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Virtual private network
The virtual private networks takes the user data encrypts them and sends them to their destination over the internet. the sender and the receiver are the only two parties on the VPN. The main advantage of VPN is its relative low cost in comparing with private and hybrid networks. The major two disadvantage are lack of standardization among various and a relatively show transmission speed.
Assign switch ports to VLANs. Refer to the port assignment table at the starting of the lab to assign ports to the VLANs. Use the interface range command to make simpler this
Explain Persistence timer? To deal with the zero-size windows What if a receiver advertises that the window size is 0 (by sending ACK) and this ACK is lost? - A
Q. What is Retransmission timer? Retransmission timer if an ACK is received previous to the timer goes off - destroy the timer if the timer goes off before ACK a
explain history of internet?
NETWORK MANAGEMENT & SECURITY 1. Describe a basic communication model. 2. State the following terms: a. Configuration Management b. Fault Management c. Security Management
In slotted Aloha system, it has been measured that 70% of slots are occupied by frames (i.e. the remaining slots are empty). a) How many frames need to be transmitted, on aver
Q. Factors effects the quality of image of monitor? Four factors effects the quality of image of monitor: 1. Phosphor coating: This affects the colour and persistence (Th
The progress of any industry and indeed countries as well, today is linked to the effective performance of its equipments, processes and systems. Reliability engineering, not only
What are local variables? Local varaiables are those which are declared within a block of code like methods. Local variables should be initialised before accessing them.
Q. Example on TCP numbering? Envision a TCP connection is transferring a file of 6000 bytes. The first byte is numbered 10010. What are the sequence numbers for every seg
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