Subjective Question MCQ 251+

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• থার্মিট ওয়েল্ডিং এ AI ও লৌহ অক্সাইডের অনুপাত -
  ক

  1:3

  খ

  2:6

  গ

  3:1

  ঘ

  a and b
• Which of the following is an example of a client server model?
  ক

  TELNET

  খ

  FTP

  গ

  DNS

  ঘ

  All of the above
• Which of the following will produce an answer that is close in value to a double ' d while not being greater than d?
  ক

  9int0 Math.min

  খ

  (int) Math. Max (d)

  গ

  (int) Math abs (d)

  ঘ

  (int)math .floor( d)
• What is the value of 'd after this line of code has been executed? double d= Math. round (2.5 math. random() );
  ক

  2

  খ

  2.5

  গ

  3

  ঘ

  4
• How many '1' will be there in the binary representation of the following expression (assume 16 bit number ) 12+61+128+1024
  ক

  10

  খ

  8

  গ

  6

  ঘ

  9
• Which one is the most suitable for implementing a priority queue ?
  ক

  Dequeue (double ended queue)

  খ

  Heap

  গ

  Queue

  ঘ

  Array
• The following are function of a DBMS except___
  ক

  creating and processting

  খ

  creating databases

  গ

  processing data

  ঘ

  administrating databases
• Using setter and getter method is known as
  ক

  encapsulation

  খ

  polymorpphism

  গ

  inhertance

  ঘ

  recursion
• Which of the following is the destructor for the class Vehicle"
  ক

  *vehicle ()

  খ

  *vehicle (int value)

  গ

  ~ Vehicle ()

  ঘ

  ~ vehicle (intvalue)
• In C++ the idea to doiding the details of how something is implemented id known as____
  ক

  inheritance

  খ

  polymorphism

  গ

  recursion

  ঘ

  encasulation
• Which is not a feature of object oreinted programming?
  ক

  inheritance

  খ

  encapsulation

  গ

  recursion

  ঘ

  abstraction
• How can you avoid DQL Injection?
  ক

  using firewall

  খ

  using virus protection

  গ

  using careful programming

  ঘ

  None of the above
• Which video File format is used for HDTV?
  ক

  AVI

  খ

  MPEG1

  গ

  MPEG2

  ঘ

  MPEG4
• Worst -case of Quicksort algorithm occurs when
  ক

  Data are sorted

  খ

  Data are random

  গ

  Number of items is low

  ঘ

  None of the above
• In Java, which operation is used to create an object?
  ক

  class

  খ

  scanf

  গ

  print

  ঘ

  None of the above
• Which one of these interfaces is implement by Tread class?
  ক

  Set

  খ

  Connection

  গ

  Runnable

  ঘ

  None of the above
• What is not the advantage of IPV6 over IPV4 ?
  ক

  longer address

  খ

  Classification of traffic

  গ

  More real IP adress

  ঘ

  Jumbo Payload
• A class that is inherited in Java is called a
  ক

  subclass

  খ

  super class

  গ

  static class

  ঘ

  implement class
• Fiber optical cable is used for?
  ক

  LAN

  খ

  in an office

  গ

  telephone lines data connectivity amoong the branches of offices

  ঘ

  None of the above
• Bubble sort algorithm sorts n data items using
  ক

  O(n2) comparison

  খ

  O (nn)comparison

  গ

  O (n long n) comparison

  ঘ

  O (n) comparison
• A communication network which is used by large organizations over regional national or global area is called___
  ক

  LAN

  খ

  WAN

  গ

  MAN

  ঘ

  Internet
• Which of the following tags is used to create a paragraph in HTML?
  ক

  "content"

  খ

  "para"

  গ

  "content"
• A network that requires human invention of route signals is called A
  ক

  T-switched network

  খ

  Bus network

  গ

  Ring network

  ঘ

  Star network
• Which of the standard protocol for network managment feature?
  ক

  SNMP

  খ

  SNA

  গ

  FTP

  ঘ

  SMTP
• Which of the following medium is used for broadband local networks?
  ক

  Coaxial

  খ

  Optic fiber

  গ

  CATV

  ঘ

  UTP
• Which of the flowing is not a standard synchronous communication protocol?
  ক

  SDLC

  খ

  PAS

  গ

  SLIP

  ঘ

  SMTP
• A path carrying signals between a source and a destination is known as
  ক

  Pouter

  খ

  Cannel

  গ

  Link

  ঘ

  Block
• Which of the following terms refers to the degree to which data in a database system are accurate and correct/
  ক

  Data integerity

  খ

  Data security

  গ

  Data validity

  ঘ

  None of the above
• In SQL, the ____ command is used to recompile a view
  ক

  COMPILE VIEW

  খ

  DEFINE VIEW

  গ

  AFTER VIEW

  ঘ

  CRFATE VIEW
• Data directory contains details of-
  ক

  Data structure

  খ

  Data flows

  গ

  Data store

  ঘ

  None of the above