While troubleshooting a network outage, you discover that an employee brought a switch from home into the office to connect additional equipment to the network. In order to increase his speed, he connected this switch to both network ports in his office, resulting in a bridge loop. Which of these can you implement to prevent future occurrences of this issue?（） RSTP。 root guard。 BPDU guard。 GLBP。
渗碳体
请叙述数据备份在银行应用中的重要性。
世界金融电子化的发展体现在哪些方面？
试验用的三倍频变压器，其阻抗压降（），磁通密度（），所以它的效率是很低的。
Why are consumer-grade access points and routers not the best choice for SMBs?（）
