Write a SQL view to show the pid and movieid where the name of the actor is ‘Tom Hanks’ and the movie must belong to the ‘Action’ Genre.

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asked in Database Management Systems by anonymous Movies(movieid, title, year) People(pid, name) Genres(gid, genre) ActsIn(pid, movieid) HasRole(pid, movieid, role) HasGenre(gid, movieid)

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Movies(movieid, title, year) People(pid, name) Genres(gid, genre) ActsIn(pid, movieid) HasRole(pid, movieid, role) HasGenre(gid, movieid)

asked in Database Management Systems by anonymous

+1 vote

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Explain what is meant by a ‘compensation action’ and, using an example, show why these actions may have to be included in workflows.

asked in Software Engineering by anonymous

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Suppose, there are N number of operations that have to be performed for a transaction. Now describe, in which state the (N-1) operations will be executed and what’s the name of N th operation for that specific transaction.

asked in Database Management Systems by anonymous

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Network Technology involves the use of data systems to manage and deliver digital resources over a computer network. From your point of view, which network technology is better for any case.

asked in Computer Networks by anonymous

+2 votes

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Consider a planet where everyone belongs to a family of six, every family lives in its own house, each house has a unique address, and each person in a given house has a unique name.

asked in Computer Networks by (user.guest)

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A manager decides to use the reports of program inspections as an input to the staff appraisal process. These reports show who made and who discovered program errors. Is this ethical managerial behavior?

asked in Software Engineering by anonymous

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Verification and Validation (V&V) is intended to show that a system both conforms to its specification and that it meets the expectations of the system customer. Diagrammatically explain the approaches of the testing.

asked in Software Engineering by anonymous

+2 votes

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Write a case study in the style used here to illustrate the importance of communications in a project team. Assume that some team members work remotely and it is not possible to get the whole team together at short notice.

asked in Software Engineering by anonymous

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What is meant by the "match plus action" operation of a router or switch? In the case of destination-based forwarding packet switch, what is matched and what is the action taken?

asked in Computer Networks by (user.guest)

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Write a servlet a program to print your Name , Age and Qualification.

asked in Programming Languages & Algorithms by anonymous

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Write some Characteristics of SQL Commands?

asked in Database Management Systems by (user.guest)

+2 votes

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Using an example of a component that implements an abstract data type such as a stack or a list, show why it is usually necessary to extend and adapt components for reuse.

asked in Software Engineering by anonymous

+2 votes

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Using an example of a component that implements an abstract data type such as a stack or a list, show why it is usually necessary to extend and adapt components for reuse.

asked in Software Engineering by anonymous

+1 vote

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By means of suitable diagram, show how a CPU chip is interconnected to an I/O and a main memory in a simple Von Newman computer design bus system

asked in Computer Architecture by anonymous

+1 vote

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What is a Transaction. Write the Four Properties of Transactions?

asked in Database Management Systems by (user.guest)

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True or false: When a BGP router receives an advertised path from its neighbor, it must add its own identity to the received path and then send that new path on to all of its neighbors. Explain.

asked in Computer Networks by (user.guest)

+3 votes

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You have been asked to design a secure system that requires strong authentication and authorization. The system must be designed so that communications between parts of the system cannot be intercepted and read by an attacker.

asked in Software Engineering by anonymous

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Section 15.4 includes a C program that calculates the greatest common divisor of two integers. Describe the algorithm in words and show how the program does implement the Euclid algorithm approach to calculating the greatest common divisor.

asked in Computer Architecture by anonymous

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Consider you have 10 data packet from 0 to 9. In Go-back-N and Selective repeat both have window size of 5. While transferring packet, ACK2 is lost. What will happened then? Show the scenario with proper figure.

asked in Computer Networks by anonymous

+4 votes

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Explain why the process of project planning is iterative and why a plan must be continually reviewed during a software project.

asked in Software Engineering by anonymous

+2 votes

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Explain what is meant by the term or phenomenon ‘Register naming’ and show by a sequence of program outline how this is achieved in a computer architecture

asked in Computer Architecture by anonymous

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The time till failure of a part, T years, has the probability density function below and is zero elsewhere, where k is a constant

asked in Software Engineering by anonymous

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The time till failure of a part, T years, has the probability density function below and is zero elsewhere, where k is a constant. i. Sketch a graph of the failure rate against time. ii. What does the shape of this graph tell you?

asked in Software Engineering by anonymous

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people argue that developers should never be responsible for testing their own code, and this task should be the responsibility of a separate team. Who should be responsible for all testing? Why? Give arguments for view.

asked in Software Engineering by anonymous

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Duplicate: You have been asked to prepare and deliver a presentation to a non-technical manager to justify the hiring of a system architect for a new project. Write a list of bullet points setting out the key points in your presentation. Naturally.

asked in Software Engineering by anonymous

–1 vote

1 answer

Duplicate: You have been asked to prepare and deliver a presentation to a non-technical manager to justify the hiring of a system architect for a new project. Write a list of bullet points setting out the key points in your presentation. Naturally,

asked in Software Engineering by anonymous

+2 votes

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Write a small program to determine the endianness of machine and report the results. Run the program on a computer available to you and turn in the output.

asked in Computer Architecture by anonymous

+2 votes

1 answer

Write a program that will take as input two Web page URLs and find a path of links from one to the other.

asked in Artificial Intelligence by anonymous

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Suppose you wish to prove that the following is true for all positive integers nby using the Principle of Mathematical Induction: 1 + 3 + 5 + ... + (2n -1) =n2(a) Write P(1)

asked in Maths & Statistics by anonymous

+1 vote

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A fair coin is tossed, and a fair die is thrown. Write down sample spaces for (a) the toss of the coin; (b) the throw of the die; (c) the combination of these experiments.

asked in Maths & Statistics by (user.guest)

+1 vote

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Let {Xn} and {Yn} be sequences of random variables such that Xn diverges to ∞ in probability and Yn is bounded in probability. Show that Xn + Yn diverges to ∞ in probability.

asked in Maths & Statistics by (user.guest)

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Suggest circumstances where it is appropriate to use a fault-tolerant architecture when implementing a software-based control system and explain why this approach is required.

asked in Software Engineering by anonymous

+1 vote

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Skype offers a service that allows you to make a phone call from a PC to an ordinary phone. This means that the voice call must pass through both the Internet and through a telephone network. Discuss how this might be done.

asked in Computer Networks by (user.guest)

–1 vote

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Duplicate: Explain why the project planning is iterative and why a plan must be continually reviewed during a software project

asked in Software Engineering by anonymous

+1 vote

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The data rate of 10Base5 is 10 Mbps. How long does it take to create the smallest frame? Show your calculation.

asked in Computer Networks by anonymous

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For laminar flow in a tube with a constant wall heat flux, it can be shown that the microscopic energy equation can be reduced to the following form where qy is the heat flux in the y direction

asked in Maths & Statistics by (user.guest)

+1 vote

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You are an engineer in charge of the development of a small, safety-critical train control system, which must be demonstrably safe and secure...

asked in Software Engineering by anonymous

+1 vote

1 answer

Discuss the advantages of graphical information display and suggest four applications where it would be more appropriate to use graphical rather than digital displays of numeric information.

asked in Software Engineering by anonymous

+1 vote

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Discuss four historical innovations contributed by the field to which Mr. Annor belong, linking them to any of the key concepts of his profession.

asked in Computer Architecture by anonymous

+3 votes

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What is an essential different between RR and WFQ packet scheduling? Is there a case where RR and WFQ will behave exactly the same?

asked in Computer Networks by (user.guest)

0 votes

0 answers

Discuss an example of a type of system where social and political factors might strongly influence the system requirements. Explain why these factors are import in your example.

asked in Software Engineering by anonymous

0 votes

0 answers

Explain The Fundamentals of Frequency and Time division multiplexing (FDM and TDM), and give an example of where FDM and TDM would be used in a multimedia network

asked in Computer Networks by anonymous

+2 votes

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Explain why distributed software systems are more complex than centralized software systems, where all of the system functionality is implemented on a single computer.

asked in Software Engineering by anonymous

+1 vote

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A fair coin is flipped three times. Let S be the sample space of the eight possible outcomes, and let X be the random variable that assigns to an outcome the number of heads in this outcome. What is the expected value of X?

asked in Maths & Statistics by anonymous

–1 vote

1 answer

Duplicate: How might you use a model of a system that already exists? Explain why it is not always necessary for such a system model to be complete and correct. Would the same be true if you were developing a model of a new system?

asked in Software Engineering by anonymous

–1 vote

1 answer

Duplicate: Circle the portion of the IP address that would be invalid if it were assigned to a host, and then explain why it is invalid: 1. 131.107.256.80 2. 0.127.4.100 3. 222.222.255.222 4. 190.7.2.0 5. 127.1.1.1 6. 255.255.255.255 7. 198.121.254.255

asked in Computer Networks by anonymous

–1 vote

1 answer

Duplicate: Circle the portion of the IP address that would be invalid if it were assigned to a host, and then explain why it is invalid: 131.107.256.80

asked in Computer Networks by anonymous

–1 vote

1 answer

Duplicate: Circle the portion of the IP address that would be invalid if it were assigned to a host, and then explain why it is invalid:

asked in Computer Networks by anonymous

+1 vote

1 answer

Circle the portion of the IP address that would be invalid if it were assigned to a host, and then explain why it is invalid

asked in Computer Networks by anonymous

0 votes

1 answer

What does it mean for a wireless network to be operating in “infrastructure mode?” If the network is not in infrastructure mode, what mode of operation is it in, and what is the difference between that mode of operation and infrastructure mode?

asked in Computer Networks by (user.guest)

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