Computers and Technology

Suppose two hosts, A and B, are connected by a 10 Mbps link. The length of a packet is 12 Kb (Kilobits, i.e., 12 103 bits). The length of the link is 40 km. Assume that signals propagate at the speed of light (i.e., the ideal speed of 3 108 m/s (meters per second)).
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Design a class named Car that has the following fields:yearModel: an int instance variable that holds the cars year model.make: a string instance variable that holds the make of the car.speed: an int instance variable that holds the cars current speed.In addition, the class should have the following methods.Constructor 1: no-arg constructor set the yearModel, make and speed to 2000, Nissan and 4, respectively.Constructor 2: this is an overloaded constructor. This constructor should accept the cars year model, speed, and make as arguments. These values should be assigned to the objects yearModel, speed and make fields.Accessor (getters): appropriate accessor methods to get the values stored in an objects yearModel, make, and speed fields.Mutator (setters): appropriate mutator methods to store values in an objects yearModel, make, and speed fields.toString: returns a string describing the objects yearModel, make and speed.
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When we consider recruiting technology, what is the position called for the "person whose primary responsibility is to use the internet in the recruitment process"?
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Search engine optimization (SEO) techniques play a minor role in a Web site's search ranking because only well-written content matters. True False
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You suspect a hard drive in a system might be failing. What type of data about the hard drive can HWiNFO give you to help you diagnose the problem? Which button on the main menu do you select to get this data?
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A startup company is using an excel spreadsheet to keep track of the billable hours that each employee spends on a project. As you can see, they are not data modelers. They would like to convert the spreadsheet into a database that they can use as a back end for a time keeping application. The column names of the spreadsheet are shown below:Project ID Project Name Project Manager Project Manager Location Employee ID Employee Name Employee Location Title Hourly Rate Billable HoursDraw a dependency diagram for the schema and identify all dependencies, including all partial and transitive dependencies. You can assume that the table does not contain repeating groups. Here are the field descriptions: Project ID the identifier for the project Project Name the name of the project Project Manager the name of the project manager for a project, projects can have more than one project manager Project Manager Location location of the project manager Employee ID the identification number for an employee Employee Name the name of an employee Employee Location the location of an employee Title the position title for the employee Hourly Rate the rate that is charged to the project sponsor based on the position of the employee Hours worked the number of billable hours that an employee has charged to a project 2. Remove all partial and transitive dependencies and draw a new set of relations in third normal form. Put your thinking cap on because there are some obvious data management pitfalls associated with the above relation. 3. Draw the entity relationship diagram. 4. Based on your ERD, draw the physical data model including tables, attributes, data types, primary keys, and foreign keys.
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What is the primary method used by system administrators to apply policy settings in Active Directory? Microsoft Assessment and Planning (MAP) toolkit Domain Name Services (DNS) Lightweight Directory Access Protocol (LDAP) Group Policy Objects (GPO)
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How do Responsive Display Ads use automation? a. Responsive Display Ads use a machine-learning model to create an advertiser's assets, using assets that have performed well in the past. b. Responsive Display Ads automate ad creation for most apps, but not desktop and mobile devices. c. Responsive Display Ads leverage powerful machine-learning models to generate reports customized to meet the specific requirements of each campaign. d. Responsive Display Ads use a machine-learning model to determine optimal assets for each ad slot using predictions based on an advertiser's performance history.
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Write a program that takes in a line of text as input, and outputs that line of text in reverse. The program repeats, ending when the user enters "Quit", "quit", or "q" for the line of text python
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Your Community Supported Agriculture (CSA) farm delivers a box of fresh fruits and vegetables to your house once a week. For this Programming Project, define the class Box Of Produce that contains exactly three bundles of fruits or vegetables. You can represent the fruits or vegetables as an array of type string. Add accessor and mutator functions to get or set the fruits or vegetables stored in the array. Also write an output function that displays the complete contents of the box on the console. Next, write a main function that creates a Box Of Produce with three items randomly selected from this list: Broccoli Tomato Kiwi Kale Tomatillo. This list should be stored in a text file that is read in by your program. For now you can assume that the list contains exactly five types of fruits or vegetables. Do not worry if your program randomly selects duplicate produce for the three items. Next, the main function should display the contents of the box and allow the user to substitute any one of the five possible fruits or vegetables for any of the fruits or vegetables selected for the box. After the user is done with substitutions output the final contents of the box to be delivered.
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Which of the following skills do employers in any field expect their employeesto have?
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How do Europe and North America address the challenges of jurisdiction when a computer crime involves both continents?
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Given a 3 Gbps link with TCP applications A, B, and C. Application A has 25 TCP connections to a remote web server Application B has 4 TCP connection to a mail server Application C has 3 TCP connections to a remote web server. According to TCP "fairness", during times when all connections are transmitting, how much bandwidth should Application C have?(The answer is 281.3 Mbps, but please show me how.)
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Section 1.10 cites as a pitfall the utilization of a subset of the performance equation as a performance metric. To illustrate this, consider the following two processors. P1 has a clock rate of 4 GHz, average CPI of 0.9, and requires the execution of 5.0E9 instructions. P2 has a clock rate of 3 GHz, an average CPI of 0.75, and requires the execution of 1.0E9 instructions(a)One usual fallacy is to consider the computer with the largest clock rate as having the largest performance. Check if this is true for P1 and P2. (5pts)(b)Another fallacy is to consider that the processor executing the largest number of instructions will need a larger CPU time. Considering that processor P1 is executing a sequence of 1.0E9 instructions and that the CPI of processors P1 and P2 do not change, determine the number of instructions that P2 can execute in the same time that P1 needs to execute 1.0E9 instructions. (5pts)(c)A common fallacy is to use MIPS (millions of instructions per second) to compare the performance of two different processors, and consider that the processor with the largest MIPS has the largest performance. Check if this is true for P1 and P2. (5pts)(d)Another common performance figure is MFLOPS (millions of floating-point operations per second), defined asMFLOPS = No. FP operations / (execution time X IE6)But this figure has the same problems as MIPS. Assume that 40% of instructions executed on both P1 and P2 are floating-point instructions. Find the MFLOPS figures for the processors.
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Individuals and businesses have concerns about data security while using Internet-based applications. Which security risk refers to unsolicited bulk messages sent via the Internet? Refers to unsolicited bulk messages sent via the Internet.
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Create a java program that has a code file with main() in it and another code file with a separate class. You will be creating objects of the class in the running program, just as the chapter example creates objects of the Account class. Your system creates a registration bills for the billing part of a college. Create a class called Registration that holds the following information: first name, last name, number of credits, additional fees. The class should have all the gets and sets and also have a method to show the bill (with their name and the total which is 70 per credit + the additional fees) to the student. (You cannot have spaces in variable names. So you might call the first one firstName, first_name, fname or any other appropriate and legal variable name. The write up above is telling you the information to be stored in English, not java). Create 2 objects of Registration in your main code class and display the bills to the user with the method that shows the bill. Then add 3 credit hours to the first one, and subtract 3 credit hours from the second one and show the bills for both to the user again. (Hint: use the get) to read it out to a variable, add 3 (or subtract 3 for the second on), then use the set0 to store it back in replacing the old number of credit hours in the object.) (You can hard code the names, credit hours, and additional hours you are storing in the 2 Registration objects or ask the used for them with a Scanner. Either way is fine. It is perfectly all right from a grading standpoint to just give it test values like the chapter example does).
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Which of the following scenarios could be considered "using music from a stock house supply?" (Select all that apply.)a sound technician contacts A&M Record Company to buy the rights to use a music clipa sound technician takes a music clip from a jazz bands album purchased by the movie studioa sound technician takes a music clip from Madonnas first album from his own collectiona sound technician contacts A&M Record Company for a better recording of a music clip whose copyright is owned by the movie studio
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Write an expression that evaluates to true if the value of the int variable numberOfPrizes is divisible (with no remainder) by the int variable numberOfParticipants. Assume that numberOfParticipants is not zero.
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Draw a project network from the following information. What activity(ies) is a burst activity? What activity(ies) is a merge activity?
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Cost Benefit Analyses (CBAs) cannot be calculated after controls have been functioning for a time, as observation over time prevents precision in evaluating the benefits of the safeguard and determining whether it is functioning as intended.Select one:TrueFalse
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A social media application would most likely do which of the following?
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A hardware manufacturer is seeking to improve its CPU performance by 20% on the next generation design. If the current CPU runs at 2GHz with a CPI of 4 and the new CPU will run at 2.1GHz, what does the new CPI need to be to achieve the objective? g
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What is the best summation of the main idea in Andrew Blums speech, "Discover the Physical Side of the Internet"? Question 10 options: a) Being online too much is bad for ones health. b) More jobs are needed in the technology sector. c) We should be aware of the network and geographic presence behind our internet access rather than taking it for granted.
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John downloaded Alten Cleaner, a program that poses as a computer registry cleaner, on his computer. Once he installed the program on his computer, the program illegitimately gained access to Johns passwords and credit card information. In this scenario, it is evident that John was a victim of _____.a. spoofingb. phishingc. baitingd. pharming
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