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Ans. AWS Identity And Access Management (IAM) is a webservice provided by AWS platform that provides access control capabilities (authentication and authorization) to AWS resources.

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Q1985. What is an AWS placement group

Ans. It is a logical grouping of instance with a single availability zone to prevent latency.

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Q1986. Name types of AWS Elastic Load Balancers.

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Q1987. How would you secure resources in Cloud ?

Cloud Computing

Ans. There are multiple types of security GCP provides to every customer. Data, Network, Compute, and Services. Each service have its own security layer and Google provides clients to build as per the GCP best practices like building VPC, IAM, Firewall rules and so on

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Q1988. how would you build application stack using Cloud Formation ?

Ans. Open the AWS CloudFormation console at https://console.aws.amazon.com/cloudformation . Create a new stack by using one of the following options: Choose Create Stack. This is the only option if you have a currently running stack.

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Q1989. How can we protect an application from an XSS attack ?

Security

Ans. By properly encoding data while persisting as well as retrieval.

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Q1990. Design Texas Hold Em poker game

Design

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Q1991. Write a program to make an array act as a set.

Ans. public Set convertArrayToList(T array[]) {
Set set = new HashSet<>(Arrays.asList(array));
return set;
}

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Q1992. Write a unit test case using java 8.

JUnit

Ans. public List convertAllToUpperCase(List words) {
return words.stream().map(String::toUpperCase).collect(Collectors.toList());
}

@Test
public void testAllToUpperCase() {
List expected = Arrays.asList("JAVA8", "STREAMS");
List result = convertAllToUpperCase(Arrays.asList("java8", "streams"));
assertEquals(expected, result);
}

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Q1993. How would you design the database schema for an event?

Database

Ans. Broad question, but if the company need velocity, think about use a NO SQL instead of regular SQL databases.

Also prefers materialized views instead of joins to fetch data quickly.

Regarding the database design, there are very good design tools for professional database (to develop proper indexes and good database design) one of the best is QuickDBD

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Q1994. What are your goals: personal, business, financial

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Q1995. What are the advantages and disadvantages of Lambda Expression ?

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Q1996. When you build an angular application, what type of file it creates which we can deploy?

Angular JS

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Q1997. How you debug and troubleshoot slowness with a REST call?

Rest

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Q1998. Give an example of a time when someone provided critical feedback on your work

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Q1999. If you see bad code, would you rewrite it?

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Q2000. Can the value of a static variable be changed ?

Ans. Yes the value of a static variable can be changed. It's the final keyword that restrict the modification of value not static.

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Q2001. Difference between XSS and CSRF ?

Security

Ans. SRF attack requires an authenticated session, whereas an XSS attack doesn’t.
XSS doesn’t require any user interaction.CSRF is restricted to the actions the victim can perform.
XSS requires a vulnerability to happen, whereas CSRF relies on tricking the user to click a link or access a page.
CSRF can only send an HTTP request but cannot view the response. XSS can send and receive HTTP requests and responses to extract the required data.

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Q2002. How can we create an arraylist of unique values ?

Ans. We can put the value in a set to enforce uniqueness and then dum those value into an arraylist.

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Q2003. How do you evaluate a product while migrating to open source ?

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Q2004. Write a Program to find out negative numbers in a list.

Design

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Q2005. Which set of technologies do you use in your company ?

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Q2006. Difference between Let and Var in Javascript ?

JavaScript

Ans. Var scopes the variable to the nearest function whereas Let scopes the variable to nearest block.

For example -

function printNumbers() {
for(var i = 1; i < 3: i++){
console.log(i);
}

console.log(i); // works fine and will print 3 as i has a function scope and not local loop scope
}

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Q2007. What is the difference between Angular JS (version 1x) and Angular (version 2x) ?

Angular

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Q2008. What is HMR or Hot Module Replacement in Angular ?

Angular JS

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Q2009. What is arrow function in Typescript ?

TypeScript

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Q2010. Interface vs Abstraction