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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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Subject: Network Administration

Q:

What is the way in which the Asynchronous Transfer Mode works?

Answer

The Asynchronous Transfer Mode or ATM is a connection technology that works by transmitting data into organized 53 bytes (small) packages through a physical environment with a high efficiency. Packing data into small cells reduces transportation delay so the speeds reached by this technology are very high; it can reach even 10 Gb per second.

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Subject: Network Administration

Q:

What is the Routing Information Protocol or RIP?

Answer

RIP is a is an interior gateway protocol that was often used in interior networks and in some degree in internet networks. It helps the router adapt to the modifications that are made in a network regarding connections. Now it become less used since more efficient protocols were implemented like OSPF or IS-IS. It is limited to a lower number of routers, a maximum of fifteen router.

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Subject: Network Administration

Q:

List the steps involved in creating the checksum.

Answer

- Divide the data into sections


- Add the sections together using 1's complement arithmetic


- Take the complement of the final sum, this is the check sum

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Subject: Network Administration

Q:

What is 255.255.255.255 used for?

Answer

Research

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Subject: Network Administration

Q:

What is the (default) class type of 195.152.12.1?

Answer

CLASS B with NET ID 195.152.0.0

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Subject: Network Administration

Q:

What command-line tool would help you discover for which port numbers your computer is listening?

Answer

netstat -n  (on Dos prompt)

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Subject: Network Administration

Q:

What command would you type in at a command prompt to view the IP address of the remote computer?

Answer

Ping


Netstat

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Subject: Network Administration