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Computer Networking

Computer Networking
In OSI model, which of the following layer provides error-free delivery of data?

None of these
Network
Data link
transport
Session

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Computer Networking
Alice is setting up a small network in her home so that she can study for her MCSE exams. She doesn't have a lot of money to spend on hardware, so she wants to use a network topology that requires the least amount of hardware possible. Which topology should she select?

Token-Ring
Star
Right
Bus
Ethernet

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Computer Networking
The simultaneous transmission of data to a number of stations is known as

Analog transmission
Band width
broadcast
Aloha
None of these

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Computer Networking
Packet Switch Stream (PSS) was introduced in

None of these
the US in 1961 (&) the UK in 1981
the UK in 1980
the US in 1961
None of these

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Computer Networking
Who invented the modem?

Digital Equipment Corpn.
None of these
Apple Computers Inc.
AT & T Information Systems, USA
Wang Laboratories Ltd.

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Computer Networking
Intranets and extranets can use their network fire walls and other security features to establish secure Internet links within an enterprise or with its trading partners. Select the best fit for answer:

Network operating system
Virtual Private Network
Network Server
OSI

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