使用手电钻时应采取哪些安全措施？
以下说法，正确的是（）。 字长是指CPU一次能同时处理的二进制位数。 字长是指CPU一次能同时处理的十进制位数。 内存是CPU可以直接访问的存储器。 外存是可以直接访问的存储器。
In a customer’s network， VLAN Trunking Protocol （VTP） is running with a domain named main1. VLANs 1，2，3，4，5，10，20 are active on the network. Suddenly the whole network goes down. No traffic is being passed on VLANs 2，3，4，5，10，20， however traffic passes on VLAN 1 and indicates all switches are operational. Right before the network problem occurred， a switch named TEST1 was added to the network. What three configuration issues on TEST1 could be causing the network outage？（） TEST1 is configured as a VTP server with a different domain name.。 TEST1 is not configured to participate in VTP.。 TEST1 is configured as a VTP server with the domain name main1.。 TEST1 has a lower VTP configuration revision than the current VTP revision.。 TEST1 has a higher VTP configuration revision than the current VTP revision.。 TEST1 is configured with only VLAN1.。
船舶的巴拿马运输河吨位（） 与船舶排水量成正比。 与船舶排水量成反比。 与排水量的关系不能确定。 与排水量无关。
Refer to the exhibit. Routers R1 and R2 have established a neighbor relationship and are exchanging routing information. The network design requires that R1 r eceive routing updates from R2, but not advertise any routes to R2. Which configuration command sequence will successfully accomplish this task? （） R1(config)# router eigrp 1 R1(config - router)# passive - interface serial 0。 R1(config)# access - list 2 0 deny any R1(config)# router eigrp 1 R1(config - router)# distribute - list 20 out serial 0。 R2(config)# access - list 20 permit any R2(config)# router eigrp 1 R2(config - router)# distribute - list 20 in serial 0。 R1(config)# access - list 20 permit any R 1(config)# router eigrp 1 R1(config - router)# distribute - list 20 in serial 0。 R2(config)# access - list 20 deny any R2(config)# router eigrp 1 R2(config - router)# distribute - list 20 out serial 0。 R2(config)# router eigrp 1 R2(config - router)# passive - interface serial 0。
当皮带发出刺耳的尖叫声应（）。
