Hot Standby Router Protocol (HSRP) is able to provide network redundancy for IP networks. Concerning HSRP load sharing, which two descriptions make sense?（） It is achieved by using more than one HSRP group.。 It is done in regards to either round robin or weight basis.。 It is used to offload the active router in a certain HSRP group.。 The return traffic is influenced by HSRP load sharing configuration.。 Single group HSRP is used to achieve more efficient link utilization.。
Which three characteristics are true of the ProtectLink Gateway product?（） protects from spyware and phishing attacks。 provides web server content filtering。 provides encryption between a browser and a web server。 is bundled in the SPS platform。 blocks 97% of SPAM。 provides content filtering for e-mail。
使用伪造、变造的国库券进行诈骗活动，数额在（）元以上的，应予追诉 5000。 1万。 2万。 5万。
春夏养阳
简述合同的概念和合同成立的条件
最近几年，用于道路建设的新材料、新技术、新设备不断出现在各个城市的市政工程建设中，其中不属于新技术，新材料的是（）
