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Q:

Which layer is used for reliable communication between end nodes over the network and provides mechanisms for establishing , maintaining , and terminating virtual circuits; transport - fault detection and recovery; and controlling the flow of information?

Answer

The Transport layer uses virtual circuits to create a reliable connection between two hosts.

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Subject: CCNA

Q:

Which layer combines bits into bytes and bytes into frames, uses MAC addressing , and provides error detection?

Answer

The Data Link layer is responsible for the framing of data packets.

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Subject: CCNA

Q:

Narmada originates from its source situated in the state of

A) Maharashtra B) Uttar Pradesh
C) Madhya Pradesh D) Andhra Pradesh
 
Answer & Explanation Answer: C) Madhya Pradesh

Explanation:

Narmada rises near Amarkantak

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Filed Under: Indian Geography

Q:

Monocarpic plants are those that produce fruits ...............during the life of the plant

A) once B) thrice
C) many times D) twice
 
Answer & Explanation Answer: A) once

Explanation:

Plants are of different types. Some grow well and then produce fruits before they die. In other words they fruit only once in their life. Such plants are said to be monocarpic. Other plants produce fruits every season. These are called polycarpic plants.

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Filed Under: Biology

Q:

The protoplasm of a child is exactly the same as that of its

A) mother B) father
C) grandfather D) identical twin
 
Answer & Explanation Answer: D) identical twin

Explanation:

Though all living organisms  are made of protoplasm each individual has a different composition however slight it be. In identical twins the same cell divides into two and each one develops into one person. So the genitic make-up and type of protoplasm are exactly the same.

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Filed Under: Biology

Q:

Water table in most parts of the State has gone down to such a level that its extraction for irrigation purposes is not economical any more.

 

Courses of action:

I. Extraction of ground water for any purpose in the State should be banned for some time in order to replenish the water table.

II. The Government should make provisions for alternative methods of irrigation so that the farmers are not compelled to use ground water.

A) If only course of action I follows B) If only course of action II follows
C) If either course of action I or II follows D) If both courses of action I and II follow
 
Answer & Explanation Answer: B) If only course of action II follows

Explanation:

I is impractical. Water is essential for life to go on. II is sensible, especially when using ground water is proving to be uneconomical

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Q:

As per the National Forestry Report, 1998 , India must retain a true cover of 33 per cent as against the 19 per cent at present . A budgetary allocation of Rs 850 crore is just a drop in the ocean.

Conclusions:

I. The forest coverage in a country should be in proportion to its popullation 

II. Inadequate budgetary allocation comes in the way of enhancing the forest coverage.

A) If only conclusion I follows B) If only conclusion II follows
C) If neither I nor II follows D) If both I and II follow
 
Answer & Explanation Answer: B) If only conclusion II follows

Explanation:

The relation of forest to population can't be derived from the statement. Hence I does not follow. From the second sentence and from the tone of the statement II can be derived. Hence follows.

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Q:

If the digits in the number 25673948 are arranged in ascending order from left to right, what will be the sum of the digits which are fourth from the right and third from the left in the new arrangement?

A) 10 B) 9
C) 8 D) 6
 
Answer & Explanation Answer: A) 10

Explanation:

Given Number :      2 5 6 7 3 9 4 8

 

Ascending order :  2 3 4 5 6 7 8 9

 

Specified letters are 6 and 4 respectively.

 

Hence, required sum = (4 + 6 = 10)

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