( ) 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
( ) 152.How much speed will a full-duplex 10 Bass T theoretically has?
A.10 Mbps
B.20Mbps
C.185Mbps
D.100Mbps
E.200Mbps
B.20Mbps
C.185Mbps
D.100Mbps
E.200Mbps
( ) 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
B.10 Base 5
C.10 Base T
D.100 Base FX
E.100 Base T4
( ) 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
B.100 Base T
C.100 Base T4
D.100 Base FX
( ) 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
( ) 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
( ) 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
( ) 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
( ) 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
( ) 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
( ) 161.How many bits of a MAC address?
A.48 bits
B.32 bits
C.16 bits
D.8 bits
E.64 bits
( ) 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
( ) 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
( ) 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
( ) 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
( ) 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
( ) 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
( ) 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
( ) 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
( ) 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
( ) 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
( ) 172.Which one of following protocol does bridges use to prevent network loops?
A.loop
B.STP
C.ICMP
D.IP
E.TCP+UDP
( ) 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
( ) 174.Which one of following switching method is more efficient?
A.IP
B.TCP
C.UDP
D.cut-through
E.store-and-forward
( ) 175.Which one of following switching method will provide error checking?
A.IP
B.TCP
C.UDP
D.cut-through
E.store-and-forward
( ) 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
( ) 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
( ) 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
( ) 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
( ) 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
( ) 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
( ) 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
( ) 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
B.store-and-forward
C.fragment free
D.fragment-forwarding
E.frame-filtering
( ) 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
( ) 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
( ) 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
( ) 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
( ) 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
G.stopping
( ) 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
( ) 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
( ) 191.Which configuration mode will you use to enter the name of the router?
A.Local
B.Global
C.line
D.Rommonitor
E.User
( ) 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
( ) 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
( ) 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
( ) 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
( ) 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
( ) 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
( ) 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
( ) 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
E.Ctrl + shift
( ) 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
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