CCNA151~200題解析

( ) 151.What are features of the cut-through switching technology?(choose 2)

               A.Copy an entire frame to its buffer.

               B.Copy a frames destination address to its buffer

               C.Has more latency than store-and-forward switching

               D.Has less latency than store-and-forward switching

               E.no latency

151.下列哪兩個選項是直通式交換式技術的特點?

               A.Copy an entire frame to its buffer.
               B.Copy a frames destination address to its buffer
               C.Has more latency than store-and-forward switching
               D.Has less latency than store-and-forward switching
               E.no latency

ANS(B、D)

( ) 152.How much speed will a full-duplex 10 Bass T theoretically has?

               A.10 Mbps
               B.20Mbps
               C.185Mbps
               D.100Mbps
               E.200Mbps

152.全雙工的10 Bass T 理論上有多少速度?

               A.10 Mbps
               B.20Mbps
               C.185Mbps
               D.100Mbps
               E.200Mbps

ANS(B)

( ) 153.Which one of followings has a maximum segment lenght of 500 meters?

               A.10 Base 2
               B.10 Base 5
               C.10 Base T
               D.100 Base FX
               E.100 Base T4

153.哪一個選項的最大區段長500米?

               A.10 Base 2
               B.10 Base 5
               C.10 Base T
               D.100 Base FX
               E.100 Base T4

ANS(B)

( ) 154.Which one of followings has a maximum segment lenght of 400 meters?

               A.10 Base T
               B.100 Base T
               C.100 Base T4
               D.100 Base FX

154.哪一個選項的最大區段長400米?

               A.10 Base T
               B.100 Base T
               C.100 Base T4
               D.100 Base FX

ANS(D)

( ) 155.Which are features of the store-and-forward switching technology?(choose 2)

               A.Copy an entire frame to its buffer.

               B.Copy a frames destination address to its buffer

               C.Has more latency than cut-through switching

               D.Has less latency than cut-through switching

               E.no latency at all

155.下列哪兩個選項是儲存後轉送交換式技術的特點?

               A.Copy an entire frame to its buffer.
               B.Copy a frames destination address to its buffer
               C.Has more latency than cut-through switching
               D.Has less latency than cut-through switching
               E.no latency at all

ANS(A、C)

( ) 156.What's the advantage of a virtual local area network(VLAN)?

               A.Use physical location grouping function

               B.Use logical grouping of physical location

               C.Use virtual application to implement LAN

               D.Use physical grouping of logical location

156.下列哪個選項是使用VLAN的好處?

               A.Use physical location grouping function
               B.Use logical grouping of physical location
               C.Use virtual application to implement LAN
               D.Use physical grouping of logical location

ANS(B)

( ) 157.You use a bridge to segment a LAN, your station sends out packs with source and destination address on the same segment, what will the bridge do?

               A.Bridge Broadcast the packets

               B.Bridge drop the packets

               C.Bridge holds the packets

               D.Bridge sends the packets back to source

157.你在不同區段的區域網路使用橋接器，當相同區段的來源位址朝目的位址傳送封包時，橋接器會怎麼做?

               A.Bridge Broadcast the packets
               B.Bridge drop the packets
               C.Bridge holds the packets
               D.Bridge sends the packets back to source

ANS(B)

( ) 158.What are the advantages of Fast Ethernet(choose 3)

               A.Easily upgrade from 10 Base T

               B.lower performance than 10 Base T

               C.Higher performance than 10 Base T

               D.More secure than 10 Base T

               E.Utilize the cable and other hardware

158.下列哪三個是高速乙太網路的優點?

               A.Easily upgrade from 10 Base T
               B.lower performance than 10 Base T
               C.Higher performance than 10 Base T
               D.More secure than 10 Base T
               E.Utilize the cable and other hardware

ANS(A、C、E)

( ) 159.Which one of following will a bridge use to determine the packets should be forward or drop?

               A.IP address

               B.port address

               C.Source MAC address

               D.Destination MAC address

               E.Network address

159.橋接器是靠下列哪個選項來決定傳送或是丟棄?

               A.IP address
               B.port address
               C.Source MAC address
               D.Destination MAC address
               E.Network address

ANS(D)

( ) 160.What are features of the store-and-forward switching method?(choose 3)

               A.Compute the CRC

               B.Discards the giant packs

               C.forward the giant packs

               D.Discard the Erroneous frames

               E.Forward the Erroneous frames

160.下列哪三個是使用儲存後轉送交換式技術的特點?

               A.Compute the CRC
               B.Discards the giant packs
               C.forward the giant packs
               D.Discard the Erroneous frames
               E.Forward the Erroneous frames

ANS(A、B、D)

( ) 161.How many bits of a MAC address?

               A.48 bits

               B.32 bits

               C.16 bits

               D.8 bits

               E.64 bits

161.請問MAC位只有多少bits?

               A.48 bits
               B.32 bits
               C.16 bits
               D.8 bits
               E.64 bits

ANS(A)

( ) 162.What are the benefits of LAN Segmentation?(choose 2)

               A.Reduce cost

               B.Reduce the number of user in each collision domain

               C.Increase bandwidth

               D.Increase the number of use in each collision domain

               E.Increase delay

162.請問切割區域網路的好處是什麼?(選擇2個答案)

               A.Reduce cost
               B.Reduce the number of user in each collision domain
               C.Increase bandwidth
               D.Increase the number of use in each collision domain
               E.Increase delay

ANS(B、C)

( ) 163.Which one of following is a switching method with least latency?

               A.IP routing

               B.port redirected

               C.cut-through

               D.store-and-forward

163.下列哪一個交換方式是最少的延遲?

               A.IP routing
               B.port redirected
               C.cut-through
               D.store-and-forward

ANS(C)

( ) 164.How does a switched network determine a bridge's root port?

               A.It has the least path cost to root

               B.It has the greatest path cost to root

               C.It has highest Bridge ID

               D.It has the lowest Bridge ID

               E.none

164.請問橋接器如何在交換網路選擇root port?

               A.It has the least path cost to root
               B.It has the greatest path cost to root
               C.It has highest Bridge ID
               D.It has the lowest Bridge ID
               E.none

ANS(A)

( ) 165.How does a switched network determine a Root bridge?

               A.It has the least path cost to root

               B.It has the greatest path cost to root

               C.It has highest Bridge ID

               D.It has the lowest Bridge ID

               E.none

165.請問如何在交換網路選擇根橋接器?

               A.It has the least path cost to root
               B.It has the greatest path cost to root
               C.It has the lowest Bridge ID
               D.It has highest Bridge ID
               E.All Bridge are root bridge

ANS(C)

( ) 166.Which two of following descriptions are true about LAN switches?

               A.Reduce the contention for media access

               B.It has many high speed ports

               C.Reduce the bandwidth for media access

               D.Use IP address to make the switching decision

               E.Use routing table to make the switching decision

166.有關區域網路的交換器敘述哪兩個選項是正確的?

               A.Reduce the contention for media access
               B.It has many high speed ports
               C.Reduce the bandwidth for media access
               D.Use IP address to make the switching decision
               E.Use routing table to make the switching decision

ANS(A、B)

( ) 167.Which one of following states devices transmit data one way at a time?

               A.Half-Duplex

               B.Full-Duplex

               C.One way Duplex

               D.whole Duplex

               E.One Duplex

167.下列哪一樣是在陳述設備同一個時間點只能傳送一方?

               A.Half-Duplex
               B.Full-Duplex
               C.One way Duplex
               D.whole Duplex
               E.One Duplex

ANS(A)

( ) 168.A LAN switch 10 Base T has 10 ports; How much bandwidth will a port has?

               A.100 Mbps

               B.10 Mbps

               C.1 Mbps

               D.2 Mbps

168.在區域網路有一台10 Base T  10 ports的交換器，請問一個port的頻寬有多少?

               A.100 Mbps
               B.10 Mbps
               C.1 Mbps
               D.2 Mbps

ANS(B)

( ) 169.What are advantages of the Spanning Tree Protocol(STP)?(choose 2)

               A.Reactived the blocking bridge port when connecting port fail

               B.Eliminated the loops

               C.Add loops to increase bandwidth

               D.Cocked the blocking bridge port when connecting port fail

               E.Add loops to eliminate band width

169.哪兩個選項是STP的優點?

               A.Reactived the blocking bridge port when connecting port fail
               B.Eliminated the loops
               C.Add loops to increase bandwidth
               D.Cocked the blocking bridge port when connecting port fail
               E.Add loops to eliminate band width

ANS(A、B)

( ) 170.How much efficiency will half-duplex Ethernet utilize on real network enviroment ?

               A.20~30 percent

               B.30~40 percent

               C.40~50 percent

               D.50~60 percent

               E.60~70 percent

170.請問在乙太網路半雙工在實體網路環境有多少效率?

               A.20~30 percent
               B.30~40 percent
               C.40~50 percent
               D.50~60 percent
               E.60~70 percent

ANS(D)

( ) 171.A bridge receive packets without destination address, what will the bridge do?

               A.Drop Packets

               B.Forward Packets to all ports

               C.Forward Packets to all ports except the receiving port

               D.Do nothing

               E.Forward Packets to the receiving port

171.橋接器在收到未帶有目的位址的封包後，橋接器將會?

               A.Drop Packets

               B.Forward Packets to all ports

               C.Forward Packets to all ports except the receiving port

               D.Do nothing

               E.Forward Packets to the receiving port

ANS(C)

( ) 172.Which one of following protocol does bridges use to prevent network loops?

               A.loop

               B.STP

               C.ICMP

               D.IP

               E.TCP+UDP

172.下列哪一個協定是用來預防橋接器使用時的網路迴圈?

               A.loop

               B.STP

               C.ICMP

               D.IP

               E.TCP+UDP

ANS(B)

( ) 173.What is the important function of a MAC address on the network?

               A.Provide logical control

               B.Provide address control

               C.Identify logical address

               D.Uniquely identifies each device

               E.Identify the vendor of the device

173.請問MAC位址在網路中有哪樣重要的功能?

               A.Provide logical control

               B.Provide address control

               C.Identify logical address

               D.Uniquely identifies each device

               E.Identify the vendor of the device

ANS(D)

( ) 174.Which one of following switching method is more efficient?

               A.IP

               B.TCP

               C.UDP

               D.cut-through

               E.store-and-forward

174.請問哪一種交換方式是較高效率的?

               A.IP

               B.TCP

               C.UDP

               D.cut-through

               E.store-and-forward

ANS(D)

( ) 175.Which one of following switching method will provide error checking?

               A.IP

               B.TCP

               C.UDP

               D.cut-through

               E.store-and-forward

175.請問哪一種交換方式提供錯誤檢查?

               A.IP

               B.TCP

               C.UDP

               D.cut-through

               E.store-and-forward

ANS(E)

( ) 176.What is the feature of store-and-forward switches?

               A.They check the destination address only

               B.They increase delay

               C.They forward part of frame

               D.They have the same function as cut-through

176.請問哪一個是store-and-forward交換方式的功能?

               A.They check the destination address only

               B.They increase delay

               C.They forward part of frame

               D.They have the same function as cut-through

ANS(B)

( ) 177.What are the benefits of switch over Router?(choose 2)

               A.more management control

               B.Higher throughput

               C.Lower overhead

               D.Greater functionality

               E.More paths

177.哪兩樣是交換器優於路由器的功能?

               A.more management control

               B.Higher throughput

               C.Lower overhead

               D.Greater functionality

               E.More paths

ANS(B、C)

( ) 178.Which one of following can be used to reduce the size of a broadcast domain?

               A.cut-though

               B.store-and-forward

               C.Fragment Free

               D.VLAN

               E.Hub

178.哪以個可以減少廣播網域的大小?

               A.cut-though

               B.store-and-forward

               C.Fragment Free

               D.VLAN

               E.Hub

ANS(D)

( ) 179.Which one of following describes the switch best?

               A.One broadcast domain and collision domain

               B.Single broadcast domain and separate collision domain

               C.Multiple broadcast domain and Single subnet

               D.Separate broadcast domain and Separate collision domain

               E.None broadcast domain and collision domain

179.哪一種交換器的敘述較好?

               A.One broadcast domain and collision domain

               B.Single broadcast domain and separate collision domain

               C.Multiple broadcast domain and Single subnet

               D.Separate broadcast domain and Separate collision domain

               E.None broadcast domain and collision domain

ANS(B)

( ) 180.Which two of following do switches use to prevent network loops?

               A.IEEE 802.1d

               B.IEEE 802.1Q

               C.Spanning Tree Protocol

               D.Lock loop Protocol

               E.IEEE 802.3

               F.IEEE 802.IP

180.哪兩個選項是用來預防交換器上的網路迴圈?

               A.IEEE 802.1d

               B.IEEE 802.1Q

               C.Spanning Tree Protocol

               D.Lock loop Protocol

               E.IEEE 802.3

               F.IEEE 802.IP

ANS(A、C)

( ) 181.Which one of following switching method is the default switching mode of latest LAN switch?

               A.cut-through

               B.store-and-forward

               C.cut-and-forward

               D.Fragment Free

               E.flow control

181.哪一種交換方式是在最新區域網路的交換器上所預設的?

               A.cut-through
               B.store-and-forward
               C.cut-and-forward
               D.Fragment Free
               E.flow control

ANS(D)

( ) 182.What's the main function of a VLAN?

               A.Use Virtual address

               B.Use Network address

               C.Use port number

               D.Place user in logical grouping rather than physical location

               E.Place user in physical location rather than logical grouping

182.哪一個選項是在講VLAN的功用

               A.Use Virtual address
               B.Use Network address
               C.Use port number
               D.Place user in logical grouping rather than physical location
               E.Place user in physical location rather than logical grouping

ANS(D)

( ) 183.Which switching mode provides error-free transport,rather then maximizing speed?

               A.cut-through
               B.store-and-forward
               C.fragment free
               D.fragment-forwarding
               E.frame-filtering

183.哪一種交換模式是提供無錯誤傳輸，而不是最高速度?

               A.cut-through
               B.store-and-forward
               C.fragment free
               D.fragment-forwarding
               E.frame-filtering

ANS(B)

( ) 184.Which one of the following protocols operates at Layer 2 of the OSI model and is used to prevent a loop network?

               A.VTP

               B.RIP

               C.STP

               D.IGRP

               E.CDP

184.哪一個協定是操作在OSI模型的第二層用來預防網路迴圈

               A.VTP
               B.RIP
               C.STP
               D.IGRP
               E.CDP

ANS(C)

( ) 185.Which one of the following statements determines the spanning-tree path cost?

               A.It is based on transmission latency

               B.It is based on the hop count

               C.It is the sum of the costs based on bandwidth

               D.It is based on the load of network

185.哪一種敘述用來確定SPT的path cost?

               A.It is based on transmission latency
               B.It is based on the hop count
               C.It is the sum of the costs based on bandwidth
               D.It is based on the load of network

ANS(C)

( ) 186.What is function of the spanning-tree algorithm in a switched LAN?

               A.To manage VLANs across multiple switches

               B.To prevent switching loops in networks.

               C.To prevent routing loops in network

               D.To segment a network into multiple collision domains

               E.To segment a network into multiple broadcast domains

186.哪一個是STP演算法在交換區域網路上的功能?

               A.To manage VLANs across multiple switches
               B.To prevent switching loops in networks.
               C.To prevent routing loops in network
               D.To segment a network into multiple collision domains
               E.To segment a network into multiple broadcast domains

ANS(B)

( ) 187.Which two of the following items does STP count when it elects the root bridge

               A.The BPDU updated number

               B.The Bridge ID

               C.The access layer bridge setting

               D.The bridge priority

               E.The spanning update number

               F.The BPDU version number

187.哪兩個選項是STP選擇root bridge的依據?

               A.The BPDU updated number
               B.The Bridge ID
               C.The access layer bridge setting
               D.The bridge priority
               E.The spanning update number
               F.The BPDU version number

ANS(B、D)

( ) 188.Which three of the following are spanning tree port states?

               A.listening

               B.initializing

               C.learning

               D.spanning

               E.forwarding

               F.ending
               G.stopping

188.哪三個選項是spanning tree port 的狀態?

               A.listening
               B.initializing
               C.learning
               D.spanning
               E.forwarding
               F.ending
               G.stopping

ANS(A、C、E)

( ) 189.What is the characteristic of converged spanning-three network?

               A.All switch and bridge ports are in the Blocking state

               B.All switch and bridge ports are in the forwarding state

               C.All switch and bridge ports are in either the forwarding or blocking state

               D.All switch and bridge ports are in either learning blocking or blocking

               E.All switch and bridge ports are in the stand-by state

189.哪一個是STP在網路上收斂時的特點?

               A.All switch and bridge ports are in the Blocking state
               B.All switch and bridge ports are in the forwarding state
               C.All switch and bridge ports are in either the forwarding or blocking state
               D.All switch and bridge ports are in either learning blocking or blocking
               E.All switch and bridge ports are in the stand-by state

ANS(C)

( ) 190.Which command will you use a t the user mode to enter the privileged mode?

               A.enable

               B.disable

               C.enter

               D.setup

               E.show

190.使用哪個指令後將會從使用者模式進入到特權模式?

               A.enable
               B.disable
               C.enter
               D.setup
               E.show

ANS(A)

( ) 191.Which configuration mode will you use to enter the name of the router?

               A.Local

               B.Global

               C.line

               D.Rommonitor

               E.User

191.在哪一個組態模式下可以設定路由器的名稱?

               A.Local
               B.Global
               C.line
               D.Rommonitor
               E.User

ANS(B)

( ) 192.You are using IOS version prior to 10.3,which command can you copy the running configuration to a TFTP server?

               A.Taipei>copy running-config tftp

               B.Taipei#copy running-config tftp

               C.Taipei>write network

               D.Taipei#write network

               E.Taipei#copy tftp running-config 

192.你使用IOS 10.3之前的版本，哪一個指令可以讓你拷貝running configuration到TFTP伺服器?

               A.Taipei>copy running-config tftp
               B.Taipei#copy running-config tftp
               C.Taipei>write network
               D.Taipei#write network
               E.Taipei#copy tftp running-config 

ANS(D)

( ) 193.Which command will you use to display router memory statistics?

               A.show hosts

               B.show IP route

               C.show flash

               D.show memory

               E.show protocol

193.哪一個指令用來顯示路由器上記憶體的狀態?

               A.show hosts
               B.show IP route
               C.show flash
               D.show memory
               E.show protocol

ANS(D)

( ) 194.Which command will you use to execute configuration commands form the router terminal?

               A.Taipei#execute terminal

               B.Taipei#configure terminal

               C.Taipei#configure line

               D.Taipei#execute line

               E.Taipei#execute command

194.執行下列哪個指令後，可以在終端機上進行組態設定?

               A.Taipei#execute terminal
               B.Taipei#configure terminal
               C.Taipei#configure line
               D.Taipei#execute line
               E.Taipei#execute command

ANS(B)

( ) 195.For a specific line, which command will you use to set the IP address format to hexadecimal?

               A.Taipei>term IP netmask-format hexadecimal

               B.Taipei#term IP netmask-format hexadecimal

               C.Taipei[config-if]#term IP netmask-format hexadecimal

               D.Taipei[config-line]#term IP netmask-format hexadecimal

195.有一條特別的線路，請問要下什麼指令才能將IP格式轉為十六進制?

               A.Taipei>term IP netmask-format hexadecimal
               B.Taipei#term IP netmask-format hexadecimal
               C.Taipei[config-if]#term IP netmask-format hexadecimal
               D.Taipei[config-line]#term IP netmask-format hexadecimal

ANS(D)

( ) 196.You want to display the host name and address in Router, which one of the command will you use?

               A.Taipei#show IP hosts

               B.Taipei[config]#show IP hosts

               C.Taipei#show router host

               D.Taipei#show hosts

196.你想要顯示路由器上的主機名稱和位址，你將使用什麼命令?

               A.Taipei#show IP hosts
               B.Taipei[config]#show IP hosts
               C.Taipei#show router host
               D.Taipei#show hosts

ANS(D)

( ) 197.Which command will you use to display the IP routing table?

               A.show IP table

               B.show IP protocol

               C.show IP route

               D.show IP flash

               E.show flash

197.你想要顯示IP路由表，你將使用什麼命令?

               A.show IP table
               B.show IP protocol
               C.show IP route
               D.show IP flash
               E.show flash

ANS(C)

( ) 198.Which command will you use to set the password for the console terminal

               A.line vty 0

               B.line console 0

               C.line vty console

               D.line console vty

198.哪一個命令可以設置console terminal的密碼?

               A.line vty 0
               B.line console 0
               C.line vty console
               D.line console vty

ANS(B)

( ) 199.Which two command can you recall the previous command?

               A.Ctrl + P

               B.Ctrl + C

               C.Down arrow

               D.Up arrow
               E.Ctrl + shift 

199.哪兩個命令可以叫回之前的指令?

               A.Ctrl + P
               B.Ctrl + C
               C.Down arrow
               D.Up arrow
               E.Ctrl + shift 

ANS(A、D)

( ) 200.Which command will you use to copy configuration from a tftp Server to NVRAM?

               A.Taipei#copy tftp ROM

               B.Taipei#copy tftp flash

               C.Taipei#copy tftp running-config

               D.Taipei#copy tftp startup-config

200.哪個命令可以從tftp 到 NVRAM拷貝組態 ?

               A.Taipei#copy tftp ROM
               B.Taipei#copy tftp flash
               C.Taipei#copy tftp running-config
               D.Taipei#copy tftp startup-config

ANS(D)