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Give a linear-time algorithm to find an odd-length cycle in a directed graph. You may NOT assume that the graph is strongly connected. (Hint: First solve this problem under the assumption that the graph is strongly connected. Then show that every directed graph is a DAG of its strongly connected components.)
Discuss conditions under which it is worth the cost. Suggest some kind of compromise, lower cost solutions that still proved some recovery capabilities, and cases where these might be a preferred alternative.
Tracks traversed Disk receives a request to access a random sector on a random track. Assume the head starts at track 0. What is the average seek time?
More people are utilizing online shopping and banking. Explain one method that you believe is most effective in cracking Web passwords.
What is the speedup of the pipelined machine versus the single cycle machine assuming there are no stalls?What is the speedup of the pipelined machine versus the single cycle machine if the pipeline stalls 1 cycle for 30% of the instructions?
Discuss four different types of wireless technologies. Describe the characteristics and properties of each signal type, and how each can be used.
Does Facebook and Google use same database system? Facebook seems to run with the android platform using gmail address to retain information for user such as phone numbers and contacts.
Are there any tools which someone can utilize safely, other than key recovery, to avoid losing his or her passphrase?
Suppose a computer using direct mapped cache has 2^32 words of main memory and a cache of 1024 blocks, where each cache block contains 32 words. How many block of main memory are there?
Next, boot the system into safe Mode and use Task Manager to list running processes. Which processes that were loaded normally are not loaded when the system is running in safe Mode?
One instructor also serves a department chair. Draw a detailed class diagram to represent the above information.
Why is Facebook's design different? Or has Google merely perfected something that most organizations have just now started to "tackle"?
In this paper three fundamental text retrieval tasks where hash-based indexing. Which task is more appropriate for a text based search retrieval? Provide reasons to support your answer.
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