Questions

Q:

What is difference between ARP and RARP?

Answer

The address resolution protocol (ARP) is used to associate the 32 bit IP address with the 48 bit physical address, used by a host or a router to find the physical address of another host on its network by sending a ARP query packet that includes the IP address of the receiver.


The reverse address resolution protocol (RARP) allows a host to discover its Internet address when it knows only its physical address

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Subject: Networking
Job Role: Network Engineer

14 12814
Q:

A boat loaded with rocks floats in the middle of a swimming pool. A man in the boat throws the rocks overboard. The level of water in the pool will

A) increase B) decrease
C) remains the same D) first decrease and then increase
 
Answer & Explanation Answer: B) decrease

Explanation:

Let M and m grams be the mass of boat + rock in it. By law of floatation(M+m) grams of water will be displaced. This has a volume of (M+m)cc. That means the level of water in pool has risen up by (M+m)cc with the boat + rock when it is floating. If the rocks in the boat are thrown not into the pool but outside, the weight left is only M grams the weight of the boat. This will have displaced M cc of water only i.e less water than in the case of loaded boat. But if the rocks are put in the water in the pool and not outside, then the water in the pool will rise not only by M cc on account of empty boat but also by a volume of the stone put into it. This volume will be mdwhere m is the mass of rock and d density of rock.

Now md is  < m. Thus the total rise will be M+mdwhich is < M + m.

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Filed Under: Physics
Exam Prep: AIEEE , CAT
Job Role: Analyst

36 12805
Q:

Mahajanapada situated on the bank of river Godavari was

A) Avanti B) Vatsa
C) Assaka D) Kamboja
 
Answer & Explanation Answer: C) Assaka

Explanation:
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Filed Under: Indian History

12 12802
Q:

What are demand-paging and pre-paging?

Answer

With demand paging, a page is brought into memory only when a location on that page is actually referenced during execution. With pre-paging, pages other than the one demanded by a page fault are brought in. The selection of such pages is done based on common access patterns, especially for secondary memory devices.

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Q:

Indian Cricketer who received Padma Shri 2017 Award is

A) Ajinkya Rahane B) Ravichandran Ashwin
C) Dinesh karthik D) Virat Kohli
 
Answer & Explanation Answer: D) Virat Kohli

Explanation:

Political stalwarts Sharad Pawar, Murli Manohar Joshi and the late Lok Sabha Speaker P A Sangma, cricketer Virat Kohli and Bollywood singer Anuradha Paudwal were among the 39 people who conferred this year’s Padma awards.

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Filed Under: Honours and Awards
Exam Prep: CAT , Bank Exams
Job Role: Bank PO , Bank Clerk

14 12785
Q:

The common name for the crime of stealing passwords is

A) Spoofing B) Surfing
C) Identity Theft D) Speeling
 
Answer & Explanation Answer: A) Spoofing

Explanation:

A spoofing attack is a situation in which one individual or program effectively disguises or mask as another by falsifying information and thereby gaining up an ill-conceived advantage. It may use for stealing password or IP addresses.

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18 12759
Q:

Iodine test is used to detect

A) Carbohydrate B) Fat
C) Protein D) Cholesterol
 
Answer & Explanation Answer: A) Carbohydrate

Explanation:

The iodine test is used to test for the presence of starch i.e, Carbohydrate.

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Filed Under: General Science
Exam Prep: AIEEE , Bank Exams , CAT , GATE
Job Role: Analyst , Bank Clerk , Bank PO

30 12745
Q:

Which of the following birds is the state bird of three indian states?

A) Hill Mynah B) Blue Jay( Indian Roller)
C) Greater Flamingo D) Great Hornbill
 
Answer & Explanation Answer: B) Blue Jay( Indian Roller)

Explanation:

The three states are Andhra pradesh, Karnataka, odisha

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Filed Under: Animals and Birds

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