Answer / md. shahabuddin ansari

VPN stands for Virtual Private Network.VPN provides the
private network communication over public network.VPN uses
L2TP,PPTP & IPSec protocol for communication.VPN provides
secure transmission with these secure protocol.Data is sent
into cipher mode.

RAS is used to access remote pc from another location.RAS
uses PPP protocol for communication.RAS doesn't provide
security because data is sent into simple text format.

Give two reasons why PGP compresses messages.

1 Answers  

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How data flow from source to destination please Explain each step from layer to layer?

3 Answers   Cisco, HCL,

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how many systems can i connect in class "A,B AND C" as well as private and publi network?

1 Answers   Accenture,

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Explain the working of 3 bit sliding window protocol with suitable example.

1 Answers  

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Explain leaky bucket algorithm and compare it with token bucket algorithm.

0 Answers  

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What do you meant by "triple X" in Networks?

2 Answers   Elgi Equipments,

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How many layers are there in OSI ?

11 Answers   Honeywell,

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what is piggy backing?

0 Answers   Wipro,

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Write short note on any four of the following:

0 Answers  

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what are the characteristic of switch and hub ?

1 Answers   KPIT,

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what is flsm

2 Answers  

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how to increase the ping packet size from 32 bytes to more bytes ?

5 Answers  

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