A network administrator wants to ensure that only the server can connect to port Fa0/1 on a Catalyst switch. The server is plugged into the switch Fa0/1 port and the network administrator is about to bring the server online. What can the administrator do to ensure that only the MAC address of the server is allowed by switch port Fa0/1？ （） Configure port Fa0/1 to accept connections only from the static IP address of the server.。 Employ a proprietary connector type on Fa0/1 that is incompatible with other host connectors.。 Configure the MAC address of the server as a static entry associated with port Fa0/1.。 Bind the IP address of the server to its MAC address on the switch to prevent other hosts from spoofing the server IP address.。 Configure port security on Fa0/1 to reject traffic with a source MAC address other than that of the server.。 Configure an access list on the switch to deny server traffic from entering any port other than Fa0/1.。
《铁路旅客列车消防安全管理规定》吸烟处应有明显标志并配备（），地板和壁板应保持完好，无孔洞和缝隙。 打火机。 火柴。 痰盂。 烟灰盒。
颁发整个工程的移交证书后14天内，发包人应将保留金总金额的（）退还承包人。 A.30% 。 B.40% 。 C.50% 。 D.80%。
目前使用的车载星形网络按传输媒介可分为（） 由普通导线传输数据。 由光纤传输数据。 由同轴电缆传数据。 由玻璃纤维传输数据。
无机结合料稳定材料的无侧限抗压强度应计算至0.1Mpa，同组试件中采用（）法则剔除异常值，对小、中、大试件允许出现的异常值数量分别为（）。 σ。 3σ。 1个、2个和4个。 1个、2个和3个。
油浆结焦的主要化学过程是（）聚合反应
