QUESTIONS: CHAPTER1,2,3
Q1) Which communication channel(s) is/are suitable in each of the
following situations:
a. Setting up a LAN
b. Transfer of data from a laptop to a mobile phone.
c. Transfer of data from one mobile phone to another.
Q2) Why a switch is called an intelligent
hub?
Q3) What is Ogg Vorbis?
Q4) Distinguish between :Open
Source Software and Propriety Software
Q5)Fill in the blanks:
(a)
……………………….refers
to unauthorized access of someone else’s data, email, Computer-activity or data
communication.
(b)
A system designed
to prevent unauthorized access to or
from a private network is called…………………………..
Q7) Beauty Lines Fashion Inc.
is a fashion company with design unit 135 meters away from each other. The
company recently connected their LANs using Ethernet cable to share the stock
related information. But after joining their LANs they are not able to share
the information due to loss of signal in between. You Suggest the Device to be
installed for smooth communication.
Q8) Grijesh is confused about Wi-Fi. Whether it is a
(i) Type of network cable
(ii) Set of popular technologies and standards for wireless
computer networking.
(iii) Set of computer programs that help people log in to the
Internet.
Q9) Identify the types of topology from the following:
(i) In which each device with a point-to-point connection to every
other device
in the network.
(ii) In which there are bi-directional links between each possible
node.
Q10) Bholu is confused as he is unable to find the name of a
network of computers and
other devices that is confined to a relatively small space- an
office. Help him do that.
Q11Name an open standard for Office document.
Q12) It is a technology on
computer networks whose purpose is to prevent unwanted networking connection
according to some filtering/blocking rules. What is it?
Q13) Name the protocols used for sending &
receiving mails.
Q14) Name two encodings used for Indian language
computing.
Q15) Write the full forms of
the following : (0.5
x 4=2)
a). OSS b). GNU c). W3C d). FOSS
a). OSS b). GNU c). W3C d). FOSS
Q16)
Given the following MAC address:
00.A0.C9.14.C8.29
Q17)
Tarini Fancy Inc. is planning in the Office Building to connect all computers,
each spread over within distance of 50 Meters. Suggest the economical cable
type having high speed data transfer which can be used to connect these
computers.
a) Explain its parts (2)
b) Name the device links two
networks with different protocols and it uses logical address. (1)
c) Mr. Jayanto Das is confused
between Shareware and Open source software. Mention at least two points of
difference to help him understand the same.
(2)
Q18)
Arrange the following communication channels in ascending order of their data
transmission rates.
ETHERNET
CABLE, OPTICAL FIBER, TELEPHONE CABLE, COAXIAL CABLE.
Q19) Sujata says that the following numbers indicate an
address:
208.77.188.166 What is the above address called? To which
object/device is it assigned?
Q20) Name these:
(i)It is a software package
that allows people to send electronic mail along a network of computers and
workstation ?
(ii)It is a network topology
in which there are bi-directional links between each possible node ?
Q21) Which communication channel(s)
is/are suitable in each of the following situations:
a. Creating a remote control that
can control multiple devices in a home.
b. Very fast communication between
two offices in two different countries.
c. Communication in a hilly area
d. Communication within a city and
its vicinity where cost of cabling is too high.
Q22)What
do you mean by Denial of Service attacks?
Q23) Tara
Nathani wants to upload and download files from/to a remote Internet
server,write the name of the relevant communication protocol, which will let
her do thesame.
Q24)Jai Khanna is confused between
the terms Domain Name and URL. Explain the difference with the help of
appropriate examples of each.
Q25)Identify the types of topology
from the following:
(i) In which each device with a
point-to-point connection to every other device in the network.
(ii) In which there are
bi-directional links between each possible node.
Q27) Jayanto Das is confused
between Shareware and OSS. Mention at least two points
of differences to understand the same.
Q28) Which transmission media should be used to transfer
data across two continents at very high speed?
Q29) It is a technology on computer networks whose purpose
is to prevent unwanted networking connection according to some
filtering/blocking rules. What is it?
Q30) Name two encodings used for Indian language computing
Q31) ABC SWITCHGEARS Ltd in
Srinagar is setting up the network between its different departments located in
different withgs. There are 4 wings named as Manufacturing (M), Research ( R),
Administration (A) and Personnel (P).
Number of
Computers
|
Distance
between various wings are given below
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i.
Suggest a suitable
Topology for networking the computers of all wings (1)
ii.
Name the wing where the
Server is to be installed. Justify your answer. (1)
iii.
Suggest the placement of
Hub/Switch in the network. (1)
iv.
Mention and economic
technology to provide Internet accessibility to all wings. (1)
Q32)
Which of the following softwares are open source: (1) LINUX, MS WINDOWS 7,
PHOTOSHOP, MYSQL
Q33) What is snooping and phishing
Q34) What are the common threats to Network
Security?
Q35) Differentiate between Phonetic
Text Entry and Key map based Entry of Indian language text.
Q36) Answer
the following questions:-
|
a) A variable amount has a value 25365. Write the statement to
display the value in a Label control named lblAmount.
b)
Predict output:
int t=5,p;
do
{ int r=(t%2==0)?1:0;
if(r==1)
System.out.println(t+r);
else
System.out.print(t+r);
}while(++t<10);
|
Q37) Rewrite the following code using if ..else.
switch(ch)
{
case ‘a’:
case ‘A’:
case ‘e’:
case ‘E’:
case ‘i’:
case ‘I’:
case ‘o’:
case ‘O’:
case ‘u’:
case ‘U’: ++v;
break;
default: others++;
}
Q38)Write a program to input any number and print them in
reverse order using while statement. Where as the input number must be
positive. The following is the screen used to print the reverse of a number.
Q39) What's wrong with the while statement?
while( (ctr < 5) && (ctr > 30))
a the logical operator && cannot be used in a test
condition.
b the while loop is an exit-condition loop.
c the test condition is always false.
d the test condition is always true.
Q40) What will be the value of x,y after execution.
Int x,y;
a)for(int x=0;x<10;x++)
y=x+++++x;
y++;
b)int i,j;
for(i=0;i<8;i=i+2)
for(j=0;j<i;j++)
System.out.println(“Hello”);
Q41)Manager of Bachat Bank has developed a java form for finding
EMI to be paid by customers against repayment of loan.
Loan interest rates are(Yearly) -
Loan Type Interest Rate
Car Loan.
14.5 %
Personal Loan
13.25 %
Education Loan
11.75 %
a) Initially loan type should be set to Car Loan, jtxtRate should
be disabled and jcmbYears should have values 5,10,15, and 20.
|
(2)
|
b) If loan amount is less than or equal to 0. It should display an
error message “Invalid Amount” and cursor should point to jtxtLoanAmt.
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(2)
|
c) When the user clicks the CmdCalcEMI button, the total
payable EMI should be calculated and displayed in the jtxtEMI text box. To calculate EMI, firstly calculate compound
interest using formula ci=p*(1+r/100)^t. Add compound interest to loan
amount and divide by time (in months).
|
(4)
|
d) Write the code for jCmdExit button to stop the application and jCmdClear command button to clear
all the text boxes, option buttons. Also cursor should point on jtxtLoanAmt test box.
|
(2)
|
Q42)How many times the following loop will eb executed?
int m=10,n=7;
while(m%n>=0)
{
m=m+1;
n=n+2;
}
Q43) K.K.Group of hotels has
computerized it booking system. The following is the Booking From along with
details: (You can assume various names for various controls of the form).
i) When the form loads text boxes for Room charges, fooding
charges, discount and total are disabled. 1
ii) Write the code for exit button so that when a user clicks on
exit button Application
will be closed. Also display a message “Thank you for your nice
visit” before exiting the application. 2
iii) When the command button Calculate Charges is clicked all the
charges along with discount & Total computed and displayed. 2
Then criterion for the calculation of charges is given below:
Total = (Room charges + fooding charges - discount)
Single Room:- Rs.400 per day Double Room :- Rs.700 per day
Breakfast:- Rs.100 per day Lunch: Rs.180 per day Dinner: Rs.200
per Day
Gold card
member will be given 20% discount on total charges
