- Overview of the A+ Exams and 220-604. - Overview of the Network+ Exam. - The focus of this bookis on providing the core knowledge to prepare you for the two A+ exams—the Network+ exam and the Security+ exam. - Identify the names, purposes and characteristics of the following storage devices:. - Identify the names, purposes, and characteristics of the following mother- boards:. - Verify installation of the driver (e.g., device manager and functionality). - Verify functionality and get user acceptance of the problem fix. - Identify names, purposes, and characteristics of the common network cables:. - Most of the new motherboards fall into this category.. - The disadvantage is that the inside of the computer is full of adapters and wires. - Form Factor refers to the design of the motherboard. - The External Cache runs at the speed of the system bus.. - Many of the standard I/O controllers for peripherals are inte- grated in the motherboard. - Their connectors are accessible from the rear of the computer case and are used to connect I/O devices. - Depending on the motherboard, these connectors can be any of the following types:. - Some of the common connector types are listed in the following paragraphs:. - The processor, or the central processing unit (CPU), is the heart of the computer.. - The hard diskdrive subsystem of the computer consists of the following three components:. - USB 2.0 is the latest version of the USB standard. - It is located on top of the CPU heat sink.. - Keeping the CPU cool is very critical for the normal operation of the computer. - An SCSI drive can be an internal or external drive, depending on the hardware configuration of the computer. - Refer to the user manual of the monitor to adjust brightness, contrast, and color levels. - Some of the software tools include the following:. - Most problems with memory modules (RAM) can be identified from the slow response of the computer. - If one of the memory modules has failed, the computer performance will go down. - Most problems with CD and DVD drives are related to media, i.e., the disc itself. - Some of the preventive maintenance methods for power supply are as follows:. - Regular cleaning of the computer’s power supply unit. - Dust accumulated on the sides of the keys can be blown out using compressed air. - The design of the motherboard largely depends on the laptop case. - Aspect ratio refers to the ratio of width and height of the screen. - which you can change the screen resolution depending on the frequency of the video signal. - A mismatch of the video interface and the LCD screen may cause a distortion in the display.. - The G0 state specifies the normal working state of the computer. - Checkthe small LED on top of the adapter. - Some problems directly relate to the alignment of the stylus pen. - Most of the discussion in this section is related to. - Some of the main variations of Linux OS are as follows:. - This section provides a brief discussion of some of the main interfaces.. - Change the Properties of the Start Menu and the Taskbar. - Some of the common menu items are listed in the following paragraphs:. - Table 2-5 lists some of the common utilities available in the Control Panel.. - Some of the benefits of using NTFS are as follows:. - This opens the Sharing tab of the folder properties. - The components of the computer should be compatible with the operating system you have selected to install. - Depending on the currently installed OS on the computer, you can use one of the following utilities:. - Some of the essential tasks asso- ciated with installing devices are covered in the following sections.. - The two buttons on the bottom of the screen give you the following two options:. - The System Restore can be accessed in one of the following methods:. - You will need a blank floppy disk and a full backup of the system partition of the computer. - The text of the error message reads as:. - This utility is a part of the Computer Management console. - A user can configure Windows Update options in one of the following ways:. - This assembly is used to move the paper through different parts of the printer.. - Inkjet printers consist of the following components:. - A stabilizer bar ensures that the movement of the printhead is precise.. - The printing process starts with the cleaning of the printhead.. - Some of the commonly used impact printers include the following:. - Checking the compatibility of the device with the operating system installed on the computer.. - Advanced config- uration of devices depends on the type of the device—you might need to refer to the manufacturer’s instructions.. - Firmware refers to the BIOS of the printers or scanners. - Paper jams are mainly caused by one of the following reasons:. - A laser printer produces blank pages due to one of the following reasons:. - This problem is due to a defect on the surface of the EP drum. - The following are some of the common operational problems with scanners:. - Security of the resources can be effectively maintained from a central point.. - The following sections provide a brief summary of the standards tested on the A+ exam.. - These ISPs sit at the top of the Internet hierarchy.. - The actual Internet access speed depends on the utilization of the shared cable signals in the area. - The following are some of the key characteristics of IrDA wireless communication technology:. - The following are some of the key characteristics of Bluetooth-based wireless communications:. - The following sections cover some of the common networkproblems and basic troubleshooting techniques.. - Each of these LEDs can be a good indicator of the connectivity problem.. - The following are some of the common problems with network devices:. - These programs may also negatively affect the performance of the computer. - The most popular of the IEEE 802.11 wireless network. - Wireless authentication is implemented in one of the following methods:. - Some of the protective measures are listed here:. - Placement of the AP is critical for wireless security. - The following are some of the important considerations when setting access control:. - Some of the common methods used to ensure physical security are listed here:. - Hazards associated with activities of the employees.. - The ingredients of the product that are considered hazardous. - The explosive nature of the product. - Some of the essential ESD precautions include the following:. - Active listening techniques consist of the following components:. - You will need to have good questioning skills to get to the root of the problem. - This section explains some of the common aspects of professional behavior.. - A monitor is a delicate part of the computer and must be handled care- fully. - These places are part of the client organization’s property. - This section provides an overview of the types of questions on the exam.. - The multiple-choice questions are either one of the following:. - Be aware of the distractions/confusions in statements. - Remove one of the installed memory modules.. - Determine the type of the module and its capacity.. - Check the colors of the keyboard and mouse connectors.. - Determine the type and size of the LCD screen.. - Change the name of the computer using the Change button.. - Examine the status of the partition.
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