10+ eClinicalWorks Interview Questions and Answers

The point where maximum intersections are happening in a 2D graph can be found by analyzing the overlapping regions of lines or curves.

• Identify all the lines or curves in the graph

• Determine the regions where these lines or curves overlap

• Count the number of intersections in each overlapping region

• Find the point with the highest number of intersections

Find max of multiple of 3 elements in an array with positive and negative values.

• Iterate through the array and keep track of the three largest positive and negative numbers.

• Multiply the three largest positive numbers and the three largest negative numbers by each other and find the maximum of the resulting products.

Find the longest common subsequence between two strings.

• Use dynamic programming to solve the problem efficiently.

• Create a 2D array to store the lengths of common subsequences.

• Trace back the array to reconstruct the longest common subsequence.

• Example: Given strings 'ABCBDAB' and 'BDCAB', the longest common subsequence is 'BCAB'.

Find the 2nd or 3rd largest element in an Array.

• Sort the array in descending order

• Return the element at index 1 or 2

Find maximum product triplet from an array.

• Sort the array in ascending order.

• Check the product of the last three elements.

• Check the product of the first two elements and the last element.

• Return the maximum product.

The count of repeating characters in a string.

• Iterate through each character in the string.

• Use a dictionary to keep track of the count of each character.

• Return the count of repeating characters.

Dynamic routing in networking is a process where routers can select the best path for data packets based on real-time information.

• Dynamic routing protocols allow routers to exchange information and adapt to changes in the network.

• Examples of dynamic routing protocols include RIP, OSPF, and BGP.

• Dynamic routing is more flexible and scalable compared to static routing.

• Dynamic routing helps in load balancing and fault tolerance in networks.

A custom string sorter that sorts an array of strings in ascending order.

• Use a sorting algorithm like bubble sort, selection sort, or merge sort to sort the array of strings.

• Compare each pair of strings and swap them if they are in the wrong order.

• Repeat the process until the array is sorted in ascending order.

Use two variables to keep track of highest and second highest numbers in the array.

• Iterate through the array and compare each element with the highest and second highest variables.

• Update the variables accordingly to find the second highest number.

Test inputs include valid inputs, boundary values, invalid inputs, and edge cases.

• Valid inputs: Providing inputs within the valid range to ensure the program functions correctly.

• Boundary values: Testing inputs at the boundaries of valid ranges to check for any issues.

• Invalid inputs: Testing inputs outside the valid range to see how the program handles errors.

• Edge cases: Testing extreme or unusual inputs to uncover any unexpected behavior.

Switch operates at data link layer and forwards data based on MAC addresses. Router operates at network layer and forwards data based on IP addresses.

• Switch operates at layer 2 of OSI model, while router operates at layer 3.

• Switch forwards data within the same network, while router forwards data between different networks.

• Switch uses MAC addresses to make forwarding decisions, while router uses IP addresses.

• Switch is typically used in LANs, while router is used to connect dif...read more

Merge overlapping intervals in an array of intervals.

• Sort the intervals based on the start value.

• Iterate through the intervals and merge overlapping intervals.

• Return the merged intervals.

Collections in Java are data structures that store and manipulate groups of objects.

• Collections framework provides interfaces (List, Set, Map) and classes (ArrayList, HashSet, HashMap) for storing and manipulating data.

• Collections offer methods for adding, removing, and accessing elements in a structured way.

• Example: List names = new ArrayList<>(); names.add("Alice"); names.add("Bob");

• Example: Set numbers = new HashSet<>(); numbers.add(1); numbers.add(2);