Test
COMP A+
Este test tiene tiempo límite, así que se abre en el reproductor de siempre.
Preguntas del test (100)
1Which of the following IP addresses would a technician see if a computer is connected to a multifunction network device and is attempting to obtain an IP address automatically but is not receiving an IP address from the DHCP server?
- A172.16.10.10
- B192.168.0.10
- C192.168.10.10
- D169.254.10.10
280mm and 120mm are common sizes for what type of PC component?
- AMemory modules
- BCase fans
- CHeat sinks
- DCPUs
3What is the total number of devices that can be daisy-chained to an IEEE 1394 port?
- A255
- B127
- C15
- D63
4What does a yellow exclamation point next to a device in the Device Manager indicate?
- AThe driver is not digitally signed.
- BThe device is disabled.
- CA driver is not properly installed for this device.
- DThe device driver needs to be upgraded.
5Beep codes are generated by which of the following?
- APOST
- BCMOS
- CWindows
- DRTC
6How should you apply spray cleaner to a monitor?
- ASpray the cleaner on a clean, lint-free cloth first.
- BSpray evenly on the monitor.
- CSpray the cleaner on the top of the monitor and wipe down.
- DSpray the cleaner directly on the monitor screen.
7Which bus slot provides the highest video performance?
- ASCSI
- BPCIe
- CAGP
- DPCI
8Which of the following indicates that a printer is network-ready?
- AA USB connector
- BAn RJ45 jack
- CAn SCSI connector
- DAn RJ11 jack
9You just turned off a printer to maintenance it. What should you be careful of when removing the fuser?
- AThe fuser being wet
- BThe fuser releasing toner
- CThe fuser being fragile
- DThe fuser being hot
10Where is the memory controller located in a Core 2 Duo system?
- AWithin the PCIe controller
- BOn memory
- CWithin the chipset
- DOn the CPU
11Which of the following connectors is used for musical equipment?
- AHDMI
- BDVI
- CMIDI
- DDisplayPort
12Although not used as often as a Phillips screwdriver, this tool is sometimes used to remove screws from the outside of a computer case or from within a laptop.
- AMonkey Wrench
- BPilers
- CChannel lock
- DTorx Wrench
13What is the main advantage of selecting a 64-bit operating system over a 32-bit operating system?
- AThe ability to access more than 4 GB of RAM
- BThe ability to use unsigned drivers
- CThe ability to run multiple 16-bit programs in separate memory spaces
- DThe ability to use software-based data execution prevention (DEP)
14Moving your CPU’s speed beyond its normal operating range is called _____________
- AOverclocking
- BOverpowering
- COverspeeding
- DOverdriving
15Which port is typically known as a serial port?
- ALPT1
- BCOM1
- CSCSI
- DDVI
16What is the most important piece of information needed to connect to a specific wireless network?
- AMAC Address
- BSSID
- CAdministrator password
- DChannel
17Which password is used in the BIOS (CMOS) to prevent end users from accessing the BIOS contents?
- ASupervisor
- BAdministrator
- CUser
- DLocal
18Why would the display on a laptop get dimmer when the power supply from the AC outlet is disconnected?
- ASecurity settings on the laptop.
- BTo operate properly, laptop displays require an alternating current power source.
- CThe laptop cannot use full brightness when on battery power.
- DPower management settings on the laptop.
19Which tool should always be used when working on the inside of the computer?
- AScrewdriver
- BMultimeter
- CAntistatic strap
- DCordless drill
20What are advantages of using the Dynamic Host Configuration Protocol (DHCP)? (Select the two best answers.)
- AComputers can automatically get new addressing when moved to a different network segment.
- BIP addresses can be managed from a central location.
- CThe hosts file on the computer can be validated for proper entries.
- DMedia access control addresses can be changed.
21On a laptop, which of the following would most likely be a pointing device?
- ATouch Pad
- BUSB Mouse
- CPS/2 Mouse
- DSerial Mouse
22Which of the following storage technologies is used by traditional hard disk drives?
- AOptical
- BImpact
- CMagnetic
- DSolid-state
23On which type of computer is RAM the most important?
- AHTPC
- BGaming PC
- CVirtualization workstation
- DAV workstation
24A client brings in a printer that is giving a paper-feed error. What is the most likely cause?
- AThe paper tray
- BThe separation tab
- CThe pickup rollers
- DThe developing rollers
25Which of the following is the default port for HTTPS?
- APort 80
- BPort 443
- CPort 25
- DPort 143
26What is the maximum distance at which a Class 2 Bluetooth device can receive signals from a Bluetooth access point?
- A5 meters
- B10 meters
- C1 meters
- D100 meters
27Which of the following form factors does a VGA connector comply with?
- ARG-6
- BmicroATX
- C8P8C
- D15-pin D shell
28You and a co-worker are running network cables above the drop ceiling. The co-worker accidentally touches a live AC power line and is thrown off the ladder and onto the ground. He is dazed and can’t stand. He is no longer near the AC power line. What should you do first?
- ACall 911
- BApply CPR
- CCut the power at the breaker.
- DMove the co-worker farther down the hall.
29A customer reports that an optical drive in a PC is no longer responding. What question should you ask first?
- A“Have you been to any inappropriate websites?”
- B“What has changed since the optical drive worked properly?”
- C“Did you log in with your administrator account?”
- D“What did you modify since the optical drive worked?”
30Which device can store a maximum of 1.44MB on a removable disk?
- ACD-ROM
- BCompact Flash
- CROM
- DFloppy Drive
31What wireless networking standard operates at 5GHz only?
- A802.11a
- B802.11g
- C802.11n
- D802.11b
32What is the PC equivalent of FireWire?
- AIEEE 1394
- BIEEE 1284
- CISA
- DUSB
33Which type of RAM has a peak transfer of 12,800 MB/s
- ADDR2-800
- BDDR2-1600
- CDDR3-800
- DDDR3-1600
34Which type of printer uses a print head, ribbon, and tractor feed?
- ALaser
- BInkjet
- CThermal
- DImpact
35What is a possible symptom of a failing CPU?
- ABIOS reports low temperatures within the case.
- BCPU is beyond the recommended voltage range.
- CComputer won’t boot.
- DSpyware is installed into the browser.
36Which of the following cable types is not affected by EMI but requires specialized tools to install?
- ACoaxial
- BCat 6
- CFiber optic
- DSTP
37A computer you are working on has a lot of dust inside it. How should you clean this?
- AUse a vacuum to clean up the dust.
- BUse compressed air to remove the dust.
- CDisassemble the power supply and remove the dust.
- DUse a surface dust cleaning solution.
38Setting an administrator password in the BIOS accomplishes which of the following?
- APrevents a user from reading e-mail
- BPrevents a virus from infecting the MBR
- CPrevents an attacker from opening the case
- DPrevents a user from rearranging the boot order
39Which function is performed by the external power supply of a laptop?
- AStores power
- BConverts AC power to DC power
- CIncreases voltage
- DConverts DC power to AC power
40Which type of cable has only two twisted pairs?
- AFiber
- BCoaxial
- CUTP
- DPOTS line
41How many pins would you see in a high-quality printhead on a dot matrix printer?
- A35
- B24
- C8
- D15
42When it comes to computer case form factors,which of the following provides the most room for effective cooling?
- AmicroATX
- BITX
- CBTX
- DATX
43A co-worker is traveling to Europe and is bringing her computer. She asks you what safety concerns there might be. What should you tell her?
- ACheck for a compatible power adapter for that country.
- BThe computer is not usable in other countries.
- CUse a line conditioner for the correct voltage.
- DCheck the voltage selector on the power supply.
44What is an LCD display’s contrast ratio defined as?
- ADisplay resolution and brightness
- BPower savings
- CThe darkest and lightest outputs
- DPower consumption
45Which of the following tools can protect you in the case of a surge?
- AVoltmeter
- BAntistatic Strap
- CAntistatic Mat
- DTori Wrench
46What connector can have audio and video pass through it?
- AVGA
- BDVI
- CHDMI
- DRBG
47While you are working on a computer at a customer’s home, the customer informs you that he needs to leave for about 10 minutes and that his 8-year-old son can help you with anything if you need it. What should you do?
- ATell the customer that you are not responsible for the child.
- BTell the customer that an adult must be home while you work.
- CTell the customer that the child must be removed.
- DTell the customer to get back home as soon as possible.
48Which device limits network broadcasts, segments IP address ranges, and interconnects different physical media?
- ARouter
- BFirewall
- CWAP
- DSwitch
49You just upgraded the CPU. Which of the following can make your computer shut down automatically after a few minutes?
- AWrong voltage to the CPU.
- BIncorrect CPU has been installed.
- CWrong CPU driver.
- DThe CPU has overheated.
50Which of the following power connections might be used by hard drives? (Select the two best answers.)
- AMolex
- BBerg
- C8-pin
- D15-pin
- E7-pin
51Which of the following is a valid IPv4 address for a network host?
- A172.17.58.254
- B127.0.0.1
- C255.10.15.7
- D169.254.0.0/16
52If a lot of data is flowing through a network card, what should the activity light look like?
- ARapid, erratic flashing
- BSolid yellow
- CUnlit
- DSolid green
53You want to upgrade memory in your computer. Which of the following is user-replaceable memory in a PC?
- ACMOS
- BDRAM
- CSRAM
- DBIOS
- EROM
54You are working on a very old printer, and it starts to smoke. What should you do?
- ACall 911
- BCall maintenance
- CUnplug the printer
- DTell the printer it is bad to smoke
- ETurn off printer
55Which technology has the fastest data transfer rate?
- A802.11g
- B802.11n
- C802.11a
- D802.11b
56You are asked to fix a problem with a customer’s domain controller that is outside the scope of your knowledge. What action should you take?
- AAssure the customer that the problem will be fixed very soon.
- BLearn on the job by trying to fix the problem.
- CTell the customer that the problem should be reported to another technician.
- DHelp the customer find the appropriate channels to fix the problem.
57Of the following, which IP address is private?
- A169.255.10.41
- B192.169.0.1
- C172.31.1.1
- D11.58.254.169
58How should you remain in the face of adversity?
- ACertain
- BDecisive
- CPostive
- DWavering
59What is the local loopback IPv6 address?
- AFE80::/10
- B127.0.0.1
- C192.168.0.0
- D::1
60Which of the following statements is correct concerning IPv6 addresses?
- AThey are supported by all routers.
- BThey represent addressing using 128 bits.
- CThey require fiber-optic connections.
- DThey cannot be used with IPv4.
61What operating CPU temperature is typical?
- A72° Celsius
- B72° Fahrenheit
- C60° Fahrenheit
- D60° Celsius
62You need to install a printer that can be used to print payroll checks on paper forms that have a carbon backing. Which printer technology should you select?
- AThermal
- BInkjet
- CImpact
- DLaser
63In current motherboards, which memory bus width can be accomplished by using the dual channel technology?
- A128-bit
- B256-bit
- C448-bit
- D64-bit
64Which of the following best describes a hub?
- ADetermines the best route to transmit data
- BBroadcasts data to specific network devices
- CBroadcasts data to all network devices
- DInspects traffic and accepts or declines transmission
65Which of the following tools could a person use to test an AC outlet? (Select the two best answers.)
- APSU tester
- BLoopback plug
- CReceptacle tester
- DMultimeter
66What maximum data transfer rate is IEEE 1394b capable of?
- A400 Mbps
- B480 Mbps
- C800 Mbps
- D5 Gbps
- E12 Mbps
67Which of the following is not a configuration that can be made in the BIOS?
- AInstall drivers
- BBoot sequence
- CIntrusion detection
- DOverclocking
- ETemperature thresholds
68Which of the following traits and port numbers are associated with POP3?
- ASends outbound e-mail on port 25
- BReceives inbound e-mail on port 25
- CSends outbound e-mail on port 110
- DReceives inbound e-mail on port 110
69When working on a computer, which of the following should you disconnect to prevent electrical shock? (Select the two best answers.)
- AMouse
- BPrinter
- CTelephone Cord
- DPower Cord
70Which of the following controls the connection between the CPU and the PCIe x16 expansion slot?
- ANorthbridge
- BMemory controller
- CMemory
- DPower supply
71What is the recommended method for handling an empty toner cartridge?
- ARefill it
- BRecycle it
- CIncinerate it
- DThrow it away
72Which type of cable would you use to connect a laptop directly to a PC?
- AParallel Cable
- BCat 5e patch cable
- CCat 5e crossover cable
- DIEEE 1394 cable
73A customer experiences a server crash. When you arrive, the manager is upset about this problem. What should you do in this scenario?
- ARefer the customer to your supervisor
- BAvoid the customer and get the job done quickly.
- CTake the customer out for a cup of coffee.
- DStay calm and do the job as efficiently as possible.
74Which of the following types of printers uses toner?
- AThermal
- BLaser
- CImpact
- DInkjet
75As you are servicing a manager’s PC at your company, you run across a list of names of employees who are supposedly about to be let go from the company. Some of these people are co- workers. What should you do?
- AYell at t he manger for having that list out
- BTurn the sheet over
- CAct as if you never saw it
- DIn secret, tell everyone who was on the list.
76In order to perform a network installation of Windows, which of the following must be supported by the computer’s network interface card?
- APCI
- BPXE
- CPnP
- DPCL
77In which of the following slots would you place an 8x video card?
- APCIe
- BAMR
- CPCI
- DAGP
78Which of the following is the newest type of mouse connection?
- AUSB
- BParallel
- CSerial
- DPS/2
79How can you reduce the chance of ESD? (Select the three best answers.)
- AUse an antistatic mat.
- BWork in a carpeted area.
- CLower the humidity.
- DRaise the humidity.
- EUse an antistatic strap.
- FRaise the temperature.
80Which of the following is a unique characteristic of a dual-core processor versus a single-core processor?
- AA dual-core processor has several unique cores, with the same cache, on two different chips.
- BA dual-core processor requires more RAM to function than a single-core processor.
- CA dual-core processor has two cores, with separate caches, on the same physical chip.
- DA dual-core processor uses higher voltage than a single-core processor.
81Which of the following devices is the least likely to be replaced on a laptop?
- AKeyboard
- BCPU
- CPC Card
- DRAM
82If your “bandwidth” is 1000 Mbps, how many bits are you sending/receiving? (Select the two best answers.)
- A1 gigabit per second
- B1,000,000,000 bits per second
- C1000 bits per second
- D100,000,000 bits per minute
83Which of the following is an example of a broadband connection?
- AIEEE 802.3
- BEthernet
- CClient/Server
- DCable Interent
84Which of the following can send data the farthest?
- ACoaxial
- BMulti-mode fiber
- CSTP
- DSingle-mode fiber
85You need to expand the peripherals of a computer, but the system doesn’t have enough ports. Which type of card should you install?
- ATV tuner card
- BModem
- CUSB card
- DNetwork adapter
86Which of the following is a typical speed of a SATA hard drive?
- A8 GB
- B3.1 GHz
- C7200 RPM
- D1000 Mbps
87Which of the following should you use to clean a monitor’s screen if you are not sure how to do so?
- AWater
- BBoric acid
- CIsopropyl alcohol
- DMild detergent
88Which of the following best describes the differences between a switch and a router?
- AA router broadcasts all data packets that are sent on the network, and a switch transmits data directly to the device.
- BA switch broadcasts all data packets that are sent on the network, and a router transmits data directly to the device.
- CA switch interconnects devices on the same network so that they can communicate, whereas a router interconnects one or more networks.
- DA switch interconnects one or more networks, where as a router interconnect devices on a network.
89Ray wants to install a new internal SATA hard drive in his comput- er. Which types of cables should he connect to the drive? (Select the two best answers.)
- A40-pin data cable
- B4-pin data cable
- C7-pin data cable
- D15-pin data cable
90A group of users in ABC Corp. needs to back up several gigabytes of data daily. Which of the following is the best media for this scenario?
- ADLT
- BDVD
- CExternal USB hard drive
- DDual-Layer DVD
91You are required to rip the contents of a CD to a compressed file format that can be read easily on PCs, Linux computers, or Macs. Which format should you select?
- A.MP3
- B.MOV
- C.AAC
- D.WMA
92You need to replace and upgrade the memory card in a smartphone. Which type of memory does the smartphone most likely use?
- ASD
- BCF
- CSSD
- DUSB flash drive
93Your organization relies heavily on its server farm for resources and is less reliant on the client computers. Which type of client computer does the organization most likely use?
- AThin client
- BVirtualization workstation
- CThick client
- DClient/Server
94What are the respective functions of the two corona wires in a laser printer? (Select the two best answers.)
- ATransfer toner from the drum to the paper
- BClean the drum
- CCondition the drum to be written to
- DFuse the toner to the paper
95Which of the following capabilities enables a printer to store multiple documents?
- ASpooling
- BPrinter driver
- CPrinter pool
- DBuffer
96While you explain a technical concept to a customer, what is the best action for you to take?
- AUse acronyms so that the customer feels comfortable about your knowledge.
- BSit next to the customer.
- CTell the customer to read the manual.
- DRecommend a training class.
97You are setting up a SOHO network with DSL. Which of the following devices should you place on the phone line so that the line can be shared with a phone and the DSL modem?
- ARouter
- BLine filter
- CHeat sink
- DCoax splitter
98One way to provide preventive maintenance to a hard drive is to do what?
- AInstall a second hard drive.
- BUpgrade the cache on the drive to improve performance.
- CKeep an area of airflow around the drive so that it doesn’t overheat.
- DIncrease the amount of RAM on the PC to increase the page file.
99After a blackout, the power comes back on, causing a surge to occur on all the computers and equipment in the office. Your co-worker’s laptop display doesn’t come on. However, if you look closely at the display, you can see that Windows is running, but very dimly. What could be the cause of this problem?
- AThe power supply has failed.
- BThe display driver has failed.
- CThe display is not getting power.
- DThe inverter has been shorted out.
100Which tool would you use to test a 24-pin ATX 12v power connector?
- AMultimeter
- BReceptacle tester
- CTorx wrench
- DTone and probe kit
Información
- Descripción
- Certificate Comp A+ Test sobre COMP A+, creado por Jessica Mason el 11/04/2016.
- Autor
- Jessica Mason
- Idioma
- English
- Visitas
- 0
- Etiquetas
- Valoración
- Aún sin valoraciones Valora este test