Computer Networks (CN) — Computer Science STD 12 Science — Question

Write a script to create an empty list and then
(a) Input 10 numbers from the users and store them in the list using append() method
(b) Find the sum of all the even elements present in the list

Out of the following, which all comes under cyber crime? [Delhi 2015]

(a) Stealing away a brand new computer from a showroom.

(b) Getting in someone’s social networking account without his consent and posting pictures on his behalf to harass him.

(c) Secretly copying files from server of a call center and selling it to the other organization.

(d) Viewing sites on a internet browser.

Write a function update () to update the record in the binary file “employee”, which consist of employee number, employee name and salary. The updation should be done on the basis of employee number entered by the user.

Consider the following table Student & Stream.

Table: Student

Admno	Sname	Class	Sec	Fee	Mobile	Area	S_ID
1001	RAMESH	XII	A	2500	987654321	Madipur	10
1078	KRISHNA	XII	B	2400	999911111	Jawala Heri	30
1006	FARDEEN	XII	C	2600	987654321	Paschim Puri	40
1004	SUBHAM	XII	A	2500	963025874	Madipur	20
1029	KRITIKA	XI	C	2700	987456210	Madipur	30
1008	SAMEEKSHA	XII	A	2450	987123456	Mangol Puri	20
1025	SALMA	XII	B	2580	998877445	Madipur	30
1036	AMANDEEP	XII	B	2600	999333555	Khyala	40
1037	TEJAS	XI	C	2650	987951357	Paschim Puri	40
1029	HIMANSHU	XII	A	2750	951369874	Jawala Heri	10

Table : Stream

S_ID	Stream_name
10	MEDILCAL
20	NON MEDICAL
30	COMMERCE WITH MATH
40	COMMERCE WITH IP
50	HUMANITIES

Write SQL commands for the statements (a) to (h) on the above table: Student and Stream
(a) Identify Primary Keys and Foreign Key in the table student and primary key in Stream table given above.
(b) Display stream id and stream-wise total fee collected.
(c) Count no of students from each area.
(d) Display all the student details those who belongs to Madipur Area.
(e) Increase the fees of all students by10%.
(f) Display unique area from the student table.
(g) Display details of those students whose area contains ‘Puri’.
(h) Display the information of those students who are in class XII and section is either B or C.

What acts comes under cybercrime?

Write function insert() to insert the new row in table emp. The function will take the values as parameter.

Write the function to read the content from the file display the word which are having the length of exactly 4 characters.

Consider the following table Bank.

Table: Bank

AccNo	Cust_name	FD_Amount	Months	Int_Rate	FD_Date
1001	Arti Gupta	30000	36	6.00	2018-07-01
1002	Dilip Lal	50000	48	6.75	2018-03-22
1003	Navin Gupta	30000	36	NULL	2018-03-01
1004	D.P. Yadav	80000	60	8.25	2017-06-12
1005	Jyoti Sharma	20000	36	6.50	2017-01-31
1006	Rakesh Kumar	70000	60	8.25	2018-06-15
1007	K.D. Singh	50000	48	NULL	2018-07-05
1008	Anjali Sharma	60000	48	6.75	2017-04-02
1009	Swati Garg	40000	42	6.50	2018-06-15
1010	Rupinder Kaur	25000	36	6.50	2018-09-27

Write SQL commands for the statements (a) to (g) on the table BANK
(a) Display details of all the FD whose rate of interest is NOT NULL.
(b) Display amounts of various FD from the table Bank. An FD Amount should appear only once.
(c) Display the number of months of various loans from the table Bank. A month should appear only once.
(d) Display the Customer Name and FD Amount for all the Bank which do not have a number of months is 36.
(e) Display the Customer Name and FD Amount for which the FD amount is less than 500000 or int_rate is more than 7.
(f) Display the details of all FD which started in the year 2018.
(g) Display the details of all FD whose FD_Amount is in the range 40000 to 50000.

Based on the following python code, find out the expected correct output(s) from the options (i) to (iv)
import random
lst=["Red","Blue","Green","Yellow"]
for i in range(5,2,-1):
print(lst[random.randint(1,2)],end="%")
(i) Blue%Green%Green%
(ii) Blue%Red%Green%
(iii) Blue%Green%Yellow%
(iv) Blue%Blue%Red%

Write difference between Server Side Script and Client Side Script.