Whichofthefollowingservertypeswillassignauniqueaddresstotheclient’smachines?()
A. WINS
B. DHCP
C. NTP
DNS
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Which of the following is used to serve as an emergency backup line to troubleshoot a broadbandconnection on many routers?()
A. DSL
B. POTS
C. VDSL
D. Smart jack
工作票"工作要求的安全措施"中"断路器(开关)"栏只填写设备编号。()
槽轮机构和棘轮机构一样,可以方便地调节槽轮转角的大小。()
在紧急情况下,可使用不符合规定的导线作接地或短路之用。()