H12-223 by Huawei Valid Free Exam Practice Test

Question 1

Which of the following WAN links are used on a packet switched network? (Multiple Choice)

A. MSTP B. ISDN C. X.25 D. ATM E. PSTN

Correct Answer: C,D

Question 2

Which of the following statements regarding IP address allocation are true? (Multiple Choice)

A. Variable length subnet mask (VLSM) is often used for determining mask lengths to improve IP address efficiency. B. All IP addresses on a network must be unique except when anycast is used. C. IPv4 addresses are classified into Classes A, B, and C. D. The mask length of /24 can simplify network design.

Correct Answer: A,B

Question 3

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. The fault cause is not found, and it takes time for the device to recover from the fault. B. A small interval for sending VRRP packets may cause status flapping of the backup device. C. A large interval for sending VRRP packets may cause status flapping of the backup device. D. Status flapping of the backup device is irrelevant to the interval for sending VRRP packets.

Correct Answer: B

Question 4

DHCP snooping is a valid security mechanism. Which of the following attack prevention methods can DHCP snooping provide? (Multiple Choice)

A. Defense against MAC address flooding attacks B. Defense against bogus DHCP server attacks C. Source MAC address check for data packets in collaboration with DAI D. Defense against DoS attacks on the DHCP server E. Source IP address check for data packets in collaboration with IPSG

Correct Answer: B,D,E

Question 5

A user reported a failure to receive emails through the email client. Which of the following are possible causes? (Multiple Choice)

A. The client settings are incorrect. B. The email server is faulty. C. The user does not have the required rights. D. The link is faulty.

Correct Answer: A,B,C,D

Question 6

Which of the following is not a preliminary preparation for the dry cutover plan?

A. Risk assessment B. Cutover target C. On-site defense D. Overview of the live network

Correct Answer: C

Question 7

After PPP Multilink is configured, data is evenly allocated to member links based on the source and destination addresses,

A. FALSE B. TRUE

Correct Answer: A

Question 8

Switches run the MSTP protocol by default. Which of the following statements regarding the default status is true?

A. Each switch runs in an independent region. B. Due to lack of configuration, all switches switch the running mode to RSTP. C. All switches run in the same region by default. D. The STP calculation speed is faster than that when multiple instances are configured.

Correct Answer: A

Question 9

When a large number of IP phones and WLAN APs exist on a network, which of the following switches is used?

A. Switches supporting QoS B. Switches supporting SACG C. Switches supporting PoE D. Switches supporting STP edge ports

Correct Answer: C

Question 10

Which of the following regulations does not belong to the onsite behavior regulations during the service process?

A. Operation regulations B. Attitude regulations C. Rights regulations D. Preparation regulations

Correct Answer: D

Question 11

In a complex network environment containing finance, OA, production, and more service systems, which of the following items is the first concern for troubleshooting?

A. Equipment room environment B. Data flow direction of each service system C. Network device model D. IP address assignment

Correct Answer: B

Question 12

The migration kick-off meeting is held to communicate with the customer about the project. Communication with other involved parties is not important.

A. FALSE B. TRUE

Correct Answer: A

Question 13

The project scope can be determined from three aspects. Which of the following is not included?

A. Investment budget of the project B. Geographic range of the network C. Functions and modules to be realized by the project D. Responsibility division between the project and other matching systems

Correct Answer: A

Question 14

Which of the following statements regarding Huawei network optimization service (NOS) is false?

A. Software assessment & recommendation is a technique to assess and analyze all software platforms used by Party A in the service period. Based on the assessment result, this service can recommend a proper software version to prevent issues caused by known issues. B. Life cycle assessment (LCA) is a technique to check and analyze the software and hardware life cycles of devices on the live network. With LCA, specific measures are taken for products that will reach the end of sales, production, software update, or technical support, preventing life cycle-caused operation risks. C. Configuration assessment & optimization is a technique to develop and periodically maintain device configuration profiles based on customer requirements. Based on the periodic software assessment & recommendation result, this service applies related software features to command lines in the recommended target version, implementing refined configuration management. D. Network health check enables Huawei technology experts to review the rationality, security, and scalability of the network architecture based on industry-leading optimal experience, and to provide improvement suggestions based on the assessment result.

Correct Answer: D

Question 15

Which of the following cabling modes are commonly used in a data center? (Multiple Choice)

A. PHP B. DOD C. NSF D. EOR E. TOR

Correct Answer: D,E

Huawei Certified Network Professional-R&S-IEEP - H12-223 Exam Practice Test