Technology Questions

Q:

What are the important topologies for networks?

Answer

BUS topology:


In this each computer is directly connected to primary network cable in a single line.


 


STAR topology:


In this all computers are connected using a central hub.

Report Error

View answer Workspace Report Error Discuss

2 3107
Q:

What JSON framework is supported by iOS (iPhone OS) ?

Answer

  • SBJson framework is supported by iOS.

  • It is a JSON parser and generator for Objective-C (Objective-C is the primary programming language you use when writing software for OS X and iOS. It is a superset of the C-programming language and provides object-oriented capabilities and a dynamic runtime).

  • SBJson provides flexible API's and additional control that makes JSON handling easy.

Report Error

View answer Workspace Report Error Discuss

8 3106
Q:

What is sqlcode -811?

Answer

SELECT statement has resulted in retrieval of more than one row.

Report Error

View answer Workspace Report Error Discuss

0 3106
Q:

What do you mean by stack unwinding?

Answer

Stack unwinding is a process of calling all destructors for all automatic objects constructed at run time when an exception is thrown. Destructors are called between the places where the exception was thrown and where it is caught.

Report Error

View answer Workspace Report Error Discuss

Subject: C++

0 3102
Q:

What is purpose of VSAM?

Answer

VSAM acts as an interface between Application program & Operating System.

Report Error

View answer Workspace Report Error Discuss

0 3100
Q:

What is data cleaning? How can we do that?

Answer

Data cleaning is also known as data scrubbing. Data cleaning is a process which ensures the set of data is correct and accurate. Data accuracy and consistency, data integration is checked during data cleaning. Data cleaning can be applied for a set of records or multiple sets of data which need to be merged.


Data cleaning is performed by reading all records in a set and verifying their accuracy. Typos and spelling errors are rectified. Mislabeled data if available is labeled and filed. Incomplete or missing entries are completed. Unrecoverable records are purged, for not to take space and inefficient operations.

Report Error

View answer Workspace Report Error Discuss

0 3087
Q:

If an array with name as "names" contain three elements, then how will you print the third element of this array?

Answer

Print third array element document.write(names[2]);

Note:- Array index starts with 0.

Report Error

View answer Workspace Report Error Discuss

Subject: Web Technology

0 3085
Q:

Where SQL server user names and passwords are stored in SQL server?

Answer

They get stored in System Catalog Views sys.server_principals and sys.sql_logins.

Report Error

View answer Workspace Report Error Discuss

Subject: SQL

0 3080