Question 1

How to convert JSON Text to a JavaScript Object ?

Accepted Answer

One of the most common use of JSON is to fetch JSON data from a web server (as a file or as an HttpRequest), convert the JSON data to a JavaScript object, and then it uses the data in a web page The eval() function can compile and execute any JavaScript This represents a potential security problem It is safer to use a JSON parser to convert a JSON text to a JavaScript object A JSON parser will recognize only JSON text and will not compile scripts

Question 2

Which command displays memory usage in linux?

Accepted Answer

Free command displays memory usage in linux.

Question 3

What is MDM ?

Accepted Answer

MDM is short for Mobile Device Management The term generally refers to a system that hooks into the operating system on smartphones to collect information or apply restrictions and security precautions that may be sound company policy This is true for Miradore Online, our free MDM product you can get started with today

Question 4

Can any object be stored in a View state in .NET ?

Accepted Answer

View state is a repository in an ASPNET page that can store values that need to be retained during postback

Question 5

What are the challenges faced while successfully implementing Business intelligence?

Accepted Answer

Most companies grasp the potential value of successful business intelligence applications However, a common challenge that IT professionals encounter is how to find successful BI application that are adopted by users and make a positive impact on the organization and on the bottom line It can be difficult to structure effective BI project teams, select the right BI application, manage business-IT communications and measure BI success BI is robust application, developing and optimizing successful BI application is always a challenge which involves structuring BI teams and managing business-IT communication

Question 6

How do we Tune the BO Reports for Performance Improvement?

Accepted Answer

We can tune the report by using index awarness in universe

Question 7

Why we can't create an aggregate on an ODS Object?

Accepted Answer

1 Operational Data Store has very low data latency Data moved to ODS mostly on event based rather than time based ETL to Data Warehouse/Data Mart 2 ODS is more closer to OLTP system We don't normally prefer to store aggregated data in OLTP So it is with ODS 3 Unlike data warehouse where data is HISTORICAL, ODS is near real time(NRT) So data aggregation is less important is ODS as data keeps changing

Question 8

What is hierarchy relationship in a dimension. whether it is: 1) 1:1 2) 1:m 3) m:m

Accepted Answer

1:m

Question 9

What is a key field in an IMS database?

Accepted Answer

A Field that DL/I uses to maintain the segments in the ascending order is called the key field

Question 10

What is the use of SYSPRINT, SYSIN, DUMMY in JCL ?

Accepted Answer

SYSPRINT: All system output will appear under this DD card Suppose you are copying a VSAM file using IDCAMS Then, number of records processed, highest condition code etc will appear under sysprint You cannot customise SYSPRINT output SYSIN: This is nothing but SYStem INstruction Suppose, you want to sort a file on certain key You have to have following command under SYSIN SORT FIELDS = (starting-col,length,data-type,A/D) SUM FIELDS = NONE DUMMY: Mainly used where user is intended to simulate a program without creating an output file

Question 11

How will you call the return code of JCL ?

Accepted Answer

Return Code in JCL can b obtained by the use of COND paramaterit is used to know the return codes of previous steps

Question 12

How do you check the syntax of a JCL without running it?

Accepted Answer

TYPERUN=SCAN on the JOB card or use JSCAN TYPERUN=HOLD on the job card it is used for syntatical checks and direct job to spool and hold it

Question 13

Which of the following type of data member can be shared by all instances of its class?

Accepted Answer

Static members are shared by all the instances of the class

Question 14

In which of the following we cannot overload the function?

Accepted Answer

While overloading the return function, it will rise a error, So we can’t overload the return function.

Question 15

What is the Standard Template Library?

Accepted Answer

A library of container templates approved by the ANSI committee for inclusion in the standard C++ specification A programmer who then launches into a discussion of the generic programming model, iterators, allocators, algorithms, and such, has a higher than average understanding of the new technology that STL brings to C++ programming

Question 16

Which is also called as abstract class?

Accepted Answer

Classes that contain at least one pure virtual function are called as abstract base classes.

Question 17

What will happen when an exception is not processed?

Accepted Answer

As in the case of not using an exception, it will remain useless in the program and increase the code complexity.

Question 18

Pick out the correct method in the c++ standard library algorithm.

Accepted Answer

It is a method in the search opertion in standard library algorithms.

Question 19

What is meant by heap?

Accepted Answer

A heap is a way to organize the elements of a range that allows for fast retrieval of the element.

Question 20

What are static and dynamic type checking?

Accepted Answer

Type checking is the operation on which the arguments that can only be applied for Static type checking performs the type checking operation before the execution of the program To perform this operation, the arguments, expressions, variables must be given a data type Dynamic type checking performs the type checking operation at the time of the program execution To perform this operation, the arguments, expressions, variables must be given a data type

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