{"id":254,"date":"2020-12-31T19:27:57","date_gmt":"2020-12-31T13:57:57","guid":{"rendered":"https:\/\/cbsepython.in\/?p=254"},"modified":"2022-01-11T23:12:04","modified_gmt":"2022-01-11T17:42:04","slug":"cbse-class-11-computer-science-python-sample-paper-2021","status":"publish","type":"post","link":"https:\/\/cbsepython.in\/cbse-class-11-computer-science-python-sample-paper-2021\/","title":{"rendered":"CBSE Class 11 Computer Science Python Sample Paper 2021"},"content":{"rendered":"

CBSE Class 11 Computer Science Python Sample Paper 2021<\/span><\/h3>\n

Annual Examination (2020-21)<\/span><\/strong><\/em><\/p>\n

Class-11<\/span><\/strong><\/em><\/p>\n

Subject: Computer Science<\/span><\/strong><\/em><\/p>\n

Time allowed: 3:00 hours\/ <\/span>Maximum Marks:70<\/span><\/strong><\/em><\/p>\n

All questions are compulsory.<\/span><\/strong><\/em><\/p>\n

 <\/p>\n

1- Name any two application software. (1)<\/span><\/strong><\/p>\n

 <\/p>\n

2- Differentiate between compiler and interpreter? (2)<\/span><\/strong><\/p>\n

 <\/p>\n

3- What do you understand by RAM and ROM? (1)<\/span><\/strong><\/p>\n

 <\/p>\n

4- Convert the Following as Directed. (2)<\/span><\/strong><\/p>\n

i) (23)10<\/sub>=()2<\/sub><\/span><\/p>\n

ii) (C4)16<\/sub>=()8<\/sub><\/span><\/p>\n

 <\/p>\n

5- Verify the following boolean expression using\u00a0 truth table.(2)<\/span><\/strong><\/p>\n

A+BC=(A+B)(A+C)<\/span><\/p>\n

 <\/p>\n

6- Draw the logic circuit from the following boolean expression.(2)<\/span><\/strong><\/p>\n

AB+A\u2019C<\/span><\/p>\n

 <\/p>\n

7- What do you mean by keyword in python?(1)<\/span><\/strong><\/p>\n

 <\/p>\n

8- What is the purpose of \u2018else\u2019 in a loop? (1)<\/span><\/strong><\/p>\n

 <\/p>\n

9- What is the difference between break and continue statements?(2)<\/span><\/strong><\/p>\n

 <\/p>\n

10- Write logical expression for the following?(2)<\/span><\/strong><\/p>\n

i) Mark is greater than or equal to 100 but less than 70<\/span><\/p>\n

ii) City is either \u2018Kolkata\u2019 or \u2018Mumbai\u2019.<\/span><\/p>\n

 <\/p>\n

11- Find the output for the following:(2)<\/span><\/strong><\/p>\n

x=3<\/span><\/p>\n

if x>2 or x<5 and x==6;<\/span><\/p>\n

print (\u201cOK\u201d)<\/span><\/p>\n

else:<\/span><\/p>\n

print (\u201cNO Output\u201d)<\/span><\/p>\n

 <\/p>\n

12- Find the output for the following:(2)<\/span><\/strong><\/p>\n

x=20<\/span><\/p>\n

x=x+5<\/span><\/p>\n

x=x-10<\/span><\/p>\n

print (x)<\/span><\/p>\n

x, y=x-1,50<\/span><\/p>\n

print (x, y)<\/span><\/p>\n

 <\/p>\n

13- Find the output for the following:(2)<\/span><\/strong><\/p>\n

x, y =2, 6<\/span><\/p>\n

x, y =y, x+2<\/span><\/p>\n

print(x, y)<\/span><\/p>\n

 <\/p>\n

14- The following code is not giving desired output. We want to input value as 20 and obtain output as 40.Identifiy the problem and do the required correction in the code: (2)<\/span><\/strong><\/p>\n

x =input (\u201cEnter number :\u201d)<\/span><\/p>\n

y = x*5<\/span><\/p>\n

print (y)<\/span><\/p>\n

 <\/p>\n

15- Find syntax error(s), if any, in the following code: (2)<\/span><\/strong><\/p>\n

MAX=\u20194\u2019<\/span><\/p>\n

a=int(input\u201dEnter the value of a:\u201d)<\/span><\/p>\n

b= int(input\u201dEnter the value of b:\u201d)<\/span><\/p>\n

if(a>b)<\/span><\/p>\n

MAX=5<\/span><\/p>\n

for x in range(0, MY_MESSAGE):<\/span><\/p>\n

print(\u201c%d\u201d %(x))<\/span><\/p>\n

 <\/p>\n

16- Define operators in python. Explain about relational and logical operators with example.(2)<\/span><\/strong><\/p>\n

 <\/p>\n

17- Write a program to enter the side of a square and print its area.(3)<\/span><\/strong><\/p>\n

 <\/p>\n

18- Write a program to accept a number from the user and print the table of that number.(3)<\/span><\/strong><\/p>\n

 <\/p>\n

19-Convert the following while loop into for loop:(3)<\/span><\/strong><\/p>\n

X=5<\/span><\/p>\n

While (x<10):<\/span><\/p>\n

print (x+10)<\/span><\/p>\n

x+=2<\/span><\/p>\n

 <\/p>\n

20- Identify the valid and invalid identifiers in the following list. (2)<\/span><\/strong><\/p>\n

i) x_y125z<\/span><\/p>\n

ii) _abc@5<\/span><\/p>\n

iii) abc_d53<\/span><\/p>\n

iv) break<\/span><\/p>\n

 <\/p>\n

21- What is flow chart? Draw a flow chart of to calculate sum to two numbers.(2)<\/span><\/strong><\/p>\n

 <\/p>\n

22- Write the equivalent Boolean expression for the following logic circuits. (4)<\/span><\/strong><\/p>\n

i)<\/span><\/p>\n

\"CBSE ii)<\/span><\/p>\n

\"\"<\/span><\/p>\n

 <\/p>\n

 <\/p>\n

23- Define the following terms- (4)<\/span><\/strong><\/p>\n

i) Tuple<\/span><\/p>\n

ii) Degree<\/span><\/p>\n

iii) field<\/span><\/p>\n

iv) primary key<\/span><\/p>\n

 <\/p>\n

24- Answer the question based on the table given below:<\/span><\/strong><\/p>\n

TABLE: Student<\/span><\/strong><\/p>\n\n\n\n\n\n\n\n\n
Column Name<\/span><\/td>\nData Type<\/span><\/td>\nSize<\/span><\/td>\n<\/tr>\n
Roll_No<\/span><\/td>\nINTEGER<\/span><\/td>\n4<\/span><\/td>\n<\/tr>\n
Name<\/span><\/td>\nCHAR<\/span><\/td>\n20<\/span><\/td>\n<\/tr>\n
Stipend<\/span><\/td>\nCHAR<\/span><\/td>\n7<\/span><\/td>\n<\/tr>\n
Stream<\/span><\/td>\nCHAR<\/span><\/td>\n15<\/span><\/td>\n<\/tr>\n
Grade<\/span><\/td>\nCHAR<\/span><\/td>\n1<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

i) Write the SQL command to create the above table.(1)<\/span><\/p>\n

ii) Insert one record with relevant information, in the table student.(1)<\/span><\/p>\n

iii) Display all the records of the table Student.(1)<\/span><\/p>\n

iv) Delete the Student Whose Roll no is 100.(1)<\/span><\/p>\n

v) Change the Stream of Student to \u2018Computer\u2019 Whose Roll no. is 536.(1)<\/span><\/p>\n

vi) Add one column email of data type CHAR and size 30 to the table student.(1)<\/span><\/p>\n

 <\/p>\n

25- Answer the question based on the table given below:<\/span><\/strong><\/p>\n

TABLE: HOSPITAL<\/span><\/strong><\/p>\n\n\n\n\n\n\n\n\n\n\n\n\n\n
No.<\/span><\/td>\nName<\/span><\/td>\nAge<\/span><\/td>\nDepartment<\/span><\/td>\nDateoFadm<\/span><\/td>\nCharges<\/span><\/td>\nSex<\/span><\/td>\n<\/tr>\n
1<\/span><\/td>\nArpit<\/span><\/td>\n62<\/span><\/td>\nSurgery<\/span><\/td>\n21\/01\/98<\/span><\/td>\n300<\/span><\/td>\nM<\/span><\/td>\n<\/tr>\n
2<\/span><\/td>\nZareena<\/span><\/td>\n22<\/span><\/td>\nENT<\/span><\/td>\n12\/12\/97<\/span><\/td>\n250<\/span><\/td>\nF<\/span><\/td>\n<\/tr>\n
3<\/span><\/td>\nKareem<\/span><\/td>\n32<\/span><\/td>\nOrthopedic<\/span><\/td>\n19\/02\/98<\/span><\/td>\n200<\/span><\/td>\nM<\/span><\/td>\n<\/tr>\n
4<\/span><\/td>\nArun<\/span><\/td>\n12<\/span><\/td>\nSurgery<\/span><\/td>\n11\/01\/98<\/span><\/td>\n300<\/span><\/td>\nM<\/span><\/td>\n<\/tr>\n
5<\/span><\/td>\nZubin<\/span><\/td>\n30<\/span><\/td>\nENT<\/span><\/td>\n12\/01\/98<\/span><\/td>\n250<\/span><\/td>\nM<\/span><\/td>\n<\/tr>\n
6<\/span><\/td>\nKetaki<\/span><\/td>\n16<\/span><\/td>\nENT<\/span><\/td>\n24\/02\/98<\/span><\/td>\n250<\/span><\/td>\nF<\/span><\/td>\n<\/tr>\n
7<\/span><\/td>\nAnkita<\/span><\/td>\n29<\/span><\/td>\nCardiology<\/span><\/td>\n20\/02\/98<\/span><\/td>\n800<\/span><\/td>\nF<\/span><\/td>\n<\/tr>\n
8<\/span><\/td>\nZareen<\/span><\/td>\n45<\/span><\/td>\nGynecology<\/span><\/td>\n22\/02\/98<\/span><\/td>\n300<\/span><\/td>\nF<\/span><\/td>\n<\/tr>\n
9<\/span><\/td>\nKush<\/span><\/td>\n19<\/span><\/td>\nCardiology<\/span><\/td>\n13\/01\/98<\/span><\/td>\n800<\/span><\/td>\nM<\/span><\/td>\n<\/tr>\n
10<\/span><\/td>\nShilpa<\/span><\/td>\n23<\/span><\/td>\nNuclear Medicine<\/span><\/td>\n21\/02\/98<\/span><\/td>\n400<\/span><\/td>\nF<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

 <\/p>\n

i) To list the names all the patients admitted after 15\/01\/98.(1)<\/span><\/p>\n

ii) To list the names of female patients who are in ENT department.(1)<\/span><\/p>\n

iii) To list names of all patients with their date of admission in ascending order.(1)<\/span><\/p>\n

iv) To display Patient\u2019s Name, Charges, Age for only female patients.(1)<\/span><\/p>\n

v) Find Out the Output of Following SQL Command:- (1)<\/span><\/p>\n

a) Select COUNT(DISTINCT charges) from HOSPITAL;<\/span><\/p>\n

b) Select MIN(Age) from HOSPITAL where Sex=”F”;<\/span><\/p>\n

 <\/p>\n

26- What are the rules for using social networking sites?(2)<\/span><\/strong><\/p>\n

 <\/p>\n

27- What is hacking? Suggest any two ways to protect the computer from cyber attack.(2)<\/span><\/strong><\/p>\n

 <\/p>\n

28- Define eavesdropping and phishing.(2)<\/span><\/strong><\/p>\n

 <\/p>\n

29- What is cyber trolling? How it is done.(2)<\/span><\/strong><\/p>\n

 <\/p>\n

30- What are the tips to safely browse the internet?(2)<\/span><\/strong><\/p>\n","protected":false},"excerpt":{"rendered":"

CBSE Class 11 Computer Science Python Sample Paper 2021 Annual Examination (2020-21) Class-11 Subject: Computer Science Time allowed: 3:00 hours\/ Maximum Marks:70 All questions are compulsory.   1- Name any two application software. (1)   2- Differentiate between compiler and interpreter? (2)   3- What do you understand by RAM and ROM? (1)   4- […]<\/p>\n","protected":false},"author":3,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[15,20],"tags":[],"class_list":["post-254","post","type-post","status-publish","format-standard","hentry","category-cbse-sample-papers-class-11","category-cbse-computer-science-with-python-class-12"],"_links":{"self":[{"href":"https:\/\/cbsepython.in\/wp-json\/wp\/v2\/posts\/254","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/cbsepython.in\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/cbsepython.in\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/cbsepython.in\/wp-json\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/cbsepython.in\/wp-json\/wp\/v2\/comments?post=254"}],"version-history":[{"count":0,"href":"https:\/\/cbsepython.in\/wp-json\/wp\/v2\/posts\/254\/revisions"}],"wp:attachment":[{"href":"https:\/\/cbsepython.in\/wp-json\/wp\/v2\/media?parent=254"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/cbsepython.in\/wp-json\/wp\/v2\/categories?post=254"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/cbsepython.in\/wp-json\/wp\/v2\/tags?post=254"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}