Testout Final Review

What is the maximum range of the Bluetooth 2.0 specification for Class 1 devices? 30 M 300 M 100 M 10 M 50 M

100 M Bluetooth version 2.0 class 1 devices have a maximum range of about 100 meters. Earlier versions had a maximum range of only about 10 meters.

Which data transmission rate is defined by the IEEE 802.11b wireless standard? 150 Mbps 11 Mbps 2 Mbps 54 Mbps 10 Mbps

11 Mbps The IEEE 802.11b standard defines wireless transmission rates up to 11 Mbps. 802.11b wireless network interface cards and wireless access points (also called wireless hubs or wireless routers) will automatically negotiate the best transmission speed up to 11 Mbps based on current network traffic load and the quality of the wireless connection between the client and access point. The wireless communications are affected by distance, dense physical obstructions, and other electromagnetic interference producing devices. IEEE 802.11a and 802.11g defines wireless transmission rates up to 54 Mbps. The IEEE 802.3 standard defines Ethernet 10baseT cable based transmissions of 10 Mbps. IEEE 802.11n defines wireless transmission rates of 150 and 300 Mbps.

Which of the following are characteristics of Bluetooth? (Select TWO.) Red spectrum light waves 5.75 GHz radio wireless 2.4 GHz radio wireless Line-of-sight transmission Ad hoc connections

2.4 GHz radio wireless Ad hoc connections Bluetooth is a wireless networking standard that uses 2.4 GHz radio waves. These are the same type of radio waves used with 802.11 wireless networking, so radio transmission can go through walls (not limited to line-of-sight connections). Bluetooth uses ad hoc connections between devices. Infrared uses red spectrum light waves and is limited to line-of-sight transmissions.

Which frequencies does Zigbee operate on? 2.7 GHz, 400 MHz, and 865 MHz 1.4 GHz, 90 MHz, and 500 MHz 2.4 GHz, 900 MHz, and 868 MHz 2.4 GHz, 500 MHz, and 818 MHz

2.4 GHz, 900 MHz, and 868 MHz Zigbee is a specification based on IEEE 802.15.4. The WPANs operate on 2.4 GHz, 900 MHz, and 868 MHz frequencies.

What is the maximum number of nodes Z-Wave allows on its mesh network? 232 231 223 322

232 EXPLANATION Z-Wave allows up to 232 nodes on the mesh network.

Which of the following is the maximum transmission speed for Bluetooth v3 and v4 devices? 24 Mbps 11 Mbps 1 Mbps 3 Mbps

24 Mbps EXPLANATION Bluetooth v3 and v4 devices have a maximum transmission speed of 24 Mbps. Bluetooth v1.2 devices have a maximum transmission speed of 1 Mbps. Bluetooth v2 devices have a maximum transmission speed of 3 Mbps. The wireless standard 802.11b transmits data at a rate of up to 11 Mbps.

Which of the following printers would produce the highest print quality? 24-pin 18-pin 600 DPI 300 DPI

600 DPI EXPLANATION The dots per inch (DPI) describe the level of detail produced by a printer. The higher the DPI, the higher the print quality.

Which wireless standard can stream data at a rate of up to 54 Mbps using a frequency of 5 GHz? 802.11a 802.11n 802.11b 802.11g

802.11a 802.11a can stream data at a rate of up to 54 Mbps using a frequency of 5 GHz. 802.11b can stream data at a rate of up to 11 Mbps using a frequency of 2.4 GHz. 802.11g can stream data at a rate of up to 54 Mbps using a frequency of 2.4 GHz. 802.11n can stream data at a rate of up to 600 Mbps using a frequency of 2.4 GHz or 5 GHz.

Which IEEE wireless standards specify transmission speeds up to 54 Mbps? (Select TWO.) 802.11a 802.11b Bluetooth 802.11g 802.1x

802.11a 802.11g EXPLANATION Both the 802.11a and the 802.11g wireless standards specify maximum transmission speeds up to 54 Mbps. Bluetooth is a wireless standard commonly used to connect peripheral devices and operates at 720 Kbps. The 802.11b wireless standard provides transmission speeds of 11 Mbps. 802.1x is a wireless security standard that provides an authentication framework for 802-based networks.

A customer is experiencing a sporadic interruption of their Wi-Fi network in one area of their building. A technician investigates and discovers signal interference caused by a microwave oven. The customer approves replacing the wireless access point that covers the area, but asks that the wireless speed also be increased. Which of the following Wi-Fi standards should the replacement device support to BEST fulfill the customer's needs? 802.11a 802.11b 802.11g 802.11ac

802.11ac EXPLANATION The microwave oven interferes with wireless signals operating at 2.4 GHz. The 802.11ac standard is the best choice. It operates at 5.0 GHz and has a maximum throughput of 1300 Mbps. Both the 802.11b and 802.1g standards operate at 2.4 GHz. The 802.11a standard operates at 5.0 GHz, but has a maximum throughput of 54 Mbps.

The 802.11ac wireless networking standard provides increased bandwidth and communication speeds by using which of the following technologies? (Select TWO). 802.11b 802.11ac 802.11g 802.11a 802.11n

802.11ac The 802.11ac standard uses the 5 GHz frequency and supports data transmission speeds up to 1.3 Gbps. 802.11n supports data transmission speeds up to 600 Mbps. 802.11g and 802.11a both support data transmission speeds up to 54 Mbps. 802.11b supports data transmission speeds up to 11 Mbps.

You are designing a wireless network for a client. Your client needs the network to support a data rate of at least 150 Mbps. In addition, the client already has a wireless telephone system installed that operates 2.4 GHz. Which 802.11 standard will work best in this situation? 802.11a 802.11b 802.11g 802.11n

802.11n 802.11n is the best choice for this client. 802.11b and 802.11g both operate in the 2.4 GHz to 2.4835 GHz range, which would cause interference with the client's wireless phone system. 802.11a operates in the 5.725 GHz to 5.850 GHz frequency range, which doesn't interfere with the phone system. However, its maximum speed is limited to 54 Mbps.

You have been contacted by OsCorp to recommend a wireless internet solution. The wireless strategy must support a transmission range of 150 feet, use a frequency range of 2.4 GHz, and provide the highest possible transmission speeds. Which of the following wireless solutions would you recommend? 802.11g 802.11a 802.11n 802.11b

802.11n Of the technologies listed, only the IEEE 802.11n wireless standard addresses the desired requirements. The 802.11a wireless standard offers maximum speeds of 54 Mbps and uses the 5 GHz frequency range. The 802.11g wireless standard offers maximum speeds of 54 Mbps. 802.11b uses the 2.4 GHz frequency range but supports only 11 Mbps transfer speeds.

Your laser printer prints a vertical black line on every page. You change the toner cartridge, but the problem does not go away. What is the MOST likely problem? The fuser assembly is damaged. The photosensitive drum is wearing out. The paper is poor quality. A corona wire is dirty.

A corona wire is dirty. EXPLANATION If a corona wire is dirty, it might not create a uniform charge. As a result, the toner might not be attracted correctly to the photosensitive drum or paper. A vertical stripe is a typical symptom of this problem. Be careful when cleaning a corona wire because they are delicate.

A technician is tasked with preparing a conference room so that at least 20 guests will be able to wirelessly connect laptop computers to the company network. Which of the following network devices would be the BEST choice for this connectivity? Access point Switch Firewall Router

Access point EXPLANATION An access point gives Wi-Fi access to a network. A firewall filters network traffic based on a set of rules. A switch maintains a table of MAC addresses by port and forwards network frames only to the port that matches the MAC address. A router manages IP traffic between networks.

Which type of configuration would you use if you wanted to deploy 802.11n technology to communicate directly between two computers using a wireless connection? WEP WAP Ad hoc Infrastructure

Ad hoc Configure an ad hoc connection to connect one computer directly to another using a wireless connection. An infrastructure configuration uses a Wireless Access Point (WAP) to create a network. Devices communicate with each other through the WAP. WEP is a security mechanism used for authentication.

Which of the following are characteristics of the 802.11g wireless standard? (Select THREE.) Backwards compatible with 802.11b devices Operates in the 2.4 GHz range Backwards compatible with 802.11a devices Maximum bandwidth of 54 Mbps Maximum bandwidth of 11 Mbps Operates in the 5.75 GHz range

Backwards compatible with 802.11b devices Operates in the 2.4 GHz range Maximum bandwidth of 54 Mbps EXPLANATION 802.11g wireless networks: Operate in the 2.4 GHz range Have a maximum bandwidth of 54 Mbps Are backwards compatible with 802.11b networks 802.11b provides 11 Mbps bandwidth. 802.11a operates in the 5.75 GHz range. For this reason, 802.11a is not compatible with 802.11b or 802.11g.

You need a type of wireless connection that can transfer data between your phone, PDA, and laptop. You are transferring sensitive information. Which of the following would be the BEST choice? Cellular WAN Bluetooth Infrared Wireless Ethernet

Bluetooth EXPLANATION A Bluetooth connection would be the best choice because it automatically detects Bluetooth-enabled devices and creates a wireless PAN between them. It can be used for both voice and data signals, and it also provides 128-bit encryption to protect sensitive information in transit. Infrared is a line-of-sight medium, so it may be difficult to maintain connectivity. It doesn't provide encryption. Cellular WAN provides very little security for information in transit and requires a cellular connection for each device. Wireless Ethernet is used to transfer data, not to connect devices.

You want to use a wireless keyboard and mouse with your laptop computer. Which method should you choose? IEEE 1394 PS/2 USB Bluetooth 802.11g wireless

Bluetooth EXPLANATION Bluetooth would be the best choice because it has a high transfer rate and because it automatically detects other Bluetooth devices in the area and creates an encrypted PAN between them. 802.11g is a wireless networking standard for communicating between computers, not for connecting wireless devices to a computer. PS/2, IEEE 1394 (Firewire), and USB are all wired connection standards.

Which of the following types of printers heats the ink in its print head to print? Piezoelectric crystal inkjet Thermal Laser Bubble jet (inkjet)

Bubble jet (inkjet) The bubble jet inkjet printer applies heat to the ink and squirts it through tiny nozzles in the print head and onto the paper. A laser printer also uses heat, but the heat is applied to thermal rollers (not a print head). A piezoelectric printer uses pressure to apply ink. A thermal printer uses heat to cause a reaction on specially treated paper.

You replaced the print cartridge on an inkjet printer. What should you do next? Replace the fuser roller assembly. Send the printer to the factory for a realignment. Calibrate the printer. Replace the ribbon as well.

Calibrate the printer. EXPLANATION After replacing print cartridges, perform a calibration. The calibration uses the self test to check the printed image and make minor adjustments automatically. Calibration will help avoid blurry text, misalignment (jagged lines), or incorrect colors. Dot matrix printers use a ribbon and should be replaced if printer images become faint. Fuser roller assemblies are found in laser printers and should be replaced or cleaned if there are lines or splotches at regular intervals on the print job.

You replaced the print cartridge on an inkjet printer. Which of the following BEST describes the next step you should perform? Replace the ribbon. Calibrate the printer. Replace the fuser roller assembly. Send the printer to the factory for a realignment.

Calibrate the printer. EXPLANATION After replacing print cartridges, perform a calibration. The calibration uses the self-test to check the printed image and make minor adjustments automatically. Calibration helps avoid blurry text, misalignment (jagged lines), and incorrect colors. Dot matrix printers use a ribbon and should be replaced if printer images become faint. Fuser roller assemblies are found in laser printers and should be replaced or cleaned if there are lines or splotches at regular intervals on the print job.

A SOHO customer finds that their VoIP conversations frequently break up and become unintelligible. This happens most often when one person in the office streams video from the internet. Which of the following configuration changes on the SOHO router is MOST likely to improve VoIP performance? Forward UDP ports 5060 to 5065 to the VoIP phone. Change DHCP to give the VoIP phone a static IP address. Create a DMZ and add the VoIP phone to it. Change QoS settings to give VoIP traffic more priority.

Change QoS settings to give VoIP traffic more priority. EXPLANATION Poor VoIP performance is likely due to insufficient bandwidth to support both video streaming and VoIP calls. Changing the router's QoS settings to give a higher priority to VoIP traffic will most likely improve VoIP performance. Since VoIP functions correctly but gives poor performance, any port forwarding needed for VoIP must already be in place. Configuring the VoIP phone with a static IP address will not improve performance. Creating a DMZ and adding the VoIP phone to it will not resolve any traffic contention between video and VoIP traffic.

A technician is installing a new SOHO wireless router. Which of the following is the FIRST thing the technician should do to secure the router? Change the router's default password Press the WPS button Adjust the radio power levels Disable SSID broadcast

Change the router's default password EXPLANATION The first security configuration on the router should be to change the router's default password. Disabling the SSID broadcast may be desirable for added security, but it is not the first action you should take. Adjusting the radio power levels will limit the broadcast area and may be desirable for added security, but it is not the first action you should take. Pressing the WPS button temporarily broadcasts the SSID and passphrase, which would degrade security.

The 802.11ac wireless networking standard provides increased bandwidth and communication speeds by using which of the following technologies? (Select TWO). Channel bonding to combine more channels in the 5 GHz band to allow for up to 160-MHz-wide channels. OFDM modulation to allow several parallel data channels to stream data. Peer-to-peer mode to allow each host to communicate directly with other hosts. Dual band transmission to allow data to be transmitted at two frequencies at the same time. MU-MIMO to allow multiple users to use the same channel.

Channel bonding to combine more channels in the 5 GHz band to allow for up to 160-MHz-wide channels. MU-MIMO to allow multiple users to use the same channel. The 802.11ac wireless network standard increases bandwidth and communication speeds using the following technologies: MU-MIMO is an enhancement to MIMO that allows multiple users to use the same channel. In addition to adding MU-MIMO, 802.11ac doubled the number of MIMO radio streams from four to eight. Channel bonding is used to combine even more channels in the 5-GHz band, allowing up to 160-MHz wide channels. (Even though 160-MHz-wide channels are supported, most 802.11ac networks use 80-MHz-wide channels.)

A technician receives notification from a SOHO router manufacturer of a specific vulnerability that allows attackers to exploit SNMP traps to take over the router. The technician verifies the settings outlined in the notification. Which of the following actions should the technician take NEXT? Enable MAC filtering. Enable content filtering. Check for and apply firmware updates. Disable DHCP.

Check for and apply firmware updates. EXPLANATION Manufactures often accompany a vulnerability notification with firmware updates to address the vulnerability. These updates should be applied immediately. Parental controls or content filters restrict or block specific web traffic based on keywords, URLs, or the time of day, but do not address network hacker vulnerabilities. Disabling DHCP will require static IP addresses, but does nothing to address network hacker vulnerabilities. MAC filtering can be used to limit connectivity to a list of MAC addresses, but does nothing to address network hacker vulnerabilities.

One of your customers is still using an old dot matrix printer. While printing, the customer noticed that the text was light or faint. A new print head was installed, but the documents are still faint. Which of the following should you do to troubleshoot the MOST likely cause? Check the gap between the printer head and the paper. Check the toner levels. Initialize the ribbon. Install a maintenance kit.

Check the gap between the printer head and the paper. EXPLANATION In this case, you should check the gap between the printer head and the paper. If the gap between the platen and the print head is too large, the print could be faint because the pins are not firmly striking the ribbon and paper. Dot matrix printers do not use toner; they us a ribbon instead. Ribbons should be replaced, not initialized, if the printer images become faint. Maintenance kits are replacement components, such as fuser wires, rollers, and toner drums, needed after about 20,000 pages of printing.

One of your customers wants to configure a small network in his home. The home has three floors, and there are computers on each floor. This customer needs to share files between computers, print to a centrally located printer, and have access to the internet. Which of the following print solutions would BEST meet this client's needs? Configure a Wi-Fi infrastructure network. Configure a Wi-Fi space network. Configure a Wi-Fi global area network. Configure a Wi-Fi ad hoc network.

Configure a Wi-Fi infrastructure network. In infrastructure mode, each wireless host connects to a central connecting device called a wireless access point (AP). In this configuration, hosts communicate with each other through the AP instead of communicating with each other directly. The AP behaves much in the same way as a wired switch in this mode. The wireless AP not only controls communication between devices, but is also able to bridge the wireless network with a wired network and the internet. In an ad hoc configuration, devices can't use the internet unless one of them is connected to the internet and sharing it with the others. If internet sharing is enabled, the client performing this function will experience massive performance issues, especially if there are lots of interconnected devices. Since a device connected to the internet is required for ad hoc, it would be best to use infrastructure to alleviate some of the limitations of ad hoc. A space network is used for communication between spacecraft, usually in the vicinity of the Earth, such as NASA's Space Network. A global network is a network used to support mobile across an arbitrary number of wireless LANs, satellite coverage areas, or other configurations.

A technician is replacing a SOHO router and has configured DHCP to assign private IP addresses to hosts on the local network. These hosts can communicate with each other, but users can't browse the internet. Which of the following changes to the SOHO router is MOST likely to restore internet connectivity? Disable DHCP and configure the hosts with static IP addresses. Update the firmware on the SOHO router. Configure the SOHO router for NAT. Remove any QoS settings that give low priority to HTTP traffic.

Configure the SOHO router for NAT. EXPLANATION Configuring NAT to translate the private IP addresses on the local network to public IP addresses on the internet will most likely restore internet connectivity. QoS settings may cause HTTP traffic to be slower, but would not completely interrupt it. Static IP addresses will not restore internet connectivity. Updating the firmware is not likely to restore internet connectivity.

If a printer is connected directly to a Windows workstation, what can be done to allow other workstations on the same network to send print jobs to this printer? Configure the workstation as a print driver. Configure the printer to be a shared printer. Configure the printer to be a print server. The printer can only be shared by disconnecting it from the workstation and connecting it to the network.

Configure the printer to be a shared printer. EXPLANATION You can configure a printer attached to a Windows workstation as a network printer by configuring it to be a shared printer. This is done by accessing the Devices and Printers panel on the workstation and then opening the printer's Properties window and configuring the settings on the Sharing tab.

Which of the following methods can be used to connect a printer to a network? (Select TWO.) Plug a USB-to-Ethernet adapter in your printer's USB port. Connect your printer to an external print server device that is connected to the network. Plug a network cable into your printer's serial port. Plug a network cable into your printer's USB port. Plug an Ethernet cable into the network port in the printer.

Connect your printer to an external print server device that is connected to the network. Plug an Ethernet cable into the network port in the printer. EXPLANATION There are two common ways to make a printer a network printer. Most printers come with an integrated network card or have a slot for adding a network card. Otherwise, it is possible to connect it to the network using an external printer server. The external print server functions as a gateway between the printer's parallel interface and the network topology. While a USB-to-Ethernet adapter can be used to connect a workstation to a wired network, it won't work with a printer, as software drivers must be loaded on the host for the adapter to work.

Which of the following is not an example of wireless networking communications? 802.11n DSL Bluetooth Infrared

DSL DSL, or Digital Subscriber Line, is not a form of wireless networking communications. Rather, it is a form of high-speed WAN connection used to connect remote systems to the internet. Wireless communications are types of networking technologies that do not rely upon wires or cables to connect computers together in a networking relationship. 802.11n is the primary wireless standard used. 802.11-compliant networks employ communication signals of 2.4GHz or 5.7 GHz radio waves. Infrared and Bluetooth are other forms of wireless networking communications.

Which component in a laser printer applies toner to the drum, causing the toner to stick to the charged areas on the drum? Primary corona Secondary corona Fuser Developing roller

Developing roller EXPLANATION The developing roller applies toner to the drum. The toner sticks to the charged areas on the drum. The transfer roller charges the paper to attract the toner. The primary corona prepares the photosensitive drum for writing by causing it to receive a negative electrostatic charge. Depending on the printer, the primary corona may be wires or rollers. Fusing rollers attach the toner to the paper by pressing and melting it.

Which of the following are antenna types that are commonly used in wireless networks? (Select TWO). Low EMI antenna Directional antenna Full-duplex antenna Half-duplex antenna Omnidirectional antenna High EMI antenna

Directional antenna Omnidirectional antenna EXPLANATION Directional and omnidirectional are two types of antennae commonly used in wireless networks. A directional antenna: Creates a narrow, focused signal in a particular direction, which increases the signal strength and transmission distance. Provides a stronger point-to-point connection and is better equipped to handle obstacles. An omnidirectional antenna: Disperses the RF wave in an equal 360-degree pattern. Provides access to many clients in a radius.

Which type of printer uses an inked ribbon? Laser Dot matrix Dye sublimation Ink jet

Dot matrix EXPLANATION Dot matrix printers use an inked ribbon. The printing mechanism strikes the ribbon to put ink onto the paper. A dye sublimation printer is a non-impact printer that uses film-embedded dye. Inkjet printers are quiet, non-impact printers that store ink in a reservoir. Bubble jet printers are the most popular form of inkjet printers. Laser printers use lasers and electrical charges to transfer images to paper.

Which of the following printer types is considered an impact printer? Laser Dot matrix Inkjet Bubble jet

Dot matrix EXPLANATION Impact printers have a print head that comes in contact with the paper surface. A dot matrix printer is an example of an impact printer. Inkjet printers are quiet non-impact printers that store ink in a reservoir. Bubble jet printers are the most popular form of inkjet printers. Laser printers use lasers an electrical charges to transfer images to paper.

Jan, a user in the documentation department, printed a very large document. When Jan's boss walked by the printer and saw the large stack of papers, he called you and asked if you could configure the printer to help reduce the amount of paper used by her department. Which of the following printer configuration would BEST facilitate the manager's request? Collating Faxing Orientation Duplexing

Duplexing EXPLANATION Duplexing is the process of printing on both sides of the paper, which could reduce the amount of paper used by about 50%. Page orientation is the direction in which a document is printed. The two basic types of page orientation are portrait (vertical) and landscape (horizontal). Faxing is the telephonic transmission of scanned printed material (both text and images), normally to a telephone number connected to a printer or other output device. Collating is gathering and arranging individual sheets or other printed components into a pre-determined sequence.

You are troubleshooting a client connectivity problem on an Ethernet network. The client system has intermittent connectivity to the network. You discover that the unshielded twisted pair patch cable runs 75 feet from the wall outlet and then passes through the ceiling and over several florescent light fixtures before reaching the client system. Which of the following is the MOST likely cause of the connectivity problem? EMI interference. The UTP cable does not support transmission distances of 75 feet without signal regeneration. Failed patch cable. Crosstalk. Attenuation.

EMI interference. In this case, the most likely cause of the problem is electromagnetic interference (EMI) from the florescent lights. Cables run near air conditioners, lights, or other large electronic devices can create interference for data traveling through the cable. UTP cables in an Ethernet network have a maximum segment length of 100 meters. Distances beyond this length may require signal regeneration. Devices such as Ethernet switches provide signal regeneration. Attenuation describes the process of signal degradation as it passes through network media. As mentioned, UTP cables in an Ethernet network can run 100 meters before attenuation becomes a significant problem. Crosstalk refers to the interference caused by overlapping signals when cables are run in close proximity to each other.

You have just set up a new laser printer for the company president on her Windows workstation. You have installed the printer and the drivers. What should you do next? Document the steps you took to complete the configuration. Report to your supervisor that the job was completed. Edit the printer properties to configure device-specific settings. Share the printer over the network with the rest of the organization.

Edit the printer properties to configure device-specific settings. EXPLANATION After installing a printer, you should configure device-specific settings before performing any further tasks. Documenting the steps you took to complete the configuration and reporting to your supervisor that the job was completed are good things to do, but not until after you have configured device-specific settings. Sharing the printer over the network is not required unless specified in the implementation plan or statement of work.

You've just set up a color laser printer on a customer's Windows workstation. You've connected it to the workstation using a USB cable and have loaded the appropriate drivers. Which of the following are the BEST steps to take next? (Select TWO) Edit the printer properties to configure paper tray and other device-specific settings. Verify that it is working correctly by printing a test page. Use Driver Rollback to make a backup copy of the new printer driver. Use the USBTEST utility in Windows to verify that the USB connection is working properly. Set the printer driver to print grayscale by default to reduce color toner consumption. Do nothing. Your work is done.

Edit the printer properties to configure paper tray and other device-specific settings. Verify that it is working correctly by printing a test page. EXPLANATION After you install a new printer for a customer, client, or user, configure device-specific settings and then print a test page to verify that the printer is working properly.

A technician is installing a new SOHO wireless router in a home office. The customer wants to secure the wireless network so only a smartphone, tablet, and laptop can connect. Which of the following router settings should the technician change? Disable SSID broadcast Enable port forwarding Enable MAC filtering Disable DHCP

Enable MAC filtering EXPLANATION MAC filtering can be used to limit connectivity to a list of MAC addresses. Disabling the SSID broadcast will increase security, but SSID can be easily captured using wireless analyzers and then used to connect to the wireless network. Disabling DHCP will require static IP addresses, but will not limit network connectivity. Enabling port forwarding allows the router to redirected on the internal network. It will not limit network connectivity.

A technician is installing a SOHO router at an after-school community center. The customer would like to keep children from accessing inappropriate while browsing the web. Which of the following actions would help accomplish this goal? Update firmware Enable content filtering Disable SSID broadcast Disable DHCP

Enable content filtering EXPLANATION Parental controls or content filters restrict or block specific web traffic based on keywords, URLs, or the time of day. Disabling the SSID broadcast would increase security, but does nothing to restrict web browsing results. Disabling DHCP would require static IP addresses, but does nothing to restrict web browsing results. Updating firmware may improve security by fixing vulnerabilities, but does nothing to restrict web browsing results.

A user has purchased an external speaker to play music from a mobile device over a wireless connection. Which of the following actions is MOST likely needed for speaker connectivity. Enable pairing Create hotspot Configure tethering Disable airplane mode

Enable pairing EXPLANATION Wireless external speakers most often use Bluetooth. A mobile device and an external speaker must be paired when Bluetooth communication is used. Tethering describes the ability to use a cellular connection on a mobile phone to provide internet connectivity to another mobile device. This is usually done through a physical cable. A hotspot is created on a mobile phone to supply internet connectivity to multiple devices through the phones cellular connection. Airplane mode will disable all external communication methods on a mobile device to conform to airline requirements.

Which of the following are printer languages? (Select THREE). Escape codes Pascal PrintDef PostScript Capture PCL

Escape codes PostScript PCL EXPLANATION Escape codes were used by early printers. Hewlett-Packard's Printer Control Language (PCL) and Adobe PostScript are two common printer languages on modern printers. Pascal is a procedural programming language that supports structured programming and data structures to encourage good programming practices.

When you print from your laser printer, the paper contains faint images from previous printouts. Which of the following components is MOST likely the cause? (Select TWO). Transfer roller Secondary corona wire Fluorescent lamp Rubber scraper Primary corona wire

Fluorescent lamp Rubber scraper EXPLANATION After a page is printed, a rubber scraper removes any remaining toner from the OPC drum. A fluorescent lamp removes any remaining electrical charge. If images from previous print jobs show up on the page, check these two components. The primary corona charges the drum prior to writing the image. The secondary corona charges the paper to attract the toner. If these two components are faulty, the current image might have streaks or missing parts. If the toner is not sticking to the paper, check the transfer roller.

After removing the printed paper from your laser printer, the toner smudges and can be wiped off in places. Which of the following is the MOST likely problem? Print drum Fuser rollers Secondary corona Primary corona

Fuser rollers EXPLANATION Because the fuser rollers heat and press the entire paper, dirty fuser rollers are the most likely problem. The other components do not touch the paper directly.

One of the employees in your company calls and complains that text printed on the laser printer smudges easily and is staining hands and cloths. Which of the following, if adjusted or replaced, would BEST fix the printer? Photoreceptor drum OPC drum Toner hopper Laser Fuser unit

Fuser unit EXPLANATION After the toner has been applied to the paper, the pater passes through two heated rollers known as the fuser, or fuser unit. The heat and pressure from the rollers fuse the toner particles into the fibers of the paper. If the toner on the finished printed paper is smudging, the most likely issue is that the fuser unit is malfunctioning in some way. Since the text is being printed, the toner hopper is dispensing toner. The photoreceptor and the environmentally friendly version known as the organic photo conductor drums (OPC drums )received the charge from the corona wire. If these parts were not working, the text would not be transferred to the paper. Likewise, if the laser were not working, the image of the text would not be drawn on the photoreceptor drum, and the paper would come out blank.

If a printer is not Wi-Fi capable, how can it be set up to provide the most reliable wireless printing? Share the printer from a computer that has a wireless network connection. If the printer is Bonjour-enabled, it can be discovered by workstations using the Bonjour service. If the printer has a USB port, plug in a USB wireless adapter. If the printer is Ethernet capable, it can be connected to the network through a wireless router.

If the printer is Ethernet capable, it can be connected to the network through a wireless router. EXPLANATION If the printer is not Wi-Fi capable but has an Ethernet port, it can be connected to the network through a wireless router. Just use an Ethernet cable to connect the printer to a port on the wireless router. Users on the same network as the wireless router will be able to send jobs to the printer as if the printer has a wired connection. (All users will have to install the driver for that printer on their workstations.) The wireless router option is more reliable than connecting the printer to a workstation that has a wireless connection to the network and then sharing the printer from that workstation. The workstation performs the same role as the wireless router, but the workstation will be shut down a lot more often than the wireless router would be. A USB wireless adapter will not provide a wireless connection for a printer because the adapter needs to be connected to a device with an operating system and the capacity to install drivers. Bonjour can only be used for wireless printing if the printer is already using a Wi-Fi connection to the network.

You have been asked to recommend a printer that will be used in a travel agency. The printer will be used to print airline tickets. Each ticket has four pages (multi-part carbon-based forms), and the same information must show up on all four pages with a single pass of the printer. Which printer type would you recommend? Laser Ink Jet Dye sublimation Impact

Impact EXPLANATION Because dot matrix (impact) printers strike the image onto paper, they are good printers to use when carbon-copy documents are being printed. A dye sublimation printer uses film-embedded dye. Laser printers use lasers and electrical charges to transfer images to paper. Inkjet printers spray ink from ink stored in a reservoir.

You have been asked to help a small office with a limited budget set up and configure a Windows network. There are only five computers in this office. In addition to the ability to share network resources, security is a top priority. Which of the following is the BEST course of action in this situation? Install a HomeGroup to allow each computer to control which items are shared and who can access them. Install a HomeGroup to provide a single login and simplify security and sharing. Install a WorkGroup to provide a single login and simplify security and sharing. Install a WorkGroup to allow each device to control what is shared and with whom.

Install a WorkGroup to allow each device to control what is shared and with whom. EXPLANATION With only five PCs in this company, a Windows WorkGroup will let you organize your computers in a peer-to-peer network. This WorkGroup network lets you share files, internet access, and printers between the five employees. Unlike Windows HomeGroup, a WorkGroup has no centralized authority. Therefore, each workstation controls the database of users and privileges. Each device that is part of the WorkGroup can allow access on a user-by-user or group-by-group basis. The HomeGroup is the least secure approach to networking and sharing. A HomeGroup allows anyone with access to the Homegroup access to everything shared on any computer in the group. A single password is used for access to the group, providing equal access to all joined devices.

You're troubleshooting an older laser printer that is creating accordion jams where the paper is crumpled as it exits the printer moving into the output tray. Which of the following will MOST likely fix this problem? Replace the fuser wires. Replace the toner cartridge. Install a maintenance kit. Replace the drum. Use heavier paper.

Install a maintenance kit. EXPLANATION You should install a maintenance kit. Accordion jams are usually caused by worn rollers. Replacement rollers are included in most maintenance kits. Replacing the cartridge, drum, or fuser wires is necessary to correct print quality problems.

A user has created a complex spreadsheet on her workstation containing many graphs and charts. She sent the document to an older network laser printer that is shared by everyone in her department. When she picked up the output, only the top half of each page was printed, and the bottom half was blank. Which of the following will MOST likely rectify this issue? Install additional memory in the printer. Install additional memory in her workstation. Ask the network administrator to increase the speed of the network link in her department. Instruct her to not create such complex print jobs. Update the printer driver on her workstation.

Install additional memory in the printer. EXPLANATION If only part of a page is printed on a laser printer (and the rest of the page is blank), you most likely need to add memory in the printer. This is especially true if it happens when complex graphical documents are printed, but printing works correctly with text-only documents. In rare circumstances, updating the printer driver could also fix the issue, but this is unlikely. The speed of the network link does not affect the quality of the printer output.

A user calls to report that she is experiencing intermittent problems while accessing the wireless network from her laptop computer. She can access the network from her usual office, but today, she is trying to access the wireless network from a conference room, which is across the hall and next to the elevator. Which of the following is the MOST likely cause of her connectivity problem? MAC filtering is preventing the computer from connecting. Interference is affecting the wireless signal. The client computer is using the wrong channel number. SSID broadcast has been disabled. The user has not yet rebooted her laptop computer while at her new location.

Interference is affecting the wireless signal. EXPLANATION In this scenario, interference from the elevator motor is the most likely cause. Cordless phones or motors can generate interference that could affect wireless signals. Interference is a common cause of intermittent problems. Windows clients automatically detect the channel to use. If the SSID had changed or MAC filtering were preventing access, the computer would not be able to connect at all, even from her office.

Which type of printer uses lasers and electrical charges to transfer images to paper? Laser Piezoelectric crystal inkjet Thermal inkjet (bubble jet) Dot matrix

Laser EXPLANATION A laser printer uses lasers and electrical charges to transfer images to paper. A thermal inkjet printer applies heat to the ink in print head nozzles, causing the ink to boil and expel itself from the nozzle. A piezoelectric printer uses pressure, not heat, to apply the ink. A dot matrix printer uses pins striking the ink ribbon to transfer the ink.

Your company needs to print a lot of high-quality black-and-white text documents. These documents need to be printed as quickly and inexpensively as possible. The printer must also have the capacity to perform duplex printing. Which of the following printers BEST meets the printing requirements for your company? Laser Inkjet Thermal Dot matrix

Laser EXPLANATION Although laser printers may cost more to purchase, in the long run, the cost to print black-and-white text (with occasional graphics) will be less per page than an inkjet printer. Dot matrix printers are inexpensive, but they are slow, do not offer two-sided printing, and have a low quality output. Thermal printers typically cost more to purchase and require specialty materials, making them more expensive than a laser printer for the type of work this company requires.

Which type of printer uses a drum, plastic toner, and fuser to create a printed page? Ink jet Dot matrix Dye sublimation Laser

Laser EXPLANATION Laser printers use a laser to charge a metal drum. The drum picks up plastic toner, and the toner is then fused onto the paper (using rollers and heat). Dot matrix printers use an inked ribbon. The printing mechanism strikes the ribbon to put ink onto the paper. A dye sublimation printer is a non-impact printer that uses film-embedded dye. Inkjet printers are quiet non-impact printers that store ink in a reservoir.

Which of the following is the MOST likely symptom of a dirty drum or roller in a laser printer? A vertical black or white stripe on the print job. Lines or splotches repeated at regular intervals on the print job. A faint image on the print job. Smudges on the print job.

Lines or splotches repeated at regular intervals on the print job. EXPLANATION A dirty drum or roller can create lines or splotches at regular intervals on the print job.

You are an IT technician for your company. Your boss has asked you to set up and configure a wireless network to service all of the conference rooms. Which of the following features lets you allow or reject client connections by hardware address? SSID MAC address filtering DHCP WEP

MAC address filtering EXPLANATION MAC address filtering allows or rejects client connections by hardware address. Wi-Fi Protected Access II (WPA2) provides encryption and user authentication for wireless networks. Wired Equivalent Privacy (WEP) also provides security, but WPA2 is considered more secure than WEP. The SSID is the network name or identifier.

Which printer permission would you assign to a user so that she can pause the printer? Print Manage this printer Manage documents Pause printers

Manage this printer EXPLANATION Users with the Manage this printer permission can pause the printer and edit the printer properties, but cannot manage any documents waiting to be printed. Users with the Manage documents permission can manage all documents in the queue (pause, resume, delete, or rearrange the order). Users with the Print permission can print using the printer. The Pause printers permission does not exist.

A portable computer connected to a printer with an infrared interface works fine inside your office. However, when you go outside, it works sporadically. Which of the following would BEST resolve this issue? (Select TWO). Install Ferrite shielding on both the PC and printer power cords. Set the environment setting to outdoor mode in the BIOS. Move the printer closer to the computer. Block direct and reflected sunlight from the pathway between the PC and the printer. Install a Gamma Ray Spectrometer (GRS) to shield the interface.

Move the printer closer to the computer. Block direct and reflected sunlight from the pathway between the PC and the printer. EXPLANATION Infrared light is light that is near visible light in the electromagnetic spectrum. Therefore, very bright lights and, in particular, sunlight may cause interference with infrared interfaces. The best way to manage this interference is to minimize the distance between the connected devices and minimize interfering sunlight. There is no outdoor mode in BIOS settings. A GRS measures gamma radiation, not infrared. Adding ferrite shielding to power cords does nothing to reduce infrared interference.

Which of the following is an advantage of connecting a printer to a network? You can use a less costly printer. Printing speed is increased. Multiple users can print to the same printer. Troubleshooting costs are decreased.

Multiple users can print to the same printer. EXPLANATION Connecting a printer to a network lets multiple users print to the same printer. Network printers are often more expensive than non-networked printers. In many cases, you can purchase networked or non-networked versions of the same printer. While it is common to purchase a larger and faster printer to be used on the network, network printers by themselves are not faster than equivalent non-networked printers.

Which of the following wireless communication technologies can be described as follows? Has a very limited transmission range of less than two inches Used with credit cards and passports Slower than other wireless technologies Constantly emits a signal NFC Bluetooth Infrared in line-of-sight mode IEEE 1394 Infrared in diffuse mode

NFC EXPLANATION Near-field communication, or NFC, uses the 13.56 MHz frequency and has a very short range. In order for devices to communicate, they have to be within two inches of each other. NFC chips are being used for applications such as passports and credit cards to contain all the information about the passport holder or the credit card account. NFC chips use encryption algorithms to secure the connection, but constantly emit a signal and use a much slower transmission speed than other wireless technologies.

A user pays for a retail purchase by placing a smart phone next to the merchant's reader. Which of the following mobile device connections is being used? MicroUSB Lightning Bluetooth NFC

NFC EXPLANATION Near-field communication (NFC) enables two electronic devices, one of which is typically a mobile device such as a smartphone, to establish communication by bringing them within 10 cm (3.9 in) of each other. A popular NFC application is mobile proximity payments. A microUSB connection is used to connect two devices using a physical cable. A wireless Bluetooth connection has a range of approximately 10 m (32 ft), making it unsuitable for retail transactions. A lightning connection is used to connect an Apple mobile device to another device using a physical cable or by plugging the second device directly into the lightning connection. A credit card reader can be plugged into a lightning connection to make retail payments, but is not required in this scenario.

Which of the following locations will contribute the greatest amount of interference for a wireless access point? (Select TWO.) In the top floor of a two-story building Near exterior walls Near backup generators Near DCHP servers Near cordless phones

Near backup generators Near cordless phones EXPLANATION Other wireless transmitting devices (such as cordless phones or microwaves) and generators cause interference for wireless access points. In general, place access points high up to avoid the interference problems caused by going through building foundations. DHCP servers provide IP information for clients and do not cause interference.

The manufacturing department consists of 50 employees. Due to the number of employees in this department, the company cannot afford to have a printer for each user. Your company has purchased a new and very expensive laser jet printer for this department's use. This printer needs to be configured so all users in the department have the ability to print to this device from their own computers. Which of the following printer connections would BEST facilitate multiple user access? USB Parallel Serial Network

Network EXPLANATION Connecting the printer to a network cable allows users from multiple locations to connect to the printer. Although a printer can be connected to a PC using the other types of connections, they would not grant access to all users. A network cable will connect the printer to the same router that the other computers in the department are using.

A technician is installing a network-enabled smart home control system in a SOHO. To access the system from the internet, which of the following configurations is MOST likely required on the SOHO router? DHCP QoS NAT Port forwarding

Port forwarding Access to the smart home control system from the internet through the SOHO router is most likely gained using port forwarding. QoS gives priority to certain types of network traffic, such as VoIP phone traffic. DHCP dynamically assigns IP addresses to clients in the local network. NAT translates private IP addresses on the local network to public IP addresses on the internet.

Which component in a laser printer prepares the photosensitive drum for writing by causing it to receive a negative electrostatic charge? Organic photoconductor (OPC) drum Fuser Transfer corona Primary corona

Primary corona EXPLANATION The primary corona (also called the main corona or the charge corona) prepares the photosensitive drum for writing by causing it to receive a negative electrostatic charge. Depending on the printer, the primary corona will be wires or rollers. The Ooganic photoconductor (OPC) drum is just another name for the photosensitive drum. The transfer corona (sometimes called the secondary corona) charges the paper to attract the toner. Fusing rollers attach the toner to the paper by pressing and melting it.

Which of the following allows a computer to communicate with a printer? Print spooler Print driver Print queue Printer port

Print driver EXPLANATION The print driver is the software that allows the computer to communicate with the printer. The print queue is the portion of the hard drive where print jobs are stored before going to the printer. The printer port is the means by which a printer connects to a print server.

Which term refers to the portion of the hard drive where print jobs are stored before going to the print device? Print device Print driver Print queue Printer port

Print queue EXPLANATION The print queue is the portion of the hard drive where print jobs are stored before going to the print device. The print device is the physical device connected to the print server where print output occurs. The print driver is the software that allows the printer to communicate with the print device. The printer port is the hardware that allows a print device to connect to a print server.

You have created a large course that describes how to install and use the software created by your company. You created the document using FrameMaker, which uses its own proprietary file format. Because your customers don't use FrameMaker, you need to print the document in a format that all of your customers can use. Your customers use Windows, Linux, and Mac operating systems. Which of the following print methods would provide the BEST output for your customers to use? Print the file to XPS. Print the file to paper and ship it to your customers. Print the file to PDF. Print the file to the Fax printer.

Print the file to PDF. EXPLANATION Printing to the virtual PDF printer would produce a document that all three OS platforms can easily view. Printing to XPS would also work for Windows users, but would be difficult for those using Linux and Mac systems, since most don't support XPS by default (although third-party tools are available). Printing to FAX or to paper is impractical and cost-prohibited because of the cost of printing and shipping.

Which of the following virtual printing options allows you to convert a Word document into a .jpg file? Print to File Print to Image Print to PDF Print to XPS

Print to Image EXPLANATION Print to Image allows you to print any document into an image file that is independent of the application you use to view them. For example, you can convert a Word document into a .jpg file. The resulting images are print-ready and optimized for websites, smartphones, and tablets. You can also print them on a physical printer for excellent printouts. Print to the XPS allows you to create .xps files using any program that you can print from in Windows. Use the Print to XPS Document Writer when you want to view, save, share, digitally sign, and protect your document's content. The Print to PDF feature allows you to print your document to PDF format. Print to File saves the formatting and layout information of your file so a printer can create the document without the program or computer that created it.

You replaced the ink cartridges in a color inkjet printer. Users are now complaining that print quality has degraded, lines are fuzzy, and the colored areas in images are starting or stopping before they should. Which inkjet maintenance task do you need to perform? Print head cleaning Printer cartridge calibration Carriage and belt realignment Cartridge replacement using new cartridges instead of refills

Printer cartridge calibration EXPLANATION Printer cartridge calibration is a task that needs to be done every time ink cartridges are replaced. Most inkjet printers include a calibration utility that you can use to align the new print head in the new cartridge. Skipping this task will cause print quality to degrade, with lines becoming fuzzy and the colored areas in images starting or stopping before they should.

Which printer management component would you use to view the drivers used by a printer? Print server properties Print spooling service Print queue Printer properties

Printer properties EXPLANATION View the printer properties to see the drivers used by a printer. You can also use the printer properties to view the port used by a printer, manage user permissions, and configure color management profiles. Use the print server properties to view all printer ports used on the computer. This function can also be used to view the print drivers used on the system, including drivers required by network users, notifications, and the spooler location. The Print spooling service is a software process that captures print jobs from applications, places them in the print queue, and then sends each print job to the print device. The print queue is a location on the hard disk that holds print jobs waiting to be processed.

Which printer management components would you use to view the port a printer uses? (Select TWO.) Printer properties Print server properties Print spooling service Print queue properties Print queue

Printer properties Print server properties EXPLANATION Use the print server properties or the printer properties to view the port used by a printer. Print server properties displays printer ports used on the computer. The printer properties displays the port for the individual printer, as well as all printer ports for the computer. The Print Spooling service is a software process that captures print jobs from applications, places them in the print queue, and then sends each print job to the print device. The print queue is a location on the hard disk that holds print jobs waiting to be processed.

What are two major concerns regarding IoT devices? (Select TWO.) Privacy Accessibility Availability Short lifespan Hacking

Privacy Hacking EXPLANATION Hackers and privacy are two majors concerns for IoT users. Because IoT devices are closely connected, all a hacker has to do is exploit one vulnerability to manipulate all the data, rendering it unusable. Also, companies that make and distribute consumer IoT devices could use those devices to obtain and sell users' personal data.

You have just installed a maintenance kit in your laser printer. Which of the following is the BEST next step to perform? Reinstall the print drivers. Check the gap between the print head and the paper. Reset the page count. Use the automatic cleaning feature.

Reset the page count. EXPLANATION After installing a maintenance kit in your laser printer, you should reset the page count. The parts in a maintenance kit are replaced on a regular basis (usually after about 20,000 pages of printing).On dot matrix printers, you should check the gap between the printer head and the paper to avoid printer images become faint. Use an inkjet's automatic cleaning feature if letters have missing lines. The print drivers may need reinstallation if they become corrupt.

You installed a new toner cartridge in a company-owned laser printer and did some maintenance tasks that you noticed needed to be done. Which of the following BEST describes the next step you should perform? Check the gap between the printer head and the paper. Use the automatic cleaning feature. Reset the page count. Reinstall the print drivers.

Reset the page count. EXPLANATION After performing regular maintenance tasks on a laser printer, you should reset the page count. A printer needs maintenance on a regular basis (usually after about 20,000 pages of printing), so it helps to know how many pages have been printed since the last time it was serviced. On dot matrix printers, you should check the gap between the printer head and the paper to avoid printer images becoming faint. Use an inkjet's automatic cleaning feature if letters have missing lines. The print drivers would only need reinstallation if they had become corrupted.

Which of the following is used on a wireless network to identify the network name? WPA2 passphrase SSID WEP key MAC address

SSID EXPLANATION Wireless devices use the SSID (Service Set Identification) to identify the network name. All devices on a wireless network use the same SSID. The MAC address is a unique physical device address. The WPA2 Personal passphrase and the WEP key are both mechanisms used to secure wireless communications.

After receiving several complaints from the employees in your company, you start to troubleshoot a laser printer. After a short while, you have concluded that the most probable cause is a dirty drum. Which of the following is the MOST logical reasons for this conclusion? A blank page Spots at regular intervals on the page Ghost images on the page Garbage characters on the page

Spots at regular intervals on the page EXPLANATION Spots at regular intervals on the page typically indicate a dirty drum. Blank pages are caused by no toner or a faulty primary corona. Ghost images are caused by a faulty scraper blade or discharge lamp. Garbage characters are caused by using the wrong print driver.

A user on your network has been moved to another office down the hall. After the move, she calls you to complain that she has only occasional network access through her wireless connection. Which of the following is MOST likely the cause of the problem? The client system has moved too far away from the access point. The encryption level has been erroneously set back to the default setting. An SSID mismatch between the client and the WAP. An SSID mismatch between the client and the server. The client has incorrect WPA2 settings.

The client system has moved too far away from the access point. EXPLANATION In this case, the wireless client system has had no problems accessing the wireless access point until the move to the new office. In some cases, moving a system will cause signal loss either from the increased distance away from the WAP or from unexpected interference by such things as concrete walls or steel doors. There are several ways to correct the problem, including reducing the physical distance to the client, using a wireless amplifier, upgrading the antennas on the wireless devices, or adding another WAP to the infrastructure. Because the client could previously access the WAP and still has occasional access, it is likely that the move was the cause of the problem, rather than any configuration setting on the client system.

Oliver, a user in your company, is using an inkjet printer. After using this printer for several months, Oliver has noticed that streaks are beginning to appear on his printed pages. Oliver has asked you to fix this issue. Which of the following is MOST likely causing Oliver's printer to malfunction? The fusing unit is too hot, causing some of the ink from the previous job to remain on the unit. The mirror in the printer is dusty and needs to be cleaned. The imaging drum is probably at end of life. The printer's heads are out of position and need to be aligned.

The printer's heads are out of position and need to be aligned. EXPLANATION Streaks on an inkjet printer's pages are commonly caused by printer heads that are out of alignment. You can generally fix this problem using your printer's alignment function to straighten them. An image drum, fusing unit, and mirror are all components of a laser printer and, therefore, could not be an issue with Oliver's inkjet printer.

A user calls to report that she is experiencing intermittent problems while accessing the wireless network from her laptop computer. While talking to her, you discover that she is trying to work from the break room two floors above the floor where she normally works. Which of the following is the MOST likely cause of her connectivity problem? The wireless network access point on the user's normal floor has failed. The user has not yet rebooted her laptop computer while at her new location. The user has not yet logged off and back on to the network while at her new location. The user is out of the effective range of the wireless access point on her floor. The user needs a new IP address because she is working on a different floor.

The user is out of the effective range of the wireless access point on her floor. Because the user is only experiencing intermittent problems, the most likely cause is that she is out of the effective range of the wireless network access point. All of the other answers listed may be appropriate if the user was unable to connect to the network at all. However, as the user is experiencing only intermittent problems, none of the other answers is likely to be the cause of the problem.

Hannah has been working for your company for several years. Recently, she moved to a new department, which is located on a different floor. After the move, Hannah informs you that when she tries to print a Microsoft Word document (the same program she has always used), the printer on her new floor prints page after page of seemingly random characters. Which of the following is the MOST likely cause of Hannah's print problems? The program used to create the document has a bug. The wrong print driver has been selected. The cable connecting the printer to the network is failing. The hard drive on the print server is corrupt.

The wrong print driver has been selected. EXPLANATION In most cases, the issue described in this question is the result of a bad or incorrect print driver. When Hannah moved and created a connection to her new printer, the wrong print driver was selected. If the cable was bad or failing, the print job would not make it to the printer, and others in the company would experience the same problem. Since Hannah used the same word process in her old department, it is unlikely that it would suddenly stop working. A failing hard drive has been known to corrupt a print driver, but since others are not having the same issue, the most likely cause of the problem is the driver on Hannah's computer.

Match each smart device with its description. Thermostat Switch Bulb Plug Security camera Door lock Speaker/digital assistant

Thermostat- Learns from your habits and schedule, allows you to control the climate in your home remotely, shows you energy consumption in real-time, and adjusts itself depending on ambient conditions. Switch- Allows you to control hardwired lights, ceiling fans, fireplaces, small appliances, and garbage disposals. Bulb- Can change colors, track motion, stream audio over Bluetooth, and double as a connected camera, but it's only smart when turned on. It doesn't work when turned off. Plug- Easy solution for making small appliances, such as lamps, coffee makers, and toasters, smart. Security camera- Uses an RF transmitter. May include such features as motion detection, scheduled recording, remote viewing, and automatic cloud storage. Door lock- Uses a wireless protocol and a cryptographic key to execute the authorization process. It can also monitor access and send alerts related to the status of the device. Speaker/digital assistant- Uses voice recognition software and activates through a Wake Word or Hot Word.

You want to restrict the hours that the QA printer is available from Windows. Which tab on the Printer Properties page would you click so you can restrict the hours the printer is available? (no image)

To configure when a printer is available, edit the settings on the Advanced tab on the Printer Properties page.

You're responsible for ordering consumables for your organization's printers. Users print from these printers frequently and demand the utmost in reliability. Which of the following would be the BEST option when ordering new toner for these printers? Toner cartridges recommended by the printer manufacturer. Remanufactured cartridges from a recycler. Discount toner cartridges from a third-party manufacturer. Toner refill kits.

Toner cartridges recommended by the printer manufacturer. EXPLANATION You should order the toner cartridges recommended by the printer manufacturer. Because reliability is paramount in this scenario, you should avoid using discount or remanufactured cartridges or toner refill kits.

Which of the following components are found in dot matrix printers? (Select TWO.) Drum Tractor feed Platen Thermal ink ribbon Nozzles

Tractor feed Platen EXPLANATION Dot matrix printers use a tractor feed to pull paper through the printer. The print head pins strike an ink ribbon, pressing the ink into the paper. A platen is a metal plate behind the printer ribbon that is necessary because of the force of the pins striking the paper. Thermal ink ribbons are used in thermal printers. Dot matrix printers are impact printers that use force (not heat) to transfer ink. Nozzles are used in inkjet printers to transfer ink to the paper. A drum is used in a laser printer for transferring toner to the paper.

Which component in a laser printer charges the paper to attract toner? Fuser Primary corona Transfer roller Drum

Transfer roller EXPLANATION The transfer roller charges the paper to attract the toner. The primary corona prepares the photosensitive drum for writing by causing it to receive a negative electrostatic charge. Depending on the printer, the primary corona may be wires or rollers. A laser beam changes the charge on the surface of the drum in a pattern of the page's image. The toner sticks to the charged areas on the drum. Fusing rollers attach the toner to the paper by pressing and melting it.

Which connector is most commonly used to connect printers to desktop PC systems? Firewire Ethernet network card 802.11 wireless card IEEE 1284 USB

USB EXPLANATION Most printers use a USB connector to connect directly to a desktop PC system. In the past, IEEE 1284 connectors were the most commonly used connectors, but that is no longer the case. A limited number of Firewire printers are available, but they are not as commonly used to connect printers and computer networks as USB. 802.11 wireless and Ethernet cards.

Drag the wireless networking technology on the left to its associated transmission distance limitation on the right. Each technology may be used more than once. Up to 100 meters for Class 1 devices. Up to 30 meters in areas without interference. Up to 10 meters for Class 2 devices.

Up to 100 meters for Class 1 devices. Bluetooth Up to 30 meters in areas without interference. Infrared Up to 10 meters for Class 2 devices. Bluetooth EXPLANATION Radio frequency wireless transmissions can reach up to 356 meters, depending upon the 802.11 standard used and interference present in the environment. Infrared wireless transmissions work best for devices within 1 meter, but can operate up to 30 meters in areas without ambient light interference. The maximum Bluetooth transmission distance depends on the device class: Class 3 devices transmit up to 1 meter. Class 2 devices transmit up to 10 meters. Class 1 devices transmit up to 100 meters.

While changing the toner cartridge in your laser printer, you accidently spill toner in and around the printer. Which of the following is the BEST method for cleaning up the spilled toner? Wipe up most of the toner using a warm, wet cloth, and then vacuum. Use an anti-static micro-filtering vacuum. Use a household vacuum. Scoop up large portions and then use a static cloth to wipe up the remaining toner.

Use an anti-static micro-filtering vacuum. Excess toner should be removed from a laser printer with an anti-static and micro-filtering vacuum. A regular vacuum will build up an electrostatic charge from the toner, which could shock you, damage the printer, or damage your vacuum. Using any kind of liquid to clean up a toner spill could cause damage to the printer and may permanently adhere the toner to the printer. Although you should try to collect as much of the toner as possible using some type of scoop, doing this and wiping the spilled toner will not clean the printer thoroughly. If you do use a cloth, it should be a static-free cloth.

You're conducting scheduled maintenance on a laser printer. You notice that there is a build-up of excess toner inside the interior of the printer. Which of the following is the BEST way to remove the excess toner? Use an anti-static vacuum. Blow it out with compressed air. Wipe it out with a wet, soapy rag using a mild detergent. Sweep it out with a small broom.

Use an anti-static vacuum. EXPLANATION You should use an anti-static vacuum to remove excess toner from the interior of a laser printer. You should avoid using removal methods that will disperse the toner into the air, such as compressed air or a broom.

For the past several days, the print jobs from the inkjet printer are missing colors and leaving gaps. Which of the following will MOST likely resolve the problem? Add additional memory to the printer. Use the automatic print head cleaning feature. Check the gap between the printer head and the paper. Recalibrate the printer's color profile.

Use the automatic print head cleaning feature. EXPLANATION Use an inkjet's automatic cleaning feature if letters have missing lines and there are gaps. With inkjet printers, the nozzles sometimes become clogged, preventing ink from leaving the nozzles and reaching the paper. On dot matrix printers, you should check the gap between the printer head and the paper to prevent printer images from becoming faint. Color profiles are typically created by the manufacturer, and they correct problems when the printed colors don't match what you see on the screen. Add memory to a printer if the end of a printed page is missing.

Which of the following paper types should not be used in inkjet printers? Paper that is not specifically marked "For inkjet printers." Multi-purpose paper Very glossy paper Any colored paper

Very glossy paper EXPLANATION Early inkjet printers required paper specially manufactured for inkjet printers. Now, inkjet printer paper is not necessary. However, you still need to consider the paper's qualities and factors such as how the paper absorbs the ink. Very glossy paper that does not absorb ink well can be problematic.

While configuring a wireless access point device, a technician is presented with several security mode options. Which of the following options will provide the most secure access? WEP 128 WPA2 and AES WPA and AES WPA2 and TKIP WPA and TKIP

WPA2 and AES Of the three wireless security protocols (WEP, WPA and WPA2), WPA2 is the most secure. Of the two encryption algorithms (TKIP and AES), AES is the most secure.

Which of the following is true when the DHCP setting is disabled in a wireless network? Wireless clients must use a static IP address within the correct IP address range to connect to the network. Wireless clients with specific MAC addresses are denied access to the network. Wireless clients must use the correct encryption key with its packets. Wireless clients must use the correct wireless access point identifier (SSID) to connect to the network.

Wireless clients must use a static IP address within the correct IP address range to connect to the network. EXPLANATION Disabling DHCP prevents addresses from being automatically assigned to wireless systems. If DHCP is disabled, clients must use a static IP address and only those who know the IP address range and other parameters will be able to connect. Enabling MAC address filtering denies access to clients with unauthorized MAC addresses. Encryption keys are only needed when wireless networks implement some type of encryption (WEP, WPA, or WPA2). The SSID is the identifier for the wireless access point and is used to associate wireless clients with the access point.

You are testing a printer you just installed, so you use the operator panel on the printer to print a test page. Later, you use the printer properties on your computer to print a test page. Instead of a normal test page, you receive several pages with garbled characters on them. What is the most likely cause of the problem? Bad printer memory Wrong toner cartridge Wrong print driver A problem with the printer power supply or the power cable

Wrong print driver EXPLANATION When you print a test page from your computer and it does not work properly, you most likely have an incorrect print driver or a printer cable that is not fastened properly. Memory or power supply problems are rare in printers. You would probably not be able to install an incorrect toner cartridge into the printer.

Your system administrator shared a USB laser printer connected to your Windows 10 system so other users on the network can send jobs to it. A network user has sent a large job to the printer, but the print job has stalled. You try to delete the print job, but can't. Which of the following BEST describes the reason you cannot delete the print job? You do not have the Print permission. You do not have the Manage this printer permission. You do not have the Manage network printers permission. You do not have the Manage documents permission.

You do not have the Manage documents permission. In this case, you can't delete the print job because you don't have the Manage documents permission. Users who have the Manage documents permission can manage all documents in the queue (pause, resume, delete, or rearrange the order). Users with the Print permission can print using the printer and manage their own documents. Users with the Manage this printer permission can edit the printer properties and pause the printer, but cannot manage any documents waiting to be printed. The Manage network printers permission does not exist.

What are the two protocols used most often with IoT devices? (Select TWO.) Zbot Zensys Zigbee Z-Wave Zerg

Zigbee Z-Wave EXPLANATION Zigbee and Z-Wave are two radio protocols many IoT devices work with because they are designed for low-data rate, low-power applications. They link all IoT devices to form a mesh network.

Portable devices have a software-controlled switch that disables all wireless functionality. What is the name of this software-controlled switch?

airplane mode Instead of a physical switch, some portable devices have a software-controlled switch called Airplane Mode. When in Airplane Mode, all wireless functionality is disabled.