Q:

Describe the Buddy system of memory allocation.

Answer

Free memory is maintained in linked lists, each of equal sized blocks. Any such block is of size 2^k. When some memory is required by a process, the block size of next higher order is chosen, and broken into two. Note that the two such pieces differ in address only in their kth bit. Such pieces are called buddies. When any used block is freed, the OS checks to see if its buddy is also free. If so, it is rejoined, and put into the original free-block linked-list.

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Subject: Operating Systems

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Q:

Which of these following "Pizza" is originated from?

A) Mexico	B) Italy
C) Canada	D) Chaina

Answer & Explanation Answer: B) Italy

Explanation:

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Filed Under: General Awareness

3 3297

Q:

Which of the following is/are the function(s) of bile juice released from the liver?

I. Make the food coming from stomach alkaline.

II. Conversion of proteins into amino acids.

III. Break down of fats into smaller globules.

A) Only I	B) Only II and III
C) Only I and III	D) All I, II and III

Answer & Explanation Answer: C) Only I and III

Explanation:

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Filed Under: Biology
Exam Prep: Bank Exams

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Q:

Tribes belonging to which one of the following groups earn their livelihood through food - gathering and hunting?

A) Bushman, Pigmy and Eskimo	B) Masai, Kirghiz, and Boro
C) Pigmy, Eskimo and Kirghiz	D) Boro, Bushman, and Masai

Answer & Explanation Answer: A) Bushman, Pigmy and Eskimo

Explanation:

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Filed Under: World Geography

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Q:

The uranium mines being develope by UCIL at Lambapur and Domiasiat are located, respectively, in which of the following states?

A) Jharkhand and Arunachal Pradesh	B) West Bengal and Assam
C) Andhra Pradesh and Meghalaya	D) Maharashtra and Sikkim

Answer & Explanation Answer: C) Andhra Pradesh and Meghalaya

Explanation:

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Filed Under: Indian Geography

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Q:

Proteins differ from one another because

A) The peptide bonds linking amino acids differ from protein to protein	B) Each protein contains its own unique sequence of sugar molecules
C) The number of nucleotides found in each protein varies from molecule to molecule	D) The sequence of amino acids in the polypeptide chain differs from protein to protein

Answer & Explanation Answer: D) The sequence of amino acids in the polypeptide chain differs from protein to protein

Explanation:

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Filed Under: Chemistry
Exam Prep: AIEEE , Bank Exams , GATE
Job Role: Analyst , Bank Clerk , Bank PO , Database Administration

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Q:

Gear Lapping is an operation

A) for gear reconditioning	B) prior to heat treatment
C) after heat treatment	D) None of the above

Answer & Explanation Answer: C) after heat treatment

Explanation:

Gear Lapping is an operation after heat treatment. Gear lapping is the process of imparting a very fine finish and high degree of accuracy to gear teeth, by using a lapping tool and applying a fine-grained abrasive between a work material and a closely fitting surface, called a lapping plate.

Gear_Lapping_is_an_operation1554186430.jpg image

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Filed Under: Physics
Exam Prep: AIEEE , Bank Exams , CAT
Job Role: Analyst , Bank Clerk , Bank PO

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Q:

The asia games were held in Delhi for the first time in

A) 1951	B) 1963
C) 1971	D) 1956

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