Technical Questions

Q:

Methods declared as what cannot be overriden?

A) Transcient B) Abstract
C) Final D) Super
 
Answer & Explanation Answer: C) Final

Explanation:

Once a method declared as Final cannot be  overriden

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Filed Under: Programming

0 3509
Q:

Using OQL, you may do which of the following?

A) Return an entire collection of elements including duplicates. B) Return a collection of elements without duplicates.
C) Return a specific subset of elements using a given criteria. D) All of the above.
 
Answer & Explanation Answer: D) All of the above.

Explanation:
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Filed Under: Database

0 3504
Q:

Does the minimum spanning tree of a graph give the shortest distance between any 2 specified nodes?

A) Yes B) No
C) May be Yes or No D) None
 
Answer & Explanation Answer: B) No

Explanation:

No.Minimal spanning tree assures that the total weight of the tree is kept at its minimum. But it doesn’t mean that the distance between any two nodes involved in the minimum-spanning tree is minimum.

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Filed Under: Database
Job Role: Database Administration

1 3502
Q:

FTP is File Transmission Protocol

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

Explanation:

FTP-File Transfer Protocol

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Subject: Networking
Job Role: Network Engineer

0 3485
Q:

How can you get/set an environment variable from a program?

Answer

Getting the value of an environment variable is done by using `getenv()’. Setting the value of an environment variable is done by using `putenv()’

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Subject: Operating Systems Exam Prep: GATE

2 3482
Q:

What is the difference between microkernel and macro kernel?

Answer

Micro-kernal : A micro-kernel is a minimal operating system that performs only the essential functions of an operating system. All other operating system functions are performed by system processes.


Monolithic : A monolithic operating system is one where all operating system code is in a single executable image and all operating system code runs in system mode.

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Q:

OSI Reference Model provides a framework for discussing network operations and design

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

Explanation:

It provides a framework for discussing network operations and design

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Subject: Networking
Job Role: Database Administration

0 3454
Q:

Cloud computing uses Server virtualization.

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

Explanation:

Cloud computing :: 


Cloud computing is an information technology (IT) paradigm that enables ubiquitous access to shared pools of configurable system resources and higher-level services that can be rapidly provisioned with minimal management effort, often over the Internet.


 


Server virtualization :


Server virtualization is a virtualization technique that involves partitioning a physical server into a number of small, virtual servers with the help of virtualization software. In server virtualization, each virtual server runs multiple operating system instances at the same time.


cloud-computing_server_virtuaization1532503685.jpg image


 


Server virtualization is more for a good reason. It offers the potential to dramatically save space and improve server efficiency. Vendors are in fierce competition to offer the most advanced tools that they hope will earn them the virtualization crown.


 


Hence, the given statement that 'Cloud computing uses Server virtualization.' is TRUE.


 


 

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