# Cisco Placement Questions & Answers :: Cisco

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111 / 119

**Choose the correct option.**

105 shake hands were exchanged in a meeting, each person shakes hands with every other person only once.How many people were present in the meeting?

A14

B8

C56

D15

**Answer:**** Option D **

**Explanation:**

Let n be the number of persons in the party. Number of hands shake = 105; Total number of hands shake is given by nC2.

Now, according to the question,

nC2 = 105;

=> n!/[2!*(n-2)!] = 105;

=> n*(n-1)/2 = 105;

=> n2-n = 210;

=> n2-n-210 = 0;

=> n = 15, -14 (Negative Value);

So, n = 15 i.e. number of persons in the party = 15.

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112 / 119

**Choose the correct option.**

A does 80% of a work in 20 days. He then calls in B and they together finish the remaining work in 3 days. How long B alone would take to do the whole work?

A23 days

B37 days

C40 days

D\(37 \frac{1}{2}\) days

**Answer:**** Option D **

**Explanation:**

Work done by A in 20 days = 80/100 = 8/10 = 4/5

Work done by A in 1 day = (4/5) / 20 = 4/100 = 1/25 --- (1)

Work done by A and B in 3 days = 20/100 = 1/5 (Because remaining 20% is done in 3 days by A and B)

Work done by A and B in 1 day = 1/15 ---(2)

Work done by B in 1 day = 1/15 – 1/25 = 2/75

=> B can complete the work in 75/2 days = 37 (1/2) days

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113 / 119

**Choose the correct option.**

The captain of a cricket team of 11 members is 26 years old and the wicket keeper is 3 years older. If the ages of these two are excluded, the average age of the remaining players is one year less than the average age of the whole team. What is the average age of the team?

A23 years

B24 years

C25 years

DNone of these

**Answer:**** Option A **

**Explanation:**

Let the average age of the whole team by x years.

11x - (26 + 29) = 9(x -1)

11x - 9x = 46

2x = 46

x = 23.

So, average age of the team is 23 years.

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114 / 119

**Choose the correct option.**

A password consists of two letters of the alphabet followed by three digits chosen from 0 to 9. Repeats are allowed. How many different possible passwords are there?

A492,804

B650,000

C676,000

D1,757,600

**Answer:**** Option C **

**Explanation:**

For the first Letter you have 26 possible letters

For the second letter you have 26 possible letters

For the first number you have 10 possible numbers

For the second number you have 10 possible numbers

For the third number you have 10 possible numbers

Times all of the possibilities together to get:

26*26*10*10*10 = 676000

Which means their are 676,000 possible passwords

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115 / 119

**Choose the correct option.**

What is the volume of hemisphere of radius 5 cm?

A250/3 pi

B500/3 pi

C50/3 pi

D350/3 pi

**Answer:**** Option C **

**Explanation:**

Here is no explanation for this answer

**ShortCut By ::**

**Vikash**

Volume of a hemisphere= 2/3 *pi* r^3

2/3* pi* 5^3= 250 pi/3

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116 / 119

**Choose the correct option.**

Two trains with lengths x and y ,and speeds u and v. Approaching each other how much time it takes to takes for faster train to cross other train?

Given: u > v and x > y

A(x + y)/(u - v) sec.

B(x - y)/(u + v) sec.

C(x + y)/(u + v) sec.

DNone of these

**Answer:**** Option C **

**Explanation:**

Here is no explanation for this answer

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117 / 119

**Choose the correct option.**

If 9x-3y=12 and 3x-5y=7 then 6x-2y = ?

A5

B4

C2

D8

**Answer:**** Option D **

**Explanation:**

Here is no explanation for this answer

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118 / 119

**Choose the correct option.**

A train running at the speed of 60 km/hr crosses a pole in 9 seconds. What is the length of the train?

A120 metres

B180 metres

C324 metres

D150 metres

**Answer:**** Option D **

**Explanation:**

Length of the train = (Speed x Time) =50/3 x 9 m = 150 m.

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119 / 119

**What is the output of the following 'C' program?**

```
#include<stdio.h>
void main()
{
int i=3;
switch(i)
{
default:printf("zero");
case 1: printf("one");
break;
case 2:printf("two");
break;
case 3: printf("three");
break;
}
}
```

Azero three

Bthree

Czero one

Dzero

**Answer:**** Option B **

**Explanation:**

The default case can be placed anywhere inside the loop. It is executed only when all other cases doesn't match.

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Here is the list of questions asked in Cisco Technical Questions in Written Test . Practice Cisco Written Test Papers with Solutions and take Q4Interview Cisco Online Test Questions to crack Cisco written round test. Overall the level of the Cisco Online Assessment Test is moderate. Only those candidates who clear the written exam will qualify for the next round, so practic all the questions here and take all the free tests before going for final selection process of Cisco

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