Discuss the advantages of sending push notifications over polling method. Write a program to send Push notifications from the Android application.

Define the key principles of user interface design in the context of Android. Discuss the importance of creating intuitive and visually appealing interfaces for mobile applications.

Discuss the significance of ensuring device compatibility in Android app development. Explain how device compatibility impacts the user experience and the success of an application.

Discuss how activities, services, broadcast receivers, and content providers interact with each other. Provide examples of scenarios where each component type is commonly used.

Describe the role of the Android Studio Integrated Development Environment (IDE). Explain the importance of the Android Software Development Kit (SDK) in Android development.

Define what an Activity is in the context of Android. Explain the significance of the Activity Lifecycle in Android app development.

Describe the architecture of the Android operating system. Explain the roles of the four main components in the Android architecture. Discuss the significance of the Linux kernel in the Android system.

What is Android, and how does it differ from other mobile operating systems? Explain the open-source nature of the Android operating system. Discuss the history and evolution of the Android platform.

Explain the process of development of a database system for an organisation

Pascal’s Formula

Planar graphs

Edge Coloring

. Vertex Coloring

Design the Relational Schema for the E-R diagram you drew for Question 1. The relations must be at least in 3NF. Perform the following operations on the relations:
a) Enter about five sets of meaningful data in each of the relation.
b) Specify the domain of various attributes.
c) Specify the Primary key of every relation.
d) Specify the Foreign keys and referential integrity constraints in the relations.

Answer the following queries using SQL for the database created in Question 2.
(i) List the title of the Book whose ISBN number is 978-9332582705
(ii) List the members whose membership is due for renew.
(iii) Find the list of books with multiple copies in the library.
(iv) List all the books that have been issued to the member having the member ID “A123”
(v) List the names of the members whose return of the book is overdue by one week.
(vi) Find the member who has got the maximum number of books issued.
(vii) List the names of the members who were issued the book having ISBN number
978-9332582705.
(viii) List the members who were not issued even a single book.
(ix) List the Book details and number of copies of each of these books.
(x) Calculate the total number of books issued in the last month.
Note: Make suitable assumptions, if any.

Travelling Salesman Problem

Differentiate between Eulerian graph andEulerian circuit. Find the Eulerian circuit in the graph given below(if it exists).

Design an ER diagram for a Library book management system. The library has many books. The library keeps several copies of important books. Each book is identified by a unique identification number. In addition, the library records the ISBN number, title of the book, names of the authors of the book, publisher’s name, and year of publication for the books. The books can be issued to members. A member pays Rs 1000 for yearly membership. Membership is renewed every year. A member can be issued a maximum of 5 books. Identify and list the entities, attributes, relationships, cardinality, keys and constraints. Make and state suitable assumptions.

How Hamiltonian graphs differ from the Eulerian graphs? Give Dirac’s and Ore’s criterion for the Hamiltonian graphs.

What is a bipartite graph ? Explain with the help of an example. Give one or two applications of bipartite graphs.

Circuit