Master Computers and Technology with Fun Quizzes & Brain Teasers!

Multiple possible outputs, testing a single condition, use: Group of answer choices if . . . else if . . . else if . . . else . . .
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A user has noticed that the hard drive LED on the front of the computer has stopped working. However, the computer seems to be functioning normally. What is the most likely cause of the problem
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Discuss the difference between stateful and packet filtering firewalls. What is User authentication and Network Authentication
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Write a class called Shelf that contains instance data that represents the length, breadth, and capacity of the shelf. Also include a boolean variable called occupied as instance data that represents whether the shelf is occupied or not. Define the Shelf constructor to accept and initialize the height, width, and capacity of the shelf. Each newly created Shelf is vacant (the constructor should initialize occupied to false). Include getter and setter methods for all instance data. Include a toString method that returns a one-line description of the shelf. Create a driver class called ShelfCheck, whose main method instantiates and updates several Shelf objects.
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One drawback with relying on IoT applications to maintain the safety of critical systems is that _____. they only detect patterns or problems as they occur they may analyze data immediately as it streams into the cloud it is impossible to detect faulty sensor data automatically a poor or absent network connection can result in missing data
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The first network crossed has an MTU of 2300 bytes; the second network has a 1500 byte MTU. Assume that all IP headers are 20 bytes. Offsets are listed as they actually appear in the packet header. Which packet or combination of packets will be delivered up to the IP layer at the final destination?
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__________ is the data to be covertly communicated. In other words, it is the message you want to hide.
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Which of the following is not a valid variable name declaration? A. int __a3; B. int __3a; C. int __A3;
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In a wireless or mobile environment, an attacker can deny service by creating radio interference that prevents clients from communicating with access points. Group of answer choices True False
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Programs that can track and steal your personal information and change the settings on your browser without your permission are called _____.
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In the context of territory routing plans, _____ moves in concentric loops that spirals across the territory.
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1. Your boss has asked you to tell him how many usable subnets and hosts a Class C network with the IP address and mask of 195.66.52.0/28 can have. How should you respond
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You are the manager in charge of maintaining desktop computers. A user reports that she can't turn her computer on. After some investigation, you find that the power supply is malfunctioning.Which of the following actions should you perform NEXT?A. Determine whether escalation is required.B. Create an action plan.C. Fix the problem.D. Document the problem.
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In the context of data-flow diagrams (DFDs), the _____ includes arrows that show the direction of data movement.
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Virtualized operating systems use the same ________ features as real operating systems, with user names, passwords, permissions, and so on.
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Which type of laptop display has components that may contain mercury and use either a CCFL or LED backlight
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a control system where the output variable is compared with an input parameter and their difference is used to drive the output is called
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Examples of _______________ computing costs include: Leasing a cloud-based server Leasing software and customized features Scaling charges based on usage/demand instead of fixed hardware or capacity Billing at the user or organization level
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Alice wants to send a message to Bob, who is several network hops away from her. What is the BEST approach to protecting the confidentiality of the message
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Consider a file system with a graphical user interface, such as Macintoshs Finder, Microsofts Windows Explorer, or Linuxs KDE. The following objects were identified from a use case describing how to copy a file from a USB flash disk to a hard disk: File, Icon, TrashCan, Folder, Disk, Pointer. Specify which are entity objects, which are boundary objects, and which are control objects?
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A computer salesman came to College Station and pitched the fact that his system used an accelerated version of Linux. The disk driver uses the elevator algorithm and also queued multiple requests within a cylinder in sector order. Somewhere in Aggieland, a student wrote a program that read 100,000 blocks spread across the disk. Shockingly, she noted that the performance she measured was identical to what would be expected from First Come, First Serve. Is this surprising
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You are a forensic examiner at a large corporation. As part of an investigation into a malware infection, youre looking through web proxy logs for any assets attempting to communicate to a specific server known to be used by the malware. As youre skimming down a report, you notice that one PC appears to be accessing adult websites. What should you do?
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A variation of the round-robin scheduler is the regressive round-robin scheduler. This scheduler assigns each process a time quantum and a priority. The initial value of a time quantum is 50 milliseconds. However, every time a process has been allocated the CPU and uses its entire time quantum (does not block for I/O), 10 milliseconds is added to its time quantum, and its priority level is boosted. (The time quantum for a process can be increased to a maximum of 100 milliseconds.) When a process blocks before using its entire time quantum, its time quantum is reduced by 5 milliseconds, but its priority remains the same. What type of process (CPU-bound or I/O-bound) does the regressive round-robin scheduler favor? Explain.
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Specifying the data types, structures, and constraints of the data to be stored in the database. A. Defining B. Constructing C. Manipulating D. Sharing
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