dotnet interview questions

OOPS
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what is pure abstract class?
whta is simple abstract class
wht is an interface
can we inherit a class in an interface
static class
do static class has an constructor
when do they sit in memory
wht is virtual class

Framework
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what is difference between idisposable and finalizer
what is garbage collection
what is diference between value type and refenrece type
wht is heap and stack memory
wht is boxing and unboxing
pls explain string x ="123"; wht happens in memory
how memory is managed
what is manged code and unmamaged code
hashtable and idictionary
appdomain
wht are generics
wht is the diferene between arraylist and array
how to copy one object into another
using keyword
wht is difference between ref and out
wht is diff between runtime and compile time
wht is searching - in depth search, shallow search

asp.net
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wht is diff between get and post
what happens when i write http://localhost/appname/pagename.aspx
wht is the role of viewstate
wht actually is stored in viewstate
when is ispostback property set in asp.net
on which event and in which class the ispostback property set

sql server
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wht is referential integrity
wht are stored procedures
wht is indexing
wht is the difference between clustered and non clustered indexes
how are queries in sql complied
is there any other type of indexes
wht is difference between left outer join and left join
deadlock
replication
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features in asp.net 3.5
what is charm of having web.config file?
why we use global.asax?
what is the main benifits of generic classses
how can we update web.config without down the site
can we have try catch within a try-catch
can we write try without catch
can we write finally
how many finnally we can have
can we have try-finally block
can we have try-catch-catch
if we have try-try-catch is it feasible
form authentication
role based security
caching
fragment caching
what is generics
what is garbage collector
cookieless sessions
heap and stack memory
how can we store variables in client side
wht are session side magements
wht is the cocept of partial clasess
wht is inheritence
wht is static keworrd
wht is static constructor
how in memory static variables stored
abstract classes
visual source safing

CTE
indexes
when shd we use indexes
transactions
triggers
how to complie stored procedures
what is the use of network wali koi command thi
how can we next transactions
difference between stored procedure and inline query