A switch is configured with all ports assigned to vlan 2 with full duplex FastEthernet to segment existing departmental traffic. What is the effect of adding switch ports to a new VLAN on the switch?()
A. More collision domains will be created.
B. IP address utilization will be more efficient.
C. More bandwidth will be required than was needed previously.
D. An additional broadcast domain will be created.
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炉外精炼主要有()等几项安全措施。
A. 设备安全
B. 作业安全
C. 环境安全
液压多功能钳的额定工作压力为()Mpa。
A. 24
B. 48
C. 54
D. 63
牛、羊宰前停饲管理时间一般应为()小时。
A. 12小时
B. 18小时
C. 24小时
D. 36小时