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Q1) In data communication we often use the term "bandwidth" when we refer to the capacity (bits-persecond) of a link. Strictly speaking, however, bandwidth refers to the range of frequencies (highest frequency minus lowest frequency) that can be carried on a link. Using the frequency definition of bandwidth, what must the bandwidth of a 10 Mbps Ethernet link be if the signal-to-noise ratio is 20 dB?
Suppose a future where security countermeasures against DoS attacks are much more widely implemented than at present.
Consider the following method for congestion control in a error-free virtual circuit subnet.
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.
Explain how systems analyst can help with project management tasks. Also, explain how new employee can contribute to tasks.
Suppose you could multiplex these signals directly onto SONET STS-1 channel how many MP3 songs could be trasmitted simultaneously?
Should the viewing or monitoring of social networking cites be considered an appropriate method for preliminary employment screening and continued employment with organizations?
Describe the difference between MAC Destination Address in Ethernet header and one found in ARP payload.
In terms of spectrum, does AT&T, Verizon, Sprint, etc...have access to amount of spectrum required to deliver VoIP services as well as Internet radio and TV?
Let RTP session consisting of four users, all of which are sending and receiving packets to same multicast address. How much RTCP bandwidth will each receiver be allocated?
The security manager is to estimate principal physical characteristics used for biometric user authentication, concepts of enrollment.
It asks ISPs to disclose actual identities of these people. Should the ISPs comply with this request. Describe your reasoning
Describe how relative speed of 100BaseT LANs used at each location compares to accessing WAN link between two sites.
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