Questions

Q:

Explain the meaning of mutex.

Answer

Mutex is the short form for ‘Mutual Exclusion object’. A mutex allows multiple threads for sharing the same resource. The resource can be file. A mutex with a unique name is created at the time of starting a program. A mutex must be locked from other threads, when any thread that needs the resource. When the data is no longer used / needed, the mutex is set to unlock.

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Q:

Which of the following is used to preserve specimens in the biology laboratory?

A) Phenol B) Benzaldehyde
C) Formaldehyde D) Acetic acid
 
Answer & Explanation Answer: C) Formaldehyde

Explanation:

A 40% solution of Formaldehyde known as Formalin is used in the preservation of biological specimens because of its hardening action on proteins. 

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Filed Under: Chemistry

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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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Q:

Government launches NEW INDIA initiative with which company ?

A) IBM B) BSNL
C) GOOGLE D) Microsoft
 
Answer & Explanation Answer: C) GOOGLE

Explanation:

In keeping with Prime Minister Narendra Modi's vision of a 'New India', Google India and the Ministry of Electronics and Information Technology (MEITY) announced a set of initiatives aimed at empowering citizens and creating abundant oppurtunities for all.

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Filed Under: General Awareness
Exam Prep: Bank Exams , CAT
Job Role: Bank Clerk , Bank PO

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Q:

Name the India's highest award which is given to a civilian

A) Bharat Ratna B) Param Vir Chakra
C) National Film Award D) Jananpeth Award
 
Answer & Explanation Answer: A) Bharat Ratna

Explanation:
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Filed Under: Honours and Awards

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Q:

Excise duty is a tax levied on the

A) Export of goods B) Import of goods
C) sale of goods D) Production of goods
 
Answer & Explanation Answer: D) Production of goods

Explanation:

An excise or excise tax or excise duty is a type of tax charged on goods produced within the country (as opposed to customs duties, charged on goods from outside the country). It is a tax on the production of a good. This tax is now known as the Central Value Added Tax (CENVAT).

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Q:

What country did we fight during the Revolutionary War?

A) Pakistan B) United States of America
C) England D) Germany
 
Answer & Explanation Answer: C) England

Explanation:

We fought against England in the Revolutionary War for Independence from the British rule.

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Filed Under: Indian History
Exam Prep: AIEEE , Bank Exams , CAT
Job Role: Analyst , Bank PO

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Q:

After the decline of the Chalukya kingdom of Kalyani at the close of the 12th and of the chola kingdom at the begining of the 13th century, the new kingdom which arose in South India were

A) Yadavas of Devagiri and Kakatiyas of Warangal B) Hoysalas of Dwarsamudra and Pandyas of Madurai
C) Vijayanagar and Bahamani kingdoms D) Both (a) and (b)
 
Answer & Explanation Answer: D) Both (a) and (b)

Explanation:
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Filed Under: Indian History

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