10+ AS Technology Corporation Interview Questions and Answers

Factors considered before moving to PaaS

• Cost-effectiveness compared to on-premise solutions

• Scalability and flexibility of the platform

• Ease of deployment and management

• Availability of necessary features and integrations

• Security and compliance measures

• Vendor lock-in and portability

• Ability to focus on application development rather than infrastructure management

Factors considered before moving to IaaS

• Cost savings compared to on-premise infrastructure

• Scalability and flexibility to meet changing business needs

• Reduced maintenance and management responsibilities

• Access to advanced technologies and features

• Improved disaster recovery and business continuity capabilities

I have used various logging methodologies including centralized logging, structured logging, and event logging.

• Centralized logging using tools like ELK stack and Splunk

• Structured logging using libraries like Serilog and log4net

• Event logging using Windows Event Viewer and Syslog

• Custom logging solutions using database or file storage

• Logging for performance monitoring and debugging purposes

IaaS provides infrastructure while PaaS provides a platform for application development and deployment.

• IaaS offers virtualized computing resources like servers, storage, and networking while PaaS provides a platform for developers to build, test, and deploy applications.

• IaaS requires more management and maintenance from the user while PaaS abstracts away much of the underlying infrastructure.

• Examples of IaaS providers include Amazon Web Services (AWS) and Microsoft Azure whil...read more

Call, apply, and bind are methods in JavaScript used to manipulate the 'this' keyword and pass arguments to functions.

• Call invokes a function with a specified 'this' value and arguments passed individually.

• Apply invokes a function with a specified 'this' value and arguments passed as an array.

• Bind creates a new function with a specified 'this' value and arguments passed individually.

• All three methods are used to manipulate the 'this' keyword in JavaScript.

JavaScript closure is a function that has access to its outer function's variables, even after the outer function has returned.

• Closure is created when a function is defined inside another function.

• The inner function has access to the outer function's variables and parameters.

• The outer function's variables and parameters are not accessible from outside the closure.

• Closures can be used to create private variables and methods.

• Example: function outer() { var x = 10; function inne...read more

First level cache is located inside the CPU core and is smaller but faster, while second level cache is larger but slower.

• First level cache is typically around 32KB-256KB in size and is faster than second level cache.

• Second level cache is larger, around 256KB-8MB, and is slower than first level cache.

• Cache mechanism involves storing frequently accessed data closer to the CPU for faster access times.

A singleton is a design pattern that restricts the instantiation of a class to one object.

• Singleton pattern ensures that a class has only one instance and provides a global point of access to it.

• Commonly used in scenarios where a single instance of a class is required, such as database connections, logging, or thread pools.

• Example: Singleton pattern can be implemented by creating a static method in a class that returns the same instance every time it is called.

Check power source, cables, and power button for issues.

• Ensure power source is functioning properly

• Check power cables for any damage or loose connections

• Verify power button is not stuck or malfunctioning

Hibernate configuration involves setting up database connection properties and mapping classes to database tables.

• Create a hibernate.cfg.xml file to specify database connection properties

• Define mapping between Java classes and database tables using annotations or XML

• Configure session factory to create sessions for database operations

• Set up transaction management for handling database transactions

BIOS stands for Basic Input/Output System. It is firmware that initializes hardware during startup and provides runtime services.

• BIOS is stored on a chip on the computer's motherboard.

• It performs a power-on self-test (POST) to check hardware components.

• BIOS provides a set of low-level software routines to control hardware devices.

• It allows the operating system to communicate with hardware.

• BIOS settings can be accessed and modified through a BIOS setup utility.

• Updating BIOS ca...read more

Battery drains fast due to various factors.

• Background apps running in the background consume battery power.

• Screen brightness set to high drains battery quickly.

• Continuous usage of power-hungry apps like gaming or video streaming.

• Weak cellular or Wi-Fi signal forces the device to work harder, draining battery faster.

• Battery health degradation over time reduces its capacity to hold charge.

• Using power-hungry features like GPS, Bluetooth, or NFC for extended periods.

• Frequent push...read more

Challenges and risks are inevitable in any project.

• Scope creep can lead to delays and increased costs.

• Poor communication can cause misunderstandings and mistakes.

• Lack of resources can hinder progress and quality.

• Unforeseen events such as natural disasters can disrupt the project.

• Failure to manage risks can result in project failure.

• Inadequate planning can lead to missed deadlines and objectives.

Prime number code in C checks if a given number is prime or not.

• Use a loop to check if the number is divisible by any number from 2 to its square root.

• If the number is only divisible by 1 and itself, it is a prime number.

• Example: int isPrime(int num) { for(int i=2; i*i<=num; i++) { if(num%i == 0) return 0; } return 1; }

A palindrome sequence is a sequence of characters that reads the same forwards and backwards.

• Palindrome sequences are often used in programming to check for symmetry or to create puzzles.

• Examples of palindrome sequences include 'racecar', 'madam', and 'level'.

Two-tier architecture consists of presentation layer and data layer.

• Presentation layer handles user interface and client-side logic.

• Data layer manages data storage and retrieval.

• Example: Web application with frontend (presentation layer) and backend database (data layer).