"Clarifying questions:
Do we want to focus on front end or backend?
Front end
Do we want to focus on any particular platform? For ex: Site, mobile, apps
Interviewer: Desktop
Is there anything tools on gmail that you'd like me to focus on? For ex: Meet, Hangouts, Notes
Interviewer: Just the main product
Are there any specific product buckets that you'd like me to go through? For ex: Sign up flows, login flows, security, product experience, sign out flow, recommend"
Amy M. - "Clarifying questions:
Do we want to focus on front end or backend?
Front end
Do we want to focus on any particular platform? For ex: Site, mobile, apps
Interviewer: Desktop
Is there anything tools on gmail that you'd like me to focus on? For ex: Meet, Hangouts, Notes
Interviewer: Just the main product
Are there any specific product buckets that you'd like me to go through? For ex: Sign up flows, login flows, security, product experience, sign out flow, recommend"See full answer
"DNNs can learn hierarchical features, with each layer learning progressively more abstract features, and generalizes better. SNNs are better for simplier problems involving smaller datasets and if low latency is required."
Louie Z. - "DNNs can learn hierarchical features, with each layer learning progressively more abstract features, and generalizes better. SNNs are better for simplier problems involving smaller datasets and if low latency is required."See full answer
"Abstract class
A class that can have Abstract methods - without implementations and Concerete Methods i.e with implementation.
Can have private, protected and public access modifiers.
Supports Single inheritance i.e a class can extend only 1 abstract class
Can have constructors
Mainly used when sharing common behaviors
Interface Class
A collection of abstract methods ( can have static and default methods also - onwards of java 8)
Public, static, final are the access"
Sue G. - "Abstract class
A class that can have Abstract methods - without implementations and Concerete Methods i.e with implementation.
Can have private, protected and public access modifiers.
Supports Single inheritance i.e a class can extend only 1 abstract class
Can have constructors
Mainly used when sharing common behaviors
Interface Class
A collection of abstract methods ( can have static and default methods also - onwards of java 8)
Public, static, final are the access"See full answer
Software Engineer
Concept
+2 more
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"Imagine a blockchain as a magical, unchangeable diary that keeps track of all the candies you share with your friends. Whenever you share a candy, you write it down in this special diary, and your friends also write it down in their diaries. But here's the cool part – all the diaries are connected and can talk to each other!
So, when you want to know who has borrowed your candy or if you borrowed candy from someone else, you just check this special diary. It shows you the history of all the can"
Maedu E. - "Imagine a blockchain as a magical, unchangeable diary that keeps track of all the candies you share with your friends. Whenever you share a candy, you write it down in this special diary, and your friends also write it down in their diaries. But here's the cool part – all the diaries are connected and can talk to each other!
So, when you want to know who has borrowed your candy or if you borrowed candy from someone else, you just check this special diary. It shows you the history of all the can"See full answer
"in simple words, linear regression helps in predicting the value whereas logistics regression helps in predicting the binary classification.
But lets talk through some example
Linear regression model: E-commerce website pricing recommendation engine is built on linear regression model where we do have some variables such as competitor price, internal economics and consumer demand etc when we put this in a supervised learning model, it helps in predicting prices
Logistics regression model"
Anonymous Aardvark - "in simple words, linear regression helps in predicting the value whereas logistics regression helps in predicting the binary classification.
But lets talk through some example
Linear regression model: E-commerce website pricing recommendation engine is built on linear regression model where we do have some variables such as competitor price, internal economics and consumer demand etc when we put this in a supervised learning model, it helps in predicting prices
Logistics regression model"See full answer
"Clarifying questions:
Is this a standalone product or a Meta integrated product?
Which region is this for? US or another region or global?
Is this for a county run library or a more informal group community library?
Assumptions:
It's a meta integrated product
US based system
group run community library
Let's see if a lending library fits into Meta's company mission to build community and bring people closer together. Yes, a lending library does build community by helping peop"
Hari S. - "Clarifying questions:
Is this a standalone product or a Meta integrated product?
Which region is this for? US or another region or global?
Is this for a county run library or a more informal group community library?
Assumptions:
It's a meta integrated product
US based system
group run community library
Let's see if a lending library fits into Meta's company mission to build community and bring people closer together. Yes, a lending library does build community by helping peop"See full answer
"Is it bad to get the answer a different way? Will they mark that as not knowing Bayes Theorem or just correct as it is an easier way to get the answer?
The way I went is to look at what happens when the factory makes 100 light bulbs. Machine A makes 60 of which 3 are faulty, Machine B makes 40 of which 1.2 are faulty. Therefore the pool of faulty lightbulbs is 3/4.2 = 5/7 from machine A and 1.2/4.2 = 3/7 from Machine B."
Will I. - "Is it bad to get the answer a different way? Will they mark that as not knowing Bayes Theorem or just correct as it is an easier way to get the answer?
The way I went is to look at what happens when the factory makes 100 light bulbs. Machine A makes 60 of which 3 are faulty, Machine B makes 40 of which 1.2 are faulty. Therefore the pool of faulty lightbulbs is 3/4.2 = 5/7 from machine A and 1.2/4.2 = 3/7 from Machine B."See full answer
"1) select avg(session) from table where session> 180
2) select round(sessiontime/300)*300 as sessionbin, count() as sessioncount from table group by round(sessiontime/300)300 order by session_bin
3) SELECT t1.country AS country_a,
t2.country AS country_b
FROM (
SELECT country, COUNT(*) AS session_count
FROM yourtablename
GROUP BY country
) AS t1
JOIN (
SELECT country, COUNT(*) AS session_count
FROM yourtablename
`GROUP BY countr"
Erjan G. - "1) select avg(session) from table where session> 180
2) select round(sessiontime/300)*300 as sessionbin, count() as sessioncount from table group by round(sessiontime/300)300 order by session_bin
3) SELECT t1.country AS country_a,
t2.country AS country_b
FROM (
SELECT country, COUNT(*) AS session_count
FROM yourtablename
GROUP BY country
) AS t1
JOIN (
SELECT country, COUNT(*) AS session_count
FROM yourtablename
`GROUP BY countr"See full answer
"Picking the value of 'k' can be little tricky. One simple approach would be to start with elbow method. Try different 'k' values and plot them on a graph like an experiment.
When the graph starts to look like an elbow, that's a good 'k' to pick!
Also keep in mind you may not always have clearly clustered data. The elbow may not be clear and sharp as you expect.
Hope this helps."
Praveen D. - "Picking the value of 'k' can be little tricky. One simple approach would be to start with elbow method. Try different 'k' values and plot them on a graph like an experiment.
When the graph starts to look like an elbow, that's a good 'k' to pick!
Also keep in mind you may not always have clearly clustered data. The elbow may not be clear and sharp as you expect.
Hope this helps."See full answer
"I got to play with a VR for the first time a few weeks ago at my friend’s house and I loved it, so this is a really fun question.
Clarifying Questions
Is this something we are looking to create Microsoft or are we a startup company etc? >
Education can refer to elementary, high school, university, or even self-learning (e.g. Udemy). Is there a specific area we want to focus on? << What do y"
Rohan S. - "I got to play with a VR for the first time a few weeks ago at my friend’s house and I loved it, so this is a really fun question.
Clarifying Questions
Is this something we are looking to create Microsoft or are we a startup company etc? >
Education can refer to elementary, high school, university, or even self-learning (e.g. Udemy). Is there a specific area we want to focus on? << What do y"See full answer
"BETWEEN and HAVING clauses in SQL serve different purposes:
1. BETWEEN Clause
Used to filter rows based on a range of values.
Works with numeric, date, or text values.
Can be used with WHERE or HAVING clauses.
The range includes both lower and upper bounds.
Example: Filtering employees with salaries between 30,000 and 50,000
`SELECT * FROM Employees
WHERE salary BETWEEN 30000 AND 50000;`
2. HAVING Clause
Used to filter **groups"
Meenakshi D. - "BETWEEN and HAVING clauses in SQL serve different purposes:
1. BETWEEN Clause
Used to filter rows based on a range of values.
Works with numeric, date, or text values.
Can be used with WHERE or HAVING clauses.
The range includes both lower and upper bounds.
Example: Filtering employees with salaries between 30,000 and 50,000
`SELECT * FROM Employees
WHERE salary BETWEEN 30000 AND 50000;`
2. HAVING Clause
Used to filter **groups"See full answer
"I faltered on this question. I haven't given a PMM interview in a very long time since I moved from marketing to pure product management.
I chose DownDog Yoga App as my preferred app, since I use either either their sleep meditations or the yoga app thrice a week. The feature that was introduced was Aerial Yoga (the interviewer made it as a feature)
I went with the assumption that Aerial Yoga is something that needs to be driven off-line rather than online - requires studio space, infrastructr"
Garima B. - "I faltered on this question. I haven't given a PMM interview in a very long time since I moved from marketing to pure product management.
I chose DownDog Yoga App as my preferred app, since I use either either their sleep meditations or the yoga app thrice a week. The feature that was introduced was Aerial Yoga (the interviewer made it as a feature)
I went with the assumption that Aerial Yoga is something that needs to be driven off-line rather than online - requires studio space, infrastructr"See full answer
"Let's split the experience in four parts:
Time between order is placed and order is waiting to be prepped by the shopper.
Time between order is prepped by the shopper and ready to be picked by the driver.
Time when it's out for delivery.
Post delivery experience.
Now lets think through what can do wrong? How do we define wrong?
A wrong would be anything where a customer has a negative experience. Let's dive into the when things could potentially go wrong.
**order is placed and"
Pree M. - "Let's split the experience in four parts:
Time between order is placed and order is waiting to be prepped by the shopper.
Time between order is prepped by the shopper and ready to be picked by the driver.
Time when it's out for delivery.
Post delivery experience.
Now lets think through what can do wrong? How do we define wrong?
A wrong would be anything where a customer has a negative experience. Let's dive into the when things could potentially go wrong.
**order is placed and"See full answer
"In details: setting k=1 in KNN makes the model fit very closely to the training data, capturing a lot of the data's noise and leading to a model that may not generalize well to unseen data. This results in a high-variance scenario."
Taha U. - "In details: setting k=1 in KNN makes the model fit very closely to the training data, capturing a lot of the data's noise and leading to a model that may not generalize well to unseen data. This results in a high-variance scenario."See full answer
"If this question was for a product manager;
I would approach it as I don't really know how actually these vehicles work.
I will try to simplify the concept and answer questions like why autonomous vehicles are exists and what is the purpose of them.
Autonomous vehicle is a vehicle can do some actions on behalf on a human and as main reason is to increase the safety, so to come up into how they work, I should identify the main actions that human does and prioritize it based on what they may"
Nouna J. - "If this question was for a product manager;
I would approach it as I don't really know how actually these vehicles work.
I will try to simplify the concept and answer questions like why autonomous vehicles are exists and what is the purpose of them.
Autonomous vehicle is a vehicle can do some actions on behalf on a human and as main reason is to increase the safety, so to come up into how they work, I should identify the main actions that human does and prioritize it based on what they may"See full answer