Interview Questions

Q:

What are pass by reference and pass by value ?

Answer

When an object is passed by value, this means that a copy of the object is passed. Thus, even if changes are made to that object, it doesn’t affect the original value. 


When an object is passed by reference, this means that the actual object is not passed, rather a reference of the object is passed. Thus, any changes made by the external method, are also reflected in all places.

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Subject: Java

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Q:

Interest is usually associated with

A) doubtful accounts B) bad debts
C) accounts receivable D) notes receivable
 
Answer & Explanation Answer: D) notes receivable

Explanation:

Interest is usually associated with notes receivable.

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

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Q:

A capital expenditure results in a debit to 

A) an asset account B) a liability account
C) an expense account D) a capital account
 
Answer & Explanation Answer: A) an asset account

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

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Q:

What is mesh network?

Answer

A network in which there are multiple network links between computers to provide multiple paths for data to travel.

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Subject: Network Administration
Job Role: IT Trainer

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Q:

Data structure suitable for an application discussed in?

A) procedural design B) architectural design
C) data design D) interface design
 
Answer & Explanation Answer: C) data design

Explanation:
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Q:

What is Wi-Fi technology and over which frequency band it operates?

Answer

Wi-Fi technology is a technology used for transmitting a signal using the 802.11 specifications works a lot like it does with a basic Ethernet hub: They’re both two-way forms of communication, and they both use the same frequency to both transmit and receive, often referred to a half-duplex. WLANs used radio frequencies (RFs) that are radiated into the air from an antenna that creates radio waves. These waves can be absorbed, refracted, or reflected by walls, water, and metal surfaces, resulting in low signal strength. So because of this vulnerability to surrounding environmental factors, it’s pretty apparent that wire-less will never offer us the same robustness as a wired network can, but that still doesn’t mean we’re not going to use or run the wireless or Wi-Fi.

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Q:

Difference between a query and a statement in SQL?

Answer

An SQL statement is a string of characters that conforms to the syntax and format specified in the international standard.


A query is a statement that returns a record-set.

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Subject: SQL

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Q:

What are the basic concepts of object oriented programming?

Answer

It is necessary to understand some of the concepts used extensively in object oriented programming.These include


Objects
Classes
Data abstraction and encapsulation
Inheritance
Polymorphism
Dynamic Binding
Message passing

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Subject: C++

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