high-level interface for developers to configure, control, and manage the entire recording process. MediaRecorder provides essential support for multimedia applications where capturing real-time audio and video is required. It is most commonly used in applications like voice recorders, camera apps, surveillance systems, and social media platforms that allow content creation.
Purpose and
Set-II
Q4. What are Layout Managers. Discuss their importance in android UI design with View and ViewGroups. 5+5
Ans 4.
Understanding Layout Managers in Android
In Android, Layout Managers are the backbone of User Interface (UI) design. They define how UI elements are arranged and displayed on the screen. A layout manager is responsible for organizing child components—referred to as Views—within a container called a ViewGroup. Android provides several predefined layout managers that serve as templates for arranging UI components in
Q5. Discuss how Broadcast Receivers work in Android and provide an example scenario where they might be useful 5+5
Ans 5.
Broadcast Receivers in Android
Broadcast Receivers in Android are components that allow applications to register for and respond to system-wide or app-specific broadcast events. They act as event handlers for communication between the Android system and applications, or between applications themselves. When an event occurs—such as a change in network connectivity, a low battery warning, or the receipt of an SMS—the system broadcasts an Intent. Broadcast Receivers listen for these broadcast Intents and react accordingly, allowing apps to perform appropriate actions even if they
Q6. Describe the fundamental CRUD operations in database management. How are they executed in Android’s SQLite? 5+5
Ans 6.
CRUD Operations
CRUD is an acronym that stands for Create, Read, Update, and Delete—the four basic operations for managing persistent data in any database system. These operations form the foundation of database management by allowing developers to add new records, retrieve existing data, modify records, and remove obsolete entries. In Android, these operations are most commonly implemented using the built-in SQLite database engine, which provides a lightweight and efficient
| SESSION | APRIL2025 |
| PROGRAM | BACHELOR OF COMPUTER APPLICATIONS (BCA) |
| SEMESTER | VI |
| COURSE CODE & NAME | DCA3243 CLOUD COMPUTING |
Set-I
Q1. Explain the fundamental concepts of cloud computing and how they differ from traditional computing paradigms.
Ans 1.
Cloud Computing
Cloud computing refers to the delivery of computing services such as servers, storage, databases, networking, software, and analytics over the internet—commonly referred to as “the cloud.” Instead of owning and maintaining physical hardware and infrastructure, organizations and individuals can access these services on-demand, paying only for what they use. Cloud computing has emerged as a powerful solution for scalable, flexible, and cost-effective IT infrastructure management
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Q2. Compare and contrast the three cloud service models—SaaS, PaaS, and IaaS—with suitable examples. 10
Ans 2.
Overview of Cloud Service Models
Cloud computing is categorized into three primary service models: Software as a Service (SaaS), Platform as a Service (PaaS), and Infrastructure as a Service (IaaS). These models represent different levels of abstraction and service delivery, each tailored to specific user needs. The distinction among them lies in how much control the user has and what components the cloud provider manages. Understanding these models is essential for selecting the right cloud solution for a particular business
Q3. What are the key strategic decisions involved in adopting cloud computing in an enterprise? Discuss with examples. 10
Ans 3.
Key Strategic Decisions Involved in Adopting Cloud Computing in an Enterprise
Strategic Cloud Adoption
Adopting cloud computing in an enterprise involves more than just a technological shift; it is a strategic decision that impacts the organization’s operations, cost structure, and long-term competitiveness. Enterprises must evaluate several key dimensions such as cost, scalability, data governance, integration, and business continuity before migrating to the cloud. The decision-making process requires cross-functional collaboration between IT, finance, legal, and executive teams to ensure
Set-II
Q4. How does cloud computing contribute to the cost-effective monitoring and management of IT infrastructure? 10
Ans 4.
Infrastructure Monitoring and Management
Cloud computing revolutionizes the way enterprises monitor and manage their IT infrastructure by introducing automation, centralization, and scalability. Traditional infrastructure management often involves complex and costly on-premises solutions that require significant capital investment, maintenance, and manual intervention. Cloud-based infrastructure management, on the other hand, enables organizations to track performance, ensure availability, and maintain control in a cost-
Q5. How do tools facilitate cloud access, and what factors should be considered when choosing them for different user needs? 10
Ans 5.
Cloud Access Tools
Cloud access tools serve as bridges between users and cloud environments, enabling seamless interaction with infrastructure, platforms, and services hosted in the cloud. These tools may include command-line interfaces (CLI), software development kits (SDKs), web portals, and third-party management software. They play a pivotal role in simplifying operations like resource provisioning, data migration, monitoring, security, and application deployment. Whether for developers, system
Q6. What are the main cloud computing standards, and why are they essential for interoperability and service reliability? 10
Ans 6.
Cloud Computing Standards
Cloud computing standards refer to the set of protocols, guidelines, and specifications that ensure compatibility, data integrity, security, and communication between various cloud platforms and services. These standards are essential for building an open, reliable, and interoperable cloud environment. Without standardized practices, organizations face difficulties in migrating applications, integrating services, and maintaining consistent security and performance across different providers. Adopting these standards also enhances trust and service-level guarantees for both providers and
| SESSION | APRIL 2025 |
| PROGRAM | BACHELOROF COMPUTER APPLICATIONS (BCA) |
| SEMESTER | VI |
| COURSE CODE & NAME | DCA3245 SOFTWARE PROJECT MANAGEMENT |
Set-I
Q1. Differentiate between 4P’s. What do you understand by Bruce Tuckman’s five-step paradigm? Also Explain Types of Organizational structures. 5+5
Ans 1.
Differentiation of the 4Ps in Software Project Management
The concept of the 4Ps in software project management refers to People, Product, Process, and Project. Each of these plays a critical role in the successful delivery of a software project. People represent the human resources involved, including project managers, developers, testers, and stakeholders. Effective management of people is essential for team coordination, communication, and productivity. Product refers to the software or system being developed. This includes understanding
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Q2. a. Explain various project development phases, Project Closure and role of 3W’s in project management.
- What is Work breakdown structure and explain incremental development? 5+5
Ans 2.
Project Development Phases and Closure in Software Project Management
Software projects typically follow a structured lifecycle that includes several critical phases. The first is the Initiation phase, where the project’s goals, scope, and feasibility are determined. This is followed by the Planning phase, where schedules, budgets, risk assessments, and resource allocations are documented. The Execution phase involves actual development and coding. During this phase, teams implement project plans and build the software product. The Monitoring and Control phase runs parallel to execution, where the project’s progress is tracked, and necessary
Q3. a. Explain Scheduling techniques. Give the difference between PERT and GANTT chart.
- Explain Cost estimation methods. Discuss one case study in COnstructive COst MOdel under Organic mode. 5+5
Ans 3.
- Scheduling Techniques and Difference Between PERT and Gantt Chart
Project scheduling is a fundamental aspect of software project management used to plan, track, and control time-related aspects of a project. Several scheduling techniques are utilized to ensure tasks are executed on time and project deadlines are met. The most commonly used techniques include Work Breakdown Structure (WBS), Network Diagrams, Gantt Charts, and Program Evaluation
Set-II
Q4. a. Explain Project monitoring and control, also define Project Matrics and Earned Value Analysis.
- What do you understand by RMMM (Risk Monitoring, Management and Mitigation) techniques? 5+ 5
Ans 4.
- Project Monitoring and Control, Metrics, and Earned Value Analysis
Project Monitoring and Control is a critical phase in software project management where ongoing activities are tracked to ensure that the project progresses as planned. This involves evaluating the current status, comparing it with the baseline, and implementing corrective actions where deviations occur. Monitoring includes tracking time, cost, quality, and scope. Control ensures that any divergence from the project plan is managed promptly to maintain alignment with project objectives.
Project Metrics are quantitative indicators used to measure various aspects of the project such as productivity, quality,
Q5. a. Mention the categories of the CASE Tools with their classification.
- Define the quality parameters under various quality standards of the project. 5+5
Ans 5.
CASE Tool Categories and Software Project Quality Parameters
- Categories and Classification of CASE Tools
CASE (Computer-Aided Software Engineering) tools are software applications that support various stages of software development and project management. These tools are designed to increase productivity, improve design quality, and promote consistency in development practices. CASE
Q6.a.Give an example and discuss Software Configuration and change and version control. Differentiate between Black and White box testing.
b.What is Team organization types and conflict management? Compare between ISO 9001 & SEI-CMM 5+5
Ans 6.
- Software Configuration, Change and Version Control with Testing Comparison
Software Configuration Management (SCM) is a discipline focused on systematically managing changes in software products during the development lifecycle. It involves identifying configuration items, tracking changes, and maintaining version integrity. A key component of SCM is version control, which helps maintain multiple versions of a software system, enabling rollback, parallel