Little Big World Preschool Teacher Lead Interview Questions and Answers

NACL and security groups are both AWS network security features, but NACL operates at the subnet level while security groups operate at the instance level.

• NACL is stateless while security groups are stateful

• NACL can allow or deny traffic based on IP addresses, protocols, and ports while security groups only allow traffic

• NACL rules are evaluated in order while security group rules are evaluated independently

• NACL can be ...read more

Public and private subnets can be identified based on their IP address range and their accessibility from the internet.

• Public subnets have IP addresses that are accessible from the internet.

• Private subnets have IP addresses that are not accessible from the internet.

• Public subnets are typically used for resources that need to be accessed from the internet, such as web servers.

• Private subnets are typically used for resou...read more

S3 is for frequently accessed data while Glacier is for long-term archival storage.

• S3 is designed for frequently accessed data while Glacier is for long-term archival storage.

• S3 has low latency retrieval times while Glacier has higher retrieval times.

• S3 is more expensive than Glacier for storage and retrieval.

• Glacier has a tiered pricing model based on retrieval times and storage duration.

• S3 is suitable for storing dat...read more

AMI is a virtual machine while S3 is a storage service in AWS.

• AMI stands for Amazon Machine Image and is a pre-configured virtual machine that can be used to create EC2 instances.

• S3 stands for Simple Storage Service and is a scalable object storage service that can be used to store and retrieve data.

• AMI is used to create EC2 instances while S3 is used to store and retrieve data.

• AMI is used for computing while S3 is use...read more

The parameter for creating group policy using JSON is a JSON object containing the policy settings.

• The JSON object should include the policy name, description, and settings.

• The settings can include values for registry keys, security options, and other policy settings.

• Example: {"policyName": "Password Policy", "description": "Enforces password complexity requirements", "settings": {"MinimumPasswordLength": 8, "PasswordC

Python interpreter is a program that executes Python code.

• It reads Python code and converts it into machine-readable code

• It executes the code line by line

• It also provides a command-line interface for interactive programming

• Examples: CPython, Jython, IronPython

Python was developed by Guido van Rossum in the late 1980s.

• Guido van Rossum started working on Python in December 1989.

• Python's design philosophy emphasizes code readability and ease of use.

• Python is an interpreted, high-level, general-purpose programming language.

• Python's popularity has been steadily increasing over the years.

• Python is open-source and has a large community of developers contributing to its development

PEP8 is a style guide for Python code.

• PEP8 provides guidelines for formatting, naming, and organizing Python code.

• It covers topics such as indentation, line length, variable naming, and function and class definitions.

• Adhering to PEP8 can improve code readability and maintainability.

• Tools such as Flake8 and PyLint can be used to check code against PEP8 standards.

Python has several built-in data types including integers, floats, strings, booleans, lists, tuples, and dictionaries.

• Integers are whole numbers without decimals

• Floats are numbers with decimals

• Strings are sequences of characters

• Booleans are either True or False

• Lists are ordered collections of items

• Tuples are ordered, immutable collections of items

• Dictionaries are unordered collections of key-value pairs

A class is a blueprint for creating objects that have similar properties and behaviors.

• A class is a user-defined data type that encapsulates data and functions.

• It provides a way to organize and structure code.

• Objects are instances of a class.

• Classes can inherit properties and behaviors from other classes.

• Example: A class 'Car' can have properties like 'color', 'model', and behaviors like 'start', 'stop'.

An object is an instance of a class that encapsulates data and behavior.

• Objects are created from classes

• They have attributes (data) and methods (behavior)

• Objects can interact with each other through method calls

• Examples include a car object with attributes like make, model, and color, and methods like start and stop

• Another example is a person object with attributes like name and age, and methods like walk and talk

Inheritance is a mechanism in object-oriented programming where a new class is created by inheriting properties of an existing class.

• Inheritance allows code reuse and promotes code organization.

• The existing class is called the parent or superclass, and the new class is called the child or subclass.

• The child class inherits all the properties and methods of the parent class and can also add its own unique properties and ...read more

Multiple inheritance is the ability of a class to inherit properties and behavior from multiple parent classes.

• It allows a class to inherit from more than one parent class.

• It can lead to the diamond problem where a class inherits from two classes that have a common base class.

• Languages like C++ support multiple inheritance while others like Java do not.

• Example: A class can inherit properties from both a 'Vehicle' class...read more

Data abstraction is the process of hiding implementation details and showing only the necessary information to the user.

• Abstraction is achieved through abstract classes and interfaces

• It helps in reducing complexity and increasing efficiency

• Example: A car dashboard shows only necessary information like speed, fuel level, etc. and hides the internal workings of the car

• Abstraction is one of the four fundamental concepts o

An object is an instance of a class that encapsulates data and behavior.

• Objects have attributes (data) and methods (behavior).

• Objects can interact with each other through method calls.

• Objects can be created from classes.

• Examples of objects include a car, a person, or a bank account.

Multi threading is the ability of a program to perform multiple tasks concurrently.

• It allows for better utilization of CPU resources

• It can improve program performance and responsiveness

• Examples include web servers handling multiple requests simultaneously

• It requires careful management of shared resources to avoid race conditions

Yes, we can create multiple objects in programming.

• Objects are instances of a class.

• We can create multiple objects of the same class.

• Each object has its own set of instance variables and methods.

• Objects can interact with each other through their methods.

• Example: creating multiple instances of a 'Person' class for different people.

Encapsulation types are data, procedural and combination.

• Data encapsulation hides data from outside world and provides access through methods.

• Procedural encapsulation hides implementation details of a procedure.

• Combination encapsulation is a mix of data and procedural encapsulation.

• Examples include private variables in a class, access modifiers in Java, etc.