comptia a complete deluxe study guide pdf free download
CompTIA A+ Complete Study Guide phần 2 pdf
Ngày tải lên :
10/08/2014, 12:21
... bidirectional parallel port has one important advantage over a standard
parallel port: It can both transmit and receive data. These parallel ports are capable of interfac-
ing with such devices as external ... and Characteristics
of Adapter Cards
An adapter card (also known as an expansion card) is simply a circuit board you install into
a computer to increase the capabilities of that computer. Adapter ... multithreading (SMT). SMT takes advantage of a modern CPU’s super-
scalar architecture. Superscalar processors are able to have multiple instructions operating on
separate data in parallel.
HTT-capable...
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CompTIA A+ Complete Study Guide phần 1 potx
Ngày tải lên :
10/08/2014, 12:20
... aspects and importance of safety and environmental issues
Identify potential safety hazards and take preventative action
Use Material Safety Data Sheets (MSDS) or equivalent documentation and ... upgrade and optimize hardware, software and data security for example:
BIOS
Smart cards
Authentication technologies
Malicious software protection
Data access (basic local security ... you’ll find sample exams
for each of the A+ exams. Take these practice exams just as if you were actually taking the A+
exams (without any reference material).
Depending on what edition of...
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CompTIA A+ Complete Study Guide phần 3 potx
Ngày tải lên :
10/08/2014, 12:21
...
commonsense approach: They designed their handhelds to use standard AA batteries.
Most notebook computers can also use AC power with a special adapter (called an AC
adapter) that converts AC power into ... examining some preventative maintenance recommen-
dations and issues.
Exam Essentials
Know how many pins an IDE/PATA/ATA-5/ATA-6 cable has. A cable for use with these
technologies has 40 pins. You’re ... Another primary concern is heat. Restricted space means less airflow, meaning parts
can heat up and overheat faster.
To overcome space limitations, laptop parts are physically much smaller and lighter,...
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CompTIA A+ Complete Study Guide phần 5 pot
Ngày tải lên :
10/08/2014, 12:21
... the administrator.
3. If updates are available, they are downloaded automatically in the background.
4. Once the updates are downloaded, Windows Update notifies you that the download is
complete ... you make
a backup, ensure that you can read from it. If you’ve just backed up a small amount of data,
restore it to an alternate location and make sure you can read it. If you are backing up ... HAL, or the Hardware Abstraction Layer, is the translator between the hardware and the
operating system.
20. B. Task Manager will show you a list of running processes and applications and allow...
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CompTIA A+ Complete Study Guide phần 6 docx
Ngày tải lên :
10/08/2014, 12:21
... and wide area. Local wireless is usually available
within a particular room or building only. Once you leave that area, it is no longer available. Local
wireless has an operating range of around ... through a layer, the layer tacks its information
TABLE 8.1 Topologies—Advantages and Disadvantages
Topology Advantages Disadvantages
Bus Cheap. Easy to install. Difficult to reconfigure. Break in ... data, and controls the flow of data. It can also receive and translate data
into bytes for the CPU to understand. It communicates at the Physical layer of the OSI model and
comes in many shapes...
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CompTIA A+ Complete Study Guide phần 7 potx
Ngày tải lên :
10/08/2014, 12:21
... potential safety hazards and take preventative
action
Use Material Safety Data Sheets (MSDSs) or equivalent
documentation and appropriate equipment documentation
Use appropriate repair ... body and
keeps it at a zero charge. Figure 10.3 shows the proper way to attach an anti-static strap. There
are several varieties of wrist straps available. The one in Figure 10.3 uses a banana ... in any way for exercising their rights
under the Occupational Safety and Health Act.
Safety Plans
It’s recommended that your company create and follow a workplace safety plan. Having a
safety...
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CompTIA A+ Complete Study Guide phần 8 pot
Ngày tải lên :
10/08/2014, 12:21
... were all the rage a few years ago and are still popular today. Also readily
available are infrared keyboards and printers. Perhaps some of the most useful infrared
devices are keyboards for PDAs. ... occur and the
device is unavailable.
Certain DMA channels are assigned to standard AT devices. DMA is no longer as pop-
ular as it once was, because of advances in hardware technology, but it is ... access (DMA) allows a device to bypass the CPU and place data directly into
RAM. To accomplish this, the device must have a DMA channel devoted to its use.
All DMA transfers use a special area of...
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CompTIA A+ Complete Study Guide phần 9 doc
Ngày tải lên :
10/08/2014, 12:21
... several years ago.
Calibrating Scanners
Scanners may need to be color calibrated with the monitor so that what scans in is accurate to
what’s on screen. Many include a test pattern that can be ... active partition. Often this is also a primary partition
and the first partition created on a hard drive.
4. D. A logical partition is any partition that has a drive letter. It can be primary, active, ... fixed easily, or the fix may result
in only a temporary solution. Usually such a case calls for a complete formatting and reinstalla-
tion of the OS and applications, and restoration of data. However,...
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Tài liệu Troy Technologies USA A+ certification study guide pdf
Ngày tải lên :
11/12/2013, 14:15
... electrical charge?
A: Capacitor
419.
A parity error usually means a problem with?
A: Memory (RAM)
21
A: Perform a full backup
254.
What is the cheapest way to access the Internet?
A: Dial Up access
255.
... of RAM and what?
A: A swap file
445.
Memory that is paged out to the hard drive is known as what?
A: virtual memory
Congratulations!!
You have purchased one of the Troy Technologies USA Study ... AUTOEXEC.BAT?
A: DOSKEY
40.
Which allows faster access; RAM, ROM, or virtual memory?
A: RAM
41.
What batch file command will stop a batch file operation until a key is pressed?
A: PAUSE
42.
What...
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A Six part study guide to Market profile Part 3 pdf
Ngày tải lên :
02/07/2014, 06:20
... market's natural organization are the
AtTheMarket'sNatural most relevant reference points a trader can have. Only two things
Parameters can happen when the market reaches these areas: ... rotations create a much weaker parameter-one that can
be violated more easily than a parameter formed by a directional
move. As the rotations become narrower, it shows that the longer-
term trader ... in a sharp move. I want to emphasize again, however,
that the dynamics in each case are different.
After a surprise, price generally moves back to value in the near-
term because there hasn't...
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