IT exam Questions and Answers Latest Updates 2024.pdf, Exams of Information Technology

Download IT exam Questions and Answers Latest Updates 2024.pdf and more Exams Information Technology in PDF only on Docsity! l IT exam Questions and Answers Latest Updates 2024 To clean laptops, which two products are recommended? (Choose two.) ▪ cotton swabs * ▪ mild cleaning solution* ▪ ammonia ▪ rubbing alcohol ▪ car wax 1. What are three common input devices found on laptops? (Choose three.) ▪ touchpad * ▪ fingerprint reader * ▪ web camera* ▪ external monitor ▪ PS/2 keyboard ▪ AC power connector 2. Which two statements are true of a laptop CPU when compared to a desktop CPU? (Choose two.) ▪ Laptop CPUs operate at higher clock speeds. ▪ Laptop CPUs use smaller cooling devices.* ▪ Laptop CPUs consume more power. ▪ Laptop CPUs are interchangeable with desktop CPUs. ▪ Laptop CPUs are designed to produce less heat.* 3. A technician has been asked to decide which laptop components should be cleaned on a monthly basis as part of a maintenance routine. What are two examples of components that should be included? (Choose two.) ▪ exterior case * ▪ keyboard* ▪ CPU ▪ optical drive ▪ RAM Explanation: Routine preventive maintenance includes the cleaning of parts that can get dirty with everyday use. Internal components are not required to be cleaned as often as external Explanation: Laptop CPUs are designed to use less power and generate less heat than desktop CPUs. Explanation: Touchpads, fingerprint readers, and web cameras are common devices on modern laptops. An external monitor is an output device. While a PS/2 keyboard is an input device, it is not commonly used with laptops. An AC power connector provides a method to recharge the battery, but provides no data input to the laptop.? Explanation: To clean a laptop computer, mild substances and lint-free cloths are required. Cleaners should be nonabrasive. Otherwise they can damage the laptop components. l Explanation: A dark screen on a laptop when the display is up and the laptop is powered on could happen because the laptop is in sleep mode. Tap a key to see if that is the case. If that does not work, remove the battery and AC power cord, then reinstall the battery and attach the power cord and try powering on again. The problem could also be a dirty or damaged screen cutoff switch. Use the repair manual to locate and clean or replace the switch. 4. What are two methods typically used on a mobile device to provide internet connectivity? (Choose two.) ▪ cellular* ▪ Zigbee ▪ Wi-Fi* ▪ Z-Wave ▪ GPS 5. A customer brings a laptop into a computer repair shop. The technician can tell that the laptop is powered on by the power light, but nothing displays on the screen. What are two possible issues that could cause this symptom? (Choose two.) ▪ The backlight needs adjusting. ▪ The display properties need adjusting. ▪ The laptop has gone into sleep mode. * ▪ The screen cutoff switch needs cleaning or is damaged.* ▪ The video cable is loose. 6. Which type of RAM modules are designed for the space limitations of laptops? ▪ SODIMMs* ▪ SRAM ▪ SIMMs ▪ DIMMs 7. What is a design consideration for mobile CPUs used in laptops compared with desktop CPUs? ▪ They are interchangeable with desktop CPUs. ▪ They require smaller cooling mechanisms than desktops do.* ▪ They operate at higher clock speeds than desktops do. ▪ They consume more power than desktops do. 8. Which protocol can be used to transfer messages from an email server to an email client? ▪ SMTP ▪ POP3 * Explanation: Laptop CPUs are designed to generate less heat and therefore require smaller cooling mechanisms than their desktop counterparts. Explanation: SRAM is not used for desktops or laptops as a RAM module, but as L1 cache inside the CPU. SIMMs were replaced by DIMMs on desktops as RAM modules. Explanation: Mobile devices commonly use Wi-Fi and cellular to connect to the internet. The cellular connection uses the cellular data network for a fee. The Wi-Fi connection uses an 802.11 wireless network in the area to connect to the internet. parts. Nonabrasive cleaners should be used to ensure that no damage is caused to laptop components. l Explanation: In order to configure two Bluetooth devices, the devices must connect to one another by pairing with one another. This may require a PIN or passkey as part of the process. 18. Which laptop component would be considered an FRU? ▪ SODIMM ▪ display* ▪ battery ▪ external card reader 19. Which characteristic should be considered when a replacement mobile device battery is being selected? ▪ It has the same power ratings.* ▪ It is from the same manufacturer. ▪ It provides a warranty. ▪ It is a mini-ATX form factor. 20. Which specialized mobile device is commonly used with VR and AR? ▪ fitness monitor ▪ smart watch ▪ headset* ▪ e-reader 21. Which cellular technology supports speeds up to 20 Gbps? ▪ Z-Wave ▪ Zigbee ▪ 5G* ▪ 4G 22. A technician is configuring a device and the device shows that it is pairing. Which mobile technology is being used? ▪ Wi-Fi ▪ Zigbee ▪ Bluetooth* ▪ tethering 23. Which app is used to synchronize data to an iOS-based mobile device? ▪ iTunes* ▪ Auto Sync ▪ MIME Explanation: Cellular technology standards are 1G, 2G, 3G, 4G, LTE, and 5G. 5G technology supports speeds up to 20 Gbps and is more efficient. Explanation: Virtual reality (VR) provides an immersive experience replacing the real world; augmented reality (AR) uses an overlay of digital elements into the real world. Headsets are commonly used with both VR and AR technologies. Explanation: A replacement battery must meet or exceed the specifications of the mobile device manufacturer and have the same form factor. Explanation: A field-replaceable unit (FRU), such as a motherboard, display, keyboard, or touchpad, commonly requires some technical skill to install. RAM and a battery are considered to be customer-replaceable units (CRUs). l ▪ SMTP Explanation: iOS devices can synchronize apps, music, video or books using the iTunes app. 24. A technician has been called on site to help a user who has a laptop problem. At which point should the technician look online for additional possible solutions to a laptop problem? ▪ after questioning the user ▪ before establishing a theory of probable cause ▪ after testing a theory to determine the cause* ▪ after implementing preventive measures 25. An employee wants to include pictures and documents when sending email messages on a mobile device. What technology allows this task to be accomplished? ▪ MIME* ▪ airplane mode ▪ cloud service ▪ Bluetooth 26. A lawyer wants to give a laptop the ability to connect to the internet through the cellular network. What technology allows this task to be accomplished? ▪ mobile hotspot* ▪ airplane mode ▪ cloud service ▪ Bluetooth 27. A lawyer wants to enable a smartphone to be used as a hands-free device. What technology allows this task to be accomplished? ▪ Bluetooth* ▪ NFC ▪ GPS ▪ MIME 28. A doctor wants to use a cell phone for entertainment without connecting to any networks. What technology allows this task to be accomplished? ▪ airplane mode* ▪ NFC Explanation: The steps of the troubleshooting process are as follows: Identify the problem. Establish a theory of probable cause. Test the theory to determine the cause. Establish a plan of action to resolve the problem and implement the solution. Verify full system functionality and, if applicable, implement preventive measures. Document findings, actions, and outcomes. It is during step 4 that if no solution is achieved in the previous step that a technicians needs further research. l ▪ GPS ▪ MIME 29. A doctor wants to make a backup copy of all of the data on a mobile device. What technology allows this task to be accomplished? ▪ cloud service* ▪ NFC ▪ GPS ▪ MIME 30. A student wants to make a backup copy of all of the data on a mobile device. What technology allows this task to be accomplished? ▪ cloud service* ▪ NFC ▪ GPS ▪ MIME 31. A student wants to make mobile phone calls over a wireless data network based on 802.11 technology. What technology allows this task to be accomplished? ▪ Wi-Fi calling* ▪ NFC ▪ GPS ▪ MIME 32. A salesperson wants to make mobile phone calls over a wireless data network based on 802.11 technology. What technology allows this task to be accomplished? ▪ Wi-Fi calling* ▪ MIME ▪ GPS ▪ mobile hotspot 33. A salesperson wants to embed the location on a digital photograph to record where it was taken. What technology allows this task to be accomplished? ▪ geotagging* ▪ MIME ▪ GPS ▪ mobile hotspot 34. A manager wants to have a laptop with touchscreen capabilities. What technology allows this task to be accomplished? ▪ digitizer* ▪ MIME ▪ GPS ▪ mobile hotspot 35. A student wants to make a backup copy of all of the data on a personal mobile device. What technology, product, or setting allows this task to be accomplished? ▪ cloud service* ▪ digitizer ▪ geotagging ▪ VPN 36. An employee wants to find an alternate route home because the usual route is blocked by an accident. What technology, product, or setting allows this task to be accomplished? l ▪ The network is small with fewer than eight users. ▪ The company network requires secure access to confidential information.* ▪ The users need a central database to store inventory and sales information.* ▪ Each user understands how to safely share files across a network. ▪ The data gathered by the employees is critical and should be backed up on a regular basis.* ▪ All employees passed a strict background check as part of the corporate hiring practices. 8. What is a characteristic of a WAN? ▪ It connects multiple networks that are geographically separated.* ▪ It spans across a campus or city to enable sharing of regional resources. ▪ It is typically owned and managed by a single home or business. ▪ It requires a wireless access point to connect users to the network. 9. Which three layers of the OSI model map to the application layer of the TCP/IP model? (Choose three.) ▪ application* ▪ presentation* ▪ session* ▪ transport ▪ network ▪ data link ▪ physical 10. What is the correct order of the layers of the TCP/IP model from the top layer to the bottom? ▪ application, session, network, data link, physical ▪ application, internet, network access, transport ▪ network access, transport, internet, application ▪ application, transport, internet, network access * 11. What TCP/IP model layer is responsible for MAC addressing? ▪ network access* ▪ internet ▪ transport ▪ application 12. What PDU is associated with the network layer of the OSI model? ▪ data ▪ frame ▪ packet* ▪ segment 13. Which two layers of the OSI model correspond to the functions of the TCP/IP model network access layer? (Choose two.) ▪ physical* ▪ data link* ▪ network ▪ transport ▪ session 14. What is identified by the 100 in the 100BASE-TX standard? ▪ the maximum bandwidth in Mb/s* ▪ the maximum cable distance in meters l ▪ the maximum number of network nodes ▪ the series number of the standard 15. Which two characteristics describe Ethernet technology? (Choose two.) ▪ It is supported by IEEE 802.3 standards.* ▪ It is supported by IEEE 802.5 standards. ▪ It typically uses an average of 16 Mb/s for data transfer rates. ▪ It uses the CSMA/CD access control method.* ▪ It uses a ring topology. 16. Which IEEE standard operates at wireless frequencies in both the 5 GHz and 2.4 GHz ranges? ▪ 802.11n* ▪ 802.11g ▪ 802.11b ▪ 802.11a 17. A customer is considering a multipurpose device to create a home network. Which three devices are usually integrated into a multipurpose network device? (Choose three.) ▪ web server ▪ switch* ▪ router* ▪ email server ▪ wireless access point* ▪ print server 18. Which network device makes forwarding decisions based on the destination MAC address that is contained in the frame? ▪ repeater ▪ hub ▪ switch* ▪ router 19. A routeruses IP addresses to forward traffic from one network to other networks. 20. A network specialist has been hired to install a network in a company that assembles airplane engines. Because of the nature of the business, the area is highly affected by electromagnetic interference. Which type of network media should be recommended so that the data communication will not be affected by EMI? ▪ STP ▪ coaxial ▪ fiber optic* ▪ UTP 21. Which term describes a type of coaxial cable? ▪ RG-6* ▪ 568A ▪ UTP ▪ Cat 5e 22. Which pairs of wires change termination order between the 568A and 568B standards? ▪ green and orange* ▪ green and brown ▪ blue and brown l ▪ brown and orange 23. Which two types of signal interference are reduced more by STP than by UTP? (Choose two.) ▪ RFI* ▪ white noise ▪ MDF ▪ dispersion ▪ EMI* 24. How many host addresses are available on a network with a subnet mask of 255.255.0.0? ▪ 65,534* ▪ 254 ▪ 16,777,214 ▪ 1024 25. A technician is troubleshooting a problem where the user claims access to the Internet is not working, but there was access to the Internet the day before. Upon investigation, the technician determines that the user cannot access the network printer in the office either. The network printer is on the same network as the computer. The computer has 169.254.100.88 assigned as an IP address. What is the most likely problem? ▪ The computer cannot communicate with a DHCP server.* ▪ The IP default gateway on the computer is incorrect. ▪ The network interface card driver needs to be updated. ▪ The router that connects this network to other networks is down. 26. What is a characteristic of the UDP protocol? ▪ low overhead* ▪ guaranteed delivery ▪ error correction ▪ end-to-end establishment before delivery Older Version 27. Which two statements are true of a laptop CPU when compared to a desktop CPU? (Choose two.) ▪ The laptops consume more power. ▪ The laptop CPUs are interchangeable with desktop CPUs. ▪ The laptops are designed to produce less heat.* ▪ The laptops operate at higher clock speeds. ▪ The laptops use smaller cooling devices.* 28. In the power management settings, which two devices can be set to turn off to conserve battery power? (Choose two.) ▪ cooling fans ▪ memory ▪ hard disk drive* ▪ display* ▪ CPU 29. What is the first step in the process of troubleshooting a laptop? ▪ Verify full functionality. ▪ Determine the exact cause. ▪ Establish probable causes.