Sunday, March 8, 2026
Latest:

Questions & Answers

(Frequently asked questions)

Questions & Answers › Category: Questions
Filter:AllOpenResolvedClosedUnanswered
_____ helps in reducing latency during service calls
AnsweredAdam asked 4 years ago • 
1827 views1 answers0 votes
A variation of regular Gateway pattern is ______
AnsweredAdam asked 4 years ago • 
1946 views1 answers-1 votes
Gateway is capable of exposing a client to different APIs based on the devices
AnsweredAdam asked 4 years ago • 
1842 views1 answers0 votes
Ideally, an application should use _____ protocols.
AnsweredAdam asked 4 years ago • 
8606 views1 answers0 votes
An API call will be received by the gateway and will be routed to the appropriate microservice
AnsweredAdam asked 4 years ago • 
2724 views1 answers0 votes
_____ does not add anything new, it just re-exposes the existing API with some additional capabilities.
AnsweredAdam asked 4 years ago • 
3827 views1 answers0 votes
An API proxy can act as an API gateway
AnsweredAdam asked 4 years ago • 
4255 views1 answers0 votes
Hyderabad central has announced a new festival discounts which are as follows.
Openpraveen asked 4 years ago • 
871 views0 answers0 votes
Which of the following are allowed values of the argument how of merge method?
AnsweredAdam asked 4 years ago • 
7296 views1 answers0 votes
Which argument is used to override the existing column names, while using concat method?
AnsweredAdam asked 4 years ago • 
4951 views1 answers0 votes
Which of the following argument is used to set the key to be used for merging two data frames?
AnsweredAdam asked 4 years ago • 
7095 views1 answers0 votes
What is the shape of d defined in below code? import pandas as pd s1 = pd.Series([0, 1, 2, 3]) s2 = pd.Series([0, 1, 2, 3]) s3 = pd.Series([0, 1, 4, 5]) d = pd.concat([s1, s2, s3], axis=1)
AnsweredAdam asked 4 years ago • 
6450 views1 answers-1 votes
Which of the following method is used to concatenate two or more data frames?
AnsweredAdam asked 4 years ago • 
4246 views1 answers0 votes
Which of the following argument is used to ignore the index while concatenating two data frames?
AnsweredAdam asked 4 years ago • 
5110 views1 answers0 votes
Consider a data frame df with 10 rows and index [ 'r1', 'r2', 'r3', 'row4', 'row5', 'row6', 'r7', 'r8', 'r9', 'row10']. What does the aggregate method shown in below code do? g = df.groupby(df.index.str.len()) g.aggregate({'A':len, 'B':np.sum})
AnsweredAdam asked 4 years ago • 
18971 views1 answers0 votes
Consider a data frame df with columns ['A', 'B', 'C', 'D'] and rows ['r1', 'r2', 'r3']. Which of the following expression filters the rows whose column B values are greater than 45?
AnsweredAdam asked 4 years ago • 
3522 views1 answers0 votes
Consider a data frame df with columns ['A', 'B', 'C', 'D'] and rows ['r1', 'r2', 'r3']. Which of the following expression filters the rows whose column B values are greater than 45 and column 'C' values are less than 30?
AnsweredAdam asked 4 years ago • 
19330 views1 answers0 votes
Consider a data frame df with columns ['A', 'B', 'C', 'D'] and rows ['r1', 'r2', 'r3']. What does the expression df[lambda x : x.index.str.endswith('3')] do?
AnsweredAdam asked 4 years ago • 
5317 views1 answers0 votes
Consider a data frame df with 10 rows and index [ 'r1', 'r2', 'r3', 'row4', 'row5', 'row6', 'r7', 'r8', 'r9', 'row10']. How many rows are obtained after executing the below expressions g = df.groupby(df.index.str.len()) g.filter(lambda x: len(x) > 1)
AnsweredAdam asked 4 years ago • 
3783 views1 answers0 votes
Which of the following method can be applied on a groupby object to get the group details?
AnsweredAdam asked 4 years ago • 
7731 views1 answers0 votes
Consider a data frame df with columns ['A', 'B', 'C', 'D'] and rows ['r1', 'r2', 'r3'], Which of the following expression is used to extract columns 'C' and 'D'?
AnsweredAdam asked 4 years ago • 
5722 views1 answers0 votes
Consider a data frame df with 10 rows and index [ 'r1', 'r2', 'r3', 'row4', 'row5', 'row6', 'r7', 'r8', 'r9', 'row10']. What does the expression g = df.groupby(df.index.str.len()) do?
AnsweredAdam asked 4 years ago • 
6496 views1 answers0 votes
What does the expression df.iloc[:, lambda x : [0,3]] do? Consider a data frame df with columns ['A', 'B', 'C', 'D'] and rows ['r1', 'r2', 'r3'].
AnsweredAdam asked 4 years ago • 
7529 views1 answers0 votes
Which of the following methods is used to group data of a data frame, based on specific columns?
AnsweredAdam asked 4 years ago • 
6573 views1 answers0 votes
Unrecognized datetime value is treated as _________.
AnsweredAdam asked 4 years ago • 
8438 views1 answers0 votes
Which of the following method is used to eliminate rows with null values?
AnsweredAdam asked 4 years ago • 
3484 views1 answers0 votes
Which of the following argument values are allowed for the method argument of fillna?
AnsweredAdam asked 4 years ago • 
6738 views1 answers0 votes
Which of the following methods is used to remove duplicates?
AnsweredAdam asked 4 years ago • 
6204 views1 answers0 votes
Which of the following method of pandas is used to check if each value is a null or not?
AnsweredAdam asked 4 years ago • 
4478 views1 answers0 votes
Which of the following method is used to fill null values with a default value?
AnsweredAdam asked 4 years ago • 
5272 views1 answers0 votes
1…2829303132…40
Copyright © 2026 EASTER SCIENCE. All rights reserved.