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May 10th, 2016, 11:28 AM
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Re: Download IBPS Specialist Officer Sample Papers

Hey buddy the Institute of Banking Personnel Selection is an autonomous agency in India, which started its operation in 1975 as Personnel Selection Services.


IBPS Specialist IT Officer Paper


1. The channel capacity of a band-limited Gaussian channel is given by

(A). B log2 (2+S/N) (B) B log2 (1+S/N)

(C ).B log10(1+S/N) (D). B loge(1+S/N)

Ans : B. Explanation :- C=B log2 (1 + S/N) where C is the capacity in bits per second. B is the bandwidth of the

channel in Hertz and S/N is the signal to noise ratio.

2. The graph K 3,4 has _______ edges.

(A). 3 edges (B) 4 edges

(C ). 7 edges (D) 12 edges

Ans : D. A bipartite graph is a complete bipartite graph if every vertex in U is connected to every vertex in V. If

U has n elements and V has m, then the resulting complete bipartite graph can be denoted by K n,m and the

number of edges is given by n*m.

The number of edges = K 3,4 = 3 * 4 = 12

3. The total number of spanning trees that can be drawn using five labeled vertices is:

(A). 125 (B).64

(C ). 36 (D). 16

Ans : A. According to cayley’s formula for counting spanning trees, for a complete graph Kn,

T(Kn)= n n-2 where n is the number of vertices.

T(k5)=5 5-2=5 3= 5 * 5 * 5=125

4. Extremely low power dissipation and low cost per gate can be achieved in

(A) MOS ICS (B) C MOS ICS

(C ) TTL ICS (D) ECL ICS

Ans : B. CMOS ICS

5. An example of a universal building block is :

(A). EX-OR Gate (B). AND Gate

(C ). OR gate (D). NOR Gate

Ans:- D. Universal gates are the ones which can be used for implementing any gate like AND,OR and NOT or

any combination of these basic gates. Apart from the NOR gate, NAND gate is also considered as universal gate.

6. An example of a layer that is absent in broadcast networks is :

(A). Physical layer (B). Presentation layer

(C ). Network layer (D). application layer

Ans : C.

7. The ATM cell is :

(A). 48 bytes long (B). 53 bytes long

(C ). 64 bytes long (D). 69 bytes long

Ans: B. An ATM cell always consists of a 5-byte header followed by a 48-byte payload. So the size is 53 bytes

long.

8. Four jobs J1,J2,J3, and J4 are waiting to be run. Their expected run times are 9,6,3 and 5 respectively. In

order to minimize average response time, the jobs should be run in the order:

(A). J1 J2 J3 J4 (B). J4 J3 J2 J1

(C ) J3 J4 J1 J2 (D) J3 J4 J2 J1

Ans : D

9. Suppose it takes 100ns to access page table and 20 ns to access associative memory. If the average access

time is 28ns, the corresponding hit rate is:

(A). 100 percent (B). 90 percent

(C ). 80 percent (D). 70 percent

Ans : B

10. Transmission of N signals , each band limited to Fm Hz by TDM, requires a minimum band-width of

(A).fm (B) 2 fm

(C ) N fm (D) 2N fm

Ans : C. Minimum transmission band-width of TDM channel is given by the following equation.

IBPS Specialist Officer Sample Paper



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