devry comp 129 all week discussions and all week quizes

QuestionWeek 1 discussionHardware and Operating Systems (graded)In this discussion, we will look at the basics of both hardware and operating systems. To begin this discussion, let’s first define the difference between hardware and software. What is hardware? What is software? What is the purpose of hardware and software?Avoid using the respond button at the top of the discussion. Help keep the discussion organized by responding only to other posts.Power Supplies and Form Factors (graded)In this discussion, we will look at power supplies and form factors. What is the purpose of a power supply? What is a form factor? How do power supplies and form factors relate to one another?Avoid using the respond button at the top of the discussion. Help keep the discussion organized by responding only to other posts.Week 2 discussionMotherboard and Motherboard Components (graded)Take some time this week to open up your computer (or better yet – an old junky one) and take a look inside (be sure to unplug your machine and not touch any of the components – look but don’t touch). Based on your readings, what kind of motherboard is being used? What form factor? How did you know? Avoid using the respond button at the top of the discussion. Help keep the discussion organized by responding only to other posts.CPU, RAM, and ROM (graded)What is a CPU? What is the purpose of the CPU?Avoid using the respond button at the top of the discussion. Help keep the discussion organized by responding only to other posts.Week 3 discussionWindows OS Basics (graded)Describe the Windows operating system. Discuss some of your favorite Windows features.Maintaining and Optimizing Windows (graded)Have you ever had a problem with your Windows operating system? What happened, and what was the result?Week 4 discussionPeripherals (graded)Identify and discuss some peripherals that ordinary desktop PC users would normally use. Discuss how they work and their purpose.Back-up (graded)Discuss backup strategies and devices that you can use with your PC at home or in the workplace. How does the device connect? What standards does it use?Week 5 discussionNetworked PCs (graded)What are the basic components required to set up a network? How do you add a PC to a network?Internet and Applications (graded)What is one of your favorite applications that utilizes the Internet? Discuss what happens behind the scenes in the network that enables your PC to implement that application.Week 6 discussionsSecurity for PCs and LANs (graded)What are some of the basic precautions a computer owner or network administrator can take to help make the computing environment secure? What are some of the basic security threats that a user or administrator might have to face?Laptop Computers (graded)Discuss how notebooks differ from desktop computers, and how their special issues can be addressed.Week 7 discussionTroubleshooting (graded)Other than a computer, think of a household device that you’ve installed or repaired. Discuss the approach you used and how you might streamline your efforts the next time. How can this process be applied to troubleshooting computers and networks?Preventive Maintenance (graded)What is preventive maintenance? Why is it important to keeping a computer healthy?Question(TCO 2) The ____ provides backup power in the event that the AC fails completely.uninterruptible power supplyline conditioneruniform power supplyline managerQuestion 2. Question :(TCO 2) The ____ card provides a port for a network cable to connect the PC to a network.videointerfacemodemnetworkQuestion 3. Question :(TCO 2) A power ____ is a box inside a computer case that supplies power to the motherboard and other installed devices.unitsupplydistributoractivatorQuestion 4. Question :(TCO 2) The ____ is a group of microchips on the motherboard that control the flow of data and instructions to and from the processor.chipsetblockbridgegateInstructor Explanation: Andrews, Chapter 1Points Received: 4 of 4Comments:Question 5. Question :(TCO 2) ____ is running a processor, motherboard, or video card at a higher frequency than the manufacturer recommends and is not considered a best practice.: OverbuildingOverrunningOverburningOverclockingInstructor Explanation: Andrews, Chapter 1Points Received: 4 of 4Comments:Question 6. Question :(TCO 2) The printer produces output on paper, often called ____ copy.realsofthardvirtualInstructor Explanation: Andrews, Chapter 1Question 7. Question :(TCO 2) A 1 or 0 in this system is called a ____.byteworddatumbitQuestion 8. Question :(TCO 1) The operating system the software that controls the computerinteracts with the computer’s hardware componentsallows user interaction with the kernelAll of the above:Question 9. Question :(TCO 1) The HAL and executive services are elements of the _____.: application softwareshellkerneldevice driversInstructor Explanation: Andrews, Chapter 2:Question 10. Question :(TCO 1) The component of Windows that stores user and application settings is the _____.kernelconfiguration datadevice drivershell(TCO 3) What is/are the motherboard’s primary purpose(s)?House the CPUEnable communication between the CPU and devicesEnable communication between devicesAll of the aboveQuestion 2. Question :(TCO 3) The _______ of the CPU manages data and instructions entering and leaving the CPU.arithmetic logic unit (ALU)cachecontrol unitinput/output (I/O) unitQuestion 3. Question :(TCO 3) Which CPU from the list below runs at the highest speed?Student Answer: Classic PentiumPentium IIIPentium 4Pentium 4 with HT TechnologyQuestion 4. Question :(TCO 3) On the newest ATX motherboards, you will find _____ ISA slots.sixfourtwozeroQuestion 5. Question :(TCO 3) Why does a Pentium system require that SIMMs be installed in pairs?It takes two 32-bit SIMMs to accommodate a 64-bit data path.It takes two SIMMs to yield 8 MB of memory, which is required for a Pentium to work.Pentium system boards are designed to require at least two SIMMs so that the system will have enough memory for normal operation.None of the above. A SIMM can work on a Pentium system board as an individual module.Question 6. Question :(TCO 3) The _______ on a motherboard holds the basic software needed to start a PC.RAMROM BIOShard drivechip setQuestion 7. Question :(TCO 3) The standard local I/O bus on computers is the ____ bus.AGPPCIISAOSSQuestion 8. Question :(TCO 3) If you forget the BIOS password, you can reset it by _____.(A) removing the CMOS battery(B) shorting the pins on the CMOS jumper(C) calling the manufacturerBoth A and BQuestion 9. Question :(TCO 2) Which sequence of events is correct in terms of the boot process?The system clock is started, the video card is tested, the keyboard is checked, and Windows is loaded.The video card is tested, the system clock is started, the keyboard is checked, and Windows is loaded.Windows is loaded, the video card is tested, the keyboard is checked, and the system clock is started.The system clock is started, the keyboard is checked, the video card is tested, and Windows is loaded.Comments:Question 10. Question :(TCO 2) The _______ on a motherboard holds the basic software needed to start a PC.RAMROM BIOShard drivechip setTCO 4) Hardware compatibility refers tothe ability of one piece of hardware to communicate with another.the ability of a hardware item to communicate with its device driver.the ability of the hardware to be used with an operating system.the ability of a hardware item to be updated through BIOS.Question 2. Question :(TCO 4) Copying the Windows DVD to a shared drive on a network computer is one method of installing ________.: multiple workstationsa single workstationa servera virtual machine:Question 3. Question :(TCO 4) Copying an entire drive of one computer to a DVD with the purpose of installing the copy onto another computer is known as unattended installationa distribution servera network installationdisk cloningQuestion 4. Question :(TCO 4) The act of overwriting the existing operating system is known as a(n) ____________.clean installupgrade installdisk cloningrecovery cloningQuestion 5. Question :(TCO 4) The sector on the disk drive that keeps track of the location of where the partitions are located is called the ___________.master boot record (MBR)partition recordsector recordhard disk sectorQuestion 6. Question :(TCO 4) What is the minimum processor speed required for a Windows 7 installation?833MHz1GHz2GHz3GHzQuestion 7. Question :(TCO 4) A good schedule maintenance plan for Windows includes _____________.updating BIOSdefragmenting the hard drivereinstalling Windows once a yearreinstalling Window once every other yearQuestion 8. Question :(TCO 4) When files are spread across many segments of a drive in an unoptimized fashion, the disk is known as a ___________.broken diskfragmented diskunoptimized disksegmented diskQuestion 9. Question :(TCO 4) A useful utility for troubleshooting problems with Windows, applications, and hardware is __________.MMC (Microsoft Management Console)Device managerEvent ViewerCommand promptQuestion 10. Question :(TCO 4) The command prompt command used to copy files is _________.cprmdirdel(TCO 6) A double-sided, dual-layer DVD can hold ____ GB. 2. Question :(TCO 6) Compact disks, DVDs, and Blue-ray disks are examples of ________.optical storagesolid state storagemagnectic storageelectro storageQuestion 3. Question :(TCO 6) __________ is a set of standards used to represent music in a digital format storing each note played by each instrument individually.MP3MIDIJPEGMP4Question 4. Question :(TCO 6) CD drives are available with all of these interfaces except ______.EIDEFirewirea parallel porta USB portCORRECT All of the above are possible.Question 5. Question :(TCO 6) A _____ is used to provide fault-tolerance to a system.CD drivehardware RAIDremovable drivetape driveQuestion 6. Question :(TCO 6) What is the name of the bus used to support high-speed video?ISAUSBVGAPCI-EQuestion 7. Question :(TCO 6) A _____ is a USB device replacing floppies as a means of transporting data from one computer to another.ZIP diskJumpDriveSuperDiskMicrodrive:Question 8. Question :(TCO 5) The connector on the rear of a PC that looks similar to a telephone jack but has eight pins is used for a connectionvideo connectionprinter connectionNone of the aboveQuestion 9. Question :(TCO 5) In serial communications, data is sent bit at a timeeight bits at a timesixteen bits at a timedepending on bus widthQuestion 10. Question :(TCO 5) Some storage devices use memory chips to store data instead of spinning disks. Examples include which of the following?Hard drives, jump drives, CD drivesJump drives, CD drives, Flash memory cardsCD drives, Flash memory cards, floppy drivesSSD, jump drives, Flash memory cardsTCO 7) For almost all networks today, including the Internet, the protocol used is called ______.TCP/IPUDPOSIHTTPQuestion 2. Question :(TCO 7) Which of the following uses a single public IP address to access the Internet on behalf of all of the hosts on the network that may be using other IP addresses or private IP addresses?DHCPNATDNSNetBIOSQuestion 3. Question :(TCO 7) A(n) _______ server usually “listens” on port 20.E-mailFTPHTTPWebQuestion 4. Question :(TCO 7) _______ is the “domain name” part of this url: 5. Question :(TCO 7) The IP address is called the ______ address.loop-backdiagnosticbypasslocal computerQuestion 6. Question :(TCO 7) For a large enterprise company, you can expect that it would have a ______ that contained all of its local ______ networks.LAN, WANSAN, WANWAN, LANWAN, CANQuestion 7. Question :(TCO 7) A ______ is contained within a company or department and located in a single geographical area.SANLANWANMANQuestion 8. Question :(TCO 7) ______ can use wired connections (such as USB or FireWire) or wireless connections (such as Bluetooth or infrared).LANsMANsPANsWANsQuestion 9. Question :(TCO 7) The ______ command can display TCP/IP configuration information and refresh the IP address.msconfignetcnfgipconfignetcfg32Question 10. Question :(TCO 7) A ______ is a device that manages traffic between two networks.bridgerouterconvertertransceiverTCO 8) The protocols used to encrypt account names and passwords are called authentication protocols. The two most popular protocols are ______ and Kerberos.CHAP (Challenge Handshake Authentication Protocol)CIPE (Crypto IP Encapsulation)IPSec (Internet Protocol Security)SSL (Secure Sockets Layer)Question 2. Question :(TCO 9) When a notebook computer goes into ______ mode, information in memory is saved to the hard disk. If there is an interruption in power, the information is not lost.hibernationidlereadystandbyQuestion 3. Question :(TCO 9) Addition of peripherals (such as wireless network cards and hard drives) to notebooks can be accomplished with the use of ______.EIDEexpansion slotsPC cardsUSBQuestion 4. Question :(TCO 8) One job of a firewall is to ensure that incoming communications ______.: are blockedcontain no virusescontain no spywarewere solicited by the PCQuestion 5. Question :(TCO 9) What types of SO-DIMMS can NOT be used in a notebook PC?200-pin DDR SO-DIMMs72-pin SO-DIMMs144-pin SO-DIMMs200-pin DDR2 SO-DIMMs64-pin DDR2 SO-DIMMsQuestion 6. Question :(TCO 9) A ______ provides the same functions as a port replicator, but also adds secondary storage, such as an extra hard drive, a floppy drive, or a DVD drive.docking stationstorage portsecondary stationdrive bank4Comments:Question 7. Question :(TCO 9) ______ let you specify which devices are to be loaded on startup for a particular user or set of circumstances.Hardware profilesFolder redirectionsBriefcase profilesStartup profilesQuestion 8. Question :(TCO 8) At a command prompt, you can use the _______ command to control how user accounts can access files and folders.CaclsPermContAccQuestion 9. Question :(TCO 8) A ______ does not need a host program to work; rather, it substitutes itself for a legitimate program.logic bombTrojan horsevirusbrowser hijackerComments:Question 10. Question :(TCO 8) A ______ tracks all of your keystrokes on a PC.keyloggerwormspywarebrowser hijacker)TCO 10) If the PC powers down at an unexpected time, this is likely to be a symptom of a(n) ______ problem.electricalmotherboardmemoryhard driveQuestion 2. Question :(TCO 10) When troubleshooting a motherboard problem, you shouldstart checking the simple items first such as memory.assume the processor is bad.immediately flash BIOS.immediately remove the CMOS battery.Question 3. Question :(TCO 10) When troubleshooting memory problems, you shouldrun msconfig.remove all newly installed memory modules.perform a loop back the memory configuration utility.Question 4. Question :(TCO 10) If BIOS does not recognize a newly installed hard drive, you shouldcheck msconfig utility.ensure the memory is properly seated.verify that the power cable has been properly attached.gently tap the hard drive to reseat the heads.Instructor Explanation: Andrews, Troubleshooting Hard Drives, Ch. 8, p. 374Points Received: 4 of 4Comments:Question 5. Question :(TCO 10) If a newly installed I/O device is not working, you shouldmake sure the I/O card is seated properly.remove the card while the computer is powered up.remove the card while the computer is plugged in.automatically suspect that the I/O port may be faulty.Question 6. Question :(TCO 10) If a DVD drive is not recognized by the system, you shouldcheck the power and data cord connections.gently tap the DVD drive to loosen any stuck parts.use msconfig to properly set up the drive.move the drive to another bay.Question 7. Question :(TCO 10) The computer will not power up. There are no lights or fans. What steps should you take to troubleshoot the problem?Add additional memory.Install a larger disk drive.Check if the cables are installed correctly.Check to ensure that the power supply switch is in the on position, check to ensure the power supply is plugged in, ensure there are no loose internal connections, test the output of the power supply to see if it is in spec, and replace the power supply with a known “good” supply to see if the problem is solved.Question 8. Question :(TCO 10) When troubleshooting a network problem, you should firstcheck the network neighborhood.check the device manager to ensure the NIC card is another computer.check the TCP/IP settings.Question 9. Question :(TCO 10) Laptops are designed today to allow easyreplacement of broken LCD panels.replacement of faulty motherboards.replacement of wireless NIC Cards.replacement of broken keyboards.Comments:Question 10. Question :(TCO 10) When troubleshooting printer problems, you should considerthe printer itself.PC memory problems.power supply wattage problems.hard drive errors.

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