Friday, June 23, 2017

MCQ - NETWORKING AND TELECOMMUNICATION- SEE 2074 [COMPUTER SCIENCE]



1.      Which of the following networking solution is suitable for networking within a building?
i) WAN                        ii) LAN                 iii) MAN              iv) None of above
2.      Which of the following topologies share a single channel on which all stations can receive and transmit the data?
i) LAN                         ii) BUS                 iii) TREE              iv) None of the above
3.      Protocols in network means
i) Language for communication between computer    ii) Rules for exchange of message between two or more hosts
iii) Both i) and ii)                      iv) None of the above
4.      Faster data communication is possible when using
i) Co-axial  cable       ii)  Microwave transmission                          iii) Fiber optic     iv) None of above
5.      A server in LAN is a
i) Device offering service to user                        ii) NIC                 
iii) Workstation with huge secondary storage   iv) None of the above
6.      Which is not a physical component of computer network ?
i) Cable                        ii) NIC                  iii) Network OS                 iv) Hub
7.      Which of the following topologies is least affected by addition/removal of a node?
i) Star                           ii) Ring                 iii) Bus                 iv) None of the above
8.      The device used for connecting PC to telephone line is
i) CD-ROM                 ii) MODEM                        iii) Printer                           iv) Port
9.      Which of the following is used to connect  totally dissimilar networks?
i) Router                      ii) Bridge                            iii) Gateway                       iv) None of the above
10.   Which is not a network device?
Hub                                      Repeater                             switch                                  TCP/IP
11.   Fastest and high bandwidth data communication medium is:
Optical fiber                       Twisted Pair                       Coaxial Cable                    Telephone Line
12.   Which is not the network operating system:
Linux                                   UNIX                                   MS-DOS                             Windows Server 2012
13.   Which transmission media is not used for guided transmission media?
Fiber Optic                                 Coaxial Cable                    RJ45                                    Satellite
14.   Which type of network is used in the internet?
LAN                                    MAN                                   GAN                                    WAN
15.   Which refers to the communication media:
UTP Cable                          Fiber optics cable              Satellite                All of above
16.   Which is not a network topology?
STAR                                   Ring                                     Client Server                      BUS
17.   Which is not a guided media?
UTP Cable                          STP Cable                           Satellite                               Fiber Optics
18.   Modem converts ______________
Sound into digital              Digital signal into sound  Both (i) and (ii)                 None of above
19.   Which is not a communication media?
Wire                                    Microwave                         Satellite                NIC
20.   In which topology network is connected to hub?
Ring Topology                   Bus Topology                    Star Topology                    None
21.   Data communication means:
                           i.          We can easily send and receive the message                           Data computing system is fastest in network
                          ii.          The process of transferring data and information                   None of above
22.   The term network basically refers to:
Communication                                Interconnection                                Sharing                                All of them
23.   Which of the following are network services?
Database services                            LAN services                                    Print services                     Both i and i
24.   Which of the following are is not a goal of computer networks?
Resource sharing                              High reliability                                 Scalability               None of the above
25.   The network architecture used in most home networks is:
Client-server LAN                           Peer-to-peer LAN              Client-server WAN               Peer-to-peer WAN
26.   The maximum speed at which data can be transmitted between two nodes on a network.
Bit rate                                               Bandwidth                          Band length                        None of them
27.   __________ is the main line of defense between a local network or intranet and the Internet.
USB port                             Encryption key                                 Firewall                Decryption key
28.   Which is the network operating system?
MS-DOS                                    Windows 7                                        MS-UNIX                   Windows NT
29.   Microwave and Infrared technology are related with:
Unbounded media             Bounded Media                                Confounded                       Hot Bounded
30.   An example of guided media_______
Radio wave                        Infrared                                              Fiber Optics                       Micro wave
31.   Devices installed on long cable runs to amplify the signal are called:
Repeaters                            Adapters                                            Switches                             Routers
32.   A network navigation device that merely retransmits a signal to all other nodes attached to it:
Router                                 NIC                                                     Hub                                      Adapter
33.   Physical layout of computer:
Network                              Topology                                           LAN                                     MAN
34.   Token passing system is used in _____ topology.
Star                                      Ring                                                    Bus                                      Mesh
35.   Which of the following is protocol?
TCP/IP                                 HTTP                                                  FTP                                      All of them
36.   _______ is the protocol used to send email:
HTTP                                   SMTP                                                 POP                                      FTP
37.   Which one of the device is simplex?
i. Television                ii. Telephone                      iii. Computer                      iv. Walkie-Talkie
38.   The bandwidth of digital signal is measured in­_
i. Hertz                                        ii. Cycle per second          iii. Bits per second            iv. None of the above
39.   Which is not the guided  medium?
i. UTP                                          ii. STP                                  iii. Microwave                   iv. Fiber optic cable
40.   Which is the connector of UTP cable?
i. BNC                                         ii. T-Connector   iii. ST connector iv. RJ-45 connector
41.   Which is the network operating system used in a server computer?
i. Windows XP           ii. Windows Vista              iii. Windows NT server    iv. None of them
42.   A dedicated server that manages printers and printing jobs is_
 Network Server         ii. Printer Server iii. Modem Server             iv. File Server
43.   A networking device that joins multiple networks having different protocols is_
 Switch                         ii. Router                             iii. Gateway                        iv. Bridge
44.   Which is not the network protocol?
 TCP/IP                        ii. STP                                  iii. FTP                 iv. SMTP
45.   A group of computers that functions both as a client and as a server.
                              Centralized computing          ii) Client/server            iii) Peer-to-peer          iv)Local Area Network
46.   A telecommunication network, usually used for connecting computers, that spans a wide   geographical area.
                              i) LAN                                   ii) MAN                   iii) CAN                               iv) WAN
47.   The communication protocol used to connect to web servers on the internet or on a local network (intranet).
                                i) TCP/IP                        ii) HTTP                  i) SMTP                             iv) POP
48.   A form of wireless transmission in which signals are sent via pulses of infrared light.
                             i) Radio networking   ii) Infrared transmission  iii) Microwave transmission  iv) None of the above   
49.   A specialized network device on a host-based network that transmits the data entered by the user to the host for processing and displays the results.
i. Client                         ii. Network Server                           iii. Terminal                       iv. None of the above
50.   A data communications system allowing a number of independent devices to communicate directly with each other, within a moderately sized geographic area.
i.LAN                           ii.WAN                 iii. MAN                                iv.CAN
51.   A topology with a single cable that connects all the workstations, servers, printers and other devices on the network.
i. Ring Topology           ii. Bus Topology                            iii. Star Topology     iv. Mesh Topology
52.   A device that lets you link two networks together.
i. Switch                      ii. Hub                  iii. Router           iv. None of above

53.   Any network device that can connect to the network and can generate ,process or transfer network data.
i) Node                                       ii) Client                                            iii) Peer
54.   A network interface card is the card that physically makes the connection between the computer
and the network cable.
i) Network cables                     ii) Network connector              iii) NIC
55.   A centralized computing network is a type of network where  all the users connect to a host computer that is the acting agent for all communication.
i) Peer-to peer                           ii) Client/server                  iii) None of the above
56.   A network of computer spread over a city or town located in the same geographical area.
i) LAN                                        ii) MAN                              iii) WAN
57.   A device that converts the discrete stream of digital ON-OFF electric pulses used by computer into the continuously variable analog wave patterns used to transmit the human voice over many existing telephone lines.
i) Modem                                   ii) Bridge                                           iii) Gateway
58.   Which of the following acts as the central authority in the network?
protocol    ii.client                            iii.server     iv.none of the above
59.   which of the following is not Media connector?
BNC             ii. terminator    iii.RJ-45            iv.NIC
60.   In which of the following network model all the computers have equal access?
i. Peer-to-peer network              ii. apple talk network
iii. Client/server network            iv. None of the above
61.   Which is an internetworking device that connects two dissimilar networks?
Bridge          ii. Gateway   iii. Switch          iv. Router
62.   Which of the following device is multi ports repeater?
Hub              ii. router         iii. bridge          iv. gateway
63.   Which of the following is not a protocol?
TCP/IP        ii.IPX/SPX      iii.NETBIOS/NETBUI        iv. Client
64.   Which of the following is not the network operating system?
windows        ii.MS-DOS    iii. Linux            iv. None of the above
65.   The speed of Modems is measured in terms of
mbps                 ii.bps         iii. kbps                 iv. bits
66.   Which of the following is not guided communication media?
radio wave        ii. fiber optic cable    iii.satellite          iv.Infrared
67.   Which of the               following topology uses hub as compulsory device
star topology   ii. Bus topology      iii. Ring topology            iv. None of the above
68.   Which is not network hardware component?
HUB           ii. Repeater  iii. Router            iv. Windows NT
69.   In which communication media does light travel in the form of light signal?
Telephone wire     ii. Fiber optic    iii. Coaxial cable             iv. Twisted pair cable
70.   Which is not a network protocol?
i. TCP/IP      ii. HTTP      iii. LAN      iv. FTP
71.   Which is not a network operating system?
i. MSDOS    ii. Windows NT   iii. Windows 2000   iv. None of them
72.   Which is the component of a network?
i. MSDOS      ii. Hub      iii. Volt guard      iv. None of them
73.   Which is the connector of coaxial cable.
i. RJ 45      ii. BNC      iii. ST      iv. None of them
74.   An example of guided media
i. Radio wave   ii. Infrared   iii. Fiber-optics   iv. Micro Wave
75.   Which is an appropriate network within a building?
i. WAN      ii. MAN      iii. LAN      iv. All of them
76.   The device used for connecting computer to a telephone line is called.
i.  Modem      ii. NIC      iii. Router      iv. Bridge
77.   Which one is used to connect the dissimilar networks?
i. Router      ii. Bridge      iii. Gateway      iv. All of them

78.   An example of unguided communication media
i. Radio Frequency   ii. Microwave   iii. Both of them   iv. None of them
79.   TV broadcasting is an example for data transmitting
i. Half-duplex Mode   ii. Simplex Mode   iii. Full duplex mode   iv. None of them
80.   A _______ is a self-sufficient computer that acts both as a server and a client to other similar computers on the network.
i. Node          ii. Client                              iii. Peer
81.   The communication protocol usedto connect to web servers on the internet or on a local network(intranet).
i. TCP/IP       ii. HTTP                              iii. Apple Talk
82.   A network in which a central host computer performs data processing and storage on behalf of clients.
i. Centralized computing network                        ii. Client/Server network  iii. Peer-to-peer network
83.   A network of computers spread over a city or town located in the same geographical area.
i. Local Area Network               ii. Metropolitan Area Network       iii. Wide Area Network
84.   A form of wireless transmission in which signals are sent via pulses of infrared light.
i. Radio networking   ii. Infrared transmission                                iii. Microwave transmission
85.   Which refers to the communication media?
i. UTP cable                ii. Fiber optic cable                          iii. Radio wave    iv. All
86.   Which is Network operating system(NOS)?
i. Linux                        ii. Windows XP                                 iii. MS-DOS         iv. All
87.   Which refers to the communication media?
i) UTP cable                ii) Fiber optic cable          iii) Satellite         iv) All of the above
88.   Which one is not a network topology?
i) Star                           ii) Ring                 iii) Client Server                iv) Bus
89.   In which topology network devices are connected through hub?
i) Ring topology         ii) Bus topology                 iii) Star topology                              iv) None of the above
90.   Which of the following is not a protocol?
i) POP           ii) TCP/IP             iii) NOS                iv) FTP
91.   In which communication media data transfer high?
i) Twisted pair            ii) Co-axial cable              iii) Fiber optics   iv) Microwave
92.    Which is not unguided media?
i) Fiber optics             ii) Microwave     iii) Infrared          iv) Radio wave
93.   Which one is bounded media?
i) Fibre optics             ii) Microwave     iii) Infrared          iv)Laser
94.   Which one is an operating system software?
i) MS-Word ii) MS-Excel        iii) Firefox           iv) MS-DOS
95.   Which is NOT a guided media?
i) UTP Cable               ii) STP Cable       iii) Satellite         iv) Fiber Optics
96.   Which one is an example of bounded media?
i) Fiber optics             ii) Microwave transmission            iii)Laser transmission       iv) infrared transmission
97.   Which of the following is not a guided data communication media?
i) Coaxial cable          ii) Fiber optic      iii) twisted pair   iv) Satellite
98.   Each computer on the Internet has a unique numeric address called a/an ….
i) Web address           ii) Domain address            iii) Network binding         iv) IP address
99.   Media used to transfer data in forms of light?
i. Microwave   ii. Fiber optical   iii. Radio wave   iv. Satellite
100.           Which is not a communication media?
i) Wire                         ii) Microwave                    iii) Satellite                        iv) NIC


Sunday, May 28, 2017

Computer Networking and Telecommunciation - Questions, Technical terms, True/False - Objectives Questions


          Questions
a)      Define LAN topology. Draw star topology. [SLC 2064, 2072, 2067, 2065 S , 2068 S, SLC 2069 S]
b)     Give the importance of modem in the computer network. [SLC 2064]
c)      What is computer network? [SLC 2066, 2068 S, 2069 S, 2070 S]
d)     Write any two examples of data communication. [SLC 2067]
e)      Write any two types of LAN topology.[SLC 2068]
f)      Write any four advantages of computer network. [SLC 2069, SLC 2065 S]
g)     What is network topology? Write any one advantage of star topology.[SLC 2070, 2065 S, 2066 S]
h)     Give two-two difference between peer-to-peer and client/server network architecture. [SLC 2071]
i)       What is bandwidth? [SLC 2066 S]
j)       Draw the Bus topology. [SLC 2067 S, 2069 S]
k)     Write any two reasons for computer network. [2070 S]
l)       What is communication channel? [SLC 2072] 
Write the full form of the following.
a) WAN [SLC 2064, SLC 2067 S]
b) Bits [SLC 2064]
c) NIC [SLC 2064, SLC 2065, SLC 2065 S, SLC 2067 S, SLC 2069 S]
d) TCP [SLC 2065]
e) STP [SLC 2065]
f) MAN [SLC 2066, SLC 2068, SLC 2069, 2068 S]
g) OS [SLC 2066]
h) bps [SLC 2067, SLC 2068, SLC 2068 S]
i) URL [SLC 2068, SLC 2072, SLC 2068 S]
j) UTP [SLC 2069, 2066 S, SLC 2070 S]
k) TCP/IP [SLC 2070]
l) LAN [SLC 2070, SLC 2071, SLC 2072, SLC 2069 S]
m) Gpbs [SLC 2071]
n) Kbps [SLC 2065 S]
o) MODEM [SLC 2065 S, SLC 2072]
p) NOS [SLC 2066 S, SLC 2069 S]

5. Give technical terms
a) A device used at end user’s computer in a network which converts digital signal into analog and vice-versa. [SLC 2064, 2067 S]
b) A computer network limited within a room. [SLC 2065]
c) Rules and format to accept and transfer data in the computer network.[ SLC 2066]
d) A set of rules that governs how computer exchange information over computer network. [SLC 2067]
e) The device used to connect PC with telephone line. [SLC 2068]
f) The rules that make the network communication possible. [SLC 2068]
g) A main computer in the computer network. [SLC 2068]
h) Physical layout of LAN. [SLC 2069]
i) A computer in a network which can provide services to other computer. [SLC 2070]
j) The data carrying capacity of communication channel. [SLC 2071]
k) The rules and regulations to systematize the computer related  technology. [SLC 2065 S]
l) A computer which provides services to other computers in a network. [SLC 2072]
m) A card used to connect network cable to computer. [SLC 2066 S]
n) The data carrying capacity of communication channel. [SLC 2068 S]
o) Hub or switch based network topology. [SLC 2068 S]
p) Network sharing and exchanging information between different people. [SLC 2070 S]
           q) A set of rules and procedures that govern transmission of messages. [SLC 2070 S]

6. State whether the statements are True or False
a) Walky-talky is an example of full duplex mode. [SLC 2072]
b)  Data transfer rate is higher in optical fiber cable than in co-axial cable. [SLC 2072]
c) MODEM is necessary to access the internet [SLC 2065 S]
d) Fiber optics use light to carry a data signal through cable. [SLC 2065 S]

MCQ Question - Computer Networking and Telecommunication



Select the best answer
a)      Which refers to the communication media? [SLC 2064]
i. UTP cable      ii. Fiber optic cable        iii. Radio wave  iv. All
b) Which is Network operating system(NOS)? [SLC 2064]
i. Linux            ii. Windows XP             iii. MS-DOS     iv. All
c) Which refers to the communication media? [SLC 2065]
i) UTP cable     ii) Fiber optic cable       iii) Satellite       iv) All of the above
d) Which one is not a network topology? [SLC 2066]
i) Star               ii) Ring             iii) Client Server                        iv) Bus
e) Which is not a communication media? [SLC 2067]
i) Wire              ii) Microwave               iii) Satellite                   iv) NIC
f) In which topology network devices are connected through hub? [SLC 2067]
i) Ring topology            ii) Bus topology            iii) Star topology           iv) None of the above
g) Which of the following is not a protocol? [SLC 2068]
i) POP ii) TCP/IP         iii) NOS                        iv) FTP
h) In which communication media data transfer high? [SLC 2068]
i) Twisted pair   ii) Co-axial cable           iii) Fiber optics              iv) Microwave
i) Which is not unguided media? [SLC 2069]
i) Fiber optics    ii) Microwave   iii) Infrared       iv) Radio wave
j) Which one is bounded media? [SLC 2070]
i) Fibre optics    ii) Microwave   iii) Infrared       iv)Laser
k) Which one is an operating system software? [SLC 2070]
i) MS-Word      ii) MS-Excel     iii) Firefox        iv) MS-DOS
l) Which is NOT a guided media? [SLC 2066 S]
i) UTP Cable     ii) STP Cable    iii) Satellite       iv) Fiber Optics
m)Modem converts [SLC 2066 S]
i) Sound into digital       ii) Digital into sound      iii) Both i) and ii)          iv) None
o) Which one is an example of bounded media? [SLC 2067 S]
i) Fiber optics    ii) Microwave transmission        iii)Laser transmission     iv) infrared transmission
            p) Which of the following is not a guided data communication media? [SLC 2068 S]
i) Coaxial cable             ii) Fiber optic    iii) twisted pair              iv) Satellite
q) Which of the following network connects computer to the Internet? [SLC 2069 S]
i) Intranet                      ii) LAN            iii) WAN                      iv) MAN
q) Media used to transfer data in forms of light? [SLC 2070 S]
                       i. Microwave   ii. Fiber optical   iii. Radio wave   iv. Satellite

Monday, May 8, 2017

QBASIC PROGRAM to display count frequency of each letter in word as letter given in word.

QBASIC PROGRAM to display count frequency of each letter in word  as letter given in word. 
 For example if my input word is:bbinood then output should be :b2i1n1o2d1
CLS
INPUT "ENTER A WORD"; W$
W$ = LCASE$(W$)
T$ = ""
C = 0
DO
    D$ = MID$(W$, 1, 1)
    FOR I = 1 TO LEN(W$)
        IF D$ = MID$(W$, I, 1) THEN
            C = C + 1
        ELSE
            T$ = T$ + MID$(W$, I, 1)
        END IF
    NEXT I
    PRINT D$; "="; C
    C = 0
    W$ = T$
    T$ = ""
LOOP UNTIL LEN(W$) = 0
END


Solved By: Sarika Shrestha