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A second way to handle revocation is to maintain a list of "bad public-key certificates" at a central repository that is heavily protected from attack. Assuming that it is possible to protect the repository from attack, what are the disadvantages of this approach?
Assume that sender sends silence suppressed RTP stream of G.711 audio to receiver. During talk spurt 20 msecs chunks of quantized audio samples are encapsulated. Determine number of samples are included in each packet?
It is significant to know what issues are for encrypting data in the database. Comment on what you think is most significant obstacle to encryption. Describe your position.
Given a DAC system explain how a MAC system could be "implemented" on top of this DAC system. Explain any problems and assumptions.
Suppose a security-aware caching resolver receives DNS RRset at time t0 with signatures on it which expire at time t1 (where t0
CBC-pad is a block chiper mode of operation used in RC5 block cipher, but it could be used in any block cipher. That is, if the original plaintext is an integer multiple of the block size, why not refrain from padding?
Describe in scholarly detail "technical jargon" and describe the role of project managers and telecommunications managers.
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?
Fiber-optic line has reached capacity. What alternatives can the telephone company consider to increase capacity?
Describe the network you would recommend and how it would be con?gured with the goal of building a new network that will support the company's needs for the next 3 years with few additional investments.
Consider the following method for congestion control in a error-free virtual circuit subnet.
Explain the relationship between privacy and IT. Describe some of the threats to information security and some of the measures you can take to protect information resources.
What possible IEEE 802.11 amendments could be used for the new system? What are the pros and cons of each amendment? Choose an amendment to implement and explain your choice.
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