10+ Application Development Engineer Interview Questions and Answers

The angle between minute and hour hand for a particular time can be calculated using a formula.

• The formula is: |(30*H) - (11/2)*M| degrees

• Where H is the hour hand position and M is the minute hand position

• If the result is greater than 180 degrees, subtract it from 360 degrees to get the acute angle

• For example, at 3:15, H=3 and M=15, so the angle is |(30*3) - (11/2)*15| = 7.5 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

Statistics keywords are terms used in statistical analysis to describe data and methods.

• Descriptive statistics: measures of central tendency and variability

• Inferential statistics: hypothesis testing and confidence intervals

• Regression analysis: modeling relationships between variables

• ANOVA: analysis of variance to compare means

• Correlation: measuring the strength of a relationship between two variables

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.

The most common element in a string is the character that appears the most frequently.

• Use a hashmap to store the frequency of each character in the string

• Iterate through the string and update the frequency count in the hashmap

• Find the character with the highest frequency in the hashmap

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

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

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