Interview Questions

Q:

In terms of DB2 indexing, what is the root page?

Answer

The simplest DB2 index is the B-tree and the B-tree's top page is called the root page. The root page entries represent the upper range limits of the index and are referenced first in a search. 


 

Report Error

View answer Workspace Report Error Discuss

0 2460
Q:

Why is the main() method declared static?

Answer

main() method is called by the JVM even before the instantiation of the class, hence it is declared as static.

Report Error

View answer Workspace Report Error Discuss

Subject: Java

0 2460
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.

Report Error

View Answer Workspace Report Error Discuss

1 2457
Q:

Name some of the common tables in CICS and their usage?

Answer

PCT (Program Control Table) - Defines each transaction containing a list of valid transaction identifiers (transid) where each transaction is paired with its matching program.


PPT (Program Processing Table) - Contains a list of valid program names and maps and whether a current version is in the CICS region or needs to be brought in as a new copy.


FCT (File Control Table) - Contains a list of files known to CICS, the dataset name and status (closed/open, enable/disabled)


TCT (Terminal Control Table)- A list of the terminals known to CICS.

Report Error

View answer Workspace Report Error Discuss

0 2456
Q:

What is the difference between primary key & unique index ?

Answer

Primary key : a relational database constraint. Primary key consists of one or more columns that uniquely identify a row in the table. For a normalized relation, there is one designated primary key.


Unique index: a physical object that stores only unique values. There can be one or more unique indexes on a table.

Report Error

View answer Workspace Report Error Discuss

0 2455
Q:

What is the difference between PHP and JavaScript?

Answer

The difference lies with the execution of the languages. PHP is server side scripting language, which means that it can’t interact directly with the user. Whereas, JavaScript is client side scripting language, that is used to interact directly with the user.


 

Report Error

View answer Workspace Report Error Discuss

Subject: PHP

0 2453
Q:

What is PHP?

Answer

PHP: Hypertext Preprocessor is open source server-side scripting language that is widely used for web development. PHP scripts are executed on the server. PHP allows writing dynamically generated web pages efficiently and quickly. The syntax is mostly borrowed from C, Java and perl. PHP is free to download and use.


 

Report Error

View answer Workspace Report Error Discuss

Subject: PHP

0 2452
Q:

What is CICS?

Answer

Customer Information Control System (CICS) is an online transaction processing monitor from IBM that acts as an interface between the operating system and application programs to provide rapid high-volume online transaction processing.

Report Error

View answer Workspace Report Error Discuss

0 2449