Technology Questions

Q:

What is usage of Sequence Number in Relaible Transmission?

Answer

The protocol specifies that frames need to be numbered. This is done by using sequence numbers. A field is added to the data frame to hold the sequence number of that frame. Since we want to minimize the frame size, the smallest range that provides unambiguous communication. The sequence numbers can wrap around.

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Q:

What is Pipelining ?

Answer

In networking and in other areas, a task is often begun before the previous task has ended. This is known as pipelining.


 

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Q:

Which API is used to write test scripts that help in exercising the application's user interface elements?

Answer

 UI Automation API is used to automate test procedures. Tests scripts are written in JavaScript to the UI Automation API.  This in turn simulates user interaction with the application and returns log information to the host computer.

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Q:

There is one default constructor in every class.

A) The above statement is true B) The above statement is false
C) Both true and false D) None
 
Answer & Explanation Answer: A) The above statement is true

Explanation:

There will always be a default constructor in every class 

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Filed Under: Java

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Q:

The keyword which indicates that a method can be accessed by only one thread at a time is

A) Strictfp B) Synchronized
C) New D) None
 
Answer & Explanation Answer: B) Synchronized

Explanation:

The synchronized keyword indicates that a method can be accessed by only one thread at a time

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Filed Under: Java

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Q:

What is the alternative to batch input session?

Answer

Call transaction

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Subject: SAP

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Q:

What is the Run-Time Type Information?

A) Information about an object’s datatype at runtime B) Information about the variables
C) Information about the given block D) None of these
 
Answer & Explanation Answer: A) Information about an object’s datatype at runtime

Explanation:

With the help of RTTI, We can get the information about the data type at the runtime.

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Filed Under: C++

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Q:

What is Control File used for?

Answer

Control File is used for:
- Database recovery.
- Whenever an instance of an ORACLE database begins, its control file is used to identify the database and redo log files that must be opened for database operation to go ahead.

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Subject: Oracle

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