Computer Operator and Programming Assistant (COPA) IMPORTANT MCQ
Module 10 & 11 : Networking Concepts & Internet Concepts
1 Which layer in OSI model performs network routing, flow control and error control function?
A Network layer
B Session layer
C Physical layer
D Data link layer
2 What is the full form of IP?
A internet protect
B intranet protocol
C internet protocol
D international protocol
3 What is the full form of TCP?
A Test Control Protocol
B Transfer Control Protocol
C Transport Control Protocol
D Transmission Control Protocol
4 Which layer is the layer 2 in OSI network model?
A Session layer
B Physical layer
C Data link layer
D Transport layer
5 Which layer is the layer 4 in OSI model?
A Session layer
B Network layer
C Data link layer
D Transport layer
6 Which is the 6th layer in OSI communication model?
A Session layer
B Network layer
C Application layer
D Presentation layer
7 What is the abbreviation of OSI?
A Open Source Internet
B Open System Interaction
C Open Source Interconnection
D Open System Interconnection
8 What is the full form of EFT?
A Electronic Form Transfer
B Electronic Fund Transfer
C Electronic Field Transfer
D Electronic Format Transfer
9 Which is an example for WAN?
A Ethernet
B Home network
C Campus network
D Bluetooth network
10 What is the full form of ADSL?
A Asymmetrical Digital System Line
B Automatic Digital Subscriber Line
C Asymmetrical Digital Subscriber Line
D Asynchronous Digital Subscriber Line
11 Which is the layer 3 in OSI model?
A Network layer
B Session layer
C Physical layer
D Data link layer
1 Which is a reference tool for understanding data communication between any two network system?
A LAN
B WAN
C ISO model
D OSI model
2 What is called the interconnected computer systems located at different places?
A internet
B computer layout
C computer network
D connectivity of computer
3 Which topology combines characteristics of linear bus and star topologies?
A Bus
B Star
C Tree
D Mesh
4 How many pairs of wires contains in category 5 UTP cable?
A 3
B 4
C 5
D 6
5 What is the maximum speed supported by category 5 UTP cable?
A 1mbps
B 10mbps
C 100mbps
D 1000mbps
6 Which of the following cable transmits messages in the form of light waves?
A STP cable
B UTP cable
C Co-axial cable
D Optical fibre cable
7 Which device is installed in a subscriber’s telephone line to allow both ADSl and regular voice (telephone) services to be used at the same time?
A Hub
B Switch
C MODEM
D Micro filter
8 Which layer of OSI Model, transfer data between network entities?
A Layer 1
B Layer 2
C Layer 3
D Layer 4
9 Which device connects multiple network segments along with the data link layer?
A Hub
B Bridge
C Router
D Switch
10 Which device is used to amplify or regenerate digital signals received while sending them from one port of a network into another?
A Hub
B Bridge
C Switch
D Repeater
11 Which device modulates analog signal to encode digital information and demodulates carrier signal to decode the transmitted information over the telephone network?
A Hub
B Bridge
C Switch
D MODEM
12 Which device is used to connect one network with another network that uses different protocols?
A Hub
B Router
C Switch
D Gateway
13 Which device forwards data packet between computer network?
A Hub
B Router
C Switch
D Gateway
14 What is the speed of standard 10 base T cable?
A 1 mbps
B 10 mbps
C 100 kbps
D 100 mbps
15 Which type of cable is used in 10 base-FL cable standard?
A UTP
B STP
C Co-axial
D Fibre optic
16 What is the speed of 100BASE-TX cable?
A 1 mbps
B 10 mbps
C 100 kbps
D 100 mbps
17 Which is the standard connector for category-5, unshielded twisted pair cabling?
A RJ11
B RJ14
C RJ25
D RJ45
18 How many pairs of wires are there in category 1 UTP cables?
A 1
B 2
C 3
D 4
19 Which is an application layer of internet standard protocol used by local e-mail clients to retrieve e-mail from a remote server over a TCP/IP connection?
A IP
B FTP
C UDP
D POP
1 Which layer in OSI model provides transfer the data between end users?
A Session layer
B Network layer
C Data link layer
D Transport layer
2 What is the purpose of the last three layers in OSI model?
A common application services
B data presentation within the end-user system
C passing traffic through the network to an end system
D manage the dialogue between end user application process
3 Which layers of OSI model is the router operate?
A Layer 2
B Layer 3
C Layer 6
D Layer 7
4 Which layer of OSI network model does repeater works?
A Layer 1
B Layer 2
C Layer 3
D Layer 4
5 Which is a standard network protocol used to transfer files from one host or to another host over a TCP based network, such as the internet?
A FTP
B TCP
C UDP
D SMTP
6 Which is a network protocol used on the internet or LAN to provide a bi-directional interactive text oriented communication facility using a virtual terminal connection?
A FTP
B TCP
C UDP
D Telnet
20 Which function in javassript converts a number to a string?
A Num()
B Str()
C String()
D to string()
21 Which allows developers to bundle all functionality under a unique application -specific name?
A Class
B Name space
C Object
D Property
22 Which is a valid js code to sort element of an array tracle?
A Trade.sort:
B Trade.sort();
C Sort.trade();
D Sort.(trade);
23 What is the full form of BOM?
A Browser Object Method
B Browser Object Model
C Browser Oriented Method
D Browser Oriented Model
24 What is the full form of TOC?
A Text of content
B Time of calculation
C Table of content
D Terminator of content
25 Which is the first phase of System Development Life Cycle?
A Testing
B Planning
C Developing
D Defining
26 What is the abbreviation of W3C in Dom?
A Word Wide Web Curriculum
B World Wide Web Consortium
C World Wide Web Centre
D World Wide Web Content
1 What is the main purpose of JavaScript?
A Client side validation
B Create web browsers
C Read and write files
D Store data in the server
2 Which one is responsible of running javascript code?
A Browser
B Notepad++
C Sublime Text
D Visual studio code
3 Which one enables the hosting providers to mange multiple domains on a single server?
A Network server
B SQL server
C Web server
D Database server
4 Which sign an ‘assignment’ operator in javascript?
A =
B #
C = =
D < >
5 Which data type in javascript returns the value ‘True’ or ‘Flase’?
A Boolean
B Dynamic
C Object
D String
6 Which operator is used to check both value and type in javascript?
A #
B =
C = =
D = = =
7 Which assignment operator is equivalent to a = a * 5?
A a = 5 * 9
B a = * 5
C a * = 5
D a = 5
8 Which single charcter escape sequence represents ‘line feed’’ javascript?
A \ b
B \ f
C \ n
D \ t
9 What is the purpose of Initialisation part in’for’ loop?
A exit the loop
B evaluate the condition
C increase or decrease the initial variable
D Initiate the variable
10 Which keyboard in switch case statement specifies the code to run if there is no case match?
A Break
B Case
C Default
D End
11 Which statement is used to test a block of code for errors?
A Catch
B Finally
C Throe
D Try
12 Which statement is used to handle the error?
A Try
B Catch
C Throw
D Finally
13 Which statement is used create custom error in javascript?
A Catch
B Finally
C Throw
D Try
14 Which statement is used to execute code after try and catch?
A Finally
B Syntax error
C Throw
D Type error
15 Which error indicates that the numbers is outside the range of legal values?
A Range Error
B Reference Error
C Type Error
D URI Error
16 Which error indicates that the variable used is not declared?
A Eval Error
B Range Error
C Reference Error
D Syntax Error
17 Which error indicates that the value is outside the range of expected type?
A Eval Error
B Range Error
C Syntax Error
D Type Error
18 Which is used to acess individual value in an array?
A Content Number
B Element Number
C Table Number
D Variable Number
19 What is the purpose of length property in array?
A Returns number of array element
B Returns number of characters
C Returns number of fields in object array
D Returns number of highest array index
20 Which method joins all array element into string with specified separator?
A Join()
B Pop()
C Push()
D To string()
21 Which method removes the last elements from an array?
A Join()
B Push()
C Pop()
D Shift()
22 Which method is used to add new element to an array?
A Join()
B Push()
C Pop()
D Shift()
23 Which method removes the first array element?
A Join()
B Pop()
C Push()
D Shift()
24 Which variable works as function argument in java script?
A Function variable
B Global variable
C Local variable
D Object variable
25 Which variable declared outside a function in Javascript?
A Function variable
B Global variable
C Local variable
D Object variable
26 Which feature in Javascript has properties and methods?
A Array
B Function
C Object
D Controls
27 Which variable are deleted in JavaScript when the page is closed?
A Function variable
B Global variable
C Local variable
D Object variable
28 Which method is called at the moment of instentiation of an object?
A Constructor
B Inheritance
C Polymorphism
D Property
29 Which is an instance of class?
A Class
B Name space
C Object
D property
30 Which is window method is used to move the current window?
A Move()
B Move to()
C Window move()
D Window.move to()
31 Which is property returns the width of the visitor’s screen in pixels?
A Width()
B Screen width()
C Screen.width()
D Width.screen()
32 Which is property returns the URL of the current page?
A href()
B < herf >
C Location.herf
D herf.location
33 Which property is used to transfer files from one host to another host over internet?
A IP
B FTP
C HTTP
D SMTP
34 Which open source software is used to upload from client to server or download from server to client?
A PHP
B Perl
C HTTP
D FILEZILLA
1 Comment
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