comptia a complete study guide second edition pdf
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...
- 98
- 478
- 0
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 ... 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 ... upgrade and optimize hardware, software and data security for example:
BIOS
Smart cards
Authentication technologies
Malicious software protection
Data access (basic local security...
- 99
- 455
- 0
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,...
- 98
- 410
- 0
CompTIA A+ Complete Study Guide phần 5 pot
Ngày tải lên :
10/08/2014, 12:21
... 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 ... 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...
- 98
- 435
- 0
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...
- 98
- 1.1K
- 0
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...
- 98
- 877
- 0
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...
- 98
- 433
- 0
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,...
- 98
- 1.3K
- 0
CompTIA A+ Complete Study Guide phần 10 ppsx
Ngày tải lên :
10/08/2014, 12:21
... threat. Fortunately, these attacks require fairly
sophisticated software and are harder to engineer than a DoS attack, such as a TCP SYN attack.
UDP Attacks
A UDP attack attacks either a maintenance ... social engineering attack, an attacker might pretend to be a company technician, call
an employee, and ask her to reveal her username and password. Knowing what to say and what
not to say will ... creates an entrance for an attacker. The program may allow a certain user ID to
log on without a password or to gain administrative privileges.
Such an attack is usually used as either an access...
- 105
- 440
- 0
Mcgraw hill all in one cisco ccie lab study guide second edition
Ngày tải lên :
14/03/2014, 15:12
...
Research Triangle Park, North Carolina, USAã
Halifax, Nova Scotia, Canadaã
Chatswood, NSW, Australiaã
Brussels, Belgiumã
Beijing, Chinaã
Sao Paulo, Brazilã
Bangalore, Indiaã
Seoul, Koreaã
Tokyo, ... combination written as CTRL^X).
The escape character can be changed to any ASCII value with the terminal escape−character command.
Each line on the terminal server can have a different escape character; ... locations. The exams are standardized among sites, and selecting the location is a matter of
geographical preference.
CCIE Routing and Switching Lab Locations
San Jose, California, USAã
Research...
- 896
- 2.5K
- 0
Tìm thêm:
- hệ việt nam nhật bản và sức hấp dẫn của tiếng nhật tại việt nam
- xác định các mục tiêu của chương trình
- xác định các nguyên tắc biên soạn
- khảo sát các chuẩn giảng dạy tiếng nhật từ góc độ lí thuyết và thực tiễn
- khảo sát chương trình đào tạo của các đơn vị đào tạo tại nhật bản
- khảo sát chương trình đào tạo gắn với các giáo trình cụ thể
- xác định thời lượng học về mặt lí thuyết và thực tế
- tiến hành xây dựng chương trình đào tạo dành cho đối tượng không chuyên ngữ tại việt nam
- điều tra đối với đối tượng giảng viên và đối tượng quản lí
- điều tra với đối tượng sinh viên học tiếng nhật không chuyên ngữ1
- khảo sát thực tế giảng dạy tiếng nhật không chuyên ngữ tại việt nam
- khảo sát các chương trình đào tạo theo những bộ giáo trình tiêu biểu
- nội dung cụ thể cho từng kĩ năng ở từng cấp độ
- xác định mức độ đáp ứng về văn hoá và chuyên môn trong ct
- phát huy những thành tựu công nghệ mới nhất được áp dụng vào công tác dạy và học ngoại ngữ
- mở máy động cơ lồng sóc
- mở máy động cơ rôto dây quấn
- các đặc tính của động cơ điện không đồng bộ
- hệ số công suất cosp fi p2
- đặc tuyến hiệu suất h fi p2