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Josh works in a computer repair store. Josh knows that asking open-ended questions is very important in determining the problem. Which choice below explains the importance? - correct answer ✔✔The customer can explain details such as what is happening and when the problem began. Andreius has had a lot of jobs come into his shop lately. He has had to put off fixing Mrs. Staley's computer because he is waiting on parts to fix it. What should he do when Mrs. Staley calls about her computer? - correct answer ✔✔Inform the customer of delays Claire notices that her newly ordered video card comes in an antistatic bag. What is the purpose of the antistatic bag? - correct answer ✔✔To protect the electronic component from static induced damage Dre wants to find a low-cost option for the operating system on a newly built computer system for his HVAC business. What type of licensing will he choose if he decides to use Linux for the operating system?
- correct answer ✔✔Open source license Drew just got hired for a large law firm. The firm is handling many of the top cases in the state. Drew's first assignment is to work on one of the leading lawyers computers. He notices a folder labeled with as "confidential." Drew keeps up with the latest news and loves to read. What should Drew do with this content? - correct answer ✔✔Respect the confidentiality of the information. Canvas is removing RAM from his computer and needs a safe place to store the modules while he completes the hardware changes. Where is the best place to put the memory to protect it from ESD? - correct answer ✔✔In an antistatic storage bag Jackie gets stopped by a user who is having trouble as he returns from lunch. Jackie does not have his equipment but he knows if he has to open the case, he can touch the chassis of the computer to ground himself. What does touching the chassis do? - correct answer ✔✔Touching the chassis equalizes the charge.
Seth is starting up a PC repair shop. When preparing to open the shop, he learns that he needs to have an SDS for every chemical in the workplace. What is the purpose of the an SDS? - correct answer ✔✔An SDS provides workers and others with handling information concerning a substance. Jimmy is upgrading his memory by replacing the existing memory modules with new ones. The old modules still work and he plans to add them to another PC. What should he do with the old memory until he is ready to install the modules? - correct answer ✔✔Place the modules in an anti-static storage bag Johnny knows that an ESD strap is essential in protecting electronic equipment. For which of the following repairs is an ESD strap NOT required? - correct answer ✔✔Replacing a monitor Cody found what he suspected to be illegal content on a computer he is servicing. He wants to document as much as he can about what he found and he knows to whom the computer goes next. What is a good first step in documenting his findings? - correct answer ✔✔Chain of custody form Will is a technician at a PC repair shop. He is instructed to repair a software problem in Windows that requires him to hunt through the file system. While doing his work he discovers a large collection of illegal content in the file system. After reporting the incident to management it was requested that he transfer the machine to the FBI. What type of form should be filled out before letting the machine go with someone else? - correct answer ✔✔Chain of custody ticket Phil works for a large corporation as a computer technician. Phil's current assignment is to upgrade memory in the marketing department. As Phil is making his rounds, he notices a file on the marketing manager's desk about the department's pay information. He always wondered what other people in the company were paid. What should Phil do? - correct answer ✔✔Close the file and do not view any of the information Kenyon is interviewing a customer about the problems that exist with the customer's computer prior to attempting to repair it. What is the best practice for Kenyon at this point in the repair process? - correct answer ✔✔Actively listening and taking notes from the customer Sylvia is starting up a computer repair shop with three employees. In working with her advisors in setting up the shop, she learns about a government agency called OSHA. What does this government agency do? - correct answer ✔✔Maintains rules and regulations for workplace safety.
Cindy works as a technician in a medium size company. As she is going to her office, another employee stops her and asks her to look as his PC. She decides she needs to re-seat the memory but she did not bring any of her protection. Which one of the following would work as ESD protection measure? - correct answer ✔✔Cindy should touch the power supply occasionally Charity is explaining to a customer the problems that existed with the customer's computer. She tells them "Your 2 TB HDD will not fit into your computer because the SATA interface is not compatible with the PATA connector on your MB." What mistake is Charity making while talking to the customer? - correct answer ✔✔Using acronyms or jargon Seth is building himself a new computer. He is looking at the various CPUs trying to decide which one to purchase. He has narrowed his search to two types with different CPU operating speeds. Which of the following refers to CPU operating speeds? - correct answer ✔✔Clock speed What was the first personal computer that was MS-DOS based? - correct answer ✔✔IBM PC What was the first commercially successful computer that ran a GUI (graphical user interface) that was also able to use a mouse? - correct answer ✔✔Macintosh Kenny is doing research on the history of the Intel microprocessors. Kenny wanted to know which Intel microprocessor was made for both the 32-bit internal bus and the 64-bit external bus? - correct answer ✔✔Pentium microprocessor Which computer characteristic deals with connecting more than one computer to be able to access more data, programs, storage and services? - correct answer ✔✔Resource Sharing Casey is trying to decide if her current laptop is sufficient for college. She is concerned with the microprocessor. She knows she has a 3rd generation Core processor with a clock speed of 2.9 GHz. What does the clock speed mean? - correct answer ✔✔How quickly a computer completes basic computations and operations Michael is working on his binary and hexadecimal code conversions. If Michael is given the number 18, what is the binary and hexadecimal code? - correct answer ✔✔00010010, 12
Which computer characteristic deals with the ongoing operation of a computer without dealing with failures? - correct answer ✔✔Reliability Adam is working on his binary and hexadecimal code conversions. If Adam is given the number 240, what is the binary and hexadecimal code? - correct answer ✔✔11110000, F Chandler is trying to distinguish between various computer types. Which of the following computers is composed of many high-performing computers working as a single system? - correct answer ✔✔Supercomputer Of the basic four functions common to all computers, which function consists of the CPU, main memory and controls the data? - correct answer ✔✔Processing Kim has been asked if the ASCII code is still used today. Which of the following is the best description for Kim to use? - correct answer ✔✔The ASCII is character code built for the letters, numbers and symbols on a keyboard. The ability to "extend your desktop," which consists of a separate desktop area that you can move your mouse over to, is accomplished by setting up which of the following? - correct answer ✔✔Multiple displays Janice is studying hard disk drive technologies. Which of the following technologies is used by traditional hard disk drives? - correct answer ✔✔Magnetic Sam is looking at the different types of memory. He is reading about DRAM memory. What is a characteristic of DRAM memory listed below? - correct answer ✔✔DRAM memory needs refreshing Dewey is tasked with replacing the graphics card in his grandmothers computer. He pulls out the existing card and notes the slot is a dark brown color, and has a small lock switch at the inside end. Which graphics-specific expansion slot is this? - correct answer ✔✔AGP Janice is trying to Skype with a business connection and needs a piece of computer hardware to capture the video information she is trying to send. What device does Janice need for her computer? - correct answer ✔✔Webcam
Kerrie Anne wants to mirror the information on one drive to a second drive so if the first drive fails there is a complete backup drive. Which type of RAID would do this? - correct answer ✔✔RAID 1 Jaquil bought a new USB flash drive that was labeled on the packaging with a USB 2.0 Hi-Speed logo. He knows the USB hub on his computer at home is a full-speed USB 1.1 device. What will happen if he plugs his new USB 2.0 device into the USB 1.1 hub? - correct answer ✔✔It will work but will not operate at its rated speed. A(n) _____ printer connects directly to a computer by way of a USB port, parallel port, serial port, or wireless connection. - correct answer ✔✔Local When you add a graphics adapter card to a computer, the system will default to the new connection for outputting to the display. If you want to have the use of the existing display connection where do you have to set that up? - correct answer ✔✔BIOS Which connector type has existed for many years, has been called an A/V jack, and is used to carry video and audio signals? - correct answer ✔✔RCA Which of the following is classified as a standard monitor resolution of 1600 x 1200 pixels? - correct answer ✔✔UXGA Jamar is installing new video cards in a school computer lab which will use video editing and Computer Aided Drafting. Jamar has the option to purchase whatever video card he chooses. Which of the following slots should the video cards use? - correct answer ✔✔PCIe x In talking about resolution, Axel uses the term "native resolution." One of the students asks Axel to explain this. Which explanation is correct? - correct answer ✔✔The resolution that conforms exactly to the number of pixels on the screen. Which device is used by a computer artist to draw with and have the image show up on the computer as electronic data? - correct answer ✔✔Digitizer Allison is researching storage device power connectors and learns that a drive receives power by a power cable from the power supply and communicates instructions and data through a cable attached to the
motherboard. She is curious and asks the question, "which is the faster of the two standards that hard drives, optical drives, and tape drives use for both of these types of connections"? - correct answer ✔✔Serial ATA (SATA) standard Joan, a technician, installs a new SATA hard disk drive for a customer. The customer asks Joan what the difference is between a SATA and PATA hard drive. How can Joan respond? - correct answer ✔✔SATA drive has one physical cable per drive The screen width to height ratio is known as what? - correct answer ✔✔Aspect Ratio Jackie is purchasing a computer. She asked the sales person what the benefits are between a solid state drive and a hard drive. How should the sales person respond? - correct answer ✔✔Solid state drives have no moving parts and are more reliable. What device on many laptops and mobile devices have built-in _____ that can capture still images and full HD video? - correct answer ✔✔Digital Cameras Which statement regarding KVM (Keyboard, Video, and Mouse) switches is correct? - correct answer ✔✔Users can switch between computers by using a hot key on the keyboard, buttons on the top of the KVM switch, or a wire remote. Which of the following is the characteristic action of a KVM switch? - correct answer ✔✔Connecting one monitor, mouse and keyboard to multiple computers Which of the following statements regarding solid state drives is correct? - correct answer ✔✔SSDs are faster, more reliable, and use less power than magnetic drives. Which input device allows laptop and mobile device users the ability to move their finger across an area of their device and cause it to receive motion much like a computer mouse? - correct answer ✔✔Touch Pad A _____, used to scan product codes on items at the time of purchase or when taking inventory, may be installed as a wireless connection, a serial port, a USB port, or a keyboard port. - correct answer ✔✔Barcode reader
What type of device could they obtain that would allow them to do this? - correct answer ✔✔Barcode reader Susie works for a large company and wants to set up a RAID system for speed and redundancy. Cost is no issue. What is the most desirable RAID setup to Susie? - correct answer ✔✔RAID 10 Natasha wants Wi-Fi on her desktop computer but only has a wired Ethernet port. What is her best option for wireless connectivity? - correct answer ✔✔PCIe wireless card with external antenna Which device's main function is to take a photograph or printed page and digitally capture it so that it can be edited or displayed on your computer? - correct answer ✔✔Scanner Adam's teacher is going over the parts of a hard drive. The teacher asks Adam what physical part of the hard drive stores the data. How should Adam answer? - correct answer ✔✔Platter Shemika has 2 ports on her computer that look identical in shape. She was told that PS/2 is the name of these ports. What devices typically plug into these ports? - correct answer ✔✔Mouse and keyboard Jane is setting up a RAID 5 drive array on her desktop PC. She has two 500-GB SATA HDD's. One of the drives is 7200 RPM and the other is 5400 RPM. The RAID setup utility is unable to configure the RAID 5 array. What is the problem? - correct answer ✔✔You need a minimum of 3 drives for RAID 5 Which of the following is the characteristic action of a biometric device? - correct answer ✔✔Authenticating a user based on a personal characteristic, such as fingerprint, retinal scan or voice JenLi is a technician for a small publishing company. JenLi begins getting complaints of employees with eyestrain and headaches. What should JenLi do? - correct answer ✔✔Increase the refresh rate Images stored on digital cameras: - correct answer ✔✔can be transferred to a PC using a USB or FireWire port and cable. Which of the following is the characteristic action of a keyboard? - correct answer ✔✔Reacting to pressure on the keys and sending binary codes to the PC
Which connector uses three separate RCA connectors, typically colors red, green and blue to separate the video signals? - correct answer ✔✔Component If an LCD display is not using its ___________ the image quality may not be optimum. - correct answer ✔✔Native resolution A(n) _____ printer has an Ethernet port to connect directly to the network, or uses Wi-Fi to connect to a wireless access point. - correct answer ✔✔Network Jeremy needs to connect an external audio device to his computer via a 3.5mm stereo mini-jack connector. What type of card would he most likely connect this device to? - correct answer ✔✔Sound card Which type of connector can have both audio and video? - correct answer ✔✔HDMI Peele is working with a server machine that has drive bays where storage devices can be added and removed while the computer is powered on. What option below best describes the type of technology these drives are using? - correct answer ✔✔Hot swapping If a computer system has two hard drive controllers and two hard drives, how should the drives be setup? - correct answer ✔✔One of the hard drives should be made the master while the other is made the slave. Kyle is building a gaming PC and wants to make sure he is addressing the needs of this type of configuration. Which of the following is most important for him to include on this computer build? - correct answer ✔✔A high-end video card What is a main difference between desktop and laptop CPUs? Laptop CPUs: - correct answer ✔✔use less power and work more efficiently. When searching for a laptop hard drive replacement, what is the physical size of the drive you should be searching for? - correct answer ✔✔2.5 inches
Janie notices that her computer unexpectedly shuts down about every half hour. What could be the problem? - correct answer ✔✔Faulty processor cooling fan Miriam is building a home theater PC and wants to make sure she is addressing the needs of this type of configuration. Which of the following is most important for her to include on her computer build? - correct answer ✔✔Surround sound audio Jennie is building her own computer. She has chosen to use an AMD processor. What should she be cautious of as she installs the processor? - correct answer ✔✔The AMD processor has hundreds of pins on the underside that are easy to bend. Adam is purchasing a home computer. As Adam is researching computers, he hears about Unified Extensible Firmware Interface (UEFI). What does UEFI promote? - correct answer ✔✔Standardizing the boot environment Albert is building a virtualization workstation and wants to make sure he is addressing the needs of this type of configuration. Which of the following is most important for him to include on this computer build? - correct answer ✔✔Maximum RAM Which of the following is an example of the proper installation of a processor? - correct answer ✔✔Without touching any contacts, the processor is keyed to fit into the socket in only one direction. Jose needs to erase and reprogram the EEPROM in his computer. What is this called? - correct answer ✔✔Flashing Modern BIOS's are normally stored in which of the following? - correct answer ✔✔EEPROM Ramon has been reading about overclocking his computer's CPU. What would be the benefit of overclocking the CPU? - correct answer ✔✔CPU overclocking would provide additional computer performance without any additional cost Juanita needs to replace the device on her laptop that allows others to see her when she is video conferencing with them. What is the device that needs replacing? - correct answer ✔✔Webcam
Why would the display on a laptop get dimmer when the power supply from the AC outlet is disconnected? - correct answer ✔✔Power management settings on the laptop. Jessie's laptop has a connector that looks like a MiniDisplay Port and allows external peripherals to be connected. What type of connector is this? - correct answer ✔✔Thunderbolt Jacob is examining his BIOS configuration. Which of the following CANNOT be changed in the BIOS? - correct answer ✔✔Install drivers Juan and Jeremy are working together at the library on two different laptops. Juan asks Jeremy why his laptop is so much brighter than his. What might Jeremy's answer be? - correct answer ✔✔LED backlighting What is a connector for laptops that many times plugs into a USB port and allows connection to another device to give added functionality? - correct answer ✔✔Dongle Alex is installing new additional RAM chips into his computer. What should Alex be aware of to avoid the common RAM installation mistakes? - correct answer ✔✔Mismatch speeds of RAM The Power On Self-Test (POST) checks for all of the following EXCEPT which one? - correct answer ✔✔Operating System Susie starts up her computer and gets a black screen with a series of beeps instead of the normal Windows startup screen. Which of these options is the most likely cause of this problem? - correct answer ✔✔Hardware issue Jillian read that her new laptop computer has two (2) mSATA connectors. Why would the laptop use mSATA connectors instead of the standard SATA connector? - correct answer ✔✔mSATA uses less space on the motherboard. What typically determines how long a laptop battery will hold a charge? - correct answer ✔✔The number of cells
To ensure you get the exact replacement plastics or frame parts for a particular laptop, where should you order replacement parts from? - correct answer ✔✔The manufacturer's website Juanita has a headset with a microphone and notices that her laptop will only allow her to connect the headphones for listening. What is the best reason why there is no place to plug in the microphone portion of the headset? - correct answer ✔✔Her laptop has an internal microphone. Lynn is using DDR-400MHZ memory in her PC, what is her FSB speed? - correct answer ✔✔200 MHZ What is the impact of wiring a building with Category 5 rated twisted pair cable? - correct answer ✔✔The network speed will be limited to 100Mbps. Which of the following devices is used to store and backup data on a network? - correct answer ✔✔NAS There are two accepted models designed to give a logical map to the central design of all network, which break down to layers. What is the name of the model that uses seven layers? - correct answer ✔✔OSI Currently there are two broadband capable mediums used for long distance networks. The most powerful uses light transmitted through glass or plastic tubes. Which of the following fit this description?
- correct answer ✔✔Fiber Which type of WAN connection uses a cellular telephone to allow other devices to get an Internet connection? - correct answer ✔✔Mobile hotspot What are the only two layers both models share the name of? - correct answer ✔✔Application and Transport As a network admin you are tasked with setting up a communication system allowing secure, remote access for the sales department. As such, you create a tunneling system by implementing this command line level protocol. - correct answer ✔✔SSL Which of the following is classified as a twisted pair type? - correct answer ✔✔UTP
There are many different types of DSL. Which DSL type is most commonly offered by ISPs? - correct answer ✔✔ADSL A small network usually in a single room or small office space is know as a what? - correct answer ✔✔LAN The mix of protocols used as the foundation for the modern internet are attached to a two-part group called? - correct answer ✔✔TCP/IP Which topology is based on a single central line with each system connecting directly off via vampire tap connectors? - correct answer ✔✔Bus Rinaldo's business is growing exponentially and as such he needs to triple his network size. Since he will no longer be operating out of his garage his current un-managed network solution will need to be replaced by a device capable of self-management and multi-cast communication. Which device listed fits the need? - correct answer ✔✔Switch Cable TV and satellite providers use what form of broadband medium for piping their signal to your television? - correct answer ✔✔Coaxial Used to connect multiple hosts only in networks where management is not a concern, this layer 1 device can only operate at broadcast. - correct answer ✔✔Hub How is TCP more reliable than UDP? - correct answer ✔✔TCP uses acknowledgements to see if PDUs arrived to their destination Much like adding a new phone number into a contact list requires a unique name be entered for easy identification, this protocol translates IP addresses into human understandable URLs and vice versa for computers to understand. - correct answer ✔✔DNS The mapping of the network by the IP addresses and host names of each system is called what? - correct answer ✔✔Logical Topology
Rules designating how data is to be packaged and how it can travel across a network are known as what?
- correct answer ✔✔Protocols According to the OSI model, what type of device are routers classified as? - correct answer ✔✔Layer 3 Windows has a few proprietary protocols for networking. One of them is used when a system or group of systems loses communication with the automatic addressing server. This protocol, meant to be a temporary gap to allow network communication to continue is called? - correct answer ✔✔APIPA Windows's addressing protocol holds a range of class B addresses solely for its use. Which of the following is that range? - correct answer ✔✔169.254.X.X What type of network topology has all of the nodes connected in a straight line? - correct answer ✔✔Bus A router develops this over time as a way to increase traffic speed going in and out of the network. It lists the IP and MAC addresses of every host on the network and every external system they've communicated with at some point. - correct answer ✔✔Route Table Which wiring configuration matches the T568B wiring standard? - correct answer ✔✔White/orange, orange, white/green, blue, white/blue, green, white/brown, brown How is port 80 used? - correct answer ✔✔To deliver web page content What is the difference between FTTN and FTTP? - correct answer ✔✔FTTP offers fiber WAN connection directly to the home When Francesca connects her cell phone to an earpiece using the Bluetooth wireless system she creates a? - correct answer ✔✔PAN What is the advantage of wireless line of sight service compared to satellite internet service? - correct answer ✔✔It offers the same low latencies as other broadband services.
IPv4 addresses are 32-bit which we write in decimal notation with four, 8-bit sections. IPv6, however, is a 128-bit number set which is written in what format? - correct answer ✔✔Decimal Notation What is an advantage of fiber optic cable over both coaxial and twisted pair? - correct answer ✔✔Fiber optic cable transfers light which is not susceptible to EMI. A network device that filters data based on ports, protocols, applications, and IP addresses is an example of which of the following? - correct answer ✔✔Firewall Routers, switches, and modems are classified as which of the following? - correct answer ✔✔Network devices Cabling in ceilings often means running lines near fluorescent lights which are known sources of EMI. To combat this potentially damaging signal field Cat5 cable can be wrapped in a special coating of aluminum. This special type of cable is known as which of the following? - correct answer ✔✔Plenum Rated Which type of fiber optic cabling is designed for signals traveling long distances? - correct answer ✔✔Single-mode Which of these connector types is NOT used to terminate fiber optic cable? - correct answer ✔✔BNC type Most people have this multi-purpose type network device in their homes. It provides routing, physical and wireless connectivity. - correct answer ✔✔Router Vladimir has just completed the manual software setup of his NIC. Afterward a message pops up on his Windows machine notifying him that there is an IP conflict. What should he do to resolve this problem? - correct answer ✔✔Log in to his router to find which device is causing the conflict How can a SOHO router allow external connections to itself yet still provide a layer of security for the internal LAN connected to it? - correct answer ✔✔DMZ
