CompTIA A+ Exam Bm

The FDDI (Fiber Distributed Data Interface) connector is a push/pull type, two-channel snap-fit connector used for multimode fiber optic cable. It is also known as a MIC (Media Interface Connector).

A laser printer produces ozone gas as a byproduct of its printing process. Ozone is considered an environmental hazard because it can cause respiratory issues and other health problems when inhaled in high concentrations. Power supplies, laptops, and CPUs do not produce ozone gas.

Windows does include software diagnostic tests that help users identify and fix hardware problems. These tests are designed to diagnose issues with various hardware components such as memory, hard drive, graphics card, and more. These diagnostic tools can help users troubleshoot and resolve hardware-related issues without the need for external software or tools.

The correct answer is VGA. The DB 15 high-density Video Graphics Array (VGA) connector is the most common connector for LCD monitors. VGA is a widely used video display standard and is compatible with most computers and monitors. It allows for analog video signals to be transmitted from the computer to the monitor, providing a high-quality display. EVGA, LPT, and AGP are not connectors commonly used for LCD monitors.

VGA is a video graphics array connector that is used to connect a computer or laptop to a monitor or projector. It is not used to connect a keyboard to a computer. The other options, Wireless RF, USB, and PS/2, are all connectors that can be used to connect a keyboard to a computer.

The correct answer is HKEY_LOCAL_MACHINE because it is a registry hive in the Windows operating system that contains configuration information for the computer's hardware. This includes information about installed modems, hardware profiles, and networking configuration. The other options listed (HKEY_USERS, HKEY_CURRENT_USERS, HKEY_CLASSES_ROOT) are also registry hives, but they do not specifically contain hardware configuration information.

DIMM stands for Dual In-line Memory Module. This is a type of computer memory module that is used to store data and instructions for the computer to access. DIMMs are commonly used in desktop and server computers, and they provide a higher memory capacity and faster data transfer rates compared to older memory technologies.

John, as a PC technician, needs to troubleshoot his SMPS. The two wires he should join are the Green wire and the Black wire. By connecting these two wires, he can effectively troubleshoot the SMPS.

Capacitors store electrical energy and can hold a charge even when the power supply is turned off or unplugged. This stored charge can be dangerous and potentially lethal if it comes into contact with a person. Therefore, power supplies and monitors, which contain capacitors, should be handled with caution to avoid electric shock.

If there are no empty memory expansion sockets on the system board, it means that there is no available space to add more memory modules. In this case, the only way to increase the memory capacity of the system is to remove an existing module and replace it with a module that has more memory. Therefore, the statement is true.

WiFi, or wireless radio communications following the IEEE 802.11b standard, is the most common choice for ordinary wireless LAN connectivity for portable computers. It is ideal for use inside homes, offices, and public buildings. WiFi allows users to connect their portable computer systems to a wired or wireless Ethernet LAN, enabling them to move freely without requiring a line of sight connection to the wireless access point (WAP).

The system BIOS is stored on a ROM chip. ROM stands for Read-Only Memory, which means that the data stored in it cannot be modified or erased. The BIOS (Basic Input/Output System) is responsible for initializing and controlling the hardware components of a computer system. It contains the instructions that allow the computer to start up and perform basic functions before the operating system takes over. Storing the BIOS on a ROM chip ensures that it remains intact even when the computer is powered off, providing a stable and reliable source of instructions for the system.

The jumper settings Master, Slave, and Cable select are used to specify the role of the PATA hard disk in the computer's IDE (Integrated Drive Electronics) interface. The Master setting is used when the hard disk is the primary drive, the Slave setting is used when it is the secondary drive, and the Cable select setting allows the computer to automatically determine the roles based on the physical cable connections. On the other hand, chkdsk is a command used in Windows operating systems to check and repair file system errors on a disk, but it is not a jumper setting for the hard disk.

FAT32 is the correct answer because it is a file system that is designed to scale better to large hard drives, up to 2 terabytes in size. It also uses a smaller cluster size than FAT, which allows for more efficient space usage.

A PDA (Personal Digital Assistant) would be the best choice for the user's needs. PDAs are portable computing devices specifically designed for managing appointments, contacts, and other personal information. They are compact and lightweight, making them ideal for travel. Additionally, PDAs often have wireless capabilities, allowing for email access on the go. Laptops, sub-notebooks, and tablets may offer more functionality, but they are bulkier and less convenient for the user's specific requirements.

The correct answer is "A true B False" because statement A correctly describes ISDN as a broadband technology that transmits digital signals over existing phone lines, which is true. However, statement B incorrectly states that DSL provides extremely long-range wireless network transmissions, which is false. Therefore, both statements are not true, making option A true and option B false.

A surge suppressor helps protect components from power spikes. It is designed to divert excess voltage away from the connected devices, preventing damage to them. While a surge suppressor can protect against power spikes, it does not provide protection against power failures or sags, which are different issues.

The correct order of operation for a laser printer is as follows: Cleaning, Conditioning, Writing, Developing, Transferring, Fusing. This order ensures that the printer is properly cleaned before the printing process begins. Conditioning prepares the paper for printing, while writing refers to the laser beam creating the image on the drum. Developing involves applying toner to the drum, transferring transfers the toner to the paper, and fusing uses heat to bond the toner to the paper.

Telnet is the correct answer because it is a terminal emulation protocol that allows a user to establish a remote connection to a host computer. It enables the user to simulate a session on the remote host, giving them access to the command line interface and the ability to execute commands as if they were physically present at the remote site. FTP, HTTP, and POP3 are not terminal emulation protocols and do not provide the same level of remote access and control as Telnet.

Class 4 lasers pose danger to eyes and skin, as well as being fire hazards. Unlike Class 1, 2, and 3 lasers, Class 4 lasers have the highest power output and can cause immediate damage to the eyes and skin upon exposure. They are also capable of starting fires due to their high energy levels. Therefore, it is important to handle Class 4 lasers with caution and use appropriate safety measures to prevent any accidents or injuries.

For a small company with not more than 100 computers in their network, MR. Tej should apply for a Class C IP address. Class C IP addresses are designed for small networks and can support up to 254 hosts per network. They have a default subnet mask of 255.255.255.0, which allows for 256 possible network addresses. This is sufficient for MR. Tej's company as it falls within the range of 1 to 126, making it suitable for small-scale networks. Class A and Class B addresses are typically used for larger networks, while Class D addresses are reserved for multicast addresses.

To troubleshoot the problem of the newly installed driver not being recognized, the PC technician should check the CMOS settings of the driver. This is important because the CMOS settings control the hardware configuration of the computer, including the recognition and initialization of drivers. By checking the CMOS settings, the technician can ensure that the driver is properly configured and recognized by the system.

IEEE 1394 is a high-speed serial bus standard used for connecting devices such as computers, audio/video equipment, and storage devices. It is known for its ability to transmit data quickly and efficiently. However, it is not true that IEEE 1394 is the least sensitive to electromagnetic interference (EMI) of any cable type. While it does have some resistance to EMI, there are other cable types that are specifically designed to be more resistant to interference, such as shielded twisted pair cables.

802.11e is a draft wireless standard for home and business implementations. This standard aims to improve the quality of service (QoS) in wireless networks by prioritizing certain types of data traffic, such as voice or video, over others. It introduces enhancements to the original 802.11 standard to support multimedia applications and provide a more reliable and efficient wireless connection.