Q:

What is the main reason the OSI Model was created?

Answer

The OSI Model is used as a reference model.

The primary reason the OSI model was created was so that different networks could inter-operate. Hence, different networks could communicate.

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Q:

Parenthesis is never required in Postfix or Prefix expressions

A) TRUE

B) FALSE

Answer & Explanation Answer: A) TRUE

Explanation:

Parenthesis is not required because the order of the operators in the postfix /prefix expressions determines the actual order of operations in evaluating the expression

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Q:

Match the correct Memory units.

A) a-r, b-p, c-s, d-q	B) a-p,b-s, c-q, d-r
C) a-r, b-s, c-q, d-p	D) a-r, b-q, c-s, d-p

Answer & Explanation Answer: A) a-r, b-p, c-s, d-q

Explanation:

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Q:

Which is the point from where an azimuth originates?

A) South	B) North
C) East	D) West

Answer & Explanation Answer: B) North

Explanation:

The azimuth originates at true North i.e, the azimuth originates from the north point. It is a measure of how far an object forms the observer's north point.

Azimuth is a technical mapping term which is used to describe the direction of an angle between north and south on a compass circle through which the circle line passes. It is the most common military method to express direction. When using an azimuth, the point from which the azimuth originates is the center of an imaginary circle.

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Q:

In a face centred cubic lattice, atom A occupies the corner positions and atom B occupies the face centre positions. If one atom of B is missing from one of the face centred points, the formula of the compound is

1) $A_{2} B_{5}$

2) $A_{3} B_{2}$

3) $A_{2} B_{3}$

4) $A_{3} B_{4}$

A) Option 1	B) Option 2
C) Option 3	D) Option 4

Answer & Explanation Answer: A) Option 1

Explanation:

$Z_{A} = \frac{8}{8}$ ; $Z_{B} = \frac{5}{2}$

So formula of compound is $A B_{\frac{5}{2}}$

i.e., $A_{2} B_{5}$ .

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Q:

The product of mass of a body and the acceleration produced in it equals the ___________ acting on it.

A) force	B) impulse
C) torque	D) kinetic energy

Answer & Explanation Answer: A) force

Explanation:

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Q:

Select the synonym of

to defile

A) to esteem	B) to besmirch
C) to elevate	D) to sanctify

Answer & Explanation Answer: B) to besmirch

Explanation:

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Q:

Orlon is a polymer of

A) Dacron	B) Acrylonitrile
C) Polyamide Nylon	D) None of the above

Answer & Explanation Answer: B) Acrylonitrile

Explanation:

The monomeric unit of orlon polymer is Acrylonitrile. Orlon is also known as Polyacrylonitrile (PAN).

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