Downloaded from

Size: px

Start display at page:

Download "Downloaded from"

Margery O’Connor’
6 years ago
Views:

1 D.A.V. PUBLIC SCHOOL, NEW PANVEL Plot No. 267, 268, Sector-10, New Panvel, Navi Mumbai (Maharashtra). Phone , , Telefax I TERM EXAMINATION SUB: - INFORMATICS PRACTICES Std:- XII Time:- 3 Hours Marks: NOTE (i) All questions are compulsory. (ii) Section A consists of 30 marks. (iii) Section B and Section C are of 20 marks each. (iv) Answer the questions after carefully reading the text. SECTION A Q1: Answer the following questions. (5X2=10M) a. What is a modem? What is its function? b. What do you understand by firewall? c. When would you prefer Switch over a hub? d. What do you understand by Domain Name Resolution? e. What is Snooping? Q2: Answer the following questions. (5X2=10M) a. What is eavesdropping? b. Write two advantages and disadvantages of the following : i) Optical fibers. ii) Satellites. iii) Microwaves. c. Describe the terms free software and open source software. d. What are different types of standards? e. What do you understand by ODF? Q3: Answer the following questions. (5x2=10M) a. What do you understand by TTF and OTF?

2 b. Name two encodings used for Indian language computing. c. Define freeware and shareware. d. In how many different ways can you type Indian Script on a computer? e. Write short notes on : i) GNU (ii) Linux (iii) Mozilla. iv) Apache (v) Python (vi) OSI. SECTION B Q4: Answer the following questions. (5x4=20M) a. Knowledge Supplement Organization has set up its new center at Mangalore for the office and web based activities.it has four buildings as shown in the figure below: Sales office New Delhi Head office Tech office Ahmedabad office Coimbatore Office Kolkata Office Approximate distances between these offices as per network survey team is as follows: Place from Place to Distance Head office Sales office 10 KM Head office Tech office 70 Meter Head office Kolkata office 1291 KM Head office Ahmedabad office 790 KM Head office Coimbatore office 1952 KM

3 In continuation of the above, the company experts have planned to install the following number of computers in each of their offices : Head office 100 Sales office 20 Tech office 50 Kolkata office 50 Ahmedabad office 50 Coimbatore office 50 a) Suggest network type (out of LAN, MAN, WAN ) for connecting each of the following set of their offices : 1. Head office and tech office 2. Head office and Coimbatore office. b) Which device will you suggest to be procured by the company for connecting all the computers within each of their offices out of the following devices? 1. Modem. 2. Telephone. 3. Hub/switch. c)which of the following communication media, will you suggest to be procured by the company for connecting the company s local offices located in New Delhi. Also suggest an effective method /technology for connecting the company s regional offices at Kolkata, Coimbatore and Ahmedabad. b. Write code to translate to its equivalent name of the day of week. (e.g, 1 to Sunday, 2 to Monday,, 7 to Saturday. c. Write a program to print the following d. Give the output of the following code : Int m=100; While (m>0) { If (m<10) Break ;

4 M=m-10; } e. Write the code to display the following : (a) 1 (b) (c) (d) 4 (e) SECTION C Q5: Answer the following questions. (5x2=10M) a. Create an application in which you have to generate the salary slip in which TA 45% DA 40% HRA 50% PF 35% MEDICAL 500/ Rs. BONUS 50% b. Create a GUI form as shown in the fig.

c. Create an application to generate marklist and also find average, percentage total and grade of five students. d. What is wrong with the following while loop?

5 c. Create an application to generate marklist and also find average, percentage total and grade of five students. d. What is wrong with the following while loop? Int ctr = 1; While (ctr < 100) { System.out.println (ctr); Ctr.; } e. What will be the output of the following code: Int I,j; For (I = 4 ; i>=1; I --) { For (j = 4 ; j >= I ; j --) System.out.print( + j) ; System.out.println () ; }

6 Q6: Answer the following questions. (4x2½=10M) a. Give the coding for giving the heading PACE Computer Education of <H1> tag, font style as Comic Sans MS, text color as blue. Body text color as red, background as green, alignment as center, font style of body text as Brush Script, size=15. The text for the body is as follows. Education is the Ability to listen to almost Anything without Losing temper Or your Self confidence. b. Differentiate between <TITLE> and <HEAD> tag with the help of example. c. What is the difference between <BASEFONT> and <FONT> tags? d. Write a complete HTML Web page with the title Foo Fun and a heading at the top which reads Happy Hour at the Foo Fun, followed by the words Come on down! in regular type.

Summer Holiday Home Work Informatics Practices Class 12 th

Summer Holiday Home Work Informatics Practices Class 12 th COMUTER NETWORKING Very Short Answer Questions 1. Define a network. 2. Write two advantages of networks. 3. Write two disadvantages of networks.