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Q1) In IEEE 802.11, open system authentication simply consists of two communications. An authentication is requested by the client, which contains the station ID (typically the MAC address). This is followed by an authentication response from the AP/router containing a success or failure message. An example of when a failure may occur is if the clinet's MAC address is explicitly excluded in the AP/router configuration. What are the benefits of this authentication scheme?
Identify the various costs associated with the deployment, operation and maintenance of a mobile-access system. Identify the benefits to the various categories of user, arising from the addition of a mobile-access facility.
From RFC 1034, DNS domain names are composed of labels. Are there any labels which nodes are not allowed to allot to their data? If so, what are they?
Suppose there is a Certificate Authority (CA) with well-known public key. Further suppose every user is issued a certificate for his/her public key.
Terminal A is sending data to terminal B using a sliding window protocol with the window size equal to 5 and the maximum sequence number equal to 6.
Compute the total time required to transfer a 1000KB file on a 1Mbps link with an RTD of 100msec ans a packet size of 1 KB in the following cases.a).
Write about SSH or OpenSSH server services discussion questions
Consider the following method for congestion control in a error-free virtual circuit subnet.
Discuss how initiatives like the Dynamic Open Architecture Radio System (DOARS) Project and the National Task Force on Interoperability (NTFI) are paving the way for more efficient.
Describe the difference between MAC Destination Address in Ethernet header and one found in ARP payload.
By using a laptop computer along with a wireless connection into company’s local area network, you download a Web page from Internet. State all several network connections involved within this operation.
Provide an example explaining the best use of Virus, Encryption, VPN, Firewall securities, when and why?Which security areas you are using and applying to your securities? Also explain why?
Write down the analogous steps in dimensioning a computer network?
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