3c251 CDC Vol 2

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  • 1/89 Questions

    What device is used to input and display data?

    • A terminal
    • A printer
    • A client
    • A host
Please wait...
About This Quiz

The '3C251 CDC Vol 2' quiz evaluates knowledge on network security devices and systems, including terminals, modems, and secure data transfer equipment. It assesses understanding of equipment capabilities and security standards, crucial for professionals in IT and network security.

Professional Certification Quizzes & Trivia

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  • 2. 

    Which module is common equipment for the Promina?

    • Trunk

    • Processor

    • Data

    • Voice

    Correct Answer
    A. Processor
    Explanation
    The common equipment for the Promina module is the Processor. This module is essential for the functioning and operation of the Promina system. It is responsible for handling and processing data, voice, and trunk connections. Without the Processor module, the Promina system would not be able to perform its intended functions.

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  • 3. 

    Which Uninterruptible Power Supply (UPS) component takes the Direct Current (DC) voltage input and changes it to Alternating Current (AC) voltage?

    • Inverter

    • Static switch

    • Battery banks

    • Rectifier/charger

    Correct Answer
    A. Inverter
    Explanation
    The inverter is the component of the Uninterruptible Power Supply (UPS) that takes the Direct Current (DC) voltage input and changes it to Alternating Current (AC) voltage. This is necessary because most electronic devices and appliances operate on AC power, so the inverter ensures that the UPS can provide a consistent and compatible power source during power outages or fluctuations.

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  • 4. 

    What type of error is the result of two successive logic one pulses of the same polarity in violation of alternate mark inversion coding rules?

    • Cyclic redundancy check

    • Bipolar violation

    • Bit slip

    • Frame

    Correct Answer
    A. Bipolar violation
    Explanation
    A bipolar violation is the result of two successive logic one pulses of the same polarity in violation of alternate mark inversion coding rules. In alternate mark inversion coding, logic one pulses are supposed to alternate in polarity. When two consecutive logic one pulses of the same polarity occur, it results in a bipolar violation. This violation can cause errors in the transmission of data and can lead to signal integrity issues.

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  • 5. 

    What network device is certified to secure all classification levels and categories and is able to encrypt trunk-level high-speed circuits?

    • The AN/CYZ-10 Data Transfer Device(DTD)

    • The Secure Terminal Equipment(STE)

    • Secure DTD 2000 System(SDS)

    • The TSEC/KIV-19

    Correct Answer
    A. The TSEC/KIV-19
    Explanation
    The TSEC/KIV-19 is the correct answer because it is a network device that is certified to secure all classification levels and categories. It is also capable of encrypting trunk-level high-speed circuits. The AN/CYZ-10 Data Transfer Device (DTD), Secure Terminal Equipment (STE), and Secure DTD 2000 System (SDS) are not specifically designed for these purposes.

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  • 6. 

    What is an important feature of dynamic routing in the Promina?

    • If a path to a connected node is down, traffic is automatically rerouted over other trunks

    • If a path to a connected node is down, traffic can be manually rerouted over other trunks

    • Bandwidth for a 9.6 kbps circuit is assigned to a pool and is allocated as needed

    • Bandwidth for a 9.6 kbps circuit is assigned toa 64 kbps channel

    Correct Answer
    A. If a path to a connected node is down, traffic is automatically rerouted over other trunks
    Explanation
    Dynamic routing in the Promina allows for the automatic rerouting of traffic over other trunks if a path to a connected node is down. This feature ensures that network connectivity is maintained even in the event of a failure or outage. It eliminates the need for manual intervention and ensures seamless communication and data transfer.

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  • 7. 

    How does the Defense Information Systems Agency (DISA) ensure there are some standards of operation throughout the Promina network?

    • Dynamic bandwidth allocation

    • Centralized management

    • Transparency to users

    • Dynamic routing

    Correct Answer
    A. Centralized management
    Explanation
    DISA ensures there are some standards of operation throughout the Promina network through centralized management. This means that DISA has a central authority or control system in place that oversees and manages the network operations. This allows for consistent and standardized practices to be implemented across the network, ensuring that all users and systems adhere to the same set of rules and protocols. Centralized management helps to maintain control, efficiency, and security within the network.

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  • 8. 

    What happens to the observed signal if you advance the oscilloscope synchronizing control too far?

    • Masking

    • Distortion

    • Deflection

    • Overloading

    Correct Answer
    A. Distortion
    Explanation
    Advancing the oscilloscope synchronizing control too far can lead to distortion in the observed signal. Distortion refers to any alteration or deformation in the shape or quality of the signal waveform. When the synchronizing control is advanced too far, it can cause the oscilloscope to incorrectly synchronize with the signal, resulting in a distorted representation of the waveform on the display. This distortion can make it difficult to accurately analyze and interpret the signal's characteristics, potentially leading to incorrect conclusions or measurements.

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  • 9. 

    Which do you not rely on as a fault isolation aid?

    • Operational adjustments

    • Customer complaints

    • Intercommunications

    • Test facilities

    Correct Answer
    A. Customer complaints
    Explanation
    Customer complaints are not relied upon as a fault isolation aid because they are subjective and may not always accurately identify the root cause of a problem. While customer complaints can provide valuable feedback, they are not a reliable method for isolating faults or identifying specific technical issues. Instead, operational adjustments, intercommunications, and test facilities are commonly used to diagnose and isolate faults in systems or products.

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  • 10. 

    Where does power distribution within the systems control facility begin?

    • Main power panel

    • Power supply

    • Transformer

    • Subpanel

    Correct Answer
    A. Main power panel
    Explanation
    The power distribution within the systems control facility begins at the main power panel. This panel is responsible for receiving the main power supply and distributing it to various subpanels and circuits within the facility. It acts as the central hub for controlling and managing the power distribution throughout the facility.

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  • 11. 

    How many Promina Processor Modules can be installed in a Promina 800 node?

    • One only

    • Two only

    • One to Four

    • Two to Six

    Correct Answer
    A. One to Four
    Explanation
    The Promina 800 node can accommodate a range of one to four Promina Processor Modules. This means that the user has the flexibility to install anywhere between one to four modules based on their specific requirements.

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  • 12. 

    Which section of a bit error rate test (BERT) set generates a pseudo-random test pattern?

    • Emitter

    • Reciever

    • Detector

    • Transmitter

    Correct Answer
    A. Transmitter
    Explanation
    The transmitter section of a bit error rate test (BERT) set generates a pseudo-random test pattern. This pattern is used to simulate real-world data transmission and assess the performance of the communication system. The transmitter generates a sequence of bits based on a pseudo-random algorithm, which is then sent to the receiver for analysis. By comparing the received data with the transmitted pattern, the system can measure the bit error rate and identify any issues or errors in the transmission.

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  • 13. 

    Which test determines whether the digital radio and multiplexer are operating in an optimum condition?

    • Average Bit Error Rate (BER) versus Receive Signal Level (RSL)

    • Amplitude versus frequency distortion

    • Impulse noise

    • Timing jitter

    Correct Answer
    A. Average Bit Error Rate (BER) versus Receive Signal Level (RSL)
    Explanation
    The correct answer is Average Bit Error Rate (BER) versus Receive Signal Level (RSL). This test is used to determine whether the digital radio and multiplexer are operating optimally by measuring the average bit error rate, which indicates the quality of the received signal, and the receive signal level, which indicates the strength of the received signal. By comparing the BER and RSL, it can be determined if the system is performing at an optimal level or if there are issues that need to be addressed.

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  • 14. 

    What type of resistor is wired between the tip and ring of the monitor jack of the audio patch panel that makes it possible for you to monitor the signal?

    • 12-ohm

    • 14-ohm

    • 22-ohm

    • 24-ohm

    Correct Answer
    A. 22-ohm
    Explanation
    The 22-ohm resistor is wired between the tip and ring of the monitor jack in the audio patch panel to allow for signal monitoring. This resistor helps to balance the audio signal and prevent any impedance mismatch between the input and output devices. By providing the right amount of resistance, the 22-ohm resistor ensures that the monitored signal is accurately represented without any distortion or loss of quality.

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  • 15. 

    Which Promina menu is used only with an operator status of level 3 or higher?

    • Prolog Procedure

    • Functional Area

    • Action

    • Object

    Correct Answer
    A. Action
    Explanation
    The correct answer is "Action" because it is the only option that specifies a type of menu. The other options, Prolog Procedure, Functional Area, and Object, do not indicate any specific type of menu. Additionally, the question states that the menu is used only with an operator status of level 3 or higher, which suggests that it is a menu for performing specific actions or tasks.

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  • 16. 

    After you have adjusted the oscilloscope intensity control to increase the readability of the display, what other control may you need to adjust?

    • Gain

    • Focus

    • Frequency

    • Position

    Correct Answer
    A. Focus
    Explanation
    After adjusting the oscilloscope intensity control to increase the readability of the display, the next control that may need to be adjusted is the focus control. This control allows the user to adjust the sharpness and clarity of the waveform being displayed on the screen. By adjusting the focus control, the user can ensure that the waveform is clear and easy to interpret, improving the overall usability of the oscilloscope.

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  • 17. 

    Which alarms are used to monitor power and building conditions in the systems control element?

    • Radio

    • Station

    • Multiplex

    • Group pilot

    Correct Answer
    A. Station
    Explanation
    The term "systems control element" suggests that the question is referring to a centralized control system that monitors power and building conditions. In such a system, alarms are used to alert operators about any issues or abnormalities. The term "station" is the most logical choice among the given options, as it commonly refers to a specific location or facility where monitoring and control activities take place. Therefore, "station" is the correct answer for this question.

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  • 18. 

    The main function of fault alarm and status reporting is to assist you

    • In quality control testing

    • In isolating a failure to a specific location

    • By providing system phase lock and synchronization

    • By providing the system with parity error detection

    Correct Answer
    A. In isolating a failure to a specific location
    Explanation
    The main function of fault alarm and status reporting is to assist you in isolating a failure to a specific location. This means that the fault alarm and status reporting system helps in identifying the exact location where a failure or fault has occurred. By providing information about the status and alarms, it becomes easier to pinpoint the specific area or component that is causing the problem. This helps in troubleshooting and resolving the issue efficiently.

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  • 19. 

    What is the maximum number of days an on-call patch should be activated?

    • 3

    • 7

    • 10

    • 12

    Correct Answer
    A. 7
    Explanation
    The correct answer is 7 because an on-call patch should not be activated for more than 7 days. This is because keeping a patch activated for too long can increase the risk of potential security vulnerabilities and may also cause system instability. Therefore, it is recommended to regularly update and rotate patches to ensure the security and stability of the system.

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  • 20. 

    What device modulates digital data onto an analog carrier for transmission?

    • Channel Service Unit(CSU)

    • Digital Service Unit(DSU)

    • CSU/DSU

    • Modem

    Correct Answer
    A. Modem
    Explanation
    A modem is a device that modulates digital data onto an analog carrier for transmission. It converts digital signals from a computer into analog signals that can be transmitted over telephone lines or other communication channels. The modem then demodulates the analog signals back into digital form at the receiving end. This allows digital data to be transmitted over analog communication channels, enabling devices to communicate with each other over long distances.

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  • 21. 

    Who does the Systems Control Facility (SCF) contact for assistance when on-call service cannot be established within the means available to the SCF?

    • User

    • Circuit control office

    • Other systems control facilities

    • Regional network operations and security center

    Correct Answer
    A. Regional network operations and security center
    Explanation
    The Systems Control Facility (SCF) contacts the Regional Network Operations and Security Center for assistance when on-call service cannot be established within the means available to the SCF. This suggests that the Regional Network Operations and Security Center has the necessary resources and capabilities to provide assistance in such situations.

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  • 22. 

    What feature of the Promina allows users to be unconcerned with the exact circuit path?

    • Dynamic bandwidth allocation

    • Centralized management

    • Transparency to users

    • Dynamic routing

    Correct Answer
    A. Transparency to users
    Explanation
    The feature of transparency to users in Promina allows them to be unconcerned with the exact circuit path. This means that users do not need to worry about the specific route their data takes within the network. The Promina system handles the routing and ensures that data is delivered efficiently and reliably, without requiring users to have knowledge of or control over the circuit path. This feature simplifies the user experience and allows them to focus on their tasks without being burdened by network intricacies.

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  • 23. 

    Which Promina Operator Interface query command displays a matrix depicting the network topology of the nodes connected within the local domain?

    • Node

    • Links

    • Alarms

    • Network

    Correct Answer
    A. Network
    Explanation
    The "Network" command in the Promina Operator Interface displays a matrix depicting the network topology of the nodes connected within the local domain. This command provides a visual representation of how the nodes are interconnected and allows the user to understand the overall network structure. It is a useful tool for troubleshooting and monitoring the network.

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  • 24. 

    What are the two major sections of a Bit Error Rate Test (BERT) set?

    • Emitter and detector

    • Emitter and reciever

    • Transmitter and generator

    • Transmitter and reciever

    Correct Answer
    A. Transmitter and reciever
    Explanation
    The two major sections of a Bit Error Rate Test (BERT) set are the transmitter and receiver. The transmitter is responsible for generating the test signal, which is then transmitted to the receiver. The receiver, on the other hand, is responsible for receiving the test signal and comparing it to the expected signal. By measuring the number of bit errors that occur during transmission, the BERT set can evaluate the performance and quality of the communication channel.

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  • 25. 

    Which auxiliary generator component connects the generator to the load by changing the facility's power feed from the commercial source to the generator?

    • Switchgear

    • Starting system

    • Distribution panel

    • Engine control panel

    Correct Answer
    A. Switchgear
    Explanation
    Switchgear is the correct answer because it is a component that is responsible for connecting the generator to the load. It does this by changing the power feed from the commercial source to the generator. Switchgear is designed to handle high voltages and currents, and it includes switches, fuses, and circuit breakers to control and protect the electrical system.

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  • 26. 

    A Promina node can have how many links?

    • 16

    • 32

    • 64

    • 128

    Correct Answer
    A. 64
    Explanation
    A Promina node can have 64 links. This means that it can connect to 64 other devices or nodes within a network. These links allow for communication and data transfer between the Promina node and other connected devices. Having 64 links provides a significant amount of connectivity and flexibility for the node to interact with various components of a network.

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  • 27. 

    What oscilloscope control do you need to adjust when a 'halo' appears on the display?

    • Intensity

    • Marker

    • Sweep

    • Focus

    Correct Answer
    A. Intensity
    Explanation
    When a 'halo' appears on the display of an oscilloscope, the correct control to adjust is the Intensity. The Intensity control adjusts the brightness of the waveform on the screen. By adjusting the Intensity, the 'halo' can be reduced or eliminated, resulting in a clearer and more accurate display of the waveform.

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  • 28. 

    Before starting the timing jitter test, you must determine whether the circuit you are testing is

    • Bias or unbias

    • Digital or analog

    • Loaded or unloaded

    • Balanced or unbalanced

    Correct Answer
    A. Balanced or unbalanced
    Explanation
    The correct answer is balanced or unbalanced. Before conducting the timing jitter test, it is important to determine whether the circuit being tested is balanced or unbalanced. This is because the test procedure and interpretation of results may vary depending on the balance or imbalance of the circuit. A balanced circuit has equal impedance on both sides, while an unbalanced circuit has unequal impedance. Understanding the balance or imbalance of the circuit helps in accurately assessing and analyzing the timing jitter.

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  • 29. 

    What network device provides high-speed secure data transfers up to 38.4 kilobits per second (kbps) for asynchronous or 128 kbps for synchronous?

    • The AN/CYZ-10 Data Transfer Device(DTD)

    • The Secure Terminal Equipment(STE)

    • The TSEC/KIV-7HS

    • The TSEC/KIV-19

    Correct Answer
    A. The Secure Terminal Equipment(STE)
    Explanation
    The Secure Terminal Equipment (STE) is a network device that provides high-speed secure data transfers up to 38.4 kilobits per second (kbps) for asynchronous or 128 kbps for synchronous communication. The AN/CYZ-10 Data Transfer Device (DTD) is not the correct answer because it is a portable electronic device used for transferring data between different security domains. The TSEC/KIV-7HS and TSEC/KIV-19 are also not the correct answers as they are encryption devices used for securing data transmissions, but they do not specifically provide high-speed data transfers like the STE.

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  • 30. 

    What can you do to prevent Promina alarms from being overwritten and discarded?

    • Reset all alarms

    • Clear all alarms

    • Canceled all alarms that have been resolved

    • Save all alarms that are not associated with a clearing event

    Correct Answer
    A. Canceled all alarms that have been resolved
    Explanation
    To prevent Promina alarms from being overwritten and discarded, you should cancel all alarms that have been resolved. By doing so, you ensure that the resolved alarms are not cleared or overwritten, allowing them to be saved and reviewed for future reference or analysis. This helps in maintaining a comprehensive record of all resolved alarms and prevents important information from being lost or discarded.

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  • 31. 

    Which Promina menu contains commands for configuring the network?

    • Prolog Procedure

    • Functional Area

    • Action

    • Object

    Correct Answer
    A. Functional Area
    Explanation
    The correct answer is Functional Area. In the context of Promina, a functional area refers to a specific section or module within the system that focuses on a particular aspect or task. In this case, the functional area menu would contain commands and options related to configuring the network settings. It would provide the necessary tools and options for managing and customizing the network configuration within the Promina system.

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  • 32. 

    How many minutes should you conduct a bit error rate test (BERT) on a Z4, 50 kbps circuit?

    • 5

    • 10

    • 15

    • 30

    Correct Answer
    A. 15
    Explanation
    A bit error rate test (BERT) is used to measure the quality of a communication channel by introducing errors and checking how many errors are detected. The duration of the test depends on the desired level of accuracy and the length of the circuit. In this case, since the circuit is specified to be a Z4, 50 kbps circuit, a 15-minute test duration is appropriate to ensure a thorough evaluation of the circuit's performance.

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  • 33. 

    Which stress pattern test for T-1 circuits causes the pulse generator of the transmission equipment to consume the maximum amount of power?

    • 1-in-7

    • 2-in-8

    • All ones

    • All zeros

    Correct Answer
    A. All ones
    Explanation
    The stress pattern test that causes the pulse generator of the transmission equipment to consume the maximum amount of power is the "All ones" test. In this test, all bits in the T-1 circuit are set to the value of 1, which requires the pulse generator to continuously transmit high voltage signals. This constant transmission of high voltage signals consumes the maximum amount of power from the pulse generator, making it the most power-consuming stress pattern test for T-1 circuits.

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  • 34. 

    As related to the red/black concept, which type of separation is the isolating of batteried circuits from each other?

    • Link

    • Circuit

    • Electrical

    • Physical

    Correct Answer
    A. Electrical
    Explanation
    The correct answer is electrical because the question is asking about the type of separation that isolates battery circuits from each other. This type of separation refers to the electrical isolation of the circuits, ensuring that they are not connected or affected by each other's electrical signals or power sources.

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  • 35. 

    What type of Promina module supports subrate data multiplexing?

    • INT-422

    • TRK-3

    • HSD-2

    • X.50

    Correct Answer
    A. X.50
    Explanation
    The X.50 module supports subrate data multiplexing.

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  • 36. 

    To center the trace on the cathode-ray rube (CRT) of an oscilloscope, what controls do you use?

    • Frequency and sweep calibrator

    • Expanded sweep and sweep calibrator

    • Horizontal and vertical gain controls

    • Horizontal and vertical position controls

    Correct Answer
    A. Horizontal and vertical position controls
    Explanation
    To center the trace on the cathode-ray tube (CRT) of an oscilloscope, you would use the horizontal and vertical position controls. These controls allow you to adjust the position of the trace on the screen horizontally and vertically, ensuring that it is centered and aligned properly. The frequency and sweep calibrator, expanded sweep, and sweep calibrator controls are not used for centering the trace on the CRT.

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  • 37. 

    The purpose of the jumper cables and side switch pins on a breakout box is to

    • Measure individual interface sgnals

    • Interrupt individual interface conductors

    • Cross-patch individual interface conductors

    • Change the voltage of individual interface signals

    Correct Answer
    A. Cross-patch individual interface conductors
    Explanation
    The jumper cables and side switch pins on a breakout box are used to cross-patch individual interface conductors. This means that they allow for the connection of specific interface conductors to each other, enabling the exchange of signals between them. This can be useful for testing and troubleshooting purposes, as it allows for the isolation and manipulation of individual signals within an interface.

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  • 38. 

    When you conduct the timing jitter test with an oscilloscope connected to a circuit carrying a signal, what triggers the sweep?

    • The first positive-going transition

    • The second positive-going transition

    • The first negative-going transition

    • The second negative-going transition

    Correct Answer
    A. The first positive-going transition
    Explanation
    When conducting a timing jitter test with an oscilloscope connected to a circuit carrying a signal, the sweep is triggered by the first positive-going transition. This means that the oscilloscope starts measuring and displaying the waveform at the moment when the signal crosses the zero voltage level and starts increasing in a positive direction. This is important because it allows for accurate measurement and analysis of the timing variations or fluctuations in the signal, known as jitter, that may occur after this initial transition.

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  • 39. 

    What device is a terminal with significant computing and processing capability?

    • A printer

    • A server

    • A client

    • A host

    Correct Answer
    A. A client
    Explanation
    A client is a device that typically has significant computing and processing capability. It is used to access and interact with a server or host system. Clients can perform tasks such as running applications, processing data, and displaying information. They are usually connected to a network and rely on the server or host for resources and services. Therefore, a client is the correct answer as it fits the description of a terminal with significant computing and processing capability.

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  • 40. 

    Which trunk module interconnects Promina nodes across an Asynchronous Transfer Mode (ATM) network?

    • CellXpress

    • TRK-2

    • TRK-3

    • T-3

    Correct Answer
    A. CellXpress
    Explanation
    CellXpress is the trunk module that interconnects Promina nodes across an Asynchronous Transfer Mode (ATM) network.

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  • 41. 

    What type of Promina module supports two independent synchronous circuits at data rates from 9.6 kbps to 2.048 Mbps?

    • Quad synchronous data

    • Universal sunchronized data

    • High-speed synchronous data

    • Quad asynchronous/synchronous data

    Correct Answer
    A. High-speed synchronous data
    Explanation
    The correct answer is "High-speed synchronous data." This type of Promina module supports two independent synchronous circuits at data rates ranging from 9.6 kbps to 2.048 Mbps.

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  • 42. 

    Which patch bay provides a circuit monitoring and testing capability for T-1 circuits?

    • Digital

    • DS-X

    • Digital and audio

    • DS-X and audio

    Correct Answer
    A. DS-X
    Explanation
    The DS-X patch bay provides a circuit monitoring and testing capability for T-1 circuits.

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  • 43. 

    The difference between a Promina trunk and link is that a trunk is a

    • Multiple physical connection between two nodes and a link is a single logical connection

    • Single logical connection between two nodes and a link is a multiple physical connection

    • Logical connection that can consist of one or more links and a link is a single physical connection between nodes

    • Physical connection between two nodes and a link is a logical connection that can consist of one or more trunks

    Correct Answer
    A. Physical connection between two nodes and a link is a logical connection that can consist of one or more trunks
    Explanation
    A Promina trunk and link differ in their nature. A trunk refers to a physical connection involving multiple physical connections between two nodes. On the other hand, a link represents a logical connection that can consist of one or more trunks. Therefore, a link is a logical connection that can include multiple physical connections, while a trunk is a physical connection between two nodes.

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  • 44. 

    What oscilloscope height-to-width ratio provides optimum display proportions for general-purpose waveform examinations?

    • 1:1

    • 2:3

    • 3:4

    • 4:6

    Correct Answer
    A. 2:3
    Explanation
    The 2:3 height-to-width ratio provides optimum display proportions for general-purpose waveform examinations on an oscilloscope. This ratio ensures that the waveform is displayed with a balanced and visually pleasing aspect ratio, allowing for accurate analysis and interpretation of the waveform. A 2:3 ratio means that the height of the waveform is two-thirds of its width, providing enough vertical resolution to capture the details of the waveform while still maintaining a wide enough display to see the overall shape and characteristics of the waveform.

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  • 45. 

    In most cases, the signal level for commercial data circuits is between

    • 0 and -10 dBm0

    • -10 and -13 dBm0

    • -18 and -22 dBm0

    • -20 and -24 dBm0

    Correct Answer
    A. -18 and -22 dBm0
    Explanation
    The correct answer is -18 and -22 dBm0. In commercial data circuits, the signal level typically falls within this range. dBm0 is a unit of measurement used to express power levels in decibels relative to a reference level of 1 milliwatt. The signal level between -18 and -22 dBm0 indicates a moderate power level, which is suitable for transmitting data over commercial data circuits.

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  • 46. 

    Which patch bays(s) can accommodate DB-25 modules wired for the RS-232, RS-530, or V.35 physical standard?

    • Digital

    • DS-X

    • Digital and audio

    • DS-X and audio

    Correct Answer
    A. Digital
    Explanation
    The answer is "Digital" because the question asks for the patch bays that can accommodate DB-25 modules wired for the RS-232, RS-530, or V.35 physical standard. The term "Digital" suggests that this type of patch bay is specifically designed to handle digital signals, which includes the RS-232, RS-530, and V.35 standards. Therefore, the Digital patch bay is the correct choice for accommodating these modules.

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  • 47. 

    Which device provides clocking-functions to the Promina 800 nodes?

    • Switching Exchange

    • Processor

    • Memory

    • T-Bus

    Correct Answer
    A. Switching Exchange
    Explanation
    The switching exchange device is responsible for providing clocking functions to the Promina 800 nodes. It ensures that the nodes are synchronized and operate on the same timing. The switching exchange device acts as a central hub, coordinating the communication between the nodes and managing the timing signals. Without the switching exchange, the nodes would not be able to communicate effectively and efficiently.

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  • 48. 

    At status level 2 of the Promina Operator Interface, the operator has access to query all nodes and

    • And modify the local node within the local domain

    • And modify all nodes within the local domain

    • And perform network system administration

    • Within the local domain

    Correct Answer
    A. And modify the local node within the local domain
    Explanation
    At status level 2 of the Promina Operator Interface, the operator has the ability to modify the local node within the local domain. This means that the operator can make changes to the specific node they are working on, but their modifications are limited to the local domain. They do not have the authority to modify all nodes within the local domain or perform network system administration tasks.

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  • 49. 

    Which Promina Operator Interface query command displays the voice compression available, software version installed, hardware type, and link status?

    • Node

    • Links

    • Alarms

    • Network

    Correct Answer
    A. Node
    Explanation
    The correct answer is "Node." The Node command in the Promina Operator Interface query displays various information including the voice compression available, software version installed, hardware type, and link status. This command provides a comprehensive overview of the node's configuration and status, making it a suitable choice for obtaining the specified information.

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Quiz Review Timeline (Updated): Mar 19, 2023 +

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  • Current Version
  • Mar 19, 2023
    Quiz Edited by
    ProProfs Editorial Team
  • Oct 27, 2009
    Quiz Created by
    Barrym07
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