A. IP address is classful.B. IP address is a subnet bro……

单项选择题Aworkstationisaddedtoanewlycreatedsubnetusing192.168.100.0 24.ADHCPserveris availableonsubnet192.168.101.0 24.TheuserisunabletoleaseanaddressfromtheDHCPserver. WhichofthefollowingwouldBESTresolvetheproblem？（）

A. Assign the workstation a static IP address.
B. Add a second DHCP server to the 192.168.101.0/24 subnet.
C. Add a DHCP relay to the 192.168.100.0/24 subnet.
D. Add a DHCP server to the 192.168.100.0/24 subnet.

单项选择题Whichofthefollowingisaconnectionlesstransportlayerprotocol？（）

A. TCP
B. HTTP
C. SMTP
D. UDP

单项选择题Whichofthefollowingisaconnectionorientedtransportlayerprotocol？（）

A. TCP
B. UDP
C. TFTP
D. SNMP

单项选择题Aserverwillnotpoweron.WhichofthefollowingdevicesshouldtheadministratoruseFIRSTto determinetheproblem？（）

A. Loop back plugs
B. Power supply tester
C. System logs
D. TDR

单项选择题An administrator is upgrading memory on the server. Once the server in turned back on， the administrator notices that the memory has not changed. The system board website says the board should accept the new amount of memory.  Which of the following should the administrator do FIRST？（）

A. Replace memory chips with known good memory chips.
B. Reseat the memory chips.
C. Update the BIOS.
D. Upgrade the server OS.