What is true about Quality of Service (QoS) for VPNs?()
A. QoS preclassification is only supported on generic routing encapsulation (GRE) and IPsec VPNs
B. QoS preclassification is not required in Layer 2 Tunneling Protocol (L2TP), Layer2 Forwarding (L2F), and Point-to-Point Tunneling Protocol (PPTP) VPNs
C. QoS preclassification is supported on IPsec AH VPNs, but not on IPsec ESP VPNs
D. the QoS-for-VPNs feature (QoS preclassification) is designed for VPN transport interfaces
E. with IPsec tunnel mode, the type of service (ToS) byte value is copied automatically from the original IP header to the tunnel header
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注册开通中国移动手机支付的步骤是()。
A. 客户登陆手机支付业务网站(cmpay.10086.cn)
B. 点击“注册”,输入手机验证码
C. 确认阅读并同意手机支付业务客户服务协议
D. 确认个人信息并设置登录密码和支付密码以及密保问题和别名,点击“提交”开户
避雷器发生本体炸裂、引线脱落接地故障时,应该如何处理?
列控车载设备只能通过动态方式及时发现故障位置。
A. 正确
B. 错误
企业因注册验资的需要,可以申请开立专用存款账户。
A. 正确
B. 错误