Functions — Computer Science STD 12 Science — Question

Write two advantages of using an optical fiber cable over an Ethernet cable to connect two service stations, which are 190m away from each other.

Observe the following tables VIDEO and MEMBER carefully and write the name of the RDBMS operation out of (i) SELECTION (ii) PROJECTION (iii) UNION (iv) CARTESIAN PRODUCT, which has been used to produce the output FINAL RESULT as shown below, Also, find the Degree and Cardinality of the final result.

Write the Law related to Identity theft in India.

Write a python program to accept a line from the user and store that in a file “story.txt”. 

Write the python program using writelines() function to store the following data:

[Filename: ch4/ch-4_Q10]

What, out of the following, will you use to have an audio-visual chat with an expert sitting in a faraway place to fix-up a technical issue? [Delhi 2012]

Write the output of the given program:

Find the output

Consider the table: CLUB as given below:

Table: CLUB

MEMBER_ID	MEMBER_NAME	ADDRESS	AGE	FEE
M002	NISHA	GURGAON	19	3500
M003	NIHARIKA	NEW DELHI	21	2100
M004	SACHIN	FARIDABAD	18	3500

(a) What is the cardinality and degree of the above given table?

(b) If a new column contact_no has been added and three more members have joined the club then how these changes will affect the degree and cardinality of the above given table.

Name two threats to security in a network . What is the role of Firewall in Network security?