What are the two reasons for the appearance of 0.0.0.0 as the next hop for a network when usingthe "show ip bgp" command？（）

A . The network was originated via redistribution of an interior gateway protocol into BGP B . The network was defined by a static route C . The network was originated via a network or aggregate command D . The network was learned via EBGP E . The network was learned via IBGP

A . You have too many tables. B . Your tables are too long. C . Your tables have difficult names. D . You want to work on your own tables. E . You want to use another schema's tables. F . You have too many columns in your tables.

A . to control vty access into a router   B . to control broadcast traffic through a router   C . to filter traffic as it passes through a router   D . to filter traffic that originates from the router   E . to replace passwords as a line of defense against security incursions&e

A . Information about port roles is sent to all switches. B . RSTPs that are based on Cisco products require no additional configuration. C . Features such as UplinkFast and BackboneFast are compatible with RSTP. D . An RSTP that is based on Cisco products generally performs better than the Cisco proprietary 802.1D enhancements.

A . The network was originated via redistribution of an interior gateway protocol into BGP. B . The network was defined by a static route. C . The network was learned via IBGP. D . The network was learned via EBGP. E . The network was originated via a network or aggregate command.

A . Smothers burning surfaces，organically destroys fuel B . Cools fire and adjacent surfaces，provides protective barrier C . Reaches areas not protected by steam or CO smothering systems D . Allows fire to be attacked from leeward，saturates liquid surface

A . to verify the type of cable interconnecting two devices B . to determine the status of network services on a remote device C . to obtain VLAN information from directly connected switches D . to verify Layer 2 connectivity between two devices when Layer 3 fails E . to obtain the IP address of a connected device in order to telnet to the device F . to determine the status of the routing protocols between directly connected router

A . telnet access does not require a password B . nat C . no broadcast D . chanage of destination address in the ipv6 header E . chanage of source address in the ipv6 header F . autoconfiguratio

A . serialization delay B . overrun C . full buffers and queues D . propagation delay E . shaping delay F . TCP header error

A . the use of hosted email services eliminating the need for local security B . the perceived costs of security solutions C . the lack of risk analysis D . the lack of threats to their network E . the belief that free security tools are sufficient F . the desire to avoid unnecessary technologie

A . to control vty access into a router B . to control broadcast traffic through a router C . to filter traffic as it passes through a router D . to filter traffic that originates from the router E . to replace passwords as a line of defense against security incursio

A .  to eliminate the need for VoIP gateways B .  to scale a VoIP installation with multiple gateways C .  to provide call admission control and limit the number of simultaneous calls on the network  D .  to meet the requirement to control H·323 gateways on a LAN E .  to accept call requests and reduce the load on the gateway

A . telnet access does not require a password B . nat C . no broadcast D . chanage of destination address in the ipv6 header E . chanage of source address in the ipv6 header F . autoconfiguratio

A . Router1 has specific boot system command that instruct it to load IOS from TFTP server. B . Router1 is acting as a TFTP server for other routers. C . Router1 cannot locate a valid IOS image in flash memory. D . Router1 defaulted to ROMMON mode and loaded the IOS image from a TFTP server. E . Cisco routers will first attempt to load a image from TFTP for management purposes.

A . to verify the type of cable interconnecting two devices B . to determine the status of network services on a remote device C . to obtain VLAN information from directly connected switches D . to verify Layer 2 connectivity between two devices when Layer 3 fails E . to obtain the IP address of a connected device in order to telnet to the device F . to determine the status of the routing protocols between directly connected router

A . to verify the type of cable interconnecting two devices B . to determine the status of network services on a remote device C . to obtain VLAN information from directly connected switches D . to verify Layer 2 connectivity between two devices when Layer 3 fails E . to obtain the IP address of a connected device in order to telnet to the device F . to determine the status of the routing protocols between directly connected router

A．Drought. B．Toxin in the crop. C．The mosaic virus. D．The barren soil.

A．This is to foster eating disorder among the models. B．Clothes looks better on thin models. C．This is to be deliberately different from normal women. 此题为多项选择题。