# JOA-IT Boolean-Algebra-Web-Publishing

Questions And Answers Of JOA-IT Boolean-Algebra-Web-Publishing

## Boolean Algebra

(1). In 1847 Who introduced boolean algebra?

Ans: George Boole

(2). What is Boolean Algebra?

Ans: (a).Branch of algebra in which the value of the variables are the truth values true and false

(b).  true and false are denoted by 1 and 0 respectively.

(3). What are the two values of the variable used in the rule of boolean algebra?

Ans: (a). Binary 1 for High

(b). Binary 0 for Low

(4). In the rule of boolean algebra which sign is used to represent the complement of a variable?

Ans: overbar (-)

(5). By which sign Logical “OR” operation is represented between the variables?

Ans: + (For e.g- A+B)

(6). Which sign is used to represent Logical “AND” operation between the variables?

Ans:  . (For e.g-  A.B)

(7). In Logical “OR” operation if the value of A is 0, and the value of the B is 0, then what is the output of operation?

Ans: 0 (0+0=0)

(8). In Logical OR operation if the value of A is 0, and the value of the B is 1, then what is the output of operation?

Ans: 1

(9). In Logical OR operation if the value of A is 1, and the value of the B is 0, then what is the output of operation?

Ans: 1

(10). In Logical OR operation if the value of A is 1, and the value of the B is 1, then what is the output of operation?

Ans: 1 (A=1, B=1, A+B:=: 1+1=1 for Logical OR operation)

Logical OR Truth Table

 A B Y=A+B 0 0 0 0 1 1 1 0 1 1 1 1

(11). In Logical AND operation if the value of A is 0, and the value of the B is 0, then what is the output of operation?

Ans: 0

(12). In Logical AND operation if the value of A is 0, and the value of the B is 1, then what is the output of operation?

Ans: 0

(13). In Logical AND operation if the value of A is 1, and the value of the B is 0, then what is the output of operation?

Ans: 0

(14). In Logical AND operation if the value of A is 1, and the value of the B is 1, then what is the output of operation?

Ans: 1

Logical AND Truth Table

 A B Y=A.B 0 0 0 0 1 0 1 0 0 1 1 1

JOA-IT Boolean-Algebra-Web-Publishing

(15). In Logical NOT operation if the value of A is 0,  then what is the output of operation?

Ans: 1

(16). In Logical NOT operation if the value of A is 1,  then what is the output of operation?

Ans: 0

Logical NOT Truth Table

 A Y=Ā 0 1 1 0

(17). What is an “Identity law” boolean expression?

Ans: 1st- A+0=0,     2nd-  A.1=1

(18). Identity law expression is A+0=A, If we consider A’s value 1 then what is the output?

Ans: 1 (1+0=1)

Truth Table of  “Identity Law ” first expression that is A+0

 A A+0 0 0 1 1

(19). Identity law expression is A.1=A, If we consider A’s value 0 then what is the output?

Ans: 0

(20). Identity law expression is A.1=A, If we consider A’s value 1 then what is the output?

Ans: 1

Truth Table of  “Identity Law “2nd  expression that is A.1

 A A.1 0 0 1 1

(21). What is the “Idempotent law” boolean expression?

Ans: 1st expression: A+A=A,   2nd expression: A.A=A

(22). “Idempotent law” expression is A+A=A, If we consider A’s value 1 then what is the result?

Ans. 1  (1+1=1)

Truth Table of  “Idempotent law” 1st expression that is A+A=A

 A A+A 0 0 1 1

(23). Idempotent law” expression is A.A=A, If we consider A’s value 0 then what is the result?

Ans: 0

(24). Idempotent law” expression is A.A=A, If we consider A’s value 1 then what is the result?

Ans: 1

Truth Table of  “Idempotent law” 1st expression that is A.A=A

 A A.A 0 0 1 1

(25). What is the “Dominance Law” boolean expression?

Ans: 1st expression: A+1=1,  2nd expression: A.0=0

JOA-IT Boolean-Algebra-Web-Publishing

## Emerging Technologies and Web Publishing:

1. Which of the following describes e‐commerce?
(A) Doing business electronically (B) Sale of goods (C) Doing business (D) All of the above

2. Which of the following is part of the four main types of e‐commerce?
(A) C2B  (B) B2C (C) B2B  (D) All of the above

3. Which segment do eBay, Amazon.com belong to?
(A) C2Cs  (B) C2Bs  (C) B2Cs  (D) B2Bs

4. Which type of e‐commerce focuses on consumers dealing with each other?
(A) C2C  (B) C2B   (C) B2C  (D) B2B

5. Digital products are best suited for B2C e‐commerce because they:
(A) Are commodity-like products
(B) Can be delivered at the time of purchase

(C) Can be mass‐customized and personalized
(D) All of the above

6. The solution for all business needs is
(A) ERP  (B) EDI  (C) SCM  (D) None of the above

7. All of the following are techniques B2C e‐commerce companies use to attract customers, except:
(A) Virtual marketing  (B) Viral marketing  (C) Online ads  (D) Registering with search engines

8. Which is a function of E‐commerce
(A) warehousing  (B) advertising  (C) marketing  (D)  all of the above

9. Which segment is eBay an example of?
(A) B2B  (B) C2C (C) C2B (D) None of the above

10. Which of the following is correct regarding E-Commerce?

(A) It draws on technologies such as mobile commerce, electronic funds transfer, supply chain management Electronic Data Interchange (EDI) etc.

(B) Electronic commerce is commonly known as e-commerce

(C) It’s a type of industry where the buying and selling of products or services is conducted over electronic systems such as the internet

(D) All of the above

11. E-commerce is also called as:

(B) E-tail, E-shop, E-market and E-everything
(C) Both A&B
(D) none of the above

(A) True  (B) False

13. E-commerce is about web-enabling your core business processes to improve customer service, reduce cycle time, get more results from limited resources and actually sell things.

(A) True  (B) False

14. The major segments of electronic commerce include:

JOA-IT Boolean-Algebra-Web-Publishing

15. Electronic Data Interchange (EDI) – is the computer to computer exchange of routine business information between trading partners in a standard format. The ___________ standard is most widely used.

(A) VAN  (B) ANSI X12  (C) ANSI X17(D) None

16. Which of the following is correct for ANSI X12 standard?

(A) Generic documents like requests for quote, purchase orders, invoices and bills are not supported by X12 standards
(B) The X12 standard supports 100s of the document that businesses routinely exchange with each other.
(C) Both A&B
(D) None

17. The Application layer is also called_________:

(A) Transport layer  (B) The Semantic layer (C) The Standard layer  (D) Transport layer

18. In which website Global Easy Buy is facilitated?
(A) Yepme.com  (B) Amazon.com  (C) Ebay.com  (D) None of these

19. The best products to sell in B2C e‐commerce are:
(A) Digital products  (B) Small product  (C) Specialty products  (D) Fresh products

20. Which products are people most likely to be more uncomfortable buying on the Internet?
(A) Books  (B) Movies  (C) Furniture  (D) All of the above

21. Which products are people most likely to be comfortable buying on the Internet?
(A) Books  (B) PCs  (C) CDs  (D) All of the above

22. Which of the following can be classified as e-commerce models?

23. The e-payment modes include:

(A) Electronic purse, Credit cards, Smart card e-payments

(B)  E-cash, Digi-cash, Cyber-cash, E-money

(C) Both A&B

(D) None