Observe the following table and answer the parts(i) and(ii) accordingly
Table:Product

(i) Write the names of most appropriate columns, which can be considered as candidate keys.
(ii) What is the degree and cardinality of the above table?

Write SQL queries for (i) to (iv) and find outputs for SQL queries (v) to (viii), which are based on the tables.
TRAINER

COURSE

(i) Display the Trainer Name, City & Salary in descending order of their Hiredate.

(ii) To display the TNAME and CITY of Trainer who joined the Institute in the month of December 2001.

(iii) To display TNAME, HIREDATE, CNAME, STARTDATE from tables TRAINER and COURSE of all those courses whose FEES is less than or equal to 10000.

(iv) To display number of Trainers from each city.

(v) SELECT TID, TNAME, FROM TRAINER WHERE CITY NOT IN(‘DELHI’, ‘MUMBAI’);

(vi) SELECT DISTINCT TID FROM COURSE;

(vii) SELECT TID, COUNT(*), MIN(FEES) FROM COURSE GROUP BY TID HAVING COUNT(*)>1;

(viii) SELECT COUNT(*), SUM(FEES) FROM COURSE WHERE STARTDATE< ‘2018-09-15’;

State any one Distributive Law of Boolean Algebra and Verify it using truth table.

Draw the Logic Circuit of the following Boolean Expression:
((U + V’).(U + W)). (V + W’)

Derive a Canonical SOP expression for a Boolean function F(X,Y,Z) represented by the following truth table:

Reduce the following Boolean Expression to its simplest form using K-Map:
F(X,Y,Z,W)= Σ (0,1,2,3,4,5,8,10,11,14)

Arun opened his e-mail and found that his inbox was full of hundreds of unwanted mails. It took him around two hours to delete these unwanted mails and find the relevant ones in his inbox. What may be the cause of his receiving so many unsolicited mails? What can Arun do to prevent this happening in future?

Assume that 50 employees are working in an organization. Each employee has been allotted a separate workstation to work. In this way, all computers are connected through the server and all these workstations are distributed over two floors. In each floor, all the computers are connected to a switch. Identify the type of network?

Your friend wishes to install a wireless network in his office. Explain him the difference between guided and unguided media.

Write the expanded names for the following abbreviated terms used in Networkingand Communications:
(i) CDMA (ii) HTTP (iii) XML (iv) URL

Multipurpose Public School, Bangluru is Setting up the network between its Different Wings of school campus. There are 4 wings
namedasSENIOR(S),JUNIOR(J),ADMIN(A)andHOSTEL(H).
Multipurpose Public School, Bangluru

Distance between various wings are given below:

Number of Computers installed at various wings are as follows:

(i)Suggest the best wired medium and draw the cable layout to efficiently connect various wings of Multipurpose PublicSchool, Bangluru.

(ii) Name the most suitable wing where the Server should be installed. Justify your answer.

(iii) Suggest a device/software and its placement that would provide data security for the entire network of the School.

(iv) Suggest a device and the protocol that shall be needed to provide wireless Internet access to all smartphone/laptop users in the campus of Multipurpose Public School, Bangluru.

Differentiate between DDL & DMLcommands. Identify DDL & DML commands from the following:-
(UPDATE, SELECT, ALTER, DROP)

Consider the following relations MobileMaster & MobileStock:-

MobileMaster

MobileStock

MobileMaster

Write the SQL query for questions from (i) to (iv) & write the output of SQL command for questions from (v) to (viii) given below:-
(i) Display the Mobile company, Mobile name & price in descending order of their manufacturing date.
(ii) List the details of mobile whose name starts with „S..
(iii) Display the Mobile supplier & quantity of all mobiles except „MB003..
(iv) To display the name of mobile company having price between 3000 & 5000.
(v) SELECT M_Id, SUM(M_Qty) FROM MobileStock GROUP BY M_Id;
(vi) SELECT MAX(M_Mf_Date), MIN(M_Mf_Date) FROM MobileMaster;
(vii) SELECT M1.M_Id, M1.M_Name, M2.M_Qty, M2.M_Supplier FROM MobileMaster M1, MobileStock M2 WHERE M1.M_Id=M2.M_Id AND M2.M_Qty>=300;
(viii) SELECT AVG(M_Price) FROM MobileMaster;

State & prove De-Morgan‟s law using truth table.

Draw the equivalent logic circuit diagram of the following Boolean expression:-
(A‟ + B).C’

Write the SOP form for the Boolean Function F(X,Y,Z) represented by the given truth table:-

Reduce the following Boolean expression using K-Map:-
F(U,V,W,Z)= ð(0,2,5,7,12,13,15)

A teacher provides “http://www.XtSchool.com/default.aspx” to his/her students to identify the URL & domain name.

Which out of the following does not come under Cyber Crime?
(i) Copying data from the social networking account of a person without his/her information & consent.
(ii) Deleting some files, images, videos, etc. from a friend‟s computer with his consent.
(iii) Viewing & transferring funds digitally from a person‟s bank account without his/her knowledge.
(iv) Intentionally making a false account on the name of a celebrity on a social networking site.

Expand the following:-
1. GSM 2. TDMA

What is the significance of cookies stored on a computer?

Kabir wants to purchase a Book online and placed the order for that book using an e-commerce website. Now, he is going to pay the amount for that book online using his Mobile, he needs which of the following to complete the online transaction:-
1. A bank account,
2. A Mobile connection/phone which is attached to above bank account,
3. The mobile banking app of the above bank installed on that mobile,
4. Login credentials(UserId & Password) provided by the bank,
5. All of above.

What do you mean by data encryption? For what purpose it is used for?

Sanskar University of Himachal Pradesh is setting up a secured network for its campus at Himachal Pradesh for operating their day-to-day office & web based activities. They are planning to have network connectivity between four buildings. Answer the question (i) to (iv) after going through the building positions in the campus & other details which are given below:

The distances between various buildings of university are given as:-

Number of computers:-

As a network expert, you are required to give best possible solutions for the given queries of the university administration:-
(a) Suggest cable layout for the connections between the various buildings,
(b) Suggest the most suitable building to house the server of the network of the university,
(c) Suggest the placement of following devices with justification:
1. Switch/Hub
2. Repeater
(d) Suggest the technology out of the following for setting-up very fast Internet connectivity among buildings of the university
1. Optical Fibre
2. Coaxial cable
3. Ethernet Cable

Observe the following table CANDIDATE 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 as shown in RESULT ? Also, find the Degree and Cardinality of the RESULT.

TABLE: CANDIDATE

RESULT

Write SQL queries for (i) to (iv) and find outputs for SQL queries (v) to (viii), which are based on the tables
TABLE : BOOK

TABLE: MEMBER

(i) To display all details from table MEMBER in descending order of ISSUEDATE.

(ii) To display the BNO and BNAME of all Fiction Type books from the table BOOK

(iii) To display the TYPE and number of books in each TYPE from the table BOOK

(iv) To display all MNAME and ISSUEDATE of those members from table MEMBER who have books issued (i.e ISSUEDATE) in the year 2017.

(v) SELECT MAX(ISSUEDATE) FROM MEMBER;

(vi) SELECT DISTINCT TYPE FROM BOOK;

(vii) SELECT A.CODE,BNAME,MNO,MNAME FROM BOOK A, MEMBER B
WHERE A.CODE=B.CODE ;

(viii) SELECT BNAME FROM BOOK
WHERE TYPE NOT IN (“FICTION”, “COMIC”);

State Distributive Laws of Boolean Algebra and verify them using truth table.

Draw the Logic Circuit of the following Boolean Expression using only NAND Gates:
X.Y + Y.Z

Derive a Canonical SOP expression for a Boolean function F, represented by the following truth table:

Reduce the following Boolean Expression to its simplest form using K-Map:
F(X,Y,Z,W)= Σ (0,1,2,3,4,5,10,11,14)