Interview Questions

Q:

What is the full form of SOX and what does it means in Accounting ?

Answer

Sarbanes Oxley Act. Otherwise known as Public companies Accounting reforms and investor protection Act. It was enacted in 2002 in USA after lot of scams come up on accounting framework whereby investors lose faith and confidence on accounting disclosures.

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Subject: Accounts Receivable Exam Prep: Bank Exams , CAT
Job Role: Bank Clerk , Bank PO

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Q:

Does not overriding hashcode() method has any performance implication ?

Answer

A poor Hashcode() function will result in frequent collision in HashMap which eventually increase time for adding an object into Hash Map.

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Subject: Java
Job Role: Analyst , IT Trainer

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Q:

What is the difference between operational data stage (ODS) and data warehouse?

Answer

Data warehouse


- It is a decision support database system for the purpose of organizational needs. 


-It is non volatile, integrated and time variant collection of data


 


Operational Data Stage


- It is an integrated collection of information. 


-It can contain 90 days of information at maximum.


-ODS supports dynamic data.

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Q:

What is APIPA? How would you recognize it?

Answer

Automatic Private IP Addressing


for small network if u see something default automatic numeric values entered in a device that is attached you can see someone novice has done that using APIPA


 

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Q:

What is Hypervisor in Cloud Computing and its types?

Answer

The hypervisor is a virtual machine monitor (VMM) that manages resources for virtual machines. The name hypervisor is suggested as it is a supervisory tool for the virtual machines. There are mainly two types of hypervisors :


- Type-1: the guest Vm runs directly over the host hardware, e.g Xen, Hyper-V, VmWare ESXi


- Type-2: the guest Vm runs over hardware through a host OS, e.g Kvm, Oracle virtualbox

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Subject: Cloud Computing

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Q:

How do you convert flat files to VSAM files?

Answer

Use IDCAMS REPRO to load the flat file into the VSAM file.


 

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Q:

What are the properties and different Types of Sub-Queries?

Answer

Properties of Sub-Query


- A sub-query must be enclosed in the parenthesis.


- A sub-query must be put in the right hand of the comparison operator, and


- A sub-query cannot contain an ORDER-BY clause.


- A query can contain more than one sub-query.


Types of Sub-Query


- Single-row sub-query, where the sub-query returns only one row.


- Multiple-row sub-query, where the sub-query returns multiple rows,. and


- Multiple column sub-query, where the sub-query returns multiple columns

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Subject: SQL

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Q:

What is the importance of XML-based layouts?

Answer

The use of XML-based layouts provides a consistent and somewhat standard means of setting GUI definition format. In common practice, layout details are placed in XML files while other items are placed in source files.

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