Sawaal

 Technology Questions

Popular Latest Rated
Q:

How would you automatically transfer your visitors to a new web page?

Answer

- You can do it with the help of meta tag mentioned below: 


<META HTTP-EQUIV="Refresh" CONTENT="2"; URL="https://www.yourname.com"> 


- Place this tag between <HEAD></HEAD> . 


- It will load yousite.com in 2 seconds.

Report Error

View answer Workspace Report Error Discuss

Subject: Web Technology

1 3900
Q:

Where is the reference stored?

A) stack B) heap
C) queue D) None
 
Answer & Explanation Answer: A) stack

Explanation:

Referencee is stored in stack

Report Error

View Answer Report Error Discuss

Filed Under: C++

1 3893
Q:

Embedded SQL is which of the following?

A) The process of making an application capable of generating specific SQL code on the fly. B) Hard-coded SQL statements in a trigger.
C) Hard-coded SQL statements in a program language such as Java. D) Hard-coded SQL statements in a procedure.
 
Answer & Explanation Answer: C) Hard-coded SQL statements in a program language such as Java.

Explanation:
Report Error

View Answer Report Error Discuss

Filed Under: SQL
Exam Prep: AIEEE , Bank Exams , CAT
Job Role: Analyst , Bank Clerk , Bank PO

2 3887
Q:

What is PHP's mysqli Extension?

Answer

The mysqli extension , or as it is sometimes known, the MYSQL improved extension ,was developed to take advantage of new features found in MYSQL systems versions 4.1.3 and later.

The mysqli extension has a number of benfits,the key enhancements over the mysql extension being:
=> Object-oriented interface
=> Support for prepared statements
=> Support for multiple statements
=> Support for transactions
=> Enhanced debugging capabilities
=> Embedded server support

Report Error

View answer Workspace Report Error Discuss

Subject: PHP

0 3880
Q:

What are different file OPEN modes available in COBOL?

Answer

Open for INPUT, OUTPUT, I-O, EXTEND.


1.INPUT : for read only purpose


2.OUTPUT : for write only purpose


3.EXTEND : for appending records


4.I-O : for read and write(using EXTEND) purpose

Report Error

View answer Workspace Report Error Discuss

Subject: Mainframe Interview

0 3878
Q:

What do you know about the big-O notation and can you give some examples with respect to different data structures ?

Answer

The Big-O notation simply describes how well an algorithm scales or performs in the worst case scenario as the number of elements in a data structure increases. The Big-O notation can also be used to describe other behavior such as memory consumption. Since the collection classes are actually data structures, we usually use the Big-O notation to chose the best implementation to use, based on time, memory and performance. Big-O notation can give a good indication about performance for large amounts of data.

Report Error

View answer Workspace Report Error Discuss

Subject: Java

0 3876
Q:

What is WATER MARK in oracle? Explain the significance of High water mark.

Answer

WATER MARK is a divided segment of used and free blocks. Blocks which are below high WATER MARK i.e. used blocks, have at least once contained some data. This data might have been deleted later. Oracle knows that blocks beyond high WATER MARK don’t have data; it only reads blocks up to the high WATER MARK during a full table scan. 

Report Error

View answer Workspace Report Error Discuss

Subject: Oracle

4 3875
Q:

What do you mean by a deadlock?

Answer

 - When two processes are waiting to update the rows of a table which are locked by another process, the situation is called a deadlock.
 - The reasons for it to happen are:
 * lack of proper row lock commands.
 * Poor design of front-end application
- It reduces the performance of the server severely.
- These locks get automatically released automatically when a commit/rollback operation is performed or any process is killed externally.

Report Error

View answer Workspace Report Error Discuss

Subject: Oracle

0 3871