Which of the following tools would be the BEST to check connectivity of a CAT5 cable？（）

单项选择题WhichofthefollowingInternetconnectiontypeshasthehighestamountoflatency？（）

A.Satellite
B.DSL
C.Cable
D.Fiber

单项选择题WhichofthefollowingcabletypesistheLEASTaffectedbyEMI？（）

A.STP
B.Coax
C.UTP
D.Fiber

单项选择题WhichofthefollowingdevicessetstheframingtypeonaT1circuit？（）

A.Transceiver
B.Gateway Modem
C.Router
D.CSU/DSU

单项选择题AcompanywantsallIMchatviatheinternettostop.AtechnicianblocksIRCtrafficwithatrafficshapingdevice，yetIMchatremainsuseable.Whichofthefollowingshouldatechniciandonext？（）

A.Block both IRC and ICMP
B.Utilize SNMP to identify IM users
C.Contact the IM carrier to request the IM account be disabled
D.Change the shaping setting to allow minimal traffic to reduce port hopping

单项选择题A100paircableis typicallyusedtoconnect：（）

A.telephony distribution.
B.businesses with more than 75 computers.
C.security cameras.
D.computer labs with more than 20 computers.