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Psidata Systems Placement Paper

Largest integer can be written from 8 bits is
a. 256
b. 255
c. 8
d. 10

change a hexadecimal no to octal

how many address lines needed to pass 1MB of data.

What is the function of the modulus operator in most language.
a) Sets a system environmental value to either base 10 ,base 8 or base 16
b) Returns the remainder after dividing one number by another
c) Returns the first argument raised to the second argument power
d) Prints out the actual code written to standard output rather than executing the code

class professor{}
class teacher: public virtual professor{};
class researcher: public virtual professor {}
class myprofessor :public teacher,public researcher {};
Referring to the sample code above ,if an object of class myprofessor were created ,how many instances of professor will it contain?
a) 0
b) 1
c) 2
d) 3

Modern RDBMS s perfom the following the following functionc except ______________.
a) Force column values in one table to match any of the values in a column of another table
b) Automatically replicate data on another server
c) Automatically create new indexes based on query history
d) Prevent unauthorized users from accessing data at the firls level

RDBMS triggers are typically bound to a _____________and one or more
a) Table,SQL statement types
b) SQL statement type,user
c) Column,rows
d) User, table

What relationship is resolved by an intersecting or associative entity ?
a) Recursive
b) Mandatory one to one
c) Many to Many
d) One to One

Make a copy of file upper in the directory two levels up .
a) jump -2 upper
b) cp upper ../..(answer)
c) cp upper -2/
d) None of the above

i = 0;
j = 0;

In the (generic) code segment above what will be the value of the variable i at completion ?
a) 0
b) 1
c) 3
d) 9
e) 10

Which of the following statements is true when a derivation inherits both a virtual and non-virtual instance of a base class ?

a) Each derived class object has base objects only from the non virtual instance
b) Each base class object has derived objects only from the non-virtual instance
c) Each derived class object has base objects only from the virtual instance
d) Each derived class object has a base object from the virtual instance and a base object from non-virtual instance.

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