单选题An administrator is having a hard time adding a new switch to the network. After verifying that allthe ports are configured correctly on each switch, which of the following should the administratorverily NEXT?（）A Straight-through cable is used to conne

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单选题

An administrator is having a hard time adding a new switch to the network. After verifying that allthe ports are configured correctly on each switch, which of the following should the administratorverily NEXT?（）

Straight-through cable is used to connect both switches

Loopback plug is connected

Crossover cable is used to connect both switches

Cable is a rollover cable

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相似问题和答案

第1题：

Youupdatedtheresourceplandirectivefortheresourceconsumergroup，DSS_USERS.TheresourceplandirectiveisassignedtotheDSS_PLANbyusingthefollowingstatement：

SQL>EXECDBMS_RESOURCE_MANAGER.UPDATE_PLAN_DIRECTIVE（PLAN=>’DSS_PLAN’，

GROUP_OR_SUBPLAN=>’DSS_USERS’，

NEW_CPU_P1=>80，

NEW_SWITCH_GROUP=>’CANCEL_SQL’，

NEW_SWITCH_ESTIMATE=>TRUE，

NEW_SWITCH_TIME=>600）；

Auserconnectstothedatabaseandstartsanoperation.WhatistheoutcomeifOracleestimatesthattheexecutiontimeforthisoperationwillexceed600seconds？（）

参考答案：B

第2题：

A. Straight-through cable is used to connect both switches

B. Loopback plug is connected

C. Crossover cable is used to connect both switches

D. Cable is a rollover cable

参考答案：C

第3题：

The statesman had a hard time__________ his supporters to see the point.

A． getting

B． got

C． having got

D． to get

正确答案：A
固定搭配have a hard time doing sth．做某事有困难。题干意思：这位政治家费了很大的劲才使他的支持者明白了这一点。

第4题：

A switch is configured with all ports assigned to vlan 2 with full duplex FastEthernet to segment existing departmental traffic. What is the effect of adding switch ports to a new VLAN on the switch?（）

A、More collision domains will be created.
B、IP address utilization will be more efficient.
C、More bandwidth will be required than was needed previously.
D、An additional broadcast domain will be created.

正确答案:D

第5题：

An administrator is unsuccessful in adding VLAN 50 to aswitch. While troubleshooting the problem, the administrator views the output of the show vtp status command, which is displayed in the graphic. What commands must be issued on this switch to add VLAN 50 to the database?（）

A. Switch(config-if)# switchport access vlan 50

B. Switch(vlan)# vtp server

C. Switch(config)# config-revision 20

D. Switch(config)# vlan 50 name Tech

E. Switch(vlan)# vlan 50

F. Switch(vlan)# switchport trunk vlan 50

参考答案：B, E

第6题：

The network administrator has just finished installing a new 10/100/1000 switch, but receives reports from the server administrator that servers connected to the new switch seem to be experiencing slow LAN connections. The network administrator checks the port connecting the new switch to the core switch and sees the following information:Which of the following is the MOST likely cause of the slow connections?（）

A. The servers have not had VLAN tagging enabled on their NICs.

B. Speed and duplex have not been set.

C. VLAN tagging was not set on the trunk.

D. The servers have been connected with CAT5 cable.

参考答案：B

第7题：

After connecting a PC to an available port on a switch, you find that the PC can not access any of the resources on the LAN. No other PC's connected to the switch appear to be having any issues. What is the most likely cause for this problem?

A．The router lacks a routing table entry for the new host

B．The host switch port is assigned to the incorrect VLAN

C．The host MAC address is incorrectly configured

D．A STP instance for the new host has not been initialized

E．The switch does not have the MAC address hard coded in the CAM table.

正确答案：B
解析：Explanation:VirtualLANsbreakupbroadcastdomainsinalayer-twoswitchedinternetwork.IfahostisinadifferentVLANthenthenetworkservicesitneedstouse,thepacketsmustgothrougharouter.Ifroutingdoesnottakeplace,thePCwillbeunabletocommunicatewithanyotherdevicesnotinthesameVLAN.AnswerBisthebestanswerforthisquestion.IncorrectAnswers:A.ThePCisunabletocommunicatewithotherLANusers.Norouterneedstoevenbeinstalledforthistowork.C,E.TheMACaddressofthePCdoesnotneedtobeenteredmanuallyintotheswitch.TheswitchwilldynamicallylearnoftheMACaddressofthePC.D.TheSTPalgorithmdoesnotneedtohaveanyendhostinformationaddedinorderforittowork.

第8题：

A Ezonexam switch is configured with all ports assigned to VLAN 2. In addition, all ports are configured as full-duplex FastEthernet. What is the effect of adding switch ports to a new VLAN on this switch?

A．The additions will create more collisions domains.

B．IP address utilization will be more efficient.

C．More bandwidth will be required than was needed previously.

D．An additional broadcast domain will be created.

E．The possibility that switching loops will occur will increase dramatically.

正确答案：D
解析：Explanation:
A VLAN is a group of hosts with a common set of requirements that communicate as if they were attached to the same wire, regardless of their physical location. A VLAN has the same attributes as a physical LAN, but it allows for end stations to be grouped together even if they are not located on the same LAN segment.

Networks that use the campus-wide or end-to-end VLANs logically segment a switched network based on the functions of an organization, project teams, or applications rather than on a physical or geographical basis. For example, all workstations and servers used by a particular workgroup can be connected to the same VLAN, regardless of their physical network connections or interaction with other workgroups.

Network reconfiguration can be done through software instead of physically relocating devices. Cisco recommends the use of local or geographic VLANs that segment the network based on IP subnets. Each wiring closet switch is on its own VLAN or subnet and traffic between each switch is routed by the router. The reasons for the Distribution Layer 3 switch and examples of a larger network using both the campus-wide and local VLAN models will be discussed later.

A VLAN can be thought of as a broadcast domain that exists within a defined set of switches. Ports on a switch can be grouped into VLANs in order to limit unicast, multicast, and broadcast traffic flooding. Flooded traffic originating from a particular VLAN is only flooded out ports belonging to that VLAN, including trunk ports, so a switch that connects to another switch will normally introduce an additional broadcast domain.

第9题：

The migratory birds use the same nests year after year,（）new material each time.

A.and will add
B.to add
C.which are added
D.adding

答案：D

解析：

该题考查句子结构。根据句意排除B选项（不定式做状语表原因，目的或结果），选项C应为which are added by故排除，选项A不符合时态一致原则。故答案为D（分词做use伴随状语或做主语the migratory birds补足语）。

第10题：

A network administrator needs to configure port security on a switch.which two statements are true？（）

A、The network administrator can apply port security to dynamic access ports
B、The network administrator can configure static secure or sticky secure mac addresses in the voice vlan.
C、The sticky learning feature allows the addition of dynamically learned addresses to the runningconfiguration.
D、The network administrator can apply port security to EtherChannels.
E、When dynamic mac address learning is enabled on an interface，the switch can learn new addresses，up to the maximum defined.

正确答案:C,E

An administrator is having a hard time adding a new switch t

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