The following describes port scanning Which is wrong? (single selection).

When the scanner sends a Syn message If the peer does not reply, the peer port is down.

TCP port scanning uses the three-way handshake feature

The purpose of port scanning is to determine what kind of services are enabled on the peer host, so as to find an entry for intrusion.

For UDP port scanning It is to determine whether the port is open by sending a UDP data packet to the peer with a specific port number and observing whether the ICMP port is unreachable packet.

About Huawei's firewall defense technology against SYN Flood Which of the following options is correctly described?

The limiting method of limiting the number of TCP half-open connections can prevent SYN Flood political attacks

The TCP new connection rate limiting method protects against SYN Flood attacks

Through SYN Cookie technology, SYN Flood can be prevented

By purchasing inter-domain security policies, SYN Flood attacks can be prevented

In the Cloudabric scenario, which of the following ways is the firewall deployed?

Hot standby for both active and standby machines

Primary/standby dual-machine images

Free Huawei H12-731_V2.0 Exam Practice Questions & Explanations

Last updated on: Nov 11, 2026
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