H12-223 : HCNP-R&S-IENPÂ (Huawei Certified Network Professional-Improving Enterprise Network Performance) : Part 02
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Huawei’s USG6X00 series firewalls belong to the UTM firewall product and support stateful inspection packet filtering as well as intrusion detection, anti-virus, and URL filtering.
- TRUE
- FALSE
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To improve Internet egress reliability, an enterprise uses multiple links to connect to different carrier networks. This mode requires attention to both the incoming and outgoing traffic paths. Otherwise, network quality may be affected.
- TRUE
- FALSE
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Data center switches greatly differ from campus switches.
Which of the following features are specific to data center switches but are not supported by campus switches?
- MSTP
- TRILL
- NFV
- FCoE
- VxLAN
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Currently, to which of the following modes does network design conform?
- Modular
- Automatic
- Hierarchical
- Modern
- Standard
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When communicating with customers, Huawei engineers need to be groomed, well behaved, and appropriate in language use.
- TRUE
- FALSE
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During unpacking and inspection, the device appearance is intact and all modules work properly after the first power-on. After the device continuously runs for 24 hours, a fault occurs on a card. This situation does not conform to DOA conditions.
- TRUE
- FALSE
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Which of the following functions is not achieved by formulating a project delivery process?
- Improve customer satisfaction
- Determine the division of responsibilities
- Improve work efficiency
- Reduce project risks
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Which of the following statements regarding the basic device information check is true?
- You can run the display patch-information command to check patch information.
- The device time should be consistent with the actual time (time difference ≤ 24 hours) so that a fault can be accurately located based on the occurrence time.
- The debugging functions can be enabled when the device is running properly.
- You can run the display current-configuration command to check the PCB version and the software version of a card.
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The display interface brief command can be executed to check the interface status. When sent and received traffic exceeds 70%, it can be determined that the traffic volume is high.
- TRUE
- FALSE
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Software upgrade operations are similar for Huawei Datacom products. Therefore, before a software upgrade, you only need to briefly read the upgrade guide.
- TRUE
- FALSE
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During MSTP troubleshooting, the display current-configuration command is executed to obtain the configuration file of the device.
Which of the following statements is false?
- Check the port configuration to verify that the MSTP-enabled port is configured (for example, using the bpdu enable command) to send protocol packets.
- The port connected to a user device has MSTP disabled or is configured as the edge port.
- The BPDU tunnel configuration has no impact on MSTP.
- Check whether the interface is added to the correct VLAN.
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During EBGP peer relationship troubleshooting, it is found that two directly connected devices set up connections using loopback interfaces. Therefore, the display current-configuration configuration bgp command is executed to check the configuration of peer ebgp-max-hop hop-count.
Which of the following statements is correct?
- The hop count must be greater than 1.
- The hop count must be greater than 2.
- The hop count must be greater than 15.
- The hop count must be greater than 255.
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In the structured network troubleshooting process, troubleshooting results are predictable and the troubleshooting impact is controllable, without generating new risks.
- TRUE
- FALSE
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During the structured network troubleshooting process, which of the following items require attention in the information collection phase?
- What information to collect
- How to collect information
- Whether authorization is required
- Risks in the information collection phase
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Assume that you received a phone call at your office seat. An employee said he/she could not access the Internet on the PC and needed your technical support. Then you ran the ping command on his/her PC and ran the tracert command to check where packet loss occurred.
Which of the following troubleshooting methods is used in this process?
- Configuration comparison
- Bottom-up
- Service traffic path check
- Top-down
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Which of the following operations may be needed for checking the service traffic plan? (Choose two.)
- Check the service traffic path at the data link layer.
- Check the service traffic path at the network layer.
- Survey the service traffic path planning in the network design phase.
- Check the fault frequency.
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Which of the following is the core idea of network troubleshooting?
- Service traffic path check
- Determining and analysis
- Information collection
- Top-down
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Which of the following operations is unnecessary to resolve a failure for hosts in the same VLAN to communicate with each other?
- Run the display interface interface-type interface-number command in any view to check the status of communication interfaces.
- Run the display mac-address command on the switch to check MAC address entries including the MAC address, port number, and VLAN ID.
- Run the display vlan vlan-id command in any view to check whether the VLAN for communication interfaces has been created.
- Run the display current-configuration command to check the PCB version and the software version of a card.
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In a complex network environment, the unstructured network troubleshooting process may result in a new fault, making network troubleshooting more difficult.
- TRUE
- FALSE
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A network administrator fails to access devices on the internal network through Telnet. Which of the following causes is the most impossible?
- The route is unreachable, and the client fails to establish a TCP connection with the server.
- The number of login users reaches the upper limit.
- An ACL is bound in the VTY user interface view.
- The protocol inbound all command is configured in the VTY user interface view.
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