Application Development Engineer
10+ Application Development Engineer Interview Questions and Answers
Q1. What is the angle between minute and hour hand for a particular time ?
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
Q2. Difference between agile and waterfall model
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
Application Development Engineer Interview Questions and Answers for Freshers
Q3. What is .net and how it is different from framework
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
Q4. What is statistics keywords
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
Q5. What is Table variable
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
Q6. Default port number for TCP/IP
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
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Q7. Design of vendee machine design patterns
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
Q8. Last k node from end of linked list
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.
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Q9. Most common element in a string
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
Q10. Intersection of linked list
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
Q11. Middle of single linked 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
Q12. Design facebook
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
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