10+ IBM System Engineer Interview Questions and Answers

Questions related to programming concepts and database normalization.

• Bubble sort code: repeatedly swap adjacent elements if they are in wrong order

• Linear search code: iterate through each element until the target is found

• Binary search code: divide the sorted array in half and eliminate the half where the target cannot be

• OOP concepts: encapsulation, inheritance, polymorphism, abstraction

• Normalization: process of organizing data in a database to reduce redundancy and dependency...read more

System32 is a critical Windows operating system directory containing essential system files and drivers.

• Contains core system files necessary for Windows to operate.

• Includes drivers for hardware components like printers and graphics cards.

• Accessing System32 can lead to system configuration changes.

• Deleting or modifying files in System32 can cause system instability.

• Commonly referenced in jokes and memes about computer issues.

BitLocker is a disk encryption feature in Windows that protects data by encrypting entire volumes.

• Provides full disk encryption to protect data from unauthorized access.

• Uses AES encryption algorithm to secure data.

• Can be managed via Group Policy for enterprise environments.

• Supports TPM (Trusted Platform Module) for enhanced security.

• Allows recovery options through recovery keys or passwords.

WAN (Wide Area Network) connects multiple local networks over large distances, enabling communication and data sharing.

• WANs cover large geographical areas, such as cities, countries, or even continents.

• They use various transmission technologies, including leased lines, satellite links, and VPNs.

• Examples of WANs include the Internet, corporate networks connecting multiple offices, and telecommunications networks.

LAN (Local Area Network) connects computers and devices in a limited area for resource sharing.

• LAN typically covers a small geographic area, like a home, office, or campus.

• Common technologies include Ethernet and Wi-Fi.

• Devices on a LAN can share resources like printers and files.

• LANs can be wired (using cables) or wireless (using Wi-Fi).

• Example: A home network connecting computers, smartphones, and smart TVs.

DRS (Distributed Resource Scheduler) in VMware automatically balances computing workloads across a cluster of hosts.

• Automatically balances computing workloads

• Helps optimize resource utilization

• Improves performance and efficiency

• Can be set to manual or automatic mode

• Example: DRS moves virtual machines between hosts to ensure resources are evenly distributed

AngularJS lifecycle hooks are methods that allow you to tap into the lifecycle of a component or directive.

• ngOnInit - called after the component has been initialized

• ngOnChanges - called when the input properties of a component change

• ngOnDestroy - called before the component is destroyed

• ngAfterViewInit - called after the component's view has been fully initialized

Heap sort is a comparison-based sorting algorithm that uses a binary heap data structure.

• Heap sort works by first building a heap from the input array.

• Then it repeatedly extracts the maximum element from the heap, and places it at the end of the sorted array.

• The heap is then updated to exclude the extracted element, and the process is repeated until the heap is empty.

• Heap sort has a worst-case and average time complexity of O(n log n), making it efficient for large datasets.