为了Network Segment的计数器的有效，需要安装网络监视器的（）

A . A switch. B . A router. C . A network adapter card. D . A hub. E . A repeater.

A . Network-LSA使用LSA头部中的Link State ID字段标识所描述网段的IP网络地址 B . Network-LSA使用Network Address字段标识所描述网段的IP网络地址 C . Network-LSA使用Link State ID字段和Network Mask字段共同标识所描述网段的IP网络地址 D . Network-LSA使用Network Address字段和Network Mask字段共同标识所描述网段的IP网络地址

A . 有效的沟通 B . 激励 C . 领导能力 D . 后勤和供应链

A . 1 B . 2 C . 3 D . 4

A .  Cisco SLM series B .  Cisco SD series C .  Cisco SFE series D .  Cisco SGE serie

A . Filtering can occur based on Layer 3 information. B . Broadcasts are eliminated. C . Routers generally cost less than switches. D . Broadcasts are not forwarded across the router. E . Adding a router to the network decreases latency.

A . 选择合适的沟通方式 B . 善于运用反馈 C . 学会积极倾听 D . 坚守自己的观点

A . Filtering can occur based on Layer 3 information. B . Broadcasts are eliminated. C . Routers generally cost less than switches. D . Broadcasts are not forwarded across the router. E . Adding a router to the network decreases latency.

A . 时间及时 B . 资金有效 C . 来源合法 D . 量要适当

A . PCH B . PPCH C . CBCH D . PAGCH

A . 正确 B . 错误

A . Switch1 B . Switch2 C . Switch3 D . Switch4

A . the entire network switches to 802.1D and generates BPDUs to determine root bridfe status. B . A migration delay of three seconds occurs when the port that is connected to the 802.1D bridge comes up C . The entire network reconverges and a unique root briddge for the 802.1D segment， and a root bridge for the 802.1W segment， is chosen D . the first hop 802.1w switch that is connected to the 802.1D runs entirely in 802.1DCompatibility mode and converts the BPDUs to either 802.1D or 802.1W segments of the network E . Classic 802.1D timers， Such as forward Delay and Max-age， will only be used as a backup， and will not be necessary if point-to-point links and edge prots are properly identified and set by the administrator.

A . IP地址 B . 物理地址 C . 网络层 D . 数据链路层

A . A.10％甲醛 B . 1％甲苯 C . 40％甲醛 D . 浓盐酸 E . 20％甲苯

A . IPv6 allows a host to create its own IPv6 address that will allow it to communicate to other devices on a network configured via DHCP. IPv4 does not provide a similar capability for hosts. B . IPv6 provides for more host IP addresses but IPv4 provides for more network addresses. C . Hosts can be configured to receive both IPv4 and IPv6 addresses via DHCP. D . Host configuration options for IPv4 can be either statically assigned or assigned via DHCP.Host configuration options for IPv6 can be statically assigned only. E . IPv4 and IPv6 addresses c an be simultaneously assigned to a host but not to a router interface.

A . The number of broadcast domains will be decreased. B . It will make the broadcasting of traffic between domains more efficient between segments. C . It will increase the number of collisions. D . It will prevent segment 1's broadcasts from getting to segment 2. E . It will connect segment 1's broadcasts to segment 2.

A . Filtering can occur based on Layer 3 information. B . Broadcasts are eliminated. C . Routers generally cost less than switches. D . Broadcasts are not forwarded across the router. E . Adding a router to the network decreases latency.

A . VLANs increase the size of collision domains. B . VLANs allow logical grouping of users by function. C . VLANs simplify switch administration. D . VLANs enhance network security.

A . Data, Frame, Packet, Segment, Bit B . Data, Frame, Segment, Packet, Bit C . Data, Packet, Frame, Segment, Bit D . Data, Packet, Segment, Frame, Bit E . Data, Segment, Frame, Packet, Bit F . Data, Segment, Packet, Frame, Bit

A . The hosts will have different default gateway IP addresses and different MAC addresses foreach rtouter B . The default gateway address of each host should be set to the virtual IP address C . The hosts will learn the proper default gateway IP address from Router R1 D . The default gateway address of each host should be set to the real IP address of the router E . None of the other alternatives apply

A．测量低频周期 B．克服转换误差 C．减小测频时的量化误差影响 D．测量低频失真

A.成本中心 B.费用中心 C.责任中心 D.控制中心

是 否