Reference no: EM131554342
Part 1: A hard disk has four surfaces (that's top and bottom of two platters). Each track has 2,048 sectors and there are 131,072 (217) tracks per surface. A block holds 512 bytes. The disk is not "zoned." What is the total capacity of this disk? Show your work. (Hint: what is the relationship between blocks and sectors? Another hint: All of the numbers given are powers of two.)
Part 2: Given the disk in Part 1, how much data can be accessed without moving the disk heads. (That, is, what is the capacity of one cylinder?)
Part 3: Information technology managers use RAID arrays to guard against loss of data in case of physical disk failure. Modern disk drives now have sizes in terabytes. What effect does this have on the reliability of RAID arrays? (Hint: What happens when a disk fails? How are data from the failed disk recovered, and how long does that take?)
Part 4: Breaking messages to be sent over a communication facility into packets introduces overhead, a disadvantage. Name and briefly describe three advantages of packet-switched communications.
Part 5: Explain what the ARP protocol does and how it works. (You need about a paragraph of detail; a single sentence will not do.)
In a separate paragraph, tell why the ARP protocol is needed; that is, why is the information provided by ARP even needed at all.
Part 6: The IP protocol (and UDP) are called "connectionless" and "unreliable." Describe what those two words mean in the context of data communications.
Part 7: What is an Ethernet collision? Explain the process by which Ethernet recovers from a collision.
Part 8: Explain how RAID can protect against disk hardware failure. (You need about a paragraph of detail; a single sentence will not do.)
Part 9: Explain how collisions are avoided in modern Ethernet network design. (You need about a paragraph of detail; a single sentence will not do.)
Part 10: Explain how an Ethernet switch determines to which port to forward an incoming packet. Your answer must cover both the case of a destination that has previously made a transmission and one that has not.
Predict potential consequences to other persons
: Predict potential consequences to other persons (e.g., research participants, patients, clients, students, etc.) when this violation occurs.
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Explanation of the differences between the if
: Provide an explanation of the differences between the If Then Else IF clause and a Nested If Block?
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Which ones do you think counselors most often overlook
: Based on the lectures and McMinn, why can't a sensitive Christian counselor just automatically and quickly confront obvious sin in the life of the counselee?
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What is the probability that demand will exceed
: Anticipated consumer demand in a restaurant for frre range steaks next month can be modeled by a normal random variable with mean 1200 pounds.
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Relationship between blocks and sectors
: The disk is not "zoned." What is the total capacity of this disk? Show your work. (Hint: what is the relationship between blocks and sectors?
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Find probability-in any hour six complaints will be received
: The store manager observes the complaints office for a 30-minute period, during which no complaints are received.
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Determining the linear regression
: As mentioned in class, a perceptron without a step or sigmoid threshold is simply a linear function, and therefore the learning is the same as linear regression
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Perform two manova analyses
: Perform two MANOVA analyses, a 3-Group analysis and a Factorial Design with 2-Independent variables as directed below on the HATCO dataset.
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Measures distance of a sample to each class mean
: K-means (in its common simple form) implicitly assumes that all dimensions are comparable, since it measures distance of a sample to each class mean.
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