Question

1.

In which VoIP phase does Skype use a server instead of service directly between peers?

		signaling
		transport
		login
		None of these

2.  

Skype login is necessary so that the user ________.

		can find the IP address of a Skype proxy server
		can find the IP address of a client it wishes to communicate with
		can find her own Skype address
		None of these

3.

Why is link-by-link encryption for confidentiality not fully secure even if there is encryption for confidentiality in all links along the way?

		There cannot be confidentiality on each link.
		Devices along the way may not be secure.
		both There cannot be confidentiality on each link and Devices along the way may not be secure
		neither There cannot be confidentiality on each link nor Devices along the way may not be secure

4.

Which of the following is a file format standard?

		HTML
		HTTP
		both HTML and HTTP
		neither HTML nor HTTP

5.  

When a cloud client customer moves from one client machine to another, ________.

		the same data files are available
		the same application software personalization is in effect
		both the same data files are available and the same application software personalization is in effect
		neither the same data files are available nor the same application software personalization is in effect

6.

In Skype, a directory search to find the IP address of a client to be called, is done by ________.

		peers
		super nodes
		Skype servers
		direct communication between the calling and receiving clients

7.

Skype provides ________.

		Voice over IP
		Video over IP
		both Voice over IP and Video over IP
		neither Voice over IP nor Video over IP

8.   

Which of the following allows you to read your e-mail easily on an Internet café's computer?

		HTTP
		HTML
		IMAP
		SMTP

Answer 1

Dear Student ,

As per the requirement submitted above , kindly find the below solution.

Question 2:

Answer :can find the IP address of a client it wishes to communicate with

Explanation :Skype login is used to find the ip address of client to whom need to connect.

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Question 4:

Answer :HTML

Explanation :HTML stands for hypertext markup language , which is extension used for web pages.While HTTP is hypertext transfer protocol which is used to access internet.

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Question 5:

Answer :both the same data files are available and the same application software personalization is in effect

Explanation :In cloud computing even if client machine is changes all data files and software personalization is in effect because all data and application software is stored on the cloud and which is independent of client.

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Question 7:

Answer :both Voice over IP and Video over IP

Explanation :Skype provides both Voice over IP and Video over IP

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Question 8:

Answer :IMAP

Explanation :Internet Access Message Protocol (IMAP) is used to retrieve the messages from the server and read it.While SMTP (Simple Mail Transfer Protocol) is used to send mail.

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NOTE : PLEASE FEEL FREE TO PROVIDE FEEDBACK ABOUT THE SOLUTION.