Errata
p. 204 Figure 7.13 should be:
UPS
p. 205 First paragraph, last two sentences should read “Unlike the batteries in portable devices, a UPS (or battery backup) won’t have enough juice to keep your game session chugging along. They just buy you a few minutes to shut down safely or start a generator.”
p. 213 First full paragraph, sentences 3 – 5 (“This is where knowing … 300W of power internally.”) should read “The best way to make sure a power supply provides enough juice for your hardware is to check its wattage rating—the number of watts the PSU can actually provide to your system. To make sure it can support all of the device types, you’ll have to count up the number of each connector that you need and confirm the PSU has enough of each.”
p. 221 Second paragraph should read “Organizations provision critical servers with redundant components to keep them running when one component fails. For example, a redundant power supply (RPS) combines two hot-swappable power supply units (see Figure 7.42). If one unit stops working, the system fails over to depend on the second. Some servers will draw power from both power supplies equally as long as they are healthy (often called “balanced mode”); others keep the second unit idle as a hot standby until it’s needed.”
p. 232 First sentence of the note, “than SATA and NVMe drives” should be removed.
p. 226 In Multiple Choice question 11, answers B and C, “red-hot” should read “red (hot)”
p. 276 In sentence three of paragraph three, “The Run Command for Disk Management, dskmgmt.msc, allows you” should read “The Windows utility Disk Management (dskmgmt.msc) allows you”
p. 297 Sentences five (beginning “One common problem”) and six in the first paragraph of the “Dying Hard Drive” section should read: “Some common symptoms you start seeing are extended read/write times and read/write failures (or even the kinds of data corruption that write failures can cause). Other signs that the hard drive might be dying are that the drive works properly but makes a lot of noise or the drive disappears from the operating system.”
pp. 297 – 298 The paragraph that starts at the bottom of page 297 (beginning “Another way you can tell”) should read: “If your hard drives are in a server or storage enclosure, the front of the enclosure may have status light-emitting diodes (LEDs) for each drive. In my experience it’ll have a green activity LED that blinks when drives push data around, and a status LED (often amber or red) that tells you if the bay has a drive, a RAID array is rebuilding, or if you’re about to find out if your backups work. In theory the status LED can indicate a failure before it happens, but I’ve never been that lucky.”
p. 303 The second full bullet in the right-hand column (beginning “Another way you can tell”) should read: “If your hard drives are in a server or storage enclosure, the front of the enclosure may have status light-emitting diodes (LEDs) for each drive. In my experience it’ll have a green activity LED that blinks when drives push data around, and a status LED (often amber or red) that tells you if the bay has a drive, a RAID array is rebuilding, or if you’re about to find out if your backups work. In theory the status LED can indicate a failure before it happens, but I’ve never been that lucky.”
p. 320 In the first sentence of the fourth paragraph, “Chrome” should read “ChromeOS”
p. 320 The first two sentences of the fifth paragraph should read “Most modern touchpads and touchscreens support multi-touch gestures (a gesture is an extra command like zooming in or navigating back that you trigger by moving your hand or fingers in some pattern).”
p. 321 “Chrome” should read “ChromeOS” in the third sentence of the last paragraph.
pp. 344 – 345 The answers for questions 8 and 9 in the key term quiz are not included in the key term list. The correct answer for question 8 is “USB controller resource warning” and the correct answer for question 9 is “mp4”.
p. 356 Last paragraph, next-to-last sentence (that starts “You can combine…”) should be removed.
p. 375 Key term “multiboot installation” should be removed.
p. 376 Question 3, “alongside” should read “on top of”.
p. 389 Exam Tip should read “The CompTIA A+ 1102 objectives ask about scenarios where you’d use the System applet, which used to open the System Properties dialog. I’m not sure if CompTIA wants you to know that it now links to the About section of the Settings app—in which case you’d use it to learn basic information about the system and Windows—or if they want you to know about the System Properties dialog. Keep this in mind when you take a closer look at the System Properties dialog box in Chapter 14. Prepare for questions about the System applet leading to either.”
pp. 408 – 409 Sentences two and three in the paragraph that starts at the bottom of page 408 should read “Your Basic Windows Toolset includes most of the tools you need to set up or reconfigure a Windows 10 or Windows 11 computer. Your Processes, Applications, and Services tools are the ones you’ll turn to when a system misbehaves—they enable you to inspect, troubleshoot, and manage the software running on your systems.”
p. 417 In the final sentence, “without” should read “with”.
p. 425 All instances of “standard account” in the second paragraph should read “user account”.
p. 425 The “Standard Accounts” section should have been titled “User Accounts” and the first sentence should read “Every user account has a username and password…”
p. 426 All four instances of “standard account” in the second full paragraph should read “user account”.
p. 426 Every instance of “standard account” should read “user account” in the second note (a little over halfway down the page) and the second paragraph of the “Groups” section.
p. 427 The second and third bullets on the page should be a single two-paragraph bullet reading:
Users Members of the Users group cannot edit the registry or access critical system files. They may create groups but can manage only groups they create. While all users are members of this group, there’s a special name for members of _just_ this group: __standard accounts__ (or _standard users_).
If you change the Jane account from administrator to standard user, you specifically take the Jane account out of the Administrators group (the Jane account is already in the Users group). Nothing happens with her personal files or folders, but what the Jane account can do on the computer changes rather dramatically.
p. 427 The “Guests group” bullet should have been titled simply “Guests”.
p. 427 In the next-to-last sentence of the “Standard Account and Elevated Privileges” section, “your standard account level” should read “your user account’s level”.
p. 428 In the second paragraph below figure 13-2, “Create a standard account by clicking the whitespace below the existing standard accounts” should read “Create a new user by clicking the whitespace below the existing users”.
p. 429 In the first paragraph, “Let’s add the JimT standard account” should read “Let’s add the JimT account”.
p. 431 The first sentence of the second paragraph should begin “The User Accounts Control Panel utility in Windows 10”. The final sentence of the paragraph should also be removed. (We will discuss the UAC later, but this paragraph is _not_ referring to it.)
p. 433 In the last sentence of the fourth paragraph, “use these” should read “meet”.
p. 433 At the end of the second sentence of the fifth paragraph, “using each character type increases the work effort of the cracking attempt and thus serves as a deterrent” should read “can buy you hours or days”.
p. 433 In the second sentence of the sixth paragraph, “This can be enforced with an _expiration requirements_ policy that forces users” should read “This can be enforced with _expiration requirements_ that force users”.
p. 434 In the fourth sentence of the second full paragraph, “it can’t be a number pattern.” should read “it can’t be a number pattern (such as 111111 or 123456).”
p. 436 The list of folder permissions (the first list on the page) should be two separate lists of folder and file permissions. Before the second “Full Control” item should be a paragraph reading “NTFS file permissions are similar (but not identical) to folder permissions:”
p. 438 The first four items of the bulleted list should read:
- Copying data within one NTFS-based volume
- Moving data within one NTFS-based volume
- Copying data between two NTFS-based volumes
- Moving data between two NTFS-based volumes
The list should have ended there. It should be followed by a paragraph reading: “Let’s look at a list of things techs need to know to see what happens when you copy or move an object, such as a file or folder.”
Finally, this paragraph should be followed by the last four items in the list.
p. 448 The third sentence of the second paragraph on the page was left in by mistake. Remove it.
p. 448 The first sentence of the next-to-last paragraph should begin, “Microsoft implemented a feature called _User Account Control (UAC)_”.
p. 453 The first sentence of the first full paragraph should begin “A program such as the Wireshark installer shown in Figure 13.38”
p. 455 Remove the third bullet in the right-hand column, which was inadvertently left in after the text it summarizes was cut.
p. 457 Answer choice D of question 7 should read “Users Group”.
p. 584 In Figure 17.8, the Ultra-short throw distance should read ’15″‘, the Short throw distance should read ’48″‘, and the Normal throw distance should read ‘132-144″‘. Likewise the fourth and fifth sentence of the second full paragraph should read: A standard-throw projector needs to be 132-144 inches away from the projection surface. A short-throw projector needs just 48 inches, and an ultra-short throw projector needs a mere 15 inches away (although such a lens is expensive).
pp. 494 – 547 As written, Chapter 15 used the term “UNIX” only to refer to the old AT&T operating system, and the terms “Unix”, “Unix-like” and “Unixes” to refer to the broad family of operating systems it inspired (including macOS and Linux). An overzealous editor replaced every instance of the latter in this chapter with “UNIX”, “UNIX-like”, and “UNIXes”.
The note on page 497, for example, should have read: “Linux and macOS are so similar because they are both heavily influenced by the old UNIX operating system. It may not be obvious from their GUIs, but the relationship is clear at the command line. Throughout this chapter I’ll use “Unix” or “Unix-like” or “Unixes” when Linux and macOS are equivalent and I’ll call them out by name when they differ.”
Since it isn’t practical to list all 100+ of these, the best way to read the chapter is to assume each reference to UNIX is talking about the broader family of operating systems.
p. 503 In the first sentence of the second paragraph, “Any of these commands searches” should read “The man command searches”
p. 506 In the first line of the next-to-last code example, “mike@server:~$ cd obiwan” should read “mike@server:~$ cd Obiwan”
p. 520 In the last sentence of the gpupdate section, “gpudate” should read “gpupdate”
p. 530 In first sentence of the next-to-last paragraph, “In Windows,” should read “Same as in Windows,”
p. 532 The “Language” cell for the third row of Table 15.1 should read “Unix shell script”
p. 677 The second paragraph under “Domain Administration” should read “To join a computer to a domain, open the System Settings app and proceed to System > About. In Windows 10, click Rename this PC (advanced) in the Related settings links; in Windows 11, click Domain or workgroup in the Related links. In Windows 10 and 11 this will open the System Properties dialog. Click the Network ID button on the Computer Name tab to open the wizard shown in Figure 19.37. (You can also click the Change… button to do this without a wizard.) Make sure you have access to a Domain account that can join the domain!”
p. 746 The second bullet in the list of browser data should read “Data that sites save as we browse (i.e., cookies and local storage)”
p. 746 The first three sentences of the last paragraph should read “Each browser handles this data a little differently, but they all have some way to delete the data and some settings to control what kinds of data can be collected or how long it’s kept. If the idea of a snoop or bad guy getting their grubby hands on your private data turns your stomach, tightening these settings and/or regularly clearing cache and browsing data is a good bet.”
p. 812 The Exam Tip should read “Over time, the lines between docking station, port replicator, and dongle have blurred, and you’ll hear the terms used interchangeably in the IT world. Nonetheless, there are distinctions between docking stations and port replicators. The most important is that a docking stations live at your desk with all of the full-sized peripherals you need to get work done already connected. You walk in the door, plop your laptop down, make a single connection, and everything’s ready to go. This also helps avoid putting a lot of undue stress on your ports by connecting and disconnecting each one every day. They also typically power or charge the portable you connect. Port replicators give you extra ports while you’re out and about, but they tend to be smaller and draw power from the portable. Keep these differences in mind when you’re taking the CompTIA A+ exam.”
p. 834 The Exam Tip should read “Cursor drift (a cursor that drifts steadily in one direction) is mainly caused by software (calibration) issues. It could also just be a stray device (like that Bluetooth mouse in my backpack), or some kind of device damage (like water or an impact knocking something loose)—but these usually cause erratic movement. I always restart the program or reboot the system first. If it’s a touch device, give the touch calibration routine a try. If neither of these help, the device is probably damaged and needs to be replaced.”
p. 898 In the first sentence of the third paragraph under “Dealing with Loss,” ‘As we discussed in the “System Lockout” section earlier,’ should read “Since many people don’t use terribly strong screen locks,”
p. 911 The third bullet in the right-hand column summarizes a section that was removed during editing. It should have been removed at the same time.
p. 947 The second sentence of the “Tray settings” bullet at the top of the page should read: Many printers have the option to “automatically select” a tray with paper that matches the dimensions specified in the print job.
p. 952 The text of the “Grinding Noises” section should read “When a printer makes awful grinding noises, there’s almost certainly something (paper, debris, fragments of a broken component, or even just a mis-installed replacement part) in the way of one of a printer’s many mechanical components (rollers, belts, gears, print-heads). If you just replaced a part, ensure it’s seated right. If not, open the printer to see what’s stuck.”
p. 952 The last three sentences of the last paragraph should read “You open up the finisher (HP calls this a stapling mailbox), remove the staple cartridge, clear any jammed staples, then reinsert the staple cartridge into the finisher. The main problems with a hole punch are: the tray that catches the punched-out bits of paper eventually fills up and needs to be emptied, or it mis-punches your prints if the paper isn’t snug and well-aligned in the tray.”
p. 953 In the last sentence of the last Note, “place them in a plastic bag and deposit into a green recycle bin;” should read “see if your city has its own electronic waste recycling program;”