Trending ▼   ResFinder  

CBSE Class 12 Pre Board 2019 : Informatics Practices (St Xavier's Sr. Sec. School, Delhi)

5 pages, 64 questions, 0 questions with responses, 0 total responses,    0    0
CBSE 12 Pre Boards
  
+Fave Message
 Home > cbse12_pre_boards >   F Also featured on: School Page cbse12

Formatting page ...

Pre Board Examination 2019 Std. 12 INFORMATICS PRACTICE 17-01-2019 Max. Marks :70 Time : 3 hrs. 1. a) State two advantages of networking computers instead of having standalone computers. b) What was the objective behind developing UNICODE? c) Expand the following terms: i) WAN ii) OSS d) What is the purpose of switch in a network? e) Identify the following devices: i. An intelligent device that connects several nodes to form a network and redirects the received information only to intended node(s). ii. A device that regenerates (amplifies) the received signal and re-transmits it to its destination. f) What is the name of the network topology in which each node is connected independently using a switch? Draw diagram of that topology. [2] g) What is meant by "Denial of Service" with reference to Internet service? [1] [1] [1] [1] [2] [2] 2.a)Rubina, a class XII student has just started learning java programming. Help her in the following: i. Explain her the concept of variable and data type by suitable example. [2] ii. Help her in understanding the difference between logical operator and comparison operator with the help of appropriate example. [2] b)Will the output from the following two code be any different? [2] First Code : int a=2,b=40; do { jTextField1.setText(""+a); a=a+8; } while(b<=a); Second Code: int a=2,b=40; while(b<=a) { jTextField1.setText(""+a); a=a+8; } Give reasons for your answer. OR Predict the output of the following code: int n=5,f=1,i; for(i=1;i<=n;i++) { f=f*i; } jTextField1.setText(""+f); jTextField2.setText(""+i); c)Amit, a website designer with Anshu Designers Pvt. Ltd. has written the following code. Observe the code given below and answer the following questions: [4] <company> <employee eid=1> <name>Albert</name> <deptdeptid= d1 >Computer</dept> </employee> <employee eid=2> <name>Manisha</name> <deptdeptid= d2 >Accounts</dept> </employee> </company>

Formatting page ...

Formatting page ...

Formatting page ...

Formatting page ...

 

  Print intermediate debugging step

Show debugging info


 


Tags : cbse pre boards, prelims 2015 - 2016, preliminary examinations, central board of secondary education, india schools, free question paper with answers, twelfth standard, xiith std, board exams, mock, model, sample, specimen, past, free guess papers.india, delhi, outside delhi, foreign, cbse class xii, cbse 12, 12th standard, cbse papers, cbse sample papers, cbse books, portal for cbse india, cbse question bank, cbse question papers with answers, pre board exam papers, cbse model test papers, solved board question papers of cbse last year, previous years solved question papers, free online cbse solved question paper, cbse syllabus, india cbse board sample questions papers, last 10 years cbse questions papers, cbse important questions, specimen / mock papers.  

© 2010 - 2021 ResPaper. Terms of ServiceContact Us Advertise with us

 

ICSE Q&A - Ask and Answer
cbse12_pre_boards chat