Brooklyn Technical High School Per
Brooklyn Technical High School Per. ________________ Name ___________________________
Computer Repair, Upgrade, Management & Maintenance Review 2 MP3
Audio:
1) If you have various programs that play audio files, what is an easy way to change the default program that plays your type of audio file?
A) Go to Device Manager and change the Sound Card properties
B) Start Programs Accessories, Entertainment, Sound Recorder
C) Start, Control Panel, Sound and Audio Devices
D) Right-Click on the audio file, Properties, then Change Program
2) How many speakers are in a Dolby Digital 5.1 Setup?
A) 5 speakers plus 1 subwoofer
B) Six speakers plus a subwoofer
C) Seven speakers plus a subwoofer
D) Eight speakers plus a subwoofer
3) Which of the following file formats can store a human voice most accurately?
A) MIDI B) WAV C) VOICE D) FM
4) Why do sound cards sometimes need two separate sets of I/O addresses and DMA channels?
A) To separate 8-bit and 16-bit sound
B) Each set creates different sounds for mixing
C) To support both the WAV and MIDI components of the sound card
D) No sound card does this
5) After installing a sound card, the system locks up when a parallel port tape backup is also used. What is the most likely problem?
A) IRQ Conflict B) DMA Conflict C) Defective LPT port D) Defective Tape Driver
6) Which of the following connectors supports 5.1 Sound?
A) Mini-Audio B) Composite C) S/PDIF D) DVI
7) The two most common built in sound formats are…
A) MPEG and MIDI B) WAV and MIDI C) WAV and MPEG D) MOD and WAV
8) What is the process by which computers capture (record) sounds waves into an electronic format?
A) Sampling B) Testing C) Playing D) Sounding
9) Which is the most famous Sound Card model?
A) Motorola Sound Creator B) Creative Labs Sound Blaster
C) Microsoft Wave Synthesizer D) Toshiba Tone Analyzer
10) What is the number of bits used to sample sound used for?
A) To create a log file
B) To capture the characteristics of the sound
C) To determine the size of the file
D) To determine the speed at which the sound is replayed.
11) Which sound capture is considered to be CD quality?
A) 144 KHz, 8-bit depth, and in stereo
B) 22.5 KHz, 16-bit depth and in stereo
C) 44.1 KHz, with 16-bit depth and in stereo
D) 44.1 KHz, with 16-bit depth and in mono
12) The granddaddy of all sound formats is PCM, which was developed to carry telephone calls over the first digital lines. The PCM format is used in PCs today. What is PCM better known as in PCs?
A) MP3 B) MIDI C) TONE D) WAV
13) The human ear can’t hear frequency levels at 44.1 KHz, so some sound quality can be eliminated, thereby compressing the sound file. There are programs that compress and decompress (codecs) the files. What is the most famous of these codecs?
A) WAV B) MIDI C) MP3 D) PCM
14) What can the program at right be used for?
A) To play sound files B) To play Solitaire
C) To play 2-player video games C) To Edit audio files
15) What is the bit rate of a CD quality MP3?
A) 24Kbps B) 96 Kbps C) 128 Kbps D) 320 Kbps
16) What is a MIDI file?
A) A file that records only midrange sounds
B) A file that stores all types of sounds, including human voice
C) A file that is equivalent to a WAV file
D) A file that tells the sound card what notes to play, how long, how loud and on which instruments.
17) Which sound file is the smallest (given that they play the same amount of time)?
A) WAV B) MP3 C) PCM D) MIDI
18) Which is Apple Computer’s proprietary sound format?
A) AAC B) ASX C) AU D) WMA
19) What is the 15-pin D-shaped connector on the sound card used for?
A) Microphone
B) CD Player
C) Speakers
D) Joystick or external MIDI device
20) The arrow is pointing to what part of the sound card?
A) The game converter
B) The Optical Drive connector
C) The sound card processor
D) The Microphone drum
21) What is the name of one of the connectors that connects your sound card to your CD-ROM drive?
A) MPC2 B) Line Out C) Line In D) SPDIF
22) In meters, what is the maximum length between two full-speed USB devices using 20-gauge shielded cables?
A) Six B) Five C) Three D) Two
23) If you want to enjoy your DVDs in full surround sound on your PC, you must purchase a full _________ speaker system
A) 2.1 B) 3.1 C) 4.1 D) 5.1
24) You have been called to install 2.1 speaker for a customer. Where on the sound card do you plug in the cable from the speakers?
A) Into the S/PDIF port
B) In the microphone port
C) In the Line In port
D) In the Front Out Port
25) If you connect the Front speakers to Front Out, the back speakers to Rear out and the center speakers to Center, and the subwoofer to all center or simply use the single connection the SPDIF In port, what speaker system have you set up?
A) 5.1 B) 3.1 C) 2.1 D) 4.1
26) What refers to the number of characteristics of a particular sound captured when sampling?
A) Sample rate B) Kilohertz C) Bit Depth D) Quality rating
27) All recorded sounds used in PCs today are derived from which format?
A) WAV B) Fraunhoffer C) MP3 D) PCM
28) What is the name of the extensions to DirectSound3D standard developed by Creative Labs?
A) EAX B) MP3 C) Positional Audio D) Reverberation
29) What is the name of the standard digital connection that replaces many analog connections on some sound cards?
A) CD audio connector B) AUX connector C) TAD connector D) S/PDIF connector
30) Which sampling rate would produce the highest quality sound?
A) 8 Hz B) 8KHz C) 128 Hz D) 128 KHz
31) What must be installed on your system to decode a sound file?
A) The proper codec
B) Sound application software C) Speakers
D) Universal Audio Cables
32) To hear music from the CD-ROM drive, you would connect the audio cable from the CD-ROM drive to which connector on the sound card?
A) Line In
B) Mic In
C) TAD
D) CD_IN
33) When you install a sound card, what drivers should you install?
A) The ones Windows provides
B) The ones that came with the sound card
C) No drivers are needed for a sound card to work
D) Go to CMOS and enable sound. That is all you need to do
34) After installing a sound card and installing the drivers, what should you do next?
A) See if the uninstall works
B) Put the speaker at maximum volume to test sound card
C) Disable the onboard video.
D) Check the manufacturer’s website to see whether your sound card has any driver updates.
35) In the external USB sound card at right, what is the DIN jack used for?
A) Speaker
B) Microphone
C) Game port
D) Video connection
36) After installing the sound card, what is the purpose of going to Device Manager?
A) To install the driver
B) To remove the onboard sound card
C) To make sure everything installed correctly
D) To raise the volume of the sound card.
37) How can we get to the Sounds and Audio Devices Properties Windows at right?
A) In Start Programs Accessories Entertainment
B) In Sounds and Audio Devices Control Panel Applet
C) In the Volume Control Program
D) Through Windows Media Player Properties
38) A customer calls tech support and you answer. The customer states that she can’t hear sound. What would you do first to help out the customer?
A) Ask if she has a sound card installed
B) Ask what time she turned on the computer
C) Ask if she has the volume raised on the speakers and through Windows
D) Ask her the model number of the sound card.
39) Which of the following are valid audio file formats?
A) ASF, WMA, ASP B) PCI, MP3, ASX C) WAV, PCM, AU D) MID, MPEG, AVI
40) Which term describes stereo speakers in a 2.1 sound system?
A) Woofers B) Satellites C) Subwoofers D) Twins
41) Which of the speaker set up options listed should you select if you have 2 speakers that connect to your sound card.
A) Desktop Stereo speakers
B) Quadraphonic speakers
C) Surround Sound Speakers
D) 5.1 Surround sound speakers
42) What is the Sounds tab in the Window below used for?
A) To control the Volume
B) To Access DirectX controls
C) To add customized sounds to Windows events, such as ShutDown
D) To see the Codecs installed on your computer
Video:
43) What provides illumination for LCD Monitors?
A) Backlights B) Inverter C) Lamp D) LCD Panel
44) Which statement best describes the difference, if any, between CRT and LCD resolution?
A) The CRT has a single native resolution; LCDs have no native resolution
B) The CRT has three native resolutions; LCDs have no native resolution
C) The CRT has no native resolution; LCDs have three native resolutions
D) The CRT has no native resolution; LCDs have a single native resolution
45) Which typically uses more wattage?
A) CRT B) DVI C) LCD D) VGA
46) Some Tech by the water cooler kept speaking about raster lines and painting the screen. What could she have been referring to?
A) Horizontal Refresh Rates B) Video Drivers C) Phosphors D) An art project involving an old door
47) A set of three phosphors – red, green, and blue – on the monitor is called a _________
A) The shadow mask B) Resolution C) A triad D) A phosphor dot
48) The definition of dot-pitch is ______
A) The diagonal distance between the holes of the shadow mask
B) The physical size of the pixels
C) The size of a triad
D) The diagonal distance between phosphorous dots of the same color
49) Raphael wants to run his new 19-inch monitor at 1280x1024 with true color (24 bit, 16.7 million colors). He has an older 1MB ATI video card. What do you say to him?
A) Sorry, 19-inch monitors can’t display that high of a resolution
B) Give it up, Raphael! You need a video card with a lot more RAM
C) Cool! Invite me to your cubicle for Quake III
D) It’s not going to work – no monitor can do that resolution
50) Monitor resolution is shown as the number of ___________
A) Horizontal triads times the number of vertical triads
B) Horizontal pixels times the number of vertical pixels.
C) Horizontal phosphor dots times the number of vertical phosphor dots
D) Horizontal refresh lines times the number of vertical refresh lines.
51) Which are some of the changes you can make to a modern monitor?
A) Pincushioning B) Brightness C) Contrast D) all of the above
52) What is the standard VGA resolution?
A) 640x350 B) 640x480 C) 800x600 D) 1024x768
53) What is the standard SVGA resolution?
A) 640x350 B) 640x480 C) 800x600 D) 1024x768
54) A monitor that scans every other line is known as a/an __________ monitor
A) Interlaced B) non-interlaced C) VGA D) HDTV
55) The smallest element on a monitor is known as a ________
A) Character B) Dot-pitch C) Diode
D) Pixel
56) A user wants to run the monitor at the 800x600 resolution with 16 million colors. What is the minimum amount of video RAM the user needs?
A) 2MB B) 4MB C) 8MB D) 16MB
57) Which of the following is the best dot pitch for a 17” monitor?
A) .39 B) .51 C) .28 D) .26
58) WRAM is used on a
A) Modem B) Video Card C) Motherboard D) ATA controller
59) How much video RAM is needed to display 1024 by 768 at 24-bit color?
A) 1MB B) 4MB C) 8MB D) 512KB
60) The monitor is displaying in mostly green and not in normal colors. Which of the following could cause this?
A) The refresh rate is too fast B) The resolution is set too high
C) A pin on the connector is bent D) The drivers are installed incorrectly
61) A customer calls for support with a monitor problem, but can’t wait for a service technician. She describes the problem being no monitor signal, no screen saver, no hibernation, and she reports that she thinks it is the video card. The customer also mentions that she has 3 identical functioning systems in her office. Which of the items below could be switched with the same item in one of the functioning systems to try to eliminate the video card as the source of the problem?
A) The monitor B) The motherboard C) The video chip driver D) All flat ribbon cables.
62) What does a 28 dot pitch refer to in describing a monitor?
A) .28cm wide B) .28 mm wide C) .28cm apart D) .28 mm apart
63) A video resolution of 800 x 600 would constitute which video mode?
A) EGA B) VGA C) CGA D) SVGA
64) Which device would you plug into an AGP slot?
A) Hard Drive B) Serial Port C) Video Card D) External Storage Device
65) What best describes the time it takes CRTs electron beams to paint the screen from top to bottom in a monitor?
A) Dot Pitch B) Interlacing C) Video RAM D) Refresh Rate
66) How many pins are on a VGA connector?
A) 9 B) 15 C) 25 D) 50
67) A user complains that after a colleague used her computer, a larger than normal black border appeared around the edge of the Windows desktop. As a technician, what is the first logical question you would ask?
A) Have you adjusted the contrast? B) Has the operating system just been upgraded?
C) Have you checked to see if the video cable is lose D) Have you checked the monitor control settings
68) A customer’s Windows desktop appears distorted on her monitor. You want to ISOLATE the problem. What could you do?
A) Try another monitor B) Try another program C) Replace the power supply
D) Install additional video memory
69) What is the function of an energy star compliant monitor?
A) Used only with fast processors
B) Same as standard monitor type
C) Switches to low power status when signal does not change
D) Consumes less power than other monitors when powering up.
70) What type of CRT is 1024 x 768 in 8-bit (256-color) mode?
A) VGA B) XGA C) SVGA D) CGA
71) Your monitor screen displays pictures mixed with a light green color. What could be the problem?
A) A pin is bent on the video cable connector B) The cable has been attached upside down
C) The cable is reversed D) The cable is missing
72) What is the standard aspect ratio for Wide Screen Movies?
A) 4:3 B) 10:6 C) 16:9 D) 16:10
73) You switch your PC on and get no display. You are sure the monitor is OK. Which order would you follow for troubleshooting this problem?
A) Check that monitor cable is correctly installed onto the system unit, monitor is turned on, and brightness is turned up.
B) Check that PC and monitor are plugged in, check that monitor brightness is turned up, check that PC fan is running
C) Check PC supply voltages, replace video card, replace CPU
D) Check that everything is plugged in, replace system board.
74) In what situation would you see the following configuration?
A) In a dual computer setup
B) In a dual monitor setup
C) In a dual user setup
D) In a game duel
Input/Output:
75) Tom has 7 bus-powered instead of self-powered devices connected to his system. What situation could result?
A) None, you can have up to 127 devices connected to the USB bus.
B) Only 1 device can work at a time.
C) On each port, only 3 devices can be bus-powered. The others have to be self-powered.
D) Devices might work only some of the time.
76) What is the speed of USB 2.0 (Hi-Speed USB)?
A) 1.5 Mbps B) 12 Mbps C) 480 Mbps D) 800Mbps
77) I have an older USB 1.1 (Full-Speed) device connected to a USB 2.0 port. What will be the transfer speed?
A) It will transfer at the slower 1.1 speed. B) It will transfer at the higher 2.0 speed.
C) It will transfer at a speed in the between 1.1 and 2.0
D) They are not compatible at all.
78) The following bar code reader plugs into your keyboard port. Where would you plug the keyboard?
A) Into the mouse port. B) Into the VGA port
C) Into the media port D) Into the keyboard port E) Into the bar code reader
79) How many devices can each USB Host Controller support?
A) 63 B) 127 C) 32 D) 4
80) What type of flash memory card is currently the most popular?
A) Compact Flash B) Memory Stick C) Secure Digital D) Smart Media
81) A serial port sends and receives serial data. What device translates that serial data into parallel data for the computer to use?
A) Host Controller B) IC-USB C) Serial Port D) UART
82) What happens to bus speed and power usage when you plug multiple devices into a USB hub?
A) The bus speed stays constant, but power usage increases
B) The bus speed increases because each device brings a little burst; power usage increases
C) The bus speed decreases because all devices share the same total bandwidth; power usage increases
D) The bus speed decreases because all devices share the same total bandwidth; power usage decreases
83) You take a tech call from a user who complains that she gets an error message, “Hub power exceeded”, when she plugs her new thumb drive into her USB keyboard’s external USB port. Worse, the device won’t work. What’s most likely the problem?
A) Her USB port is defective
B) She has a defective thumb drive
C) She plugged a Hi-Speed device into a Full-speed (low speed version) port
D) She plugged one too many devices into the USB hub
84) What is the fastest speed that Hi-Speed USB 2.0 can go?
A) 12 Mbps B) 120 Mbps C) 400 Mbps D) 480 Mbps
85) USB 1.1 devices can run at two speeds. What are the speeds?
A) 1 and 2 Mbps B) 1.5 and 12 Mbps C) 1.5 and 15 Mbps D) 12 and 48 Mbps
86) What is the maximum cable length for USB?
A) 1.2 meters B) 1.2 yards C) 5 meters D) 5 feet
87) Which end of the USB cable plugs into the PC?
A) A B) B C) Mini-A D) Mini-B
Optical Media:
88) Which of the following optical-disc suffixes indicates that the disc can be written to multiple times?
A) –ROM B) –R C) –RW D) –DL
89) Which optical disc format supports a data capacity of 25GB?
A) Double-sided, double-layer DVD+R
B) Single-sided, single-layer Blu-ray disc
C) Double-sided, single-layer DVD-R
D) Double-sided, single-layer DVD+R
90) How much data can a single layer of a standard DVD hold?
A) 2.88MB B) 2.88GB C) 4.7GB D) 25GB
91) What do optical drives use to change the characteristics of the storage medium?
A) Laser B) Magnet C) Liquid D) Resistor
92) How should you open the tray on a CD-ROM drive that doesn’t open with the eject button nor through the eject option via the OS?
A) Push the eject button harder B) Push in on the lower right corner door
C) Right-click the CD icon and click Eject D) Insert a paper clip into the CD drive eject hole
93) Which term describes the capability to burn files on a CD-R and then come back later and burn additional files?
A) Multi-burn B) Multi-session C) Multi-Drive D) Multi-buffer
94) When a CD is inserted, the AutoPlay feature of Windows looks for what file?
A) AUTOPLAY.INF B) AUTORUN.INF C0 AUTORUN.INI D) AUTORUN.EXE
95) A copy of A CD or DVD can be saved as what type of file?
A) ISO B) ISO-9660 C) INF D) CDDA
96) John purchased a new burnable CD and put it in his new CD-RW drive. He dumped about 620 MB of data on the disc, just to try it. After the burn, he viewed the contents of the disc and found he could read the data perfectly and that all 620MB copied over. When he tried to delete data on the disc, however, he received an error message that said the disc was full or write protected. What could be the problem? Choose the best answer.
A) The disc must be a 74-minute capacity disc.
B) The disc must be an 80-minute capacity disc.
C) He used a CD-RW disc rather than a CD-R disc.
D) He used a CD-R disc rather than a CD-RW disc.
97) Mary found the old CD-ROM that had her favorite casino games on it, but it was scratched on the bottom and her CD-ROM drive failed to read the CD. Cathy told her it was probably ruined. John told her it could still possibly be used. How is right?
A) Cathy is right. It is probably ruined
B) John is right. Getting a polishing kit and buffing out the scratches can probably salvage the CD
C) Neither is right. The CD was formatted for an older operating system.
D) Neither is right. Older CDs are write-protected
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