Beratung Consultants Interview Questions and Answers

Binary search is a search algorithm that finds the position of a target value within a sorted array.

• Divide the array into two halves

• Compare the target value with the middle element

• If the target value matches the middle element, return its position

• If the target value is less than the middle element, search the left half of the array

• If the target value is greater than the middle element, search the right half of the array

• Repeat until the target value is found or the search spac...read more

Reverse a string by grouping 'm' characters together

• Iterate through the string in groups of 'm' characters

• Reverse each group of 'm' characters

• Concatenate the reversed groups to get the final reversed string

Data structure is a way of organizing and storing data in a computer so that it can be accessed and used efficiently.

• Data structures can be linear (arrays, linked lists) or non-linear (trees, graphs)

• Common operations on data structures include insertion, deletion, and searching

• Examples of data structures include stacks, queues, hash tables, and binary trees

API call in C

• Include the necessary header files

• Create a URL string with the required parameters

• Use the curl library to make the API call

• Handle the response data appropriately

TCP is a connection-oriented protocol while UDP is connectionless.

• TCP provides reliable, ordered, and error-checked delivery of data while UDP does not guarantee any of these.

• TCP is slower but more reliable while UDP is faster but less reliable.

• TCP is used for applications that require high reliability and accuracy such as email, file transfer, and web browsing while UDP is used for applications that require speed and efficiency such as online gaming and video streaming.

A nibble swap program in C

• Nibble swap means swapping the 4-bit halves of a byte

• Use bitwise operators to perform the swap

• Example: unsigned char x = 0xAB; x = ((x & 0x0F) << 4) | ((x & 0xF0) >> 4);