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 Technology Questions

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Q:

What are the different types of diagrams and what do you know about them?

Answer

Use case diagram, activity diagram, Collaboration diagram. 


Use case diagram :


It describes the business environment. Its primary goal is to show the series of events and actions within any given process that will be performed by an actor.  


 


Activity diagram:


The activity diagram is important because it gives an outline of the work flow within the business as well as the activities and action completed. 


For instance with a company, there is likely to be more than one department. In such a case each department, will have different access levels to the system. 


So if there’s a Medical, HR and Accounts team they will only have access to screens that relate to each. 


The activity diagram will highlight the differences within the departments which will be very helpful for developers when they are designing and coding. 


 


Collaboration diagram:


A collaboration diagram, also called a communication diagram or interaction diagram, is an illustration of the relationships and interactions among software objects in the Unified Modeling Language (UML). The concept is more than a decade old although it has been refined as modeling paradigms have evolved. 

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Subject: Business Analyst

0 2261
Q:

Define Structure in C++.?

Answer

The C++ programming technique allows defining user defined datatypes through structure. The


syntax to declare structure is as follows:


struct student


{


char name[100]


char address[250]


};

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Subject: C++

0 2260
Q:

XML preserves white spaces.

A) TRUE B) FALSE
Answer & Explanation Answer: A) TRUE

Explanation:

True, the given statement that xml preserves white spaces is correct.

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Subject: Application Development
Job Role: Analyst , IT Trainer

1 2259
Q:

Could you explain the areas where tuning of database is required?

Answer

The following are the areas of concern for tuning:


- Memory Usage


- Data Storage


- Data Manipulation


- Physical Storage


- Logic Storage


- Network Traffic


Tuning Memory Usage: In Oracle 10g, we can use the Automatic Workload Repository (AWR) toolset to gather and manage statistical data but in case of Oracle 11g, we can use new initialization parameters such as MEMORY_TARGET to further control the overall memory used by Oracle. It helps us to tune the database automatically when we don’t have time to read the AWR report.


Tuning Data Manipulation: There are two ways to tune Data manipulation in Oracle one way is through Conventional Path mode and second is Direct Path mode.


Tuning Physical Storage: We need to tune the physical storage because it limits the disk in database. This can be done by: Distributing I/O, Striping and Mirroring.

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Subject: Oracle

0 2258
Q:

What is AWB?. What is its purpose?

Answer

AWB stands for Administrator WorkBench. AWB is a tool for controlling, monitoring and maintaining all the processes connected with data staging and processing in the business information whearhousing.

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Subject: SAP

0 2256
Q:

What is the difference between verification and validation?

Answer

Verification: Verification is a process to ensure that the software that is made, matches the original design. In other words, it checks whether the software is made according to the criteria and specification described in the requirement document. It is to check whether you built the product right as per design. It is a low level checking. (It is done in walk-through meetings generally). It checked whether it is made accordingly to the design..


Validation: Validation is a process to check whether the product design fits the client’s need. It checks whether you built the right thing. It checks whether it is designed properly.

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Subject: QA Testing

0 2255
Q:

What are constraints? Mention the different types of constraints?

Answer

Constraints enable the RDBMS to enforce the integrity of the database automatically, without the need to create triggers, rule or defaults.


Types of Constraints: NOT NULL, CHEQUE, UNIQUE, PRIMARY KEY, FOREIGN KEY.

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Subject: SQL

0 2253
Q:

What is the importance of Doctype in HTML?

Answer

Doctype tag is not a HTML tag, it is just an instruction that is passed to the web browser to check for the information that is being provided by the markup language in which the page is written. Doctype is sometimes referred as Document type definition (DTD) that describes some rules that has to be followed while writing the markup language so to make the web browser understand the language and the content correctly. Doctype is very important to be placed in the beginning of the HTML and before the <HTML> tag to allow easy rendering of the pages that are used.

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Subject: Web Technology

1 2253