In order to increase reliability， minimize collisions and establish a large number of systems on an Ethernet segment， which of the following options should be selected for the Ethernet network？（）

单项选择题Whichofthefollowingclassnetworkscontains65，534hosts？（）

A.Class A
B.Class B
C.Class C
D.Class D

单项选择题Givenanewimplementation，whichofthefollowingproceduresshouldbeusedtodetermineadefaultgateway’sIPaddress？（）

A.The address will always end in 255.
B.The address will always be the first interface’s IP address
C.The address will always be the network with a 1 as the final octet.
D.It is important to consult with the network administrator prior to making assumptions regarding the default gateway’s IP addres

单项选择题AclassBnetwork129.35has4subnetsandanetmaskof255.255.252.0（11111111.11111111.11111100.00000000）.TowhichofthefollowingsubnetswilltheclassBnetworkdeliverapacketofaddress129.35.14.04（10000001.00100011.00001110.00000100）？（）

A.129.35.12.0
B.129.35.16.0
C.129.35.52.0
D.129.35.128.0

单项选择题AnetworkadministratorprovidesanIPaddressof128.135.0.142andasubnetmaskof255.0.0.0.Onceapingisattempted，itfails.Whichofthefollowingoptionsisthemostprobablecauseofthefailedping？（）

A.0 is not valid in an IP address
B.128 is a reserved network
C.The subnet mask should be 255.255.0.0. since it is a class B
D.A network problem has occurred since IP and subnet are valid

单项选择题WhichofthefollowingoptionsisrepresentativeofaClassBaddress？（）

A.128.55.103.2
B.195.201.22.11
C.227.100.100.1
D.120.102.27.120