10+ iBhejo Interview Questions and Answers

Implement a function to update an array based on XOR queries.

• Create an empty array to store the elements.

• Iterate through each query and update the array accordingly.

• Use bitwise XOR operation to update the elements.

• Ensure to handle both types of queries - insert and XOR.

• Return the updated array after all queries are processed.

Find the minimum number of elements to remove from an array to satisfy a given condition.

• Calculate the initial difference between the maximum and minimum elements in the array.

• Iterate through the array and remove elements to minimize the difference.

• Return the count of elements removed as the answer.

Calculate the minimum number of stabs required to kill the king by reducing his health to zero.

• Iterate through each test case and calculate the minimum number of stabs required based on the given operations.

• For each test case, keep reducing the king's health using the first or second type of stab until it reaches zero.

• Consider the constraints provided to optimize the solution and handle edge cases.

• Example: For input 10, the minimum number of stabs required is 4 (10 -> 9 -> 3 ...read more

The problem involves finding the minimum time to travel from a source junction to a destination junction in a city with specified travel times and green light periods.

• Input consists of the number of test cases, number of junctions and roads, green light periods, road connections with travel times, and source/destination junctions.

• Output should be the minimum time needed from source to destination, or -1 if destination is unreachable.

• Consider constraints such as the number of ...read more

Given two strings of the same length, determine if one can be scrambled to obtain the other using specified operations.

• Check if the two strings are equal, if so return true.

• Check if the characters in both strings are the same, if not return false.

• Try all possible ways of splitting and scrambling the first string to match the second string.

Port 80 is used for HTTP, which is the protocol used for transmitting web pages over the internet.

• Port 80 is the default port for HTTP

• HTTP stands for Hypertext Transfer Protocol

• Other common ports include 8080 for alternative HTTP port

The OSI model is a conceptual framework that standardizes the functions of a telecommunication or computing system into seven layers.

• Layer 1 (Physical): Deals with physical connections and data transmission. Example: Ethernet cables.

• Layer 2 (Data Link): Manages data transfer between devices on the same network. Example: MAC addresses.

• Layer 3 (Network): Handles routing and forwarding of data packets. Example: IP addresses.

• Layer 4 (Transport): Ensures reliable data transfer bet...read more

The Linux boot process involves several stages, including BIOS/UEFI, bootloader, kernel initialization, and user space initialization.

• BIOS/UEFI performs hardware checks and loads bootloader

• Bootloader (GRUB, LILO) loads kernel into memory

• Kernel initializes hardware, mounts root filesystem, and starts user space processes

• User space initialization includes starting system services and login prompt

RHEL 7 offers improved performance, security features, and support for newer hardware compared to RHEL 6.

• RHEL 7 has better performance due to kernel improvements and optimized resource management.

• RHEL 7 includes enhanced security features such as SELinux improvements and system-wide cryptographic policies.

• RHEL 7 provides support for newer hardware and technologies, such as Docker containers and systemd.

• RHEL 7 offers improved networking capabilities and better integration with...read more