H12-224 : HCNP-R&S Fast Track (Huawei Certified Network Professional – Routing & Switching Fast Track) : Part 38
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Which of the following statements regarding the stateful inspection firewall is true?
- The stateful inspection firewall needs to match the rules for each incoming packet.
- Because UDP is a connectionless protocol, so the stateful inspection firewall cannot match UDP packets with the status table.
- When the stateful inspection firewall checks packets, packets of one same connection are not correlated.
- The stateful inspection firewall only needs to match the first data packet against a rule, and the subsequent packets of the connection are matched directly in the state table.
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What is the multicast destination address of VRRP packets?
- 224.0.0.18
- 224.0.0.20
- 224.0.1.18
- 224.0.1.20
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What is the default priority of the device in a VRRP group?
- 200
- 150
- 100
- 0
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BFD is a universal fast detection technology that can implement fast switchover, so BFD does not need to be used with other fast switching technologies.
- TRUE
- FALSE
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What are the basic work process steps of SDN? (Choose three.)
- Collect network topology information.
- Collect NE resource information.
- Collect forwarding information.
- Generate routes for internal exchange.
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Which of the following command is used to configure the listening address of the SDN controller?
- openflow listening-ip 1.1.1.1
- sdn controller source-address 1.1.1.1
- controller-ip 1.1.1.1
- sdn listening-ip 1.1.1.1
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How is OPEX defined?
- Maintenance cost
- Total cost of ownership (TCO)
- Operating cost
- O&M cost
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The project scope can be determined from three aspects. Which of the following is not included?
- Functions and modules to be realized by the project
- Geographic range of the network
- Investment budget of the project
- Responsibility division between the project and other matching systems
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Which of the following tasks need to be completed during the planning stage of a project? (Choose two.)
- Work out the technical design
- Know the project background
- Determine the model of network devices in the project
- Make dear the requirements of a project
- Plan IP addresses
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Enterprise services have strict requirements for QoS in networks. Which of the following counters can be used to indicate network QoS? (Choose three.)
- Stability
- Bandwidth
- Delay
- Jitter
- Security
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Compared with a three-layer network architecture, a two-layer network architecture has simple topology and high data forwarding efficiency. The network architecture will transform to the two-layer architecture, and the three-layer network architecture will be gradually phased out.
- TRUE
- FALSE
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On the border between an enterprise network and its external network, which of the following devices is deployed at the outermost side of the enterprise network?
- IDS
- IPS
- FW
- VPN
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On a Layer 2 switching network, devices forward data based on MAC addresses. Therefore, data filtering can be performed based on MAC addresses, and a firewall in transparent cannot filter out Layer 3 information in data packets.
- TRUE
- FALSE
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Which of the following scenarios is a loop test applicable to?
- To test whether applications are properly connected
- To test whether a routing protocol can prevent loops
- To test whether a switch can prevent loops and broadcast
- To test whether a physical link is disconnected
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In most cases, optical power is expressed in dBm. Which of the following values in dBm is supported by most optical transceiver devices to receive and identify data?
- -30 dBm
- -10 dBm
- 10 dBm
- 30 dBm
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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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The device installation procedure is as follows: Prepare tools -> Install mounting ears -> Install floating nuts and guide rails based on site requirements -> Install the device in the cabinet.
- TRUE
- FALSE
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If the number of checked goods is different from the number of goods on the packing list, you can unpack and inspect goods and then contact the vendor to handle the inconsistency.
- TRUE
- FALSE
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Which of the following items on the packing list need to be checked during unpacking and inspection? (Choose all that apply.)
- Part number
- Part model
- Number of parts
- Project name
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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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