Errata
p. 189 The answer for question 5 states “A. Which keystroke used to…” but should read “D. Which keystroke used to…”
p. 244 Second 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. 244 Figure 7.13 should be:
UPS
p. 257 Second 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. 268 Next to last 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. 279 First sentence of the note, “than SATA and NVMe drives” should be removed.
pp. 334 – 335 In the sentence that begins at the end of page 334, “The Run Command for Disk Management, dskmgmt.msc, allows you” should read “The Windows utility Disk Management (dskmgmt.msc) allows you”
p. 364 Sentences five (beginning “One common problem”) and six in the first paragraph 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.”
p. 364 The fourth paragraph (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. 385 “Chrome” should read “ChromeOS” in the first sentence of the third paragraph, the second sentence of the fifth paragraph, and the third sentence of the eighth paragraph.
p. 385 The fourth 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). Pointing devices and operating systems are too varied and configurable for there to be any completely universal gestures, but a few are fairly common. For example, you can usually scroll around a page by swiping two fingers up or down on a touchpad and zoom in or out with a pinching motion. Want to see all open windows at once? Try swiping up with three fingers.”
p. 430 Last paragraph, next-to-last sentence (that starts “You can combine…”) should be removed.
p. 454 Question 6, “alongside” should read “on top of”.
p. 455 The answer for question 6 states “C. An OS added to…” but should read “B. An OS installed on top of…”
p. 469 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.”
p. 493 Sentences two and three in the second paragraph 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. 502 In the final sentence of the last paragraph, “without” should read “with”.
p. 508 All instances of “standard account” in the first paragraph should read “user account”.
p. 508 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. 509 All four instances of “standard account” in the final paragraph should read “user account”.
p. 510 Every instance of “standard account” should read “user account” in the note at the top of the page and the second paragraph of the “Groups” section.
p. 511 The first bullet on the page should read:
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. 511 The “Guests group” bullet should have been titled simply “Guests”.
p. 511 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. 512 In the 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. 513 In the first paragraph, “Let’s add the JimT standard account” should read “Let’s add the JimT account”.
p. 516 The first sentence 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. 517 In the last sentence on the page, “use these” should read “meet”.
p. 518 At the end of the second sentence of the first 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. 518 In the second sentence of the second 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. 520 In the fourth sentence of the second paragraph, “it can’t be a number pattern.” should read “it can’t be a number pattern (such as 111111 or 123456).”
pp. 522 – 523 The list of folder permissions spanning the page break 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:”
pp. 525 – 526 The first four items of the list that spans the page break 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 on page 526.
p. 538 The third sentence of the last paragraph on the page was left in by mistake. Remove it.
p. 539 The first sentence of the last paragraph should begin, “Microsoft implemented a feature called User Account Control (UAC)“.
p. 547 The first sentence should begin “A program such as the Wireshark installer shown in Figure 13.38”
p. 548 Question 7 should read “Which group cannot edit the Registry or access system files? (Members can also create groups and manage ones they created.)”
p. 549 The answer for question 1 should read “A. Authentication entails identifying a user and giving them access to the system, while authorization goes on to specify what they can or cannot do within the system.”
p. 549 The answer for question 6 states “B. Almost as powerful as…” but should read “C. Almost as powerful as…”
p. 549 The answer for question 7 should read “B. The Users group (which Standard Accounts are members of) cannot edit the Registry or access system files. Windows doesn’t have a Standard User group.”
pp. 595 – 650 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 second note on page 600, 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. 606 In the first sentence of the last paragraph, “Any of these commands searches” should read “The man command searches”
p. 611 In the first line of the next-to-last code example, “mike@server:~$ cd obiwan” should read “mike@server:~$ cd Obiwan”
p. 626 In the last sentence of the gpupdate section, “gpudate” should read “gpupdate”
p. 638 In first sentence of the second paragraph, “In Windows,” should read “Same as in Windows,”
p. 639 The “Language” cell for the third row of Table 15-1 should read “Unix shell script”
p. 650 The answer for question 6 states “A. ps is the UNIX command…” but should read “C. top is the Unix command…”
p. 693 In the fourth sentence of the first full paragraph, “132-144 inches feet away” should read “132-144 inches away”.
p. 733 In the answer to question 1, “from pure black to pure white and back again” should read “from one state to another”.
p. 733 The answer for question 6 should read: “6. C. At least until the price of HBM comes down, you’re most likely to find GDDR in recent high-end graphics cards.”
p. 810 The last paragraph 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. 863 Answer choice C for question 6 is “WAP” but should be “MIMO”
p. 895 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. 896 The first three sentences of the first 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. 974 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. 1001 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. 1002 Question 5 should read “A type of output device that detects the locations and duration of contact, usually by a finger or stylus.”
p. 1003 The explanation for answer 5 should read “A touchscreen is a type of output device that also accepts input from a finger or stylus.”
p. 1079 In the first sentence of the third paragraph of the “Dealing with Loss” section, ‘As we discussed in the “System Lockout” section earlier,’ should read “Since many people don’t use terribly strong screen locks,”
p. 1138 The second sentence of the “Tray settings” bullet in the “Paper” section should read: Many printers have the option to “automatically select” a tray with paper that matches the dimensions specified in the print job.
pp. 1145 – 1146 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. 1146 The last three sentences of the first full 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. 1147 In the last sentence of the second 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;”