10+ System Engineer Specialist Interview Questions and Answers for Freshers

Given an array of prime numbers representing switches and an integer K, find the Kth glowing bulb when all switches are turned on.

• Iterate through each prime number in the array and calculate the number of bulbs that will glow for each prime number.

• Keep track of the total number of glowing bulbs as you iterate through the array.

• Once the total number of glowing bulbs exceeds or equals K, calculate the Kth glowing bulb based on the last prime number that was considered.

Given an array of 0s and 1s, find the maximum count of 1s by flipping a sub-array at most once.

• Iterate through the array and keep track of the maximum count of 1s seen so far.

• If the current element is 0, consider flipping the sub-array from the previous 1 to the current 0.

• Update the maximum count of 1s if flipping the sub-array results in a higher count.

• Return the maximum count of 1s obtained after considering all possible sub-arrays.

Find minimum time to rot all fresh oranges adjacent to rotten oranges in a grid.

• Use Breadth First Search (BFS) to simulate the rotting process

• Keep track of the time taken to rot all fresh oranges

• Return -1 if not all fresh oranges can be rotten

Given an array of strings, determine the number of unique strings that cannot be transformed into another string by swapping characters at odd or even indices.

• Iterate through each string in the array and check if it can be transformed into another string by swapping characters at odd or even indices.

• Keep track of unique strings that cannot be transformed and return the count.

• Example: For array = ["abcd", "cbad", "bdac", "adcb"], the output is 2 as only "bdac" cannot be transf...read more

Calculate total instances of equivalent prime groups in a day divided into equal parts.

• Divide the day into equal parts and find prime numbers in each part.

• Identify prime groups with prime numbers at the same position in different parts.

• Count the total instances of equivalent prime groups.

• Ensure DAY_HOURS is divisible by PARTS and handle constraints.

• Return the number of equivalent prime groups for each test case.

Implement a function to determine if a numeric string contains a substring whose value equals the product of two consecutive integers.

• Iterate through all possible substrings of the input string.

• Calculate the integer value of each substring and check if it equals the product of two consecutive integers.

• Return 'True' if such a substring is found, otherwise return 'False'.

MergeSort algorithm is used to sort a singly linked list of integers in ascending order.

• Implement the MergeSort algorithm to recursively divide the linked list into two halves, sort them, and then merge them back together.

• Use a slow and fast pointer technique to find the middle of the linked list for splitting.

• Ensure to handle the base cases of empty list or single node list.

• Example: For input '10 3 5 -1', the output should be '3 5 10'.

NOSQL databases are non-relational databases that store and retrieve data in a flexible and scalable manner.

• NOSQL stands for 'Not Only SQL'

• They are designed to handle large volumes of unstructured or semi-structured data

• They offer high scalability and availability

• Examples include MongoDB, Cassandra, and Couchbase

ACID properties are a set of properties that ensure database transactions are processed reliably.

• ACID stands for Atomicity, Consistency, Isolation, and Durability.

• Atomicity ensures that a transaction is treated as a single, indivisible unit of work.

• Consistency ensures that a transaction brings the database from one valid state to another.

• Isolation ensures that concurrent transactions do not interfere with each other.

• Durability ensures that once a transaction is committed, it ...read more

Thrashing is a phenomenon in OS where excessive paging occurs, leading to a decrease in system performance.

• Occurs when the system is overcommitted with too many processes or tasks

• Causes excessive swapping of pages between RAM and disk

• Can be resolved by adding more RAM or reducing the number of processes

• Can be identified by monitoring page fault rates