[Q30-Q53] Certification Training for H12-223 Exam Dumps Test Engine [2022]

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Certification Training for H12-223 Exam Dumps Test Engine [2022]

Jun 17, 2022 Step by Step Guide to Prepare for H12-223 Exam

NO.30 Which of the following work is not prepared before the migration?

Hardware test

Software test

Expenses

Tools

NO.31 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

NO.32 Which of the following statements regarding network maintenance work are true? (Multiple Choice)

For device software maintenance, onsite operations are allowed but only remote operations are recommended.

The device software running is closely related to services running on the device.

The external environment where hardware runs does not need special attention.

For device environment maintenance, maintenance personnel need to go to the site or even use some professional tools for observation and measurement.

NO.33 Which of the following is the core idea of network troubleshooting?

Service traffic path check

Determining and analysis

Information collection

Top-down

NO.34 Which of the following is not an external risk to a project?

Exchange rate change

Rainstorm disaster

Social unrest

Differences of industrial standards

NO.35 Which of the following parameters are used to evaluate switch performance? (Multiple Choice)

Port density

CPU frequency

Switching capacity

Packet forwarding capability

MAC address table size

Port rate

NO.36 Which of the following statements regarding OSPF neighbor relationship faults is false?

The ExStart state indicates that two neighbor routers have inconsistent MTUs or the same OSPF Router ID (RID).

For non-DR and non-BDR routers on an Ethernet link, the 2-Way state is acceptable.

The Init state indicates that the router has received Hello packets from its neighbors but the received Hello packets do not contain the OSPF RID of the receiving router.

The Attempt state indicates that the router does not send unicast Hello packets to configured neighbors.

NO.37 Which of the following devices forwards data based on MAC addresses in data frames?

Hub

Network bridge

Router

Firewall

NO.38 Which of the following statements regarding the device environment check is true?

Devices should be placed stably in flat positions in a ventilated and dry environment, and only a few sundries can be placed around the devices.

For energy saving, the current temperature and humidity in the equipment room must meet requirements of devices. Air conditioners are not required to run continuously and stably.

It is recommended that power cables and service cables be placed together in a neat and orderly manner.

When the grounding mode and the grounding resistance are checked, the working ground, protection ground, and building lightning protection ground should be separately configured in the equipment room.

NO.39 Coaxial cables are used to carry video signals of cable TVs but not data signals.

TRUE

FALSE

NO.40 Switches run the MSTP protocol by default. Which of the following statements regarding the default status is true?

All switches run in the same region by default.

The STP calculation speed is faster than that when multiple instances are configured.

Due to lack of configuration, all switches switch the running mode to RSTP.

Each switch runs in an independent region.

NO.41 Which of the following authorization items is not required for risky operations?

Management authorization

Technology authorization

Customer authorization

Administrative authorization

NO.42 Which of the following operations may be needed for checking the service traffic path? (Multiple Choice)

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.

NO.43 Which of the following events represent the end of the network planning stage?

Project initiation

Bid release

Contract signing

Preliminary project acceptance

NO.44 Which of the following steps or measures are taken in the one-by-one check phase of the structured network troubleshooting process? (Multiple Choice)

Contingency plan

Rollback preparation

Temporary environment setup

Information filter

NO.45 Which of the following operations are performed during migration acceptance? (Choose three.)

Documentation transfer

Transfer-to-maintenance training

Acceptance meeting

Business expense accounting

NO.46 In most cases, a risky operation solution can be reviewed and finalized one day before implementation.

TRUE

FALSE

NO.47 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

NO.48 Which of the following subsystems are involved in building cabling? (Multiple Choice)

Horizontal subsystem

Access subsystem

Backbone subsystem

Vertical subsystem

Switching subsystem

NO.49 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

NO.50 Which of the following contents is not negotiated on a project kick-off meeting?

Determine customer’s requirements.

Verify implementation costs.

Confirm owners of party A and party B.

Determine the project management regulations.

NO.51 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.

NO.52 Upon VRRP group flapping, the vrrp vrid timer advertise command is executed on the router to increase the interval for sending VRRP packets, and then the display vrrp command is executed repeatedly on the backup device to check the State field. It is found that the value of State remains unchanged. Which of the following statements regarding these operations is true?

A small interval for sending VRRP packets may cause status flapping of the backup device.

A large interval for sending VRRP packets may cause status flapping of the backup device.

Status flapping of the backup device is irrelevant to the interval for sending VRRP packets.

The fault cause is not found, and it takes time for the device to recover from the fault.

NO.53 Which of the following causes may result in an IS-IS neighbor relationship fault? (Multiple Choice)

The devices on two ends of a link have the same system ID.

The devices on two ends of a link have inconsistent IS-IS levels.

When an IS-IS Level-1 neighbor relationship is established, the devices on two ends of a link have inconsistent area addresses.

The IP addresses of interfaces on two ends of a link are on different network segments.

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[Q30-Q53] Certification Training for H12-223 Exam Dumps Test Engine [2022]

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