# Investment Corporation - Assistant Programmer - 27.10.2017

সালঃ ২০১৭

4

6

2

##### ২. Bubble sort algorithm sorts n data items using

$O\left({n}^{2}\right)comparison$

$On\left(n\sqrt{n}\right)comparison$

$O\left(n\mathrm{log}n\right)comparison$

$\phantom{\rule{0ex}{0ex}}O\left(n\right)comparison$

SMTP

Telnet

FTP

DNS

##### ৪. Two dimensional arrays are also called

tables arrays

matrix arrays

both a and b

None of the above

##### ৫. Which of the following is an SQL trigger supported by Oracle?

BEFORE

AFTER

None of the above

k

2k

3k

4k

O(n)

O(log n)

On(n2)

O(n log n)

Lower bound

Upper bound

Range

Extraction

--mysum

mysun

my-sun

-my-sun

2

2.5

3

4

1.1.1.1

255.255.255.255

127.0.0.0

127.0.0.1

XML

M

JSON

HTML

##### ১৩. The only language understood by a digital computer is called

Assembly language

High level language

Binary language

None of the above

FIFO list

LIFO list

Piles

Push-down lists

##### ১৫. Which of the following will produce an answer that is closest in value to a double, d, while not being greater than d?

(int)Math.min(d)

(int)Math.max.(d)

(int)Math.abs(d)

(int)Math.floor(d)

extends

super

this

extent

##### ১৭. Which of the following is the destructor for the class'Vehicle'

*Vehicle()

*Vehicle(int value)

~Vehicle()

~Vehicle(int value)

subclass

super class

static class

implement class

##### ১৯. Which one of these interfaces is implemented by Thread class?

Set

Connections

Runnable

None of the above

array

queue

stack

digital clocks

computers

RAM

none of these

NAND

AND

OR

NOT

queue

stack

array

int length;

char int;

int long;

float double;

##### ২৫. In Java, which operator is used to create an object ---

class

scanf

print

None of the above

++

: :

~

()

Crossover

Straight-through

Rolled

none of these

Netflow

WCCP

IP SLA

SNMP

Key

Determinant

Tuple

Relation

Two

Three

Four

Six

##### ৩১. The SQL statement that queries or reads data from a table is --

SELECT

QUERY

None of the above

1

undefined

-1

while

for

do--while

All of the above

##### ৩৪. An algorithm that calls itself or indirectly is known as --

sub algorithm

Recursion

Polish notation

Traversal algorithm

##### ৩৫. Two main measures for the efficiency of an algorithm are --

processor and memory

Complexity and capacity

Time and space

Data and space

/+*-

*-/+

+-/*

/*+-

1

2

13

##### ৩৮. Which of the following cannot be checked in a switch-case statement?

Character

Integer

Float

None of the above

List

Queue

Factory

All of the above

Cost

Security

Virtualization

All of the above

##### ৪১. Link list can be implemented by using?

Array

Pointers

both a and b

None of the above

Strings

Lists

Queues

All of the above

##### ৪৩. In Java, which one will be used for comparing whether the two String object str1 and str2 are same --

str1==str2

str1,equalslgnore Case(atr2)

str1==str2

All of the above

##### ৪৪. Which data structure allows deleting data elements from front and inserting at rear?

Stacks

Queues

Deques

Binary search tree

RightAns: 0 | WrongAns: 0 | Result: 0/0