Given the topology of a server （with IP 209.165.202.150） protected behind the inside interface of an ASA/PIX，and the Internet on the outside interface. Users on the Internet need to access the server at any time， but the firewall administrator does not wa

第1题：

Topology拓扑

第2题：

Which of the following are considered common elements found in a set of network documents？（Choose all that apply.）（）

• A、Building schematic
• B、IGP community elements
• C、Listing of interconnections
• D、Physical topology diagram
• E、Logical topology diagram
• F、Inventory of network equipment

第3题：

In what location are EIGRP successor routes stored?（）

• A、In the routing table only.
• B、In the neighbor table only.
• C、In the topology table only.
• D、In the routing table and neighbor table.
• E、In the routing table and topology table.
• F、In the topology table and neighbor table.

第4题：

以「集线器」为中心的区域网路，是属于哪一种网路拓扑（Topology）结构？（）

• A、汇流排（Bus）网路拓扑（Topology）
• B、环状（Ring）网路拓扑（Topology）
• C、星状（Star）网路拓扑（Topology）
• D、三角状（Triangular）网路拓扑（Topology）

第5题：

Which of these statements is true of routing protocols in a hub-and-spoke IPsec VPN topology？（）

• A、 EIGRP can summarize per interface.
• B、 OSPF router databases remain independent.
• C、 When they are configured with stubs， EIGRP regularly floods the topology.
• D、 OSPF topology decisions are made independent of hierarchy or area.

第6题：

Which statement is correct about RSTP port roles？（）

• A、The designated port is the switch port on every nonroot bridge that is the chosen path to theroot bridge. There can be only one designated port on every switch. The designated portassumes the forwarding state in a stable active topology. All switches connected to a given segment listen to all BPDUs and determine the switch that will be the root switch for a particular segment.
• B、The disabled port is an additional switch port on the designated switch with a redundant link to the segment for which the switch is designated. A disabled port has a higher port ID than the disabled port on the designated switch. The disabled port assumes the discarding state in astable active topology.
• C、The backup port is a switch port that offers an alternate path toward the root bridge. The backup port assumes a discarding state in a stable， active topology. The backup port will be present on nondesignated switches and will make a transition to a designated port if the current designated path fails.
• D、The root port is the switch port on every nonroot bridge that is the chosen path to the root bridge. There can be only one root port on every switch. The root port assumes the forwarding state in a stable active topology.

第7题：

TTL 指的是？（）

• A、Tree Topology Line
• B、Time To Live
• C、Transport Topology Line
• D、Trunk Transport Line

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第13题：

Ring topology环拓扑

第14题：

Which type of EIGRP route entry describes a feasible successor?（）

• A、a primary route,stored in the routing table
• B、a backup route,stored in the routing table
• C、a backup route,stored in the topology table
• D、a primary route,stored in the topology table

第15题：

Which two are characteristics of link-state routing protocols?（） (Choose two.)

• A、Routers choose a best path for a destination based on the SPF algorithm.
• B、All routers in a given area or level build a consistent database describing the network's topology.
• C、Routers choose the best path for a destination based on the interface on which they received the link stateadvertisement with the lowest cost.
• D、All routers in a given area or level forward link state advertisements between interfaces in the same area or level, adding their metric to the link state advertisement's cost information when they forward it.

第16题：

ADSL属于下列哪一种网路拓扑（Topology）结构？（）

• A、汇流排（Bus）网路拓扑（Topology）
• B、环状（Ring）网路拓扑（Topology）
• C、星状（Star）网路拓扑（Topology）
• D、三角状（Triangular）网路拓扑（Topology）

第17题：

Which one of the following answer choices below is true regarding the OSPF topology database?（）

• A、All entries in the topology database will be included on each router.
• B、All routers in the same OSPF area will have one topology database.
• C、The Dijkstra algorithm is used in the creation of the topology database.
• D、LSA packets are used to update and maintain the topology database.

第18题：

An etwork administrator has enabled OSPF across an NBMA network and has issued the command ip ospf network nonbroadcast. Given those facts, which two statements are true?（）

• A、Interfaces will automatically detect and build adjacencies with neighbor routers
• B、DR and BDR elections will not occur
• C、DR and BDR elections will occur
• D、The neighbor command is required to build adjacencies
• E、All routers must be configured in a fully meshed topology with all other routers

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