arialdomartini / back-end-developer-interview-questions Goto Github PK

In #6 @monklof asked

I'm the CEO of your Company. Explain me Kanban and convince me to invest on it.
I don't know very well about this, do you mean this?

Actually I referred to Kanban.

Either we add a short description, of a link, or even we change the question.

In #6 @monklof asked

What is the tests influence on design?
Also, I don't know what's 'tests' here, unit test? or experiments before design?

I replied

Yes, I refer to Test Driven Development and emergent design. I should mention TDD more explicitly. I'll send a pull request for this.

Hi Arialdo,

As you said, most of the questions don't have a crystal clear answer but are you planning to write or collect sample answers?

For example, even if your explanation for null at #2 doesn't try to answer the question, it provides more context and nice pointers to check for answer.

expecially -> especially

Commenting the question

In which part of the lifecycle performance should be taken in consideration, and how?

in #6 @monklof asked

"lifecycle performance" or "performance lifecycle"?
"taken in consideration", taken into consideration for what kind of problem?
“and how”, how for what?

I replied

I try to reformulate: "In which part of the lifecycle of a program (during the design phase? after the deployment?) developers should care about performance? What should they do and when?"

We should reformulate the question and make it clearer.

Referring to the question

How would you design a "defragger" utility?

@monklof asked in #6

what is "defragger" ?

May be "File system fragmentation" is a better term?

So far, questions are collected in unordered lists. This makes the maintenance or forks and translations cumbersome when questions are deleted, or order is changed.

Maybe using an ordered list is an option. Probably it makes sense to review what other similar repos do.

About the question

"Individuals and interactions over processes and tools" and "Customer collaboration over contract negotiation" comprise half of the values of the Agile Manifesto. Discuss

@monklof in #6 asked

discuss about what?

My reply was

This is a principle listed in the Agile Manifesto and I think it can be a starting point for interesting discussions. With this question I would like to invite candidates to discuss their opinion about the deep meaning behind this principle. Could you suggest me another way to start a discussion around this principle?

But, yes, here "discuss" is a bit generic. We can improve the qustion.

In #6 @monklof asked

How to deal with failover and user sessions?
what does "user sessions" mean here? do you mean "user session in distributed system"? if so, why put "user sessions" and "failover" in one question?

My reply was

With this question I would like to talk about Session Affinity, Session Stickiness and session management after a server crash, for example like in Bind_session_after_crash_to_failover_node.
I'd love if you can suggest a clearer form.

I think we can find a better way to ask this question.

Would you mind if I translate it into Korean?

In #6 @monklof asked

Write a loop, then transform it into a recursive function, avoiding mutability. Discuss.
what does "mutability" mean here?

As an alternative I proposed

Probably I should write "using only immutable objects".

This should be discusses again.

Ciao @monklof
I think it's a good idea to reference your Chinese translation in the header of the document, so Chinese speakers can easily redirect to your page.

Do you approve?
Ciao!

Commenting the question

As a software engineer you want both to innovate and to be predictable. How those 2 goals can coexist in the same strategy?

in #6 @monklof asked

what do you mean by "be predictable"?

I think we can find a better word.

For each question, include one or more links to possible answers, or resource on the topic, just like @dpk22dev did on his repo.

if ((executionId == "") || (rewrittenUrl == "")) {
I think maybe equals() will be better?
https://github.com/arialdomartini/Back-End-Developer-Interview-Questions/blob/master/README.md#L406

Assign a number or an identifier to each question. This should facilitate referencing to them, and also ease translation tasks.

Each question should have an anchor link.

In #6 @monklof asked

Could you implement Objects in terms of Higher Order Functions, and vice-versa?
Forgive me... I really don't know what this mean?

I don't remember what I meant. I should probably remove the question.

Add @gcaferra's question about what makes a project legacy

In #6 @monklof asked

what does your computer do when you wait? what do you mean by "wait"?

My reply

The question is about what an Operating System does when it idles. It can involve discussions about interrupts, daemons, background services, polling, event handling and so on.

I think "idle" is a more proper term.

The question

Why does array index start with '0' in most of languages?

seems to be entered twice in the section Questions about Code Design

• What does your computer do when you wait?

what do you mean by "wait"?

• Could you implement Objects in terms of Higher Order Functions, and vice-versa?

Forgive me... I really don't know what this mean?

• What is the tests influence on design?

Also, I don't know what's 'tests' here, unit test? or experiments before design?

• Write a loop, then transform it into a recursive function, avoiding mutability. Discuss.

what does "mutability" mean here?

• How would you introduce Continue Delivery in a multi million waterfall shop?

What does "a multi million waterfall shop" mean?

• I'm the CEO of your Company. Explain me Kanban and convince me to invest on it.

I don't know very well about this, do you mean this?

• "Individuals and interactions over processes and tools" and "Customer collaboration over contract negotiation" comprise half of the values of the Agile Manifesto. Discuss

discuss about what?

• How would you design a "defragger" utility?

what is "defragger" ?

• How to deal with failover and user sessions?

what does "user sessions" mean here? do you mean "user session in distributed system"? if so, why put "user sessions" and "failover" in one question?

• In which part of the lifecycle performance should be taken in consideration, and how?

1. "lifecycle performance" or "performance lifecycle"?
2. "taken in consideration", taken into consideration for what kind of problem?
3. “and how”, how for what?

thanks.

In #6 @monklof asked

How would you introduce Continue Delivery in a multi million waterfall shop?
What does "a multi million waterfall shop" mean?

My reply was

I mean a huge company, in a very profitable business. A company for which the change from Waterfall to Continuous Integration would be not trivial, because of all the interactions. Would you help me to describe it with more proper words.

Probably here we can use a better term.