3D151 CDC Edition-01 (All 3 Vols / With Some Self-test Questions)

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  • 1/443 Questions

    (001) What entails how we communicate and manage data?

    • Information systems.
    • Satellite systems.
    • Airfield systems.
    • Power systems.
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About This Quiz

This quiz, titled '3D151 CDC Edition-01', assesses knowledge across all volumes including self-test questions on information systems, hardware, and client systems. It's designed for learners aiming to enhance their understanding in cyber operations within the Air Force, focusing on practical and theoretical aspects.

3D151 CDC Edition-01 (All 3 Vols / With Some Self-test Questions) - Quiz

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  • 2. 

    (001) What part of client systems includes the physical aspect of computers, telecommunications, and other devices, to include the interconnect devices?

    • Hardware.

    • Programs.

    • Processes.

    • Paperwork.

    Correct Answer
    A. Hardware.
    Explanation
    The correct answer for this question is hardware. In client systems, hardware refers to the physical aspect of computers, telecommunications, and other devices, including the interconnect devices. It encompasses tangible components such as the CPU, memory, storage devices, input/output devices, and network devices. Hardware is essential for the functioning of client systems and plays a crucial role in facilitating communication and data processing.

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  • 3. 

    (001) What devices are mostly small, lightweight, and designed for mobile use?

    • Handhelds.

    • Computers.

    • Hardware.

    • Software.

    Correct Answer
    A. Handhelds.
    Explanation
    Handhelds are mostly small, lightweight, and designed for mobile use. They are portable devices that can be easily carried and used while on the move. Handhelds typically have compact designs and are optimized for tasks such as communication, browsing the internet, playing games, and accessing various applications. Computers, on the other hand, can vary in size and are not specifically designed for mobile use. Hardware and software are broad terms that encompass a wide range of devices and programs, respectively, and do not specifically refer to small, lightweight, and mobile devices.

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  • 4. 

    (002) Any hardware added to a computer that expands its capabilities is referred to as a/an

    • Peripheral.

    • Port.

    • Interface.

    • I/O device.

    Correct Answer
    A. Peripheral.
    Explanation
    A peripheral refers to any hardware device that is added to a computer to enhance or expand its capabilities. This can include devices such as printers, scanners, keyboards, and mice, among others. These peripherals are connected to the computer through ports or interfaces and allow the user to interact with the computer and perform various tasks. Therefore, the correct answer for this question is peripheral.

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  • 5. 

    (002) What program translates commands between a device and the programs that use the device?

    • Driver.

    • Operating system.

    • Memory.

    • Port.

    Correct Answer
    A. Driver.
    Explanation
    A driver is a program that acts as a translator between a device and the programs that use the device. It allows the operating system to communicate with the device by converting the commands from the programs into a format that the device can understand. The driver also handles any necessary data conversions or protocol translations. Therefore, the correct answer is driver.

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  • 6. 

    (004) What describes how a computer finds a specific byte it is looking for in memory?

    • Memory addressing.

    • Memory segmenting.

    • Processing.

    • Programming.

    Correct Answer
    A. Memory addressing.
    Explanation
    Memory addressing refers to the process by which a computer locates a specific byte in its memory. It involves assigning unique addresses to each byte in memory, allowing the computer to easily access and retrieve the desired information. This is essential for efficient and accurate data retrieval and manipulation within a computer system. Memory segmenting, processing, and programming are not directly related to the specific task of finding a byte in memory.

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  • 7. 

    (005) Printer hardware configuration via the web is done through

    • Hypertext transfer protocol.

    • Printer front panel controls.

    • Hewlett Packard Jetadmin.

    • Telnet.

    Correct Answer
    A. Hypertext transfer protocol.
    Explanation
    Printer hardware configuration via the web is done through hypertext transfer protocol (HTTP). HTTP is the protocol used for transmitting data over the internet and is commonly used for web browsing. In the context of printer configuration, HTTP allows users to access the printer's web interface through a web browser, where they can make changes to the printer's settings and configurations. This method provides a user-friendly interface for configuring the printer remotely, without the need for physical access to the printer or using specialized software.

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  • 8. 

    (005) What type of printer software configuration option requires a new port to be created?

    • TCP/IP printing.

    • Telnet.

    • Local printer.

    • Driver printing.

    Correct Answer
    A. TCP/IP printing.
    Explanation
    TCP/IP printing requires a new port to be created because it uses the TCP/IP protocol to send print jobs over a network. In order for the printer to receive these print jobs, a specific port needs to be created and configured to communicate with the printer. This allows the printer software to establish a connection with the printer and send the print jobs to it successfully.

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  • 9. 

    (006) The specifications that should be met, if not exceeded, to ensure a computer is compatible as well as powerful enough to run an operating system without constant problems is for the computer to have the minimum

    • Hardware.

    • Software.

    • Processors.

    • Applications.

    Correct Answer
    A. Hardware.
    Explanation
    To ensure a computer is compatible and powerful enough to run an operating system without constant problems, it is essential for the computer to have the minimum hardware requirements. These hardware specifications include components like the processor, memory, storage, and graphics card, which need to meet or exceed the minimum requirements specified by the operating system. Without adequate hardware, the computer may struggle to run the operating system smoothly and may encounter frequent issues and performance issues. Therefore, having the right hardware is crucial for a compatible and powerful computer.

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  • 10. 

    (006) What are minor software updates or improvements called?

    • Bundles.

    • Patches.

    • Databases.

    • Processors.

    Correct Answer
    A. Patches.
    Explanation
    Minor software updates or improvements are commonly referred to as patches. Patches are small pieces of code that are released by software developers to fix bugs, improve functionality, or enhance security. These updates are typically applied to existing software installations to ensure that the software continues to run smoothly and efficiently. Unlike major updates or upgrades, patches are usually focused on addressing specific issues or making small enhancements rather than introducing significant changes to the software.

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  • 11. 

    (006) What is the simplest and most efficient way to duplicate a computer’s software, with no loss of files or configurations within the programs?

    • WinZip.

    • Norton Utilities.

    • Bundled software.

    • Imaging software.

    Correct Answer
    A. Imaging software.
    Explanation
    Imaging software is the simplest and most efficient way to duplicate a computer's software without any loss of files or configurations within the programs. Imaging software allows for the creation of an exact copy or image of the entire computer system, including the operating system, applications, files, and settings. This image can then be easily transferred to another computer or stored as a backup for future use. Using imaging software ensures that all files and configurations are replicated accurately, making it the ideal choice for duplicating software.

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  • 12. 

    (007) How many byte sectors is a hard disk divided into?

    • 512.

    • 124.

    • 248.

    • 1024.

    Correct Answer
    A. 512.
    Explanation
    A hard disk is divided into byte sectors, and the number of byte sectors determines the storage capacity and organization of the hard disk. In this case, the correct answer is 512, indicating that the hard disk is divided into 512-byte sectors.

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  • 13. 

    (007) A formatted disk partition that is used for a particular file system is called

    • A volume

    • Dynamic storage.

    • Basic storage.

    • A sector.

    Correct Answer
    A. A volume
    Explanation
    A formatted disk partition that is used for a particular file system is called a volume. A volume refers to a specific section of a disk that is formatted and assigned a file system, allowing it to store and organize data. It is a logical entity that represents a storage space on a disk and is typically identified by a unique drive letter or mount point. Volumes can be used to store files and folders, and multiple volumes can exist on a single physical disk.

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  • 14. 

    (001) What are information systems?

    • How we communicate and manage the information that is communicated.

    • A calculator.

    • How a computer displays its data.

    • How people communicate across telephony networks.

    Correct Answer
    A. How we communicate and manage the information that is communicated.
    Explanation
    The correct answer is "How we communicate and manage the information that is communicated." Information systems refer to the processes and tools used to collect, store, process, and distribute information within an organization. It involves the use of technology and various components like hardware, software, databases, networks, and people to effectively manage and communicate information. This answer accurately captures the essence of information systems by highlighting the importance of communication and management of information.

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  • 15. 

    (001) What aspect of client systems are you working on if you installed a new piece of equipment?

    • The hardware.

    • The software.

    • Network systems.

    • Information awareness.

    Correct Answer
    A. The hardware.
    Explanation
    If you installed a new piece of equipment, you would be working on the hardware aspect of client systems. Hardware refers to the physical components of a computer system, such as the equipment and devices. Installing a new piece of equipment involves physically connecting and integrating it into the client system, which falls under the hardware category.

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  • 16. 

    (002) What interface entails wires, plugs, and sockets?

    • A hardware interface.

    • A software interface.

    • Intranet interface.

    • Web interface.

    Correct Answer
    A. A hardware interface.
    Explanation
    A hardware interface typically involves physical components such as wires, plugs, and sockets. This type of interface allows different hardware devices to connect and communicate with each other. In contrast, a software interface refers to the means by which software components interact and exchange data. An intranet interface refers to the interface used within a private network, while a web interface is specifically designed for interaction with web-based applications.

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  • 17. 

    (004) What are the types of memory?

    • Volatile & nonvolatile.

    • ROM & PROM

    • RAM & FLASH

    • Persistent & Non-Persistent

    Correct Answer
    A. Volatile & nonvolatile.
    Explanation
    The correct answer is Volatile & nonvolatile. Volatile memory refers to temporary storage that loses its data when power is turned off, such as RAM. Nonvolatile memory, on the other hand, retains data even when power is turned off, such as ROM or flash memory. The other options mentioned, such as ROM & PROM and RAM & FLASH, are not accurate representations of the different types of memory.

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  • 18. 

    (005) What must be created when using TCP/IP printing during software configuration?

    • A new port.

    • A new socket.

    • A new interface for the user.

    • The host configuration.

    Correct Answer
    A. A new port.
    Explanation
    When using TCP/IP printing during software configuration, a new port must be created. This is because TCP/IP printing requires a specific port to be designated for communication between the printer and the software. By creating a new port, the software can establish a connection with the printer and send print jobs over the TCP/IP network.

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  • 19. 

    (007) Which sector is called the master boot sector or the master boot record (MBR)?

    • The first sector.

    • The last sector.

    • The middle sector.

    • None of these, the RAM is what is used to boot the master boot record.

    Correct Answer
    A. The first sector.
    Explanation
    The master boot sector or master boot record (MBR) is located in the first sector of a storage device, such as a hard drive. It contains the partition table and the boot loader code, which is responsible for loading the operating system. The MBR is crucial for the boot process as it provides the necessary information for the system to start up. Therefore, the correct answer is the first sector.

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  • 20. 

    (009) Which of these is a disadvantage of client-server networks?

    • Managing servers requires a dedicated staff.

    • A high level of security can be implemented at the server.

    • Users are relieved of the burden of managing resources.

    • More powerful resources can be shared.

    Correct Answer
    A. Managing servers requires a dedicated staff.
    Explanation
    A disadvantage of client-server networks is that managing servers requires a dedicated staff. This means that organizations need to allocate resources and manpower specifically for server management, which can be costly and time-consuming. Unlike in peer-to-peer networks where users manage their own resources, client-server networks require specialized knowledge and expertise to ensure that servers are properly maintained, updated, and secured. This can add complexity and overhead to the network infrastructure.

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  • 21. 

    (010) What does Wi-Fi use to carry network signals to the network access point?

    • Radio waves.

    • Cable lines.

    • Dedicated lines.

    • Telephone lines.

    Correct Answer
    A. Radio waves.
    Explanation
    Wi-Fi uses radio waves to carry network signals to the network access point. Radio waves are electromagnetic waves that can transmit data wirelessly through the air. Unlike cable lines, dedicated lines, or telephone lines, Wi-Fi does not require physical connections, allowing for greater flexibility and mobility in accessing the network.

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  • 22. 

    (011) What item below is not found in the Active Directory structure?

    • Wi-Fi.

    • Domains.

    • Objects.

    • Forests.

    Correct Answer
    A. Wi-Fi.
    Explanation
    The Active Directory structure is a hierarchical database that stores information about objects on a network and organizes them into domains, forests, and objects. Wi-Fi, on the other hand, is a wireless communication technology that allows devices to connect to a network without the need for physical cables. While Wi-Fi may be used to connect devices to a network that utilizes Active Directory, it is not a component or item that is directly found within the Active Directory structure itself.

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  • 23. 

    (011) User accounts are uniquely identified by the

    • SID.

    • ACL.

    • Permissions.

    • Rights.

    Correct Answer
    A. SID.
    Explanation
    User accounts are uniquely identified by their Security Identifier (SID). A SID is a unique alphanumeric string assigned to each user account in a Windows operating system. It is used by the system to control access and permissions for that specific user. SIDs are unique across different systems, even if the username is the same, ensuring that each user account is uniquely identified and can be granted or denied access to various resources based on their SID. Therefore, the correct answer is SID.

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  • 24. 

    (012) What is installed on a computer to act as the interface between the computer and network?

    • NIC.

    • Ethernet.

    • Transceiver.

    • Coaxial cable.

    Correct Answer
    A. NIC.
    Explanation
    A NIC (Network Interface Card) is installed on a computer to act as the interface between the computer and network. It allows the computer to connect to a network and communicate with other devices on that network. The NIC provides the necessary hardware and software components to enable network connectivity, including transmitting and receiving data packets over the network. Ethernet, transceiver, and coaxial cable are all components or technologies related to network connectivity, but they are not specifically installed on a computer to act as the interface between the computer and network.

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  • 25. 

    (016) What is an electronic credit card-like device that establishes your credentials when doing business or other transactions on the Internet?

    • Digital certificate.

    • Authentication key.

    • Certificate authority key.

    • Public key infrastructure client.

    Correct Answer
    A. Digital certificate.
    Explanation
    A digital certificate is an electronic credit card-like device that establishes your credentials when doing business or other transactions on the Internet. It is a form of identification that verifies the authenticity of a user or entity in online transactions. It contains information such as the user's name, public key, and the digital signature of the certificate authority that issues it. This certificate ensures secure communication between parties by encrypting data and verifying the identity of the sender and receiver.

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  • 26. 

    (018) What drives faster processing speeds and increases the power of many computers and communication devices?

    • Microtechnology.

    • Nanotechnology.

    • Gigatechnology.

    • Biotechnology.

    Correct Answer
    A. Nanotechnology.
    Explanation
    Nanotechnology is the correct answer because it involves manipulating and controlling matter at the nanoscale, which allows for the development of smaller and more efficient components. This enables faster processing speeds and increased power in computers and communication devices. By utilizing nanotechnology, scientists and engineers can create nanoscale transistors, memory chips, and other components that are more powerful and compact than traditional technologies. This advancement in technology has revolutionized various industries and has greatly contributed to the improvement of computer and communication devices.

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  • 27. 

    (018) Which is not a valid form of identity management?

    • Iris.

    • Hair.

    • Palm.

    • Voice.

    Correct Answer
    A. Hair.
    Explanation
    Hair is not a valid form of identity management because it is not unique to each individual and can easily be altered or disguised. Unlike other options such as iris, palm, and voice, which have distinct and unique characteristics that can be used for identification, hair does not possess such qualities. It is important for identity management systems to rely on features that are difficult to replicate or fake, making hair an invalid choice in this context.

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  • 28. 

    (018) What protocol provides an almost unlimited number of Internet Protocol addresses?

    • IPv6.

    • IPv4.

    • VIP.

    • TCP/IP.

    Correct Answer
    A. IPv6.
    Explanation
    IPv6, or Internet Protocol version 6, is the protocol that provides an almost unlimited number of Internet Protocol addresses. IPv6 was developed to address the limitations of IPv4, which has a limited number of available addresses. IPv6 uses 128-bit addresses, allowing for a significantly larger pool of addresses compared to IPv4's 32-bit addresses. This allows for the allocation of a virtually unlimited number of IP addresses, ensuring the continued growth and expansion of the internet.

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  • 29. 

    (011) What rights do you need in order to add a workstation to a domain or configure a workstation?

    • Administrator rights.

    • Server admin rights.

    • User rights.

    • Advanced rights.

    Correct Answer
    A. Administrator rights.
    Explanation
    To add a workstation to a domain or configure a workstation, administrator rights are required. Administrator rights provide the necessary permissions and privileges to make changes to the domain or workstation settings. These rights allow the user to install software, modify system configurations, manage user accounts, and perform other administrative tasks. Server admin rights may be required for managing the domain server itself, but for adding or configuring a workstation, administrator rights are sufficient. User rights and advanced rights do not provide the necessary level of access and control required for these tasks.

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  • 30. 

    (012) What is the expansion card installed in a computer to connect or interface to the network?

    • A network interface card.

    • A modem.

    • Digital Service Line.

    • VGA Card.

    Correct Answer
    A. A network interface card.
    Explanation
    A network interface card is an expansion card installed in a computer to connect or interface to the network. It allows the computer to communicate with other devices on the network and access the internet. A modem, on the other hand, is used to connect to the internet through a telephone line, while a VGA card is used to connect a computer to a monitor. Digital Service Line is not a term related to network connectivity.

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  • 31. 

    (014) What type of network is not constrained by wire?

    • A wireless network.

    • WAN

    • MAN

    • LAN

    Correct Answer
    A. A wireless network.
    Explanation
    A wireless network is not constrained by wire because it allows devices to connect and communicate without the need for physical cables. Instead, it uses radio waves or infrared signals to transmit data between devices. This type of network provides flexibility and mobility as devices can connect from anywhere within the network's coverage area. Unlike WAN, MAN, and LAN, which can be wired networks, a wireless network eliminates the need for physical connections, making it more versatile and convenient.

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  • 32. 

    (015) What are the two ways to implement a client-server?

    • Thick or thin.

    • Terminal or main.

    • Thick or non-thick.

    • Thin and terminal.

    Correct Answer
    A. Thick or thin.
    Explanation
    The correct answer is "thick or thin." This refers to the two different ways of implementing a client-server architecture. In a thick client-server model, the client is responsible for most of the processing and data storage, while the server primarily handles data storage and retrieval. In contrast, a thin client-server model offloads most of the processing and storage to the server, with the client mainly acting as a display terminal. These two approaches offer different trade-offs in terms of performance, scalability, and resource utilization.

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  • 33. 

    (016) A public key to encode data and a private key to decode data best describes

    • Public Key Infrastructure

    • Common Access Card

    • Biometric Access

    • Knowledge-Based Access

    Correct Answer
    A. Public Key Infrastructure
    Explanation
    Public Key Infrastructure (PKI) is a system that uses a pair of keys - a public key and a private key - to secure and transmit data. The public key is used to encrypt or encode the data, while the private key is used to decrypt or decode the data. This ensures that only the intended recipient with the private key can access and read the encoded data. PKI is commonly used in secure communication systems, such as email encryption and online transactions, to ensure confidentiality and data integrity.

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  • 34. 

    (018) What technology enables existing data networks to carry standard phone calls over the same data lines as email and Web traffic while providing phone number and service portability?

    • Voice over Internet protocol.

    • DISN.

    • Fiberoptics.

    • Wireless Telephony

    Correct Answer
    A. Voice over Internet protocol.
    Explanation
    Voice over Internet Protocol (VoIP) is a technology that allows standard phone calls to be transmitted over data networks, such as the internet, alongside email and web traffic. It enables phone number and service portability, meaning that users can keep their phone numbers and switch service providers without changing their phone lines. VoIP converts analog voice signals into digital data packets, which are then transmitted over IP networks. This technology has revolutionized communication by providing a cost-effective and efficient way to make phone calls using existing data lines.

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  • 35. 

    (019) Which is NOT a basic function of antivirus programs?

    • Removal.

    • Scanning.

    • Detection.

    • Vaccination.

    Correct Answer
    A. Scanning.
    Explanation
    Antivirus programs perform several basic functions to protect computer systems from malware. These include removal, detection, and vaccination. Removal refers to the ability of antivirus programs to remove malicious software from the system. Detection involves identifying and recognizing malware threats. Vaccination refers to the process of immunizing the system against known malware. Scanning, on the other hand, is not a basic function of antivirus programs as it is the method used to perform the detection and removal tasks. Scanning involves searching the system for malware and analyzing files and programs for any signs of malicious activity.

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  • 36. 

    (021) With a software license agreement, who has the full rights to the software and its further distribution and reproduction?

    • Buyer.

    • Publisher.

    • US Air Force.

    • US government.

    Correct Answer
    A. Publisher.
    Explanation
    The correct answer is Publisher. In a software license agreement, the publisher retains the full rights to the software and its distribution and reproduction. The buyer only has the right to use the software within the terms and conditions specified in the agreement. The US Air Force and US government are not relevant to the question and do not have any specific rights mentioned in the context of a software license agreement.

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  • 37. 

    (021) What is an essential tool for any Client Systems Technician to find software approved for use on an AF network?

    • Certification.

    • Enterprise license.

    • Enterprise Software Agreement.

    • Evaluated/Approved Product List.

    Correct Answer
    A. Evaluated/Approved Product List.
    Explanation
    An essential tool for any Client Systems Technician to find software approved for use on an AF network is the Evaluated/Approved Product List. This list ensures that all software used on the network meets the necessary security and compatibility requirements. It helps technicians in selecting software that has been evaluated and approved for use, reducing the risk of introducing unauthorized or potentially harmful software onto the network.

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  • 38. 

    (022) The most common hardware diagnostic tool is the

    • Basic input/output system card.

    • Power-on self test.

    • Loopback plug.

    • Patch panel.

    Correct Answer
    A. Loopback plug.
    Explanation
    A loopback plug is the most common hardware diagnostic tool because it is used to test the functionality of computer ports and connections. It is a device that plugs into a port and redirects the outgoing signals back to the computer, allowing it to test if the port is transmitting and receiving data correctly. This tool is commonly used in troubleshooting network connections and identifying faulty hardware components.

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  • 39. 

    (025) What piece of test equipment can help verify connectivity and identify shorts, reversed, crossed or split pairs on a network?

    • Time domain reflectometer.

    • Wide-area network tester.

    • Local-area network tester.

    • Signal generator.

    Correct Answer
    A. Local-area network tester.
    Explanation
    A local-area network tester is a piece of test equipment that can help verify connectivity and identify issues such as shorts, reversed, crossed, or split pairs on a network. It is specifically designed to test and troubleshoot network connections within a local area network (LAN). This device can provide information about the quality and integrity of the network cables, ensuring that they are properly connected and functioning correctly. It is an essential tool for network technicians to diagnose and resolve connectivity issues efficiently.

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  • 40. 

    (026) What tool can launch individual troubleshooting/configuration programs and other utilities having to do with networking, video display, printers, sound, and email configuration on an operating system?

    • Control Panel.

    • Event Viewer.

    • Device Manager.

    • Disk Management.

    Correct Answer
    A. Control Panel.
    Explanation
    The Control Panel is a tool in an operating system that allows users to access and manage various settings and configurations related to networking, video display, printers, sound, and email. It provides a centralized location for launching individual troubleshooting and configuration programs and other utilities for these specific areas. The Control Panel provides a user-friendly interface for users to easily navigate and make changes to their system settings.

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  • 41. 

    (026) Use which tool to list all installed device drivers and their status, find hardware components that are not functioning properly or two devices that are in conflict on an operating system (OS)?

    • Event Viewer.

    • Control Panel.

    • Device Manager.

    • Network Connections.

    Correct Answer
    A. Device Manager.
    Explanation
    Device Manager is the correct answer because it is a tool in the operating system that allows users to view and manage all installed device drivers. It provides information about the status of the drivers and can help identify hardware components that are not functioning properly or devices that are in conflict with each other. The Event Viewer is a separate tool used for viewing system logs and events, Control Panel is a general settings and configuration tool, and Network Connections is specifically for managing network connections.

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  • 42. 

    (027) When troubleshooting after a system failure, this step is a last resort effort when all other avenues have been exhausted.

    • Reboot the system.

    • Reinstall application programs.

    • Remove and replace the operating system.

    • Remove and replace the CD/DVD-ROM drive.

    Correct Answer
    A. Remove and replace the operating system.
    Explanation
    In this scenario, removing and replacing the operating system is suggested as a last resort after all other troubleshooting steps have been tried and failed. This step implies that the issue may be related to a corrupted or malfunctioning operating system, and reinstalling it could potentially resolve the problem. Rebooting the system is a common troubleshooting step but may not always be sufficient. Reinstalling application programs and removing/replacing the CD/DVD-ROM drive are not directly related to addressing system failures, making them less likely to be the correct answer in this context.

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  • 43. 

    (028) This practice uses tapes, electronic vaulting, or mirrored disks and should be done regularly.

    • Reconfiguration.

    • Programming.

    • Data backup.

    • Reloading.

    Correct Answer
    A. Data backup.
    Explanation
    Data backup is the correct answer because the practice mentioned in the question, which involves the use of tapes, electronic vaulting, or mirrored disks, is commonly used for regularly backing up data. This process ensures that important data is securely stored and can be restored in case of any data loss or system failure. Reconfiguration, programming, and reloading do not directly relate to the practice described in the question.

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  • 44. 

    (024) What are the two types of fiber optic cable?

    • Single- and multi-mode.

    • Single- and double-mode.

    • Double- and multi-mode.

    • Open- and double-mode.

    Correct Answer
    A. Single- and multi-mode.
    Explanation
    The correct answer is single- and multi-mode. Fiber optic cables are used for transmitting data over long distances at high speeds. Single-mode fiber optic cable is designed to carry a single ray of light, allowing for longer distances and higher bandwidth. Multi-mode fiber optic cable is designed to carry multiple rays of light, allowing for shorter distances and lower bandwidth. Therefore, the two types of fiber optic cable are single-mode and multi-mode.

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  • 45. 

    (028) What determines how often a backup is run?

    • How much data you can afford to lose if the hard drive fails and the data is lost.

    • How much the Commander wants to keep.

    • How much data can you store.

    • Cost of the backup.

    Correct Answer
    A. How much data you can afford to lose if the hard drive fails and the data is lost.
    Explanation
    The frequency of running a backup is determined by how much data one can afford to lose if the hard drive fails and the data is lost. This means that if the data is critical and cannot be easily replaced, backups need to be performed more frequently to minimize the risk of losing important information. On the other hand, if the data is not as crucial and can be easily recreated or obtained again, backups can be done less frequently. The main factor influencing the backup frequency is the level of importance and value assigned to the data.

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  • 46. 

    (201) The loudness of a sound is closely related to what part of the sine wave?

    • Amplitude.

    • Frequency.

    • Tone.

    • Pitch.

    Correct Answer
    A. Amplitude.
    Explanation
    The loudness of a sound is closely related to the amplitude of the sine wave. Amplitude refers to the maximum displacement of a point on the wave from its equilibrium position. In the context of sound, a larger amplitude corresponds to a louder sound, while a smaller amplitude corresponds to a softer sound. Therefore, the loudness of a sound is directly influenced by the amplitude of the sine wave.

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  • 47. 

    (203) Which models of end offices in the Digital Multiplex System (DMS) family are commonly used at Air Force bases to provide base telephone services?

    • DMS–100 and Meridian System Logic (MSL)–100.

    • DMS–100/200 and MSL–100.

    • DMS–100/200 and DMS–200.

    • DMS–200 and MSL–100.

    Correct Answer
    A. DMS–100 and Meridian System Logic (MSL)–100.
    Explanation
    The correct answer is DMS–100 and Meridian System Logic (MSL)–100. These models of end offices in the Digital Multiplex System (DMS) family are commonly used at Air Force bases to provide base telephone services.

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  • 48. 

    (203) Which model of Digital Multiplex System (DMS)–100 family switches is installed in compact modular cabinets?

    • System load (SL)–1.

    • DMS–100.

    • DMS–200.

    • Meridian System Logic (MSL)–100.

    Correct Answer
    A. Meridian System Logic (MSL)–100.
    Explanation
    The Meridian System Logic (MSL)–100 switches from the DMS-100 family are installed in compact modular cabinets.

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  • 49. 

    (209) What component in the video teleconferencing (VTC) system converts analog signals to digital signals?

    • Camera.

    • Coder/decoder (CODEC).

    • Network termination 1.

    • Central processing unit (CPU).

    Correct Answer
    A. Coder/decoder (CODEC).
    Explanation
    The correct answer is the coder/decoder (CODEC). In a video teleconferencing (VTC) system, the CODEC is responsible for converting analog signals, such as video and audio, into digital signals that can be transmitted over a network. It also decodes digital signals received from the network back into analog signals for display and playback. The CODEC plays a crucial role in ensuring the quality and compatibility of audio and video signals during a video conference.

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Quiz Review Timeline (Updated): Mar 20, 2023 +

Our quizzes are rigorously reviewed, monitored and continuously updated by our expert board to maintain accuracy, relevance, and timeliness.

  • Current Version
  • Mar 20, 2023
    Quiz Edited by
    ProProfs Editorial Team
  • Mar 21, 2017
    Quiz Created by
    Tmoorehead
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