單項選擇題

Which of the following ports should be allowed through a firewall for Telnet to function？（）

A.23
B.25
C.50
D.110

你可能感興趣的試題

單項選擇題

Which of the following expansion cards would be necessary to increase fault tolerance in a VoIP server?（）

A. Second Modem
B. Second CPU
C. Second HBA
D. Second PBX card

單項選擇題

Which of the following ensures the MOST secure access to a server room？（）

A. ID card readers
B. Server rack doors
C. Biometric devices
D. Locked doors