## Discrete Mathematics MCQs

**1. How many bytes are required to encode 2000 bits of data:**

A. 2

B. 1

C. 3

D. 10

**2. A collection of graph is**:

Â A. row and coloumn

Â B. Equation

Â C. vertices and columns

Â D.Â None of above

**3. The number of edges in a complete graph with â€˜nâ€™ vertices is equal to:**

Â A. 2n-1

Â B. n(n-1)

Â C. n^2

Â D. n(n-1)/2

**4. Error correcting code is a _____:**

Â A. hamming code

Â B. gray code

Â C. error deducting code

Â D. none of above

**5. The symbol II is ASCII stands for:**

Â A. international information

Â B. information interchange

Â C. American Standard Code for Information Interchange

Â D. none of above

**6. What is domain of function f(x)= x1/2:**

Â A. [0, âˆž)

Â B. (2, âˆž)

Â C. (-âˆž, 1)

Â D. none of above

**7. ordered collection of objects is:**

Â A. Relation

Â B. set

Â C. proposition

Â D. Function

**8. A function is a Domain of:**

Â A. it is set of natural numbers for which a function is defined

Â B. the maximal set of numbers for which a function is defined

Â C. the maximal set of numbers which a function can take values

Â D. none of above

**9. Range of a function is :**

Â A. the maximal set of numbers for which a function is defined

Â B. the maximal set of numbers which a function can take values

Â C. it is set of natural numbers for which a function is defined

Â D. none of above

**10. In an undirected graph the number of nodes with odd degree must be:**

Â A. odd

Â B. prime

Â C. even

Â D. zero

**11. What is the cardinality of the set of odd positive integers less than 10?**

Â A. 5

Â B. 10

Â C. 3

Â D. 20

**12. The Gray code of a number whose binary representation is 1000 is:**

Â A. 0100

Â C. 0111

Â D. 0110

MCQs collection of solved and repeated MCQs with answers for the preparation of competitive exams, admission test and job of PPSC, FPSC, UPSC, AP, APPSC, APSC, BPSC, PSC, GOA, GPSC, HPSC, HP, JKPSC, JPSC, KPSC, KERALAPSC, MPPSC, MPSC, MPSCMANIPUR, MPSC, NPSC, OPSC, RPSC, SPSCSKM, TNPSC, TSPSC, TPSC, UPPSC, UKPSC, SPSC, KPPSC, BPSC, AJKPSC ALPSC, NPSC, LPSC, SCPSC, DPSC, DCPSC, PSC, UPSC, WVPSC, PSCW, and WPSC.