CompTIA A+ 220-1001 & 220-1002 Exam Cram B - CompTIA A+ 1001
A DNS server (Domain Name System server) functions like the Internet’s phone book—translating human-readable domain names (e.g., dprocomputer.com) into numerical IP addresses that devices use to connect to resources. This resolution process is fundamental for routing web traffic correctly.
Which of the following servers is responsible for resolving a name such as dprocomputer.com to its corresponding IP Address?
Web Server
FTP Server
DNS Server
Proxy Server
Syslog Server
DNS Server
Key Terms
Which of the following servers is responsible for resolving a name such as dprocomputer.com to its corresponding IP Address?
Web Server
FTP Server
DNS Server
Proxy Server
Syslog Server
DNS Server
Which of the following statements describes the advantages of using the Dynamic Host Configuration Protocol (DHCP)? (Select the Two Best Answers)
IP Addresses can be managed from a Central Location.
The Network Speed can automatically adjust based on the type of traffic being generated.
The Host File on the computer can be validated for proper entries.
Media Access Control addresses can be changed.
Computers can automatically get new addressing when moved to a different network segment.
IP Addresses can be managed from a Central Location.
Computers can automatically get ne...
Which of the following storage technologies is used by hard disk drive?
Magnetic
Optical
Impact
Solid-State
Magnetic
On which type of computer is RAM the most important?
Gaming PC
Virtualization Workstation
AV Editing Workstation
Standard Thick Client
Virtualization Workstation
A Client brings in a printer that is giving a paper-feed error. Which of the following is the most likely cause?
Separation Pad
Developing Rollers
Paper Tray
Pickup Rollers
Pickup Rollers
Which Protocol uses Port 389?
SMTP
POP3
LDAP
HTTPS
LDAP
Related Flashcard Decks
Study Tips
- Press F to enter focus mode for distraction-free studying
- Review cards regularly to improve retention
- Try to recall the answer before flipping the card
- Share this deck with friends to study together
| Term | Definition |
|---|---|
Which of the following servers is responsible for resolving a name such as dprocomputer.com to its corresponding IP Address? Web Server FTP Server DNS Server Proxy Server Syslog Server | DNS Server |
Which of the following statements describes the advantages of using the Dynamic Host Configuration Protocol (DHCP)? (Select the Two Best Answers) IP Addresses can be managed from a Central Location. | IP Addresses can be managed from a Central Location. Computers can automatically get new addressing when moved to a different network segment. |
Which of the following storage technologies is used by hard disk drive? Magnetic | Magnetic |
On which type of computer is RAM the most important? Gaming PC | Virtualization Workstation |
A Client brings in a printer that is giving a paper-feed error. Which of the following is the most likely cause? Separation Pad | Pickup Rollers |
Which Protocol uses Port 389? SMTP | LDAP |
What is the max distance at which a Class 2 Bluetooth device can receive signals from a Bluetooth access point? 100 m | 10 m |
|
Explanation: 802.11a operates at 5 GHz only; so does 802.11ac. Incorrect answers: 802.11b and g operate at 2.4 GHz. 802.11n operates at either 2.4 or 5 GHz. The IEEE 802.11 wireless standards are collectively known as 802.11x. However, there is no actual 802.11x standard; it was not used in order to avoid confusion. 802.11x is instead a variable that you may sometimes see that refers to two or more 802.11 technologies. L., Prowse David. CompTIA A+ Practice Questions Exam Cram Core 1 (220-1001) and Core 2 (220-1002) (p. 63). Pearson Education. Kindle Edition. |
DDR4-1600 | DDR4-2666 Explanation: DDR4-2666 has a peak transfer rate of 21,333 MB/s. It runs at an I/O bus clock speed of 1333 MHz and can send 2666 megatransfers per second (MT/s). It is also known as PC4-21333. The math: To figure out the data transfer rate of DDR4 from the name “DDR4-2666,” simply multiply the 2666 by 8 (bytes) and solve for megabytes: 21,333 MB/s. To figure out the data transfer rate of DDR4 by the consumer name “PC4-21333,” just look at the number within the name and add “MB/s” to the end. To figure out the data transfer rate when given only the I/O bus clock speed (for example, 1333 MHz), multiply the clock speed by 2 and then multiply that number by 8 and solve for megabytes: 1333 MHz × 2 × 8 = 21,333 MB/s. However, keep in mind that a RAM module such as DDR4-2666 is often inaccurately referred to as a 2666-MHz RAM module, but really that is the MT/s. Incorrect answers: DDR4-1600 has a peak transfer rate of 12,800 MB/s; it is also known as PC4-12800. DDR4-2133 has a peak transfer rate of 17,066 MB/s; it is also known as PC4-17000. DDR4-2400 has a peak transfer rate of 19,200 MB/s; it is also known as PC4-19200. L., Prowse David. CompTIA A+ Practice Questions Exam Cram Core 1 (220-1001) and Core 2 (220-1002) (pp. 63-64). Pearson Education. Kindle Edition. |
Which of the following types of printers uses a print head, ribbon, and a tractor feed? Laser | Impact |
Several users on your network are reporting that a network printer, which is controlled by a print server, is not printing. What is the first action you should take to fix the problem? Have the affected users restart their computers. | Clear the Print Queue |
CPU is beyond the recommended voltage range. | CPU is beyond the recommended voltage range. Explanation: If the CPU is running beyond the recommended voltage range for extended periods of time, it can be a sign of a failing CPU. The problem could also be caused by overclocking. Check in the UEFI/BIOS to see whether or not the CPU is overclocked. Incorrect answers: If the computer won’t boot at all, another problem might have occurred, or the CPU might have already failed. Low case temperatures are a good thing (if they aren’t below freezing!), and spyware is unrelated to this issue. L., Prowse David. CompTIA A+ Practice Questions Exam Cram Core 1 (220-1001) and Core 2 (220-1002) (p. 65). Pearson Education. Kindle Edition. |
Which of the following cable types is not affected by EMI but requires specialized tools to install? Cat 6 | Fiber Optic |
Setting an administrator password in the BIOS accomplishes which of the following? Prevents a user from rearranging the boot order | Prevents a user from rearranging the boot order |
Which of the following functions is performed by the external power supply of a Laptop? Increases voltage | Converts AC power to DC Power. |
How many pins would you see in a High-Quality Printhead on a Dot-Matrix Printer? 24 | 24 Explanation: High-quality dot-matrix printheads can come in 9, 18, or 24 pins, with 24 being the highest quality. Incorrect answers: 15-pin is a number associated with the power connection of SATA as well as VGA connectors. 8-pin is associated with PCIe video cards and RJ45 plugs. 20-pin is the older standard for ATX main power connections, though today they are usually 24-pin. L., Prowse David. CompTIA A+ Practice Questions Exam Cram Core 1 (220-1001) and Core 2 (220-1002) (p. 66). Pearson Education. Kindle Edition. |
Power Consumption | The Brightest and Darkest Outputs Explanation: Contrast ratio is the brightness of the brightest color (measured as white) compared to the darkest color (measured as black). Static contrast ratio measurements are static; they are performed as tests using a checkerboard pattern. But there is also the dynamic contrast ratio, a technology in LCD displays that adjusts dynamically during darker scenes in an attempt to give better black levels. It usually has a higher ratio, but it should be noted that there is no real uniform standard for measuring contrast ratio. Incorrect answers: Power consumption deals with the number of watts that the display uses. Display resolution is the number of pixels on the screen, measured horizontally by vertically. Displays often have a brightness setting as well as a contrast setting. The brightness setting is used to increase or decrease the amount of light put out by the display. Power savings is another concept altogether and can be adjusted by enabling the power savings feature of the operating system, ultimately using fewer watts and conserving energy while increasing the life span of the display. L., Prowse David. CompTIA A+ Practice Questions Exam Cram Core 1 (220-1001) and Core 2 (220-1002) (p. 66). Pearson Education. Kindle Edition. |
Which of the following tools can protect you in the case of a Surge? Torx Screwdriver | Antistatic Strap |
Which of the following connectors can have audio and video pass through it? VGA | HDMI |
Switch | Router Explanation: A router can limit network broadcasts through segmenting and programmed routing of data. This is part of a router’s job when connecting two or more networks. It is also used with different media. For example, you might have a LAN that uses twisted-pair cable, but the router connects to the Internet via a fiber-optic connection. That one router will have ports for both types of connections. Incorrect answers: A switch connects multiple computers on the LAN; it does not limit IP-based network broadcasts. However, the switch does not segment by IP address; it communicates with computers and segments the network via MAC addresses. Also, the switch normally uses one type of media—twisted pair, connecting to RJ45 ports. However, it is possible that the switch might connect to another switch by way of a specialized fiber-optic connector. A wireless access point (WAP) connects the computers on the wireless LAN (WLAN). It often has only one connection, a single RJ45 port. A hardware-based firewall usually connects to the network via RJ45; regardless, it has only one or only a few connections. It doesn’t deal with routing or broadcasts; instead, it prevents intrusion to a network. L., Prowse David. CompTIA A+ Practice Questions Exam Cram Core 1 (220-1001) and Core 2 (220-1002) (p. 67). Pearson Education. Kindle Edition. |
Which of the following technologies can be used to make wireless payments? Bluetooth | NFC |
You just upgraded the CPU. Which of the following issues can make your computer shut down automatically after a few minutes? (Select the Best Answer) Wrong CPU Driver | The CPU has overheated. |
Which of the following addresses is a valid IPv4 address for a Network Host?
|
|
You want to upgrade memory in your computer. Which of the following is user-replaceable memory in a PC? CMOS BIOS DRAM SRAM ROM | DRAM |
Which of the following IP addresses is private?
|
|
Which of the following is the local loopback IPv6 address? 127.0.0.1 | ::1 |
Which of the following statements is correct concerning IPv6 addresses? They cannot be used with IPv4 | They represent addressing using 128 bits. |
60 Fahrenheit | 60 Celsius Explanation: A typical operating temperature for CPUs is 60° Celsius. Keep in mind that the operating range may be above or below that. Many computers hover around 30° to 35° Celsius. Incorrect answers: On the other hand, 72° Celsius becomes much less typical, even if the user is overclocking the system. A temperature of 60° Fahrenheit is equal to 15.5° Celsius. A processor will not run that cold (but it would be pretty efficient if it did!). A temperature of 72° Fahrenheit falls within the range of room temperature and is what you should set the room temperature for computers to run at their best. L., Prowse David. CompTIA A+ Practice Questions Exam Cram Core 1 (220-1001) and Core 2 (220-1002) (p. 69). Pearson Education. Kindle Edition. |
Which of the following printer technologies should be used to print payroll checks on paper forms that have carbon backing? Impact | Impact |
Which of the following is NOT a configuration that can be made in the UEFI/BIOS? Boot Sequence Temperature Thresholds Overclocking Install Drives Intrusion Detection | Install Drives Explanation: You cannot install drivers to the UEFI/BIOS. Drivers are software that allows the operating system to communicate with hardware; they can be configured in the Device Manager in Windows. Incorrect answers: The rest of the answers can be configured in the BIOS. The boot sequence (also known as boot priority or boot order) allows you to select which device will be booted off first. (The hard drive is the most secure.) Temperature thresholds allow you to set alerts and possibly shut down the system if the CPU runs too hot. Overclocking occurs when the CPU’s voltage is raised and the speed is increased. Overclocking is not recommended, but if you do configure it, you should set temperature thresholds. Intrusion detection can be enabled and will log if a person opened the computer case. L., Prowse David. CompTIA A+ Practice Questions Exam Cram Core 1 (220-1001) and Core 2 (220-1002) (p. 69). Pearson Education. Kindle Edition. |
Which of the following traits and port numbers are associated with POP3? (Select the Two Best Answers) Receives inbound email on Port 110 Receives inbound email on Port 25 Sends outbound email on Port 110 Sends outbound email on Port 25 Receives inbound email on Port 995 Sends outbound email on Port 587 | Receives inbound email on Port 110 | Receives inbound email on Port 995 |
Which type of cable should be used to connect a laptop directly to a PC? Cat 6 Patch Cable | Cat 5e Crossover Cable |
To perform a network installation of Windows, which of the following must be supported by the computer's network interface card? PXE | PXE Explanation: Network installations require that the network card be configured for Preboot eXecution Environment (PXE). This allows the network card to boot off the network, locate a network installation server, and request that the installation begin. This configuration might be done in the UEFI/BIOS of the computer (if the network adapter is integrated to the motherboard), within a special program in Windows, or in one that boots from disc or other removable media (if the network adapter is an adapter card). Incorrect answers: Peripheral Component Interconnect Express (PCIe) is an expansion bus that accepts video cards, network adapter cards, sound cards, and so on. PCL stands for Printer Command Language, developed by HP so that a computer can properly communicate with impact or thermal printers. PnP stands for plug and play, a Windows technology that allows devices to be located and installed automatically. L., Prowse David. CompTIA A+ Practice Questions Exam Cram Core 1 (220-1001) and Core 2 (220-1002) (p. 70). Pearson Education. Kindle Edition. |
Which of the following devices is the least likely to be replaced on a laptop? CPU | CPU |
100,000,000 bits per minute | 1,000,000,000 bits per second Explanation: 1000 Mbps is 1000 megabits per second, otherwise notated as 1,000,000,000 bits per second, or 1 gigabit per second. Incorrect answers: Data transfer is measured in bits per second (bps), not bits per minute. Consequently, 1000 bits per second would be very slow. At their peak, dial-up modems would transfer 56,000 bits per second, and that is considered the slowest Internet access you could find in the United States. L., Prowse David. CompTIA A+ Practice Questions Exam Cram Core 1 (220-1001) and Core 2 (220-1002) (p. 70). Pearson Education. Kindle Edition. |
Which of the following can send data the farthest? Multi-Mode Fiber | Single-Mode Fiber |
You need to expand the peripherals of a computer, but the system doesn't have enough ports. Which type of car should be installed? Modem | USB Card |
1000 Mbps | 7200 RPM Explanation: A typical speed of a magnetic hard disk drive is 7200 RPM—rotational speed, that is. Other common rotational speeds include 5400 RPM, 10,000 RPM, and 15,000 RPM. Note: Solid-state hard drives do not have a magnetic disk and therefore are not given an RPM rating or a latency rating. Incorrect answers: A common network data transfer rate is 1000 Mbps. SATA hard drives commonly have a DTR of 6 Gb/s (600 MB/s). Note that 3.1 GHz is a L., Prowse David. CompTIA A+ Practice Questions Exam Cram Core 1 (220-1001) and Core 2 (220-1002) (p. 71). Pearson Education. Kindle Edition. |
WHich of the following best describes the difference between a switch and a router? A Switch interconnects devices on the same network so they can communicate, a Router interconnects one or more networks. | A Switch interconnects devices on the same network so they can communicate, a Router interconnects one or more networks. |
DVD | LTO Explanation: In a large corporation (or enterprise environment), tape backup such as Linear Tape-Open (LTO) or Digital Linear Tape (DLT) is the best media for backing up. Incorrect answers: LTO and DLT tapes have a large capacity, allowing for a huge amount of backup as compared to DVD and dual-layer DVD (4.7–17 GB) and USB flash drives (typically 16 to 256 GB as of the writing of this book). L., Prowse David. CompTIA A+ Practice Questions Exam Cram Core 1 (220-1001) and Core 2 (220-1002) (p. 71). Pearson Education. Kindle Edition. |
The organization you work for has 3 Locations within a City that needs to be networked together. The network requirement for all 3 locations is a minimum data throughput of 1 Gbps. Which of the following network types are most likely to be used for internal office and office to office communications. (Select the Two Best Answers) LAN PAN WAN MAN SAN WLAN | LAN | MAN |
Which of the following is a type of Virtualization Software? On-Demand | VMware |
You need to replace and upgrade the memory card in a smartphone. Which type of memory is most likely used by the smartphone? SSD | SD |
Virtualization Workstation | Thin Client Explanation: In this scenario, the organization probably has thin client computers for its users. These computers have operating systems that are embedded in flash memory, and the rest of the information they require comes from a server. Thin clients normally have no hard drive; this is why they are referred to as diskless workstations. Incorrect answers: Virtualization workstations definitely need a hard drive and require lots of other resources; they are not as dependent on servers. Client/server is a type of networking organizational technique. However, thin clients often log in to a server. Thick clients are, for the most, part PCs, the typical desktop computer. L., Prowse David. CompTIA A+ Practice Questions Exam Cram Core 1 (220-1001) and Core 2 (220-1002) (p. 72). Pearson Education. Kindle Edition. |
Conditions the drum to be written to. | Conditions the drum to be written to. Explanation: Know the main steps of the laser printer imaging process: processing, charging, exposing, developing, transferring, fusing, and cleaning. In the charging step, the drum is conditioned/charged by the primary corona wire (negatively charging it) and is prepared for writing. In the transferring step, the paper is positively charged by the transfer corona wire, preparing it to accept the toner from the drum. Incorrect answers: In the fusing step, the toner is fused to the paper with heat and pressure. In the cleaning step (the last step), the receptacle, rollers, and other items are cleaned and readied for the next print job. L., Prowse David. CompTIA A+ Practice Questions Exam Cram Core 1 (220-1001) and Core 2 (220-1002) (p. 73). Pearson Education. Kindle Edition. |
Which of the following tools should be used to test a 24-pin ATX 12v Power connector? Torx Screwdriver | PSU Tester |
Which of the following uses Port 427? FTP DNS SLP HTTPS RDP | SLP |
Which of the following ports is used by AFP? 22 23 80 143 445 548 | 548 |
Which of the following does a laptop have yet a tablet does not? Touchpad | Touchpad |
At the beginning of the workday, a user informs you that her computer is not working. When you examine the computer, you notice that nothing is on the display. Which of the following should be done first? Check whether the monitor is connected to the computer. | Check whether the monitor is on. |
The computer has faulty memory. | The computer has faulty memory. Explanation: Chances are that the computer has faulty memory or a memory module that needs to be reseated properly. The flashing cursor on the screen tells you that the system is not posting properly. The numbers counting up are the system checking the RAM. If the system beeps and freezes during this count-up, the RAM has an issue. It could also be incompatible with the motherboard. Incorrect answers: A corrupt MBR would either give a message stating “missing OS” or “the MBR is corrupt.” However, most systems today are GPT-based, not MBR-based. If the OS was corrupted, you would get a message to that effect. If the computer attempts to boot off the network, you will see gray text and a spinning pipe sign as it attempts to find a DHCP server. L., Prowse David. CompTIA A+ Practice Questions Exam Cram Core 1 (220-1001) and Core 2 (220-1002) (p. 74). Pearson Education. Kindle Edition. |
Joey's computer was working fine for weeks, yet suddenly it cannot connect to the Internet. Joey runs the command ipconfig and sees that the IP address his computer is using is 169.254.50.68. Which of the following statements describes the most likely issue? The computer cannot access the DHCP server. | The computer cannot access the DHCP server. |
Which of the following could cause ghosted image on the paper outputted by a laser printer? Transfer corona wire | Photosensitive Drum |
Mary installed a new sound card and speakers; however, she cannot get any sound from the speakers. Which of the following statemetns describe the most likely cause? (Select All That Apply) The Speaker power is not plugged in. | The Speaker power is not plugged in. |
A Laptop with an integrated 802.11 WLAN card is unable to connect to any wireless networks. Just yesterday the laptop was able to connect to wireless networks. Which of the following statements describes the most likely cause? The wireless card drivers are not installed. | The wireless hardware button is turned off. |
The IP address of dprocomputer.com is 216.97.236.245. You can ping that IP address, but you cannot ping dprocomputer.com. Which of the following statements describes the most likely cause? dprocomputer.com is down. | The DNS Server is down. |
A Newly built computer runs through the POST, but it doesn't recognize the specific CPU that was just installed. Instead, it recognizes it as a generic CPU. Which of the following is the first thing you should check? Whether the CPU is seated properly. | The version of the Firmware for the Motherboard. |
Which of the following commands displays a network interface card's MAC Address? ping | ipconfig /all |
Reload the printer drivers. | Print an internal test page. Explanation: First, try printing an internal test page, meaning from the printer’s onscreen display. If that doesn’t work, you need to start troubleshooting the printer. Perhaps the toner cartridge is empty, or maybe a corona wire is malfunctioning. Incorrect answers: If the test page prints fine, you can check the printer drivers and other settings at the computer that uses the printer. Restarting the spooler should not help in this situation. If the spooler stalled, no paper should come out of the printer. Likewise, the printer cable should not have to be replaced. L., Prowse David. CompTIA A+ Practice Questions Exam Cram Core 1 (220-1001) and Core 2 (220-1002) (p. 76). Pearson Education. Kindle Edition. |
Signal strength for a laptops wireless connection is low (Yellow in color and only one bar). The laptop is on the first floor of a house. The wireless access point (WAP) is in the basement. Which of the following can improve the signal strength? (Select the Two Best Answers) Use a WAP signal booster. | Use a WAP signal booster. | Move the WAP from the basement to the first floor. |
You are troubleshooting a computer that can't communicate with other computers on the network. An ipconfig shows an APIPA IP Address (169.254.21.184). What is the most likely problem? DNS Resolution | DHCP Failure |
Which of the following is the first thing you should check when computer cannot get on the internet? NIC Driver | Patch Cable |
You just built a PC, and when it first boots, you hear some beep codes. If you don't have the codes memorized, which of the following are the best devices to examine first? (Select the Two Best Answers) RAM | RAM | Video Card |
Which of the following are examples of Virtual Printing? (Select the Two Best Answers) Start printing after the last page is spooled. | Print to XPS | Print to PRN |
A Coworker needs to print to a printer from a laptop running Windows. The printer has a USB and an Ethernet connector. Which of the following is the easiest way to connect the printer to the Laptop? Use the Thunderbolt Port | Use the USB Connector |
You have had several support requests for a PC located in a school cafeteria kitchen that is experiencing a problem. You have already reseated the PCIe and PCI cards and replaced the hard drive in the PC. Computers located in the business office or the classrooms have not had the same problem as the computers in the cafeteria. Which of the following is the most likely issue? Excessive Heat | Excessive Heat |
A User complains that his network interface card (NIC) is not functioning and has no link lights. The weather has been changing drastically over the past few days, and humidity and temperatures have been rising and falling every day. Which of the following could be the direct cause of this problem? (Select the Best Answer) Thermal expansion and contraction | Thermal expansion and contraction |
Which network type enables high-speed data communication and is the most difficult to eavesdrop on? Satellite | Fiber Optic |
Which of the following properties of a heat sink has the greatest effect on heat dissipation? Connection Type | Surface Area |
You need to setup up a server system that will run in a VM. It will have the bulk of the Network Computers' resources and will supply much of the resources necessary to the client computers that will connect to it. You are also required to set up the Client computers. Which two types of systems (Server and Client) will you be implementing? CAD/CAM workstation and PCs | Virtualization Workstations and Thin Clients |
Your boss can receive email but can't seem to send email with the installed email client software. Which protocol is not configured properly? SMTP | SMTP |
A Customer's laptop LCD needs replacement. Which of the following tools should be used to remove the display bezel? Pliers | Plastic Shim |
One of your customers is running Windows on a PC that has a 3.0-GHz CPU, 16-GB RAM, and an integrated video card. The customer tells you that the performance is slow when editing video files. Which of the following solutions increases performance on the computer? Increasing System RAM | Upgrading the Video Card |
Which of the following is configured in the UEFI/BIOS? (Select the FOUR Best Answers) Time and Date The Registry Boot Sequence Passwords USB Drivers WOL | Time and Date |
You want to test whether IPv4 and IPv6 are working properly on a computer. Which of the following commands should be issued? ipconfig ::1 and ping ::1 | ping 127.0.0.1 and ping ::1 |
300 MB/s | 4.2 ms Explanation: The typical latency of an SATA magnetic-based hard disk drive is 4.2 ms (milliseconds). When you are dealing with magnetic drives, latency is the delay in time before a particular sector on the platter can be read. It is directly linked to rotational speed. A hard drive with a rotational speed of 7200 RPM has an average latency of 4.2 ms. Incorrect answers: Note that 300 MB/s is the data transfer rate of an SATA revision 2.0 hard drive; it is also expressed as 3.0 Gb/s. Also, 7200 RPM is the rotational speed of the drive, and 64 MB is a common amount of cache memory on a hard drive; it is usually DRAM. L., Prowse David. CompTIA A+ Practice Questions Exam Cram Core 1 (220-1001) and Core 2 (220-1002) (p. 80). Pearson Education. Kindle Edition. |
The marketing printer has been used for four years. Which of the following statements represents a best practice for ensuring the printer remains in good working order? You should clean the printer. | You should install a Maintenance Kit |
A Customer wants users to be able to store additional files in a cloud-based manner when necessary and remove them when they are not needed anymore. What is this known as? Resource Pooling Virtual Application Streaming Shared Resources On-Demand Synchronization Application | On-Demand Explanation: On-demand means that a customer can get access to cloud-based services 24 hours a day, 7 days a week and that the customer can get additional space if needed on a temporary basis. This links with scalability to a certain extent. Incorrect answers: Resource pooling occurs when resources (RAM and CPU), servers, and infrastructure are shared by multiple customers. However, shared resources, in general, are resources that are shared for use by remote users. Virtual application streaming refers to applications (such as email clients) that are served from a cloud provider and run within a virtual machine or instance of some sort. Synchronization applications are programs that will aid in the synchronization of data between a client and a server on the cloud. For example, a single synchronization program might take care of the sync of data for several programs, such as email, calendar, and contacts. L., Prowse David. CompTIA A+ Practice Questions Exam Cram Core 1 (220-1001) and Core 2 (220-1002) (p. 80). Pearson Education. Kindle Edition. |
You are troubleshooting a computer that is no longer able to browse the Internet. The user says that the computer worked before he went on Vacation. However, now the user is able to navigate the local internet but cannot connect to any outside sites. You ping a well-known website on the Internet by name, but you receive no replies. Then you ping the websites IP address, and you do receive a reply. Which of the following commands will fix the problem? ipconfig /flushdns | ipconfig /flushdns |
Volts | Watts Explanation: The thermal design power (TDP) of a CPU is measured in watts. For example, a typical Core i7 CPU might be rated at 140 watts or less. The less the wattage rating, the less the computer’s cooling system needs to dissipate heat generated by the CPU. Incorrect answers: Volts is potential energy; it is a measurement commonly associated with internal PC components running at 5- or 12-volt DC and with typical household and business AC outlets running at 120 volts or 240 volts. Ohms is the measurement used for impedance, or the resistance to electricity. Amps is the measurement for electric current. A typical computer might use 4 amps of current if it has a 500-watt power supply. L., Prowse David. CompTIA A+ Practice Questions Exam Cram Core 1 (220-1001) and Core 2 (220-1002) (pp. 81-82). Pearson Education. Kindle Edition. |