10+ Application Development Engineer Interview Questions and Answers

The angle between the minute and hour hand varies depending on the time.

• The angle between the minute and hour hand can be calculated using the formula: angle = 30 * (hour - minute/5)

• For example, at 3:00, the angle between the minute and hour hand is 90 degrees.

• At 6:00, the angle is 180 degrees.

• At 9:00, the angle is 270 degrees.

• At 12:00, the angle is 0 degrees.

Agile is iterative and flexible, while waterfall is linear and rigid.

• Agile focuses on delivering working software in short iterations, while waterfall follows a sequential process.

• Agile welcomes changes in requirements, while waterfall requires a detailed plan upfront.

• Agile emphasizes collaboration and communication, while waterfall relies on documentation.

• Agile is suited for complex and uncertain projects, while waterfall is suited for well-defined projects.

• Examples of agile...read more

NET is a software framework developed by Microsoft for building and running applications on Windows.

• NET is a framework that provides a programming model, a comprehensive software infrastructure, and various services required to build up robust web applications.

• .NET framework is a software development platform developed by Microsoft. It includes a large class library named Framework Class Library (FCL) and provides language interoperability across several programming languages...read more

Table variable is a variable that can hold a set of data like a table in a database.

• Table variables are declared using the DECLARE statement in SQL Server.

• They can be used to store temporary data that can be used in a query or a stored procedure.

• Table variables are stored in memory and are only visible within the scope of the code block in which they are declared.

• They can be used as an alternative to temporary tables.

• Example: DECLARE @myTableVariable TABLE (ID INT, Name VARCH...read more

Vending machine design patterns involve creating efficient and user-friendly interfaces for purchasing products.

• Consider using the Factory Method pattern to create different types of vending machines.

• Implement the State pattern to manage the different states of the vending machine (e.g. idle, dispensing, out of stock).

• Use the Observer pattern to notify the vending machine when products are restocked or when a purchase is made.

• Apply the Strategy pattern to allow for different ...read more

Default port number for TCP/IP is 80 for HTTP and 443 for HTTPS.

• TCP/IP uses port numbers to identify different services

• Port 80 is used for HTTP and 443 for HTTPS

• Port numbers range from 0 to 65535

To find the last k nodes from the end of a linked list, we can use a two-pointer approach.

• Use two pointers, one starting at the head of the linked list and the other starting k nodes ahead.

• Move both pointers simultaneously until the second pointer reaches the end of the linked list.

• The first pointer will now be at the kth node from the end.

To find the middle of a single linked list, use two pointers - one moving twice as fast as the other.

• Use two pointers - slow and fast

• Move slow pointer by one node and fast pointer by two nodes

• When fast pointer reaches end, slow pointer will be at the middle

Intersection of linked list is finding the common node(s) between two linked lists.

• Traverse both linked lists and store nodes in a set, then check for common nodes

• Use two pointers approach to find the intersection point

• If one list is longer, move the pointer of the longer list to the same distance from the end as the shorter list

Facebook is a social media platform that allows users to connect, share content, and communicate with others.

• User registration and login system

• Profile creation and customization

• News feed algorithm to display relevant content

• Friendship system to connect users

• Messaging and chat functionality

• Content sharing (posts, photos, videos)

• Privacy settings and controls

• Notifications and activity tracking

• Advertising and monetization strategies