Which four statements about an IP service level agreement （SLA） are true？ （） ["SLA responder knows type of operation， the port used， and duration.","SLA responder inserts in and out timestamps in the packet payload.","SLA sender and responder use the IP SLA Control Protocol to communicate with each other before","SLA sender and responder communication can be encrypted.","SLA sender and responder communication can be authenticated with MD5."]
信贷配给
请问，新疆的哪座城市被评定为国家知识产权工作示范城市？全国共有多少家城市列入国家知识产权工作示范城市
婚前检查发现男女双方患有指定传染病在传染期内或者有关精神病在发病期内，按规定应当（） ["隔离治疗","暂缓结婚","禁止结婚","劝其住院治疗","申请鉴定"]
What is valid reason for a switch to deny port access to new devices when port security is enabled?（） [" The denied MAC addresses have already been learned or confgured on another secure interface in the same VLAN."," The denied MAC address are statically configured on the port."," The minimum MAC threshold has been reached."," The absolute aging times for the denied MAC addresses have expired."]
古代埃及国家最高度集权的专制统治者是谁？
