进行桩基承载能力极限状态验算时，应采用荷载的（)。A．长期作用效应组合B．作用效应基本组合C．地震

A. Two switches are connected via a trunk. Both switches have been assigned an IP address, subnet mask, and default gateway. A ping is successful between the two switches. However, VLAN information is not passed from one switch to the other switch.

B. A router and a switch have been assigned an IP address, a subnet mask, and a default gateway. They are directly connected, but a ping between the two devices fails.

C. A router connects to another router through a serial interface. Both routers have been assigned an IP address, subnet mask, and default gateway. The routers are running RIP and the networks directly connected to the first router do not pass to the second router. However, a ping from one router to the serial interface of the directly connected neighboring router is successful.

D. A router connects to another router via a switch. Both routers and the switch have been assigned an IP address, subnet mask, and default gateway. Neither the routers nor the switch are able to ping one of the hosts that is directly to the switch.

A. to a core switch running Cisco NSF and SSO from redundant distribution switches connected with a Layer 2 link

B. to a core switch running Cisco NSF and SSO from redundant distribution switches connected with a Layer 3 link

C. to two core switches from redundant distribution switches connected with a Layer 2 link

D. to two core switches from redundant distribution switches connected with a Layer 3 link

E. to two core switches running Cisco NSF and SSO from two redundant distribution switches running Cisco NSF and SSO

A. Redundant power supplies with one power supply connected and one power supply as a hot spare.

B. Redundant power supplies with each connected to a separate power circuit.

C. Redundant power supplies connected via a Y-cable.

D. Redundant power supplies with each connected to the same power circuit.

The important information is ______ from one computer to anther through a telephone line.

A．transferred

B．transformed

C．transmitted

D．transported

osts connected to SwitchA can communicate with hosts in the same VLAN connected to SwitchB. Based on the output shown, what is the most likely problem？（）

A.The access link needs to be configured in multiple VLANs.

B.The link between the switches is configured in the wrong VLAN.

C.The link between the switches needs to be configured as a trunk.

D.VTP is not configured to carry VLAN information between the switches.

E.Switch IP addresses must be configured in order for traffic to be forwarded between the switches

A.a switch with a trunk link that is configured between the switches

B.a router with an IP address on the physical interface that is connected to the switch

C.a switch with an access link that is configured between the switches

D.a router with subinterfaces configured on the physical interface that is connected to the switch

A “dead front” switchboard is one _____.

A.without switches on it

B.with insulated switches and no exposed terminals

C.without circuit breakers

D.without safety hand nails nor rubber mats

atically distributed to other Catalyst switches in the network.What conditions must be met in order for the VLANs configured on this switch to be automatically configured on the other switches？（）

A. The switch that will share its VLAN configuration must be in VTP server mode.

B. The switches must be in the same VTP domain.

C. The switch that will share the VLAN information must be configured as the root bridge.

D. The switches must be connected over VLAN trunks.

E. The switches must be configured to use the same STP version.

F. The switches must have VTP pruning activated.