Strata Practice Exam 1-25 50-150

The correct answer is "-". The "-" switch is used with the ATTRB command to clear the attributes of a file. By using this switch, all the attributes associated with the file, such as read-only, hidden, and system, will be removed. This allows the file to be modified, accessed, and viewed without any restrictions or special attributes applied to it.

The /o switch of the XCOPY command is used to copy file ownerships and NTFS permissions on files while copying them.

USB hosts typically supply power to the USB bus at a voltage of 5 volts. This voltage is standard for USB devices and is used to power and charge various devices such as smartphones, tablets, and other peripherals. The 5-volt power supply ensures compatibility and safe operation of USB devices across different platforms and manufacturers.

The Pentium 4, AMD Athlon, and AMD K6 processors all have a 64-bit data bus width. The data bus width refers to the number of bits that can be transferred simultaneously between the processor and memory. A 64-bit data bus allows for the transfer of larger chunks of data, which can result in improved performance and faster data processing. The 386SX processor, on the other hand, has a 16-bit data bus width, which is significantly smaller.

Standby mode has a shorter wake-up period compared to Hibernate mode. This means that when the computer is in Standby mode, it can be quickly resumed and ready for use within a shorter amount of time. In contrast, Hibernate mode takes longer to wake up as it saves the current state of the computer onto the hard disk before shutting down. Therefore, Standby mode offers the advantage of a quicker transition from sleep to active mode, allowing users to resume their work or activities more promptly.

The AMD Athlon(tm) 64 X2 and Intel(r) Pentium(r) processor Extreme Edition are both dual core processors. The AMD Athlon(tm) 64 X2 is a dual-core processor from AMD, while the Intel(r) Pentium(r) processor Extreme Edition is a dual-core processor from Intel.

Wireless Transport Layer Security (WTLS) provides data integrity, encryption, and authentication for wireless devices. Data integrity ensures that the data transmitted between devices remains intact and has not been tampered with. Encryption secures the data by encoding it, making it unreadable to unauthorized users. Authentication verifies the identity of the devices involved in the communication, ensuring that only trusted devices can access the network. Bandwidth, on the other hand, refers to the amount of data that can be transmitted in a given time and is not directly provided by WTLS.

Laptops can be powered by AC power and batteries. AC power refers to the electricity that is supplied through a power outlet, allowing the laptop to be plugged in and charged. On the other hand, laptops also have built-in batteries that store electrical energy and provide power when the laptop is not connected to an outlet. This allows users to use their laptops without being tethered to a power source. Therefore, both AC power and batteries are used to power laptops.

The maximum data transmission speed of IEEE 802.11b wireless networks is 11 Mbps. This is the correct answer because IEEE 802.11b is a standard for wireless local area networks (WLANs) that operates in the 2.4 GHz frequency band and has a maximum data rate of 11 Mbps.

Shareware refers to proprietary software that is provided to users without payment on a trial basis and is often limited by any combination of functionality, availability, or convenience. Unlike freeware, which is completely free, shareware typically includes some restrictions or limitations that encourage users to purchase the full version of the software. Shareware allows users to try out the software before deciding whether to buy it, making it a popular distribution model for software developers.

An anti-virus software file that is updated from time to time to protect a computer from a new virus is referred to as a "definition". Definitions contain information about the characteristics and behavior of viruses, allowing the anti-virus software to detect and remove them from the computer. Regularly updating the definitions ensures that the anti-virus software can effectively identify and protect against new and emerging threats.

The maximum color length to connect a device to an IEEE 1394a port is 4.5 meters.

ATA-7 is the correct answer because it is the ATA standard that supports transfer mode Ultra DMA/133. ATA-6, ATA-4, and ATA-5 do not support this transfer mode.

The expansion bus is responsible for connecting expansion cards to the system bus. Expansion cards are additional hardware components that can be added to a computer system to enhance its functionality. The system bus, on the other hand, is a communication pathway that connects various components of the computer system, such as the CPU, memory, and input/output devices. Therefore, the expansion bus acts as an intermediary between the expansion cards and the system bus, allowing the cards to communicate with the other components of the computer system.

MAC filtering alone is not adequate to secure a wireless network. MAC filtering only allows devices with approved MAC addresses to connect to the network, but it does not provide any encryption to protect the data being transmitted. WEP and WPA encryption should be implemented in addition to MAC filtering to ensure the security of the wireless network.

DDR2 memory comes under the category of SDRAM (Synchronous Dynamic Random Access Memory). SDRAM is a type of memory that synchronizes with the computer's bus speed, allowing for faster data transfer rates. DDR2 is an improved version of DDR (Double Data Rate) memory, which also falls under the SDRAM category.

ICMP (Internet Control Message Protocol) is the correct answer because it is specifically designed to transmit error messages and network statistics. It is used by network devices to send diagnostic information, such as error messages, to indicate problems with the network or to provide information about the network status. ICMP is commonly used by tools like ping and traceroute to test network connectivity and troubleshoot network issues. DHCP (Dynamic Host Configuration Protocol) is used for assigning IP addresses to devices, TCP (Transmission Control Protocol) is responsible for establishing and maintaining a connection between devices, and NNTP (Network News Transfer Protocol) is used for distributing news articles in a network.

The correct answer is "An unauthorized person gains entrance to the building where the company's database server resides and accesses the server by pretending to be an employee" and "An unauthorized person calls a user and pretends to be a system administrator in order to get the user's password". These two scenarios describe social engineering attacks where individuals manipulate human behavior to gain unauthorized access to systems or information. In the first scenario, the attacker uses impersonation to deceive employees and gain physical access to the server. In the second scenario, the attacker uses deception and impersonation to trick a user into revealing their password. Both examples highlight the social engineering aspect of exploiting human vulnerabilities rather than technical vulnerabilities.

Anycast is the correct answer because it is an IPv6 address type that can be assigned to multiple interfaces. When a packet is sent to an anycast address, it is delivered to the nearest interface that is assigned that address. This allows for efficient routing and load balancing, as multiple interfaces can share the same anycast address.

The video capture cards use the AGP and PCIe bus interfaces. AGP (Accelerated Graphics Port) is a high-speed interface specifically designed for graphics cards, providing a direct connection between the card and the computer's motherboard. PCIe (Peripheral Component Interconnect Express) is a newer and faster bus interface that is commonly used for various expansion cards, including video capture cards. Both AGP and PCIe offer the necessary bandwidth and performance required for video capture and processing tasks.

USB 2.0 offers several benefits over legacy communication ports such as RS-232 and parallel ports. Firstly, it provides easy configuration of hardware devices, allowing for a more user-friendly setup process. Secondly, USB 2.0 supports expansion, allowing for the connection of multiple devices simultaneously. Lastly, USB 2.0 offers faster data transfer speeds compared to RS-232 and parallel ports, enabling quicker and more efficient communication between devices.

A smart card is a device that contains a microprocessor and permanent memory. It is used to securely store public and private keys for long on, email signing and encryption, and file encryption. This means that it can securely store sensitive information such as encryption keys and certificates. Additionally, it can be used for tasks such as email signing and encryption, as well as file encryption.

The correct answer is "It involves two or more methods as part of the authentication process." Multi-factor authentication is a security measure that requires users to provide two or more different types of evidence to verify their identity. This can include something the user knows (password), something the user has (smart card), or something the user is (biometric data). By combining multiple methods, it adds an extra layer of security and makes it more difficult for unauthorized individuals to gain access to sensitive information or systems.

The file being encrypted by another user is causing the employee's problem. Encryption is a security measure that converts data into a form that cannot be easily understood by unauthorized individuals. When a file is encrypted by another user, it becomes inaccessible to anyone who does not have the encryption key. Therefore, the employee is unable to open the file.

USB and FireWire are both examples of serial interfaces. USB (Universal Serial Bus) is a standard interface that allows for the connection of various devices to a computer. It is widely used for connecting peripherals such as keyboards, mice, printers, and external storage devices. FireWire (also known as IEEE 1394) is another serial interface that is commonly used for high-speed data transfer between devices, particularly in audio and video applications. EPP (Enhanced Parallel Port) and IEEE 1284, on the other hand, are parallel interfaces and not serial interfaces.

WTLS (Wireless Transport Layer Security) provides authentication, encryption, and data integrity for wireless devices. WTLS is a security protocol specifically designed for wireless communication, ensuring that data transmitted between devices is secure and protected. It offers authentication to verify the identities of the wireless devices, encryption to protect the confidentiality of the data, and data integrity to ensure that the data has not been tampered with during transmission. Therefore, WTLS is the correct answer for this question.

eSATA (External Serial Advanced Technology Attachment) is the correct answer because it has a maximum data transfer rate of 2400 Mbps. FireWire 800 has a maximum data transfer rate of 800 Mbps, USB 1.1 has a maximum data transfer rate of 12 Mbps, and USB 2.0 has a maximum data transfer rate of 480 Mbps. Therefore, eSATA is the only option that matches the given data transfer rate of 2400 Mbps.

S1 is the most power hungry sleep mode because it is the deepest sleep state where the processor is completely powered off and all the context is saved to the main memory. In this mode, the system consumes the least amount of power, but it takes longer to wake up and resume normal operation.

A plug-in is a software component that allows third-party developers to add new features or functionalities to an existing application. It provides an interface for developers to extend the capabilities of the application without modifying its core code. By creating a plug-in, developers can integrate their own code into the application and enhance its functionality according to their specific needs. This enables the application to be more flexible and customizable, as users can choose which plug-ins to install based on their requirements.

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Biometrics, password, and token can all be used to accomplish authentication. Biometrics refers to the use of unique physical characteristics, such as fingerprints or facial recognition, to verify a person's identity. Passwords are a common method of authentication, where users must enter a secret code to access a system. Tokens are physical devices, such as smart cards or USB tokens, that generate one-time passwords or provide a secure means of authentication. All three methods provide different levels of security and can be used individually or in combination to authenticate users.

Before upgrading a client computer from Windows 98 SE to Windows 2000 Professional, it is important to verify that each component of the computer is in the hardware compatibility list (HCL). This ensures that all hardware devices and peripherals are compatible with the new operating system and will function properly. Additionally, it is necessary to verify that the client computer meets the minimum requirements for Windows 2000 Professional in order to ensure optimal performance and compatibility. By performing these two steps, the network administrator can ensure a smooth and successful upgrade process.

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The File and Setting Transfer Wizard is the recommended tool for transferring files and settings from an old PC to a new one. This tool is specifically designed for this purpose and allows for a seamless transfer of files, settings, and even user accounts. It simplifies the process and ensures that all important data and configurations are transferred accurately to the new PC.

The /e switch is used with the XCOPY command to copy directories and subdirectories, including empty directories. This switch ensures that all directories and subdirectories are copied during the process, even if they are empty.

SRAM and DRAM differ in two main aspects. Firstly, SRAM has in-built switches, which means that it does not require refreshing. On the other hand, DRAM needs to be refreshed periodically. Secondly, SRAM is faster than DRAM. These differences make SRAM a preferred choice for applications that require high-speed access to data, such as cache memory, while DRAM is commonly used for main memory due to its higher density and lower cost.

The correct answer suggests that the second hard disk drive should be installed on the primary IDE controller and designated as a Slave, while the first hard disk drive should be installed on the secondary IDE controller and designated as a Master. This configuration allows for optimal performance and compatibility between the two drives. Additionally, designating both drives as Master on the secondary IDE controller would not be a correct solution, as it can cause conflicts and compatibility issues.

The VESA, PCI, and EISA expansion slots can be used to plug a SCSI adapter. These slots provide the necessary connectivity and compatibility for the SCSI adapter to be connected to the computer's motherboard. VESA, PCI, and EISA are common expansion slot types found in computers, and they support a wide range of peripherals, including SCSI adapters.

A Storage Area Network (SAN) provides only block-based storage, meaning it treats storage as a collection of fixed-size blocks rather than files. SANs leave file system concerns on the client side, allowing the client to manage the file system and file access. This separation of file system concerns allows for more flexibility and scalability in managing storage resources.

SVGA (Super Video Graphics Array) video technology supports a resolution of 800 x 600. This resolution refers to the number of pixels displayed horizontally and vertically on a screen. SVGA is an enhancement of VGA (Video Graphics Array) and offers higher resolution and color depth. The other resolutions mentioned, 640 x 200, 640 x 480, and 1024 x 768, are not specifically supported by SVGA.

S4 is the correct answer because it is the sleep mode that is commonly referred to as Hibernation in Windows operating systems. In this mode, the computer saves all open documents and running programs to the hard drive and then shuts down. When the computer is turned back on, it resumes from where it left off, allowing for a quick startup and the restoration of all previously open files and applications.

The correct answer is 72 pin and 30 pin. Single Inline Memory Modules (SIMMs) are types of memory modules used in computers. 72 pin SIMMs were commonly used in older computers, while 30 pin SIMMs were used in even older systems. 184-pin and 168-pin are not types of SIMMs, but are instead used for other types of memory modules like DIMMs (Dual Inline Memory Modules).

Wired Equivalent Privacy (WEP) uses the RC4 encryption algorithm. RC4 is a symmetric stream cipher that is widely used in various security protocols. It is known for its simplicity and speed, making it suitable for wireless network encryption like WEP. Despite its initial popularity, RC4 is now considered insecure due to vulnerabilities in its key scheduling algorithm.

SMPS (Switched Mode Power Supply) and Monitor can both cause great harm to one's life with lethal electric shocks. SMPS is responsible for converting and regulating the electrical power from the main supply to the required voltage for the computer components. If not handled properly, it can deliver high voltage electric shocks. Similarly, a faulty or damaged monitor can also pose a risk of electric shock due to exposed wires or internal malfunctions. Floppy drives and keyboards, on the other hand, do not have the capability to cause lethal electric shocks.

Aircards are specifically designed to provide broadband wireless access to laptops. These cards can be inserted into the laptop's PCMCIA slot or USB port, allowing users to connect to the internet wirelessly. They typically use cellular networks to establish a connection, providing internet access wherever there is cellular coverage. This makes aircards a convenient and portable solution for accessing the internet on the go.

POP3 and IMAP4 are both Internet standard protocols for email retrieval. POP3 stands for Post Office Protocol version 3 and is used to retrieve emails from a mail server to a client device. IMAP4 stands for Internet Message Access Protocol version 4 and is also used for email retrieval. Both protocols allow users to access and manage their emails, but they have some differences. POP3 typically downloads emails to the client device and removes them from the server, while IMAP4 allows users to view and manage emails directly on the server without downloading them.

The correct answer is the Six-pin mini-DIN connector, USB, and Five pin DIN connector. These connectors are commonly used to connect a keyboard to a computer. The Six-pin mini-DIN connector, also known as PS/2 connector, is a round connector that was widely used in older computers. USB (Universal Serial Bus) is a standard connector that is commonly used for various devices, including keyboards. The Five pin DIN connector is another type of connector that was used in older computers. The Nine-pin D type male connector, on the other hand, is commonly used for serial ports and is not typically used for connecting keyboards.

The switch "/c" in the XCOPY command allows the copying process to continue even if errors occur. This means that if any files encounter errors during the copying process, the command will not stop and will continue copying the remaining files.

NiCd batteries have the shortest life compared to the other types of batteries listed. This is because NiCd batteries have a lower energy density and are more prone to memory effect, which reduces their overall lifespan. Additionally, NiCd batteries have a higher self-discharge rate, leading to a shorter shelf life. In comparison, NiMH, lead-acid, and silver-zinc batteries generally have longer lifespans and higher energy densities.

C0 is the processor state that does not save power. In the C0 state, the processor is fully powered and actively executing instructions. This state consumes the maximum amount of power as the processor is fully operational and not in a low-power mode. On the other hand, C1, C2, and C3 are lower power states where the processor reduces its power consumption by reducing its clock speed, voltage, or by turning off certain components.

A macro virus is a type of virus that attaches itself to a file or template. It is typically written in a programming language that is used to automate tasks within software applications, such as Microsoft Word or Excel. When the infected file or template is opened, the macro virus is executed and can spread to other files or templates. This type of virus is often spread through email attachments or shared documents, and can cause damage by corrupting or deleting files, or by stealing sensitive information.

Andrew will determine the version of the BIOS by clicking the Start menu, choosing Programs > Accessories > System Tools > System Information. Then, in the System Information window, he will click the System Summary folder in the left pane. This will provide him with the information about the BIOS version of his computer.

A laptop microprocessor generates less heat than a desktop microprocessor does. This is because laptops are designed to be more compact and portable, so they have limited space for cooling systems. To prevent overheating, laptop microprocessors are designed to consume less power and generate less heat. On the other hand, desktop microprocessors have more space for cooling systems, allowing them to operate at higher power levels and generate more heat without overheating.

SCSI ID numbers are prioritized in ascending order, with the lowest number being the highest priority. Therefore, the correct answer is 7 = highest and 8 = lowest.

The network interface card and the floppy disk drive are known as Input/Output devices. A network interface card allows a computer to connect to a network and send or receive data, making it an input/output device. A floppy disk drive is used to read and write data to floppy disks, making it another example of an input/output device. Both devices are capable of both inputting and outputting data, hence they are classified as Input/Output devices.

The correct answer is Service Set Identifier (SSID) and Encryption. These two items are configured on a user workstation for wireless networking. The Service Set Identifier (SSID) is a unique name that identifies a wireless network, and it is used by devices to connect to the correct network. Encryption is a security measure that protects data transmitted over the wireless network by encoding it, ensuring that only authorized users can access the information. Both the SSID and encryption settings need to be properly configured on a user workstation to establish a secure and functional wireless connection.