1- Angular - promise vs observable
2-boxing vs unboxing
3-int vs Integer in c#
4- what cassandra role in ur project
5-sql funtions vs stored proc
6- script to delete duplicate record execpt 3 no of record
7-get employee highest salary
8-linked server in sql ,how to query from one db to another db
9-how to mask password in sql
10-reference vs value type
11- what are the ref and value data type
12-web api return type
13- factory design pattern
14 -interface vs abstract
15-when we have to use abstract in ur project
16-primitive data type in c#
17-Ienumerable vs Iqurable
18-how garbage collection works
19-Generics in c#
20- git tag
21-git flow
22-sprint velocity
23-story
24-jira
25 -cicd
26-sonar qube
27-ansible
28-how to create pipeline
29-what services you have used in aws
30-lambda funtion in ur project
31-what things we can do via lamda
32-heimdal data
33-why .net core 6 then 3.1
34-find the employee and manager name by empid,empanme,managerid
35 find the employee level by query and recursive method empid,empname,managerid ,level
if level is 1 for emp who is ceo and not having manager, and manager level will 2 then empl level will
be 3
36-moq and nunit
27-how to access lambda funn via url and non url from code
28-ec2 use in project
29-how to deploy in ec2
30 -how to make syncronous communication via microservices
31-aws loadbalncer
32-aws serverless coading
33-aws native apps
34-design pattern -creational,structural,behavioural
35- what is user story and how to define
36 how to define user strory what we write
37- how to write acceptance criteria
38 -git commands
39 -how .net core app deploy /host to servers
40- congnito ,saml in aws lamda
41- Redis cache clustering , sliding expiration
42-library used to integrate in .net core
43- what is middleware
44- app.use vs app.run
45- what authentication mechanishm used in aws lambda and api gateway
46-jwt authentication
47-sns and sqs in aws
48-how to write unit test cases and how to mock
49 - how to write unit test cases with aws lambda function
50-how to integrate aws sns ,sqs from .net code
51- how to deploy .net web api to aws lambda
52 -automapper and dapper
53 how to define mapping in ef
54- hot debug aws lambda fn in local visual studio
55- how lambda function trigger for web api
56- truncate vs delete
57-write linq to find the second highest salryy in entitiy
58- default values for first and firstordefault
59-aws dsor
60 -how to find the estimate of project
61- what challenges you have faced in your project
62- what guidance you have given to your junior
63- primary can be combination of multiple columns
64- look and say 1 11 21 series
65- find the vowels count from string input in linq
66- find the second highest salary using linq
67 - DB context code
68- how to deploy the code first appoach to db
69- find top 3 highest salary by department wise from employee and department table
70 -how to off foreign key constraint in table for deleting dependent table
71- builder and chain of responsibility pattern
72 how to write unit test case for webapi ,api lambda funtion, and database project, and DAL layer
73- ngtemplate vs ngcontainer
74- factory design pattern
75- forkjoin in angualr
76-table vs temp vs cte
77-write linq from emp and deptid find the all employee having dept and not deptid
78- how to send mail and message via aws sns and sms if aws sms is failed then how to get notification
79- pivot in sql
80-Dependency injection in angular and c#
89- web hooks in angular
90-ng hook cycle
91- subject in angular
92- how to transfer value from one component to other if they are not link together
93-leg and lead in sql
94-decorator
95-how to add properties from common place in .net core/ef
96- ngcontent,ngtemplate vs ngcontainer in angular
97-content projection in angular
98-remove duplicate character from string
99- find second highest no from array
100-can we create multiple router-outlet in anglar
101- how to use commone style css to apply only defined component in angualr
102-pattern in microservices
103 how to make microservices as non failure or fault tolerance
104 how to do deploy service to make non stopped
105- cqrs and saga, circuit breaker
106- command pattern
107-use custom directive in angular
108- Addtrasnient vs addscopped
109 -Oauth
110 -S3 library used in .net
111 - perforamnce tuning in sql
112 what checks in code review and query
112- .net core 3.1 vs 6 vs 8
113 angualr latest version comparison
114- clousure in javascript
115 -API versioning different type of version like url ,api header,parameter
116-how to divide microservices
117- dictionary vs list which one has good time complexity
118- generic func vas delegate func
119 - how to handle synchronous and ashncronous libraray to make it run Task.Run
120 UML
121-what things you have to done to improve the process for client and company level?
1- problem faced in lif and project
2- what isgood thing in life and project
3- how to managee mentor junior
4- mistake in life and what learn
dependenc inject framewrok problem stametn how to resolve more focus on this
rest api microsriveses all question related to real project scenarios
cicd and sonar qube how implemented docker in project,aws and code refactor tool
thread safety yin .net
caching in real scenario
join before 5 min
public void PrintCharOcurrnace()
{
string str = "abcddeeffgg";
Dictionary<char,int> dict= new Dictionary<char,int>();
char[] strChar= str.ToCharArray();
for(var c in strChar)
{
if(dict.Contains(c))
dict[c]= dict[c]+1;
else
dict.Add(dict[c],1);
}
foreach(var d in dict)
{
Console.WriteLine(d.Key + " " + d.Value);
}
}
string str= "abcddeeffgg";
Write a SQL query to return the result of only
latest order from each year of every customer,
DB Column name which print as
output is: CustName, CustAddress, OrderDate
Tables Info:
TblCust: CustID, CustName, CustAddress, OrderID
TblOrder: OrderID, OrderNumber, OrderDate
Select * from TblCust c inner join TblOrder o on
c.OrderID=o.OrderID
group by OrderDate
order by o.OrderDate desc
;with cte
{
select DenseRank() over(Partition By Customer order by Cast( o.orderdate,year ) desc) rnk
c.CustName , c.CustAddress, o,OrderDate from
TblCust c inner join TblOrder o on
c.OrderID=o.OrderID
}
select CustID, CustName, CustAddress, OrderID
from cte where rnk =1
a=15
fucnton (int a)
int[] arr ={1,2,3...10}
--traverse array
- take 1 or second in seq then add with next no and
- store the index temp and no key value
-if found then reurn the key value pair
int[] arr =[1,2,3...10]
for()
class
2*3
interface IOperation
{
int Multiply(int a,int b);
}
public class Calcultor : IOperation
{
public int Multiply(int a,int b)
{
return a*b;
}
}
public class Custorm
{
private IOperation _opration;
public Custorm( IOperation operation)
{
if
_operation=operation;
}
public int Get()
{
_operation.Multiply(2,3);
}
}
service.AddScopped<IOperation, Calculator>();
T1,T2
id, id foreinkey
select * from T1 inner join on T1.status=T2.status
var result= from T in T1
join T2
on T.status.equals(T2.status)
select id,status
Get
Upesert
Delete
T1,T2
1 -
2,
3
;with Cte as
(
select ROw_number() over(partion by id,name,phone order by id) rnnk from T1 inner join
)
select * from cte where rnk >=1
#temp id(10) , name , employee - id name(1 lac )
select * from #temp t right join employee e on t.id=e.id
where t.id is not null
public Inteface IFruit
{
public string GetColor();
public string GetColor(string str );
}
public class Apple :IFruit
{
public string GetColor()
{
return "red";
}
public string GetColor(strnig str)
{
return "red";
}
}
public class Orange :IFruit
{
public string GetColor()
{
return "orange";
}
public string GetColor(strnig str)
{
return "red";
}
}
public class Main
{
Ifruit fruti= new Orange();
fruite.Getcolor();
}
EMployee
var query= from s in emp.Distinct
select s.Take(2).OrderByDesceding() rec
from r in rec
select rec.Take(1).OrderbyAscending()
public class MultLcs<T> where
{
public async Task< int> Mul(int x,int y)
{
return await
}
}
public interface IOperation
{
int Mul(int x,int y);
}
public class NumberCls
{
private IOperation _operation;
public NumberCls(IOperation operation)
{
_operation=operation;
}
public Task<int> Method()
{
return await _operation.Mult(3,4);
}
}
delegate del =(x,y)=>{
return x*y;
}
del(4,5)
1 11 21 1211 111221 312211
one , one one
1
1+10
emp
empid ,name salary,deptid
dept
dpid,name
with Cte as
(select Dense_Rank() over(partition by deptid order by salary desc) rnk ,*)
select * from cte where rnk<=3
salary
10000 -1
8000 -2
7000-3
7000-3
6000-4
string
public int GetCount(string str)
{
string[] v= ['a','i','o','e','u'];
char[] cr= str.ToCharArray();
await var q= from s in v
join from i in cr
on s.equaly(i)
select cr.ToList().Count()
}
interface IOperatoin
{
void DoPayment(string str);
}
public class DebitCard :IOperation
{
public void DoPayment(string str)
{
}
}
public class CreditCard :IOperation
{
public void DoPayment(string str)
{
}
}
public class VoucherCard :IOperation
{
public void DoPayment(string str)
{
}
}
a=2
b=3
a= a+b; =5
b=a-b =2
a=a-b;=3
c =a; = 2
a=b; =3
b=c
*
**
***
****
int j=1;
for(int i=0;i<10; i++)
{
for(k=0;k<=j;k++)
Console.WriteLine(*);
j =j+1
}
var query= from e in Employee
join d in Dept
on e.deptid equals d.deptid
select e
public class Employee<T>
{ public T GetValue( T value)
{
return value;
}
}
forkjoin
empid
1 1
2 2
2
3
deptid
1
2
3
4
inteface IOperation
{
bool DoPayment();
}
public class DebitCard\{
bool DoPayment()
{
}
}
public class CreditCard\{
bool DoPayment()
{
}
}
public class DebitCardFactory
{
public string type="debit"
public IOperation CustomeMethod(string type)
{
return new DebitCard();
}
}
public class CreditCardFactory
{
public string type="credit"
public IOperation CustomeMethod(string type)
{
return new DebitCard();
}
}
aws sdk
aws eventbridge
aws kinesis
mirror maker mm2
aws glue
kafka cli
vpc
security in aws
kafka cluster clie through
lambda
terraform
aws iam
infrastruction as code java
firehouse
Given a binary string (containing only "1" or "0"), find the minimum number of flips required to get a homogenious binary string (consisting of all "1"s or all "0"s). A flip is considered to be changing a series of similar characters.
Eg. 00111000011110 => 2
arr0 = 00
arr1=
arrf= 11
arr =
public int GetFlips(string str)
{
char[] arr = str.ToCharArray();
char[] arr0 ;
char[] arr1;
int counter1=0
int counter2=0
int zeroCount=0
int oneCount=0
for(int i=0;i<arr.Lenth; i++)
{
if(arr[i]=='0' )
{
zeroCount=zeroCount+1;
continue;
}
else if(zeroCount>0)
{
counter1=counter1+1;
zeroCount=0;
}
if(arr[i]=='1' )
{
oneCount=oneCount+1;
continue;
}
else if(oneCount>0)
{
counter2=counter2+1;
oneCount=0;
}
if(counter1<counter2)
{
retunr counter1
}
else
return counter2
)
public class EmployeeBAL:IEmployeeBAL
{
public int AddEmployee(Employee emp)
{
int noRecords=_Dal.AddEmployee(emp);
return noRecords;
}
}
Employee emp =new Employee();
emp.Id=1;
emp.Name= "Test";
Moq. <IEmployeeBAL>.AddEmployee() return =
Assert.
List<int> templist =
new List<int>() { 5, 7, 13, 24, 6, 9, 8, 17 };
var query=
credit:IPayment,
debit:IPayment
interface IPayment
{
void DoPayment();
}
IFruit
class Apple :IFruit
{
getColor()
{
retrun "Red
}
}
class Orange:IFruit
{
getColor()
{
retrun "organgge
}
Applet ojbj = new Orange()
delage void Add(T v ,)
with Cte as
{
select Dense_Rank() over(partionby City order by salary desc) rnk,City,Salary
}
select * from cte where rnk =1
const arr = [1, 2, 3, 4, 5];
for (let i = 0; i < arr.length; i++) {
setTimeout(function () {
console.log(i);
}, 1000);
}
oops
.net core host, servers asp.net core
approached to modernaize a monoalithign to microservice
async await
unit testing
code review di,
task vs thread
api gateway setup - using from code
sqs
add scoped ,addtransient
DI concept
how to call api end point hosted in lambda
how to deploy deploy functions
ORM
Fault tolerance in cloud
code refactor make testablity
Cors
api gateway
Avalavility zone
ssh
code smells quesions
load balancer
difference b/w thread and asynchronous programming
Iquerable vs Ienumerable
hastable vs dictionary
maintain session between multiple servers
and managing reqest through load balancer
diff b/w inproc and outproc session
content negotiation
overloading vs overriding
how to improve the performance of our api
how to secure api
how to use httphandler and httpmodule in asp.ent
concecpt in .net core
sticky session
different feature of api gateway
instead of sns can we use differnt componnet to send msg
what is serverless
how lambda trigger in differnt ways
aws lambda advantanges and disadvantages
- arraylist vs List which one is fast
-how you manage memory management in c#
-how garbage collection works
-difference between collection and collection.generic
-do we need to close sql and file connectoins
-do we have default constructor in abstract
-when abstract constructor called
-what is need of static constructor which type of variable we initialize in static construcor
-how jwt created
-how to decode the jwt in api and front end side
-what is configureawait and getawaiter
-How Addscopped and addtransient
-azure cicd, resource creation like ami, service bus
-concurrent dictoinary
-
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