1. Which of the following input/output functions are handled by an operating sys
ID: 3647553 • Letter: 1
Question
1.Which of the following input/output functions are handled by an operating system? (Choose all that apply.)
A) retrieving data from a DVD
B) communicating with a network interface card
C) handling output to a printer
D) handling communications via a digital modem
2.
Your computer holds two hard drives and one of the drives has failed. After you install a new hard drive that is faster and larger than the old one, the computer operating frequently displays error messages that the drive is not ready. What should you do first??
A) send back the new hard drive for one that is the same size as the original drive
B) contact the drive manufacturer to be sure the hard drive is digitally signed
C) contact the drive manufacturer for the latest device driver that addresses problems for that drive
D) set a dip switch on the hard drive so that it operates at the lowest speed until the operating system can recognize it, and then reset the dip switch
3.
The large bank where you work uses an older mainframe to make a customer service database available for complex reports and queries about customer profiles. When 12 users run large reports on the mainframe at the same time, this is an example of which of the following?
A) batching
B) interfacing
C) overload
D) time-sharing
4.
The interim release of Windows Server 2008 is called _______.
5.
Microsoft's first multitasking operating system is _________ .
6.
The enhanced Print Management Console release in Windows Server 2003 R2 allows for: (Choose all that apply)
A) remote installation of network printers
B) ability to view general printer information
C) remotely diagnose a printer problem
D) ability to turn printer on and off remotely
7.
Windows 2000 was a significant rewrite of the Windows 98 kernel. True or False?
A) True
B) False
8.
Probably the most exciting feature introduced by Microsoft in Windows 95 was called ________________.
A) Active Directory
B) The Registry
C) Plug and Play
D) Multitasking
9.
A virtual private network (VPN) is:
A) a standalone virtual network
B) a virtual network residing within one computer
C) a private network that is like a tunnel through a larger network
D) a network that can only be observed from the outside on rare occasions
10.
Looking at Windows Server 2008 R2, which of the following statements apply: (Choose all that apply)
A) Released in both a 32-bit and 64-bit version
B) Shares same core operating system with Windows Vista
C) Available in seven versions
D) integration features with Windows XP and Windows Vista
11.
The ________ bus is used to keep the CPU informed of the status of resources and devices connected to the computer.
12.
Hyper-Threading Technology enables two separate processors to appear to the operating system as a single processor. True or False?
A) True
B) False
13.
The first widely used personal computer CPU was manufactured by Intel and their model number was: a. 68040 b. 80286 c. 8086 d. 8088
A) 68040
B) 80286
C) 8086
D) 8088
14.
Mobile phones around the world use CISC processors. True or False.
A) True
B) False
15.
Manufacturers rate their CPU speeds based on the _____________________. (Choose all that apply)
A) external clock speed
B) pipelining speed
C) internal clock speed
D) core speed times the number of cores
16.
An EPIC CPU design:
A) evolved from the CISC processor
B) was created in a joint project between Apple and IBM
C) allows a single processor to execute 20 or more operations at a time
D) uses a companion chip with a built-in compiler
17.
Instruction pipelining is a processing technique that allows the processor to operate on one instruction at a time with the pipeline keeping the instructions in order?
A) True
B) False
18.
A specialized piece of hardware call the _________ predicts what data will be needed and makes it available in cache before it is needed.
19.
Multicore processors _____________________. (Choose all that apply)
A) have two or more cores such as dual-care and quad-core.
B) are able to perform multiple instructions at a time in each core.
C) refers to the number of CPUs in your system.
D) execute basic instructions on multicores like reading data from memory or sending data to the screen
20.
One way to improve the performance of a Web server that is often slow is to upgrade to a processor that has a large amount of fast L2 cache, or a combination of L1, L2, and L3 cache. True or False?
A) True
B) False
21.
A CPU with an external clock speed of 2 GHz and a 64-bit data bus could transfer as much as _____GB per second.
A) 8 GB
B) 16 GB
C) 64 GB
D) None of the above
22.
Multithreading is the ability to run _______ processes, known as threads, at the same time. (Choose all that apply)
A) two
B) one
C) three
D) four
23.
AMD manufacturers which of the following chips. (Choose all that apply)
A) Atom
B) Duron
C) Xeon
D) Phenom
24.
Windows Server 2003 R2 is a(n) _________ release of the server operating system.
25.
Press the _______ key to enable you to boot a Macintosh computer from an installation DVD.
26.
Windows Server 2003 uses the _______ backup tool which is not compatible with the Windows Server Backup tool.
27.
The dump and tar commands in Linux distributions are used to ________ files.
28.
True or False? All hard drives have the same number of platters, heads, and tracks.
A) True
B) False
29.
Your assistant is attempting to configure a modem in Linux. When he types minicom at the command line and presses Enter, he does not see any options for configuring the modem. What might be the problem? (Choose all that apply.)
A) He needs to type minicom
Explanation / Answer
1. Which of the following input/output functions are handled by an operating system? (Choose all that apply.) C) handling output to a printer 2. Your computer holds two hard drives and one of the drives has failed. After you install a new hard drive that is faster and larger than the old one, the computer operating frequently displays error messages that the drive is not ready. What should you do first?? B) contact the drive manufacturer to be sure the hard drive is digitally signed 3. The large bank where you work uses an older mainframe to make a customer service database available for complex reports and queries about customer profiles. When 12 users run large reports on the mainframe at the same time, this is an example of which of the following? C) overload 4. The interim release of Windows Server 2008 is called _______. 5. Microsoft's first multitasking operating system is _________ . 6. The enhanced Print Management Console release in Windows Server 2003 R2 allows for: (Choose all that apply) D) ability to turn printer on and off remotely 7. Windows 2000 was a significant rewrite of the Windows 98 kernel. True or False? B) False 8. Probably the most exciting feature introduced by Microsoft in Windows 95 was called ________________. B) The Registry 9. A virtual private network (VPN) is: C) a private network that is like a tunnel through a larger network 10. Looking at Windows Server 2008 R2, which of the following statements apply: (Choose all that apply) B) Shares same core operating system with Windows Vista 11. The ________ bus is used to keep the CPU informed of the status of resources and devices connected to the computer. 12. Hyper-Threading Technology enables two separate processors to appear to the operating system as a single processor. True or False? A) True B) 13. The first widely used personal computer CPU was manufactured by Intel and their model number was: a. 68040 b. 80286 c. 8086 d. 8088 A) B) C) 8086 D) 14. Mobile phones around the world use CISC processors. True or False. B) False 15. Manufacturers rate their CPU speeds based on the _____________________. (Choose all that app B) pipelining speed 16. An EPIC CPU design: C) allows a single processor to execute 20 or more operations at a ti 17. Instruction pipelining is a processing technique that allows the processor to operate on one instruction at a time with the pipeline keeping the instructions in order? B) False 18. A specialized piece of hardware call the _________ predicts what data will be needed and makes it available in cache before it is needed. 19. Multicore processors _____________________. (Choose all that apply) D) execute basic instructions on multicores like reading data from memory or sending data to the screen 20. One way to improve the performance of a Web server that is often slow is to upgrade to a processor that has a large amount of fast L2 cache, or a combination of L1, L2, and L3 cache. True or False? A) True 21. A CPU with an external clock speed of 2 GHz and a 64-bit data bus could transfer as much as _____GB per second. C) 64 GB 22. Multithreading is the ability to run _______ processes, known as threads, at the same time. (Choose all that apply) A) two B) C D 23. AMD manufacturers which of the following chips. (Choose all that apply) C) Xeon 24. Windows Server 2003 R2 is a(n) _________ release of the server operating system. 25. Press the _______ key to enable you to boot a Macintosh computer from an installation DVD. 26. Windows Server 2003 uses the _______ backup tool which is not compatible with the Windows Server Backup tool. 27. The dump and tar commands in Linux distributions are used to ________ files. 28. True or False? All hard drives have the same number of platters, heads, and tracks. B) False 29. Your assistant is attempting to configure a modem in Linux. When he types minicom at the command line and presses Enter, he does not see any options for configuring the modem. What might be the problem? (Choose all that apply.) B) He must type miniconfig and press Enter. 30. A new employee on your staff has been explaining to a group of computer users that digital modems use modulation/demodulation to convert digital signals to carrier signals on computer lines. What is your reaction? (Choose all that apply. C) You share with the group that digital modems use octal signals for communications. 31. For which operating system would you use Network Connection tool to configure modems? (Choose all that apply.) A) UNIX / Linux 32. One of your customers is having trouble because modem communications seem to pause unexpectedly and then start again. Which of the following would you try first? (Choose all that apply.) C) Change the modem’s speed to 24 Kbps because 56 Kbps is too fa 33. Which of the following are security features in a wireless environment? (Choose all that apply.) C) Firewall 34. _________________________ is a basic but important form of error correction used by modems. (Choose all that apply.) B) Start bit/ stop bit error correction 35. You have purchased a satellite system for your Internet access. It worked great for a little while and then it slows down. You experience delays in screen displays and then they display quickly. What might be the problem? (Choose all that apply.) D) Signal strength of user’s equipment 36. You’ve purchased a cable modem from a friend who no longer needs hers. When you set it up, it does not properly communicate on your cable network. Which of the following is a likely explanation of the problem? (Choose all that apply.) B) The cable modem you purchased has more channels than are available from your cable provider. 37. Which of the following operating systems cannot be used on an Ethernet network? C) Linux 38. When a network backbone is designed, which of the following speeds might be built into the design of the backbone? (Choose all that apply.). D) 100 Gbps 39. Carrier sense multiple access with collision detection is a transmission control method used on which kind of network D) Unswitched cloud 40. You are in the store perusing wireless devices and notice that most of the boxes show 802.11n. What is the native transmission speed of 802.11 C) 100 – 300 Mbps 41. Windows operating systems use ________ the network driver specification. 42. Your small organization has just set up a network connecting Windows 7 and Mac OS X workstations. You recommend setting up a Windows Server 2008 server from which to share files. However, the manager of customer services complains in a meeting that his Mac OS X workstation won’t be able to access Windows-based files. What is your response? D) Mac OS X systems cannot access Windows Server 2008, so the organization should also purchase a Mac OS X server. 43. What happens when you execute chmod 0755 calc.c, where calc.c is a calculator program on a Red Hat Enterprise Linux server? (Choose all that apply.) C) Only nongroup members can execute the program 44. Which of the following are reasons why networks exist? (Choose all that apply.) B) Account sharing 45. Kerberos is an example of a(n) ________________ on a Windows Server 2008. (Choose all that apply.) D) account policy 46. You are in charge of a group of server administrators who manage servers for an organization that uses Active Directory and has multiple domains and trees. What type of Windows Server 2008 security groups might you set up to simplify security access for the server administrators across all domains and trees? C) A universal group that contains access to resources in all domains and a global group of all server administrators’ user accounts. 47. After you start your Windows 7 computer in the morning, you attempt to access your organization’s network to open an inventory program, but you don’t seem to be able to make a network connection. Which of the following commands enables you to test your computer’s ability to connect to the network? A) find net 48. As you are examining the contents of the Windows directory in Windows 7, which of the following are subdirectories you would expect to find? (Choose all that apply.) D) system32 49. Your organization’s Windows Server 2008 server has been running a little slow and you decide to check the virtual memory configuration. The server has 8 GB of memory. What should the initial size of the paging file be set at in terms of MB? B) 6,442 MB 50. How can you purge a file in Mac OS X Snow Leopard? D) Mac OS X files are always purged as soon as they are deleted.
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