A. PD

B. PI

C. PSU

D. PSE

A. Active and standby AC The network service configuration on the Internet must be consistent

B. exist AP With active and standby AC In the process of establishing active and standby links, the link established first must be the active link

C. Dual-link backup technology improves network reliability at important network nodes and ensures business stability

D. Prepare AC Always be in the power-on state

A. False

B. True

A. 5.4 GHz

B. 5 GHz

C. 2.4 GHz

D. 2 GHz

A. display version, you can see that the VRP version number of the current device is 5.70

B. At present, the device has used 512M bytes of system memory

C. At present, the equipment has been running continuously for 1 day, 23 hours, 33 minutes

D. The total size of the flash memory of the device is 128M bytes

A. AC-WLAN-view] security-profile name security-1 id 1
[AC-WLAN-sec-prof-security-1] open authentication-method open-system
[AC-WLAN-sec-prof-security-1] security-policy open
[AC-WLAN-sec-prof-security-1] quit

B. AC-WLAN-view] security-profile name security-1 id 1
[AC-WLAN-sec-prof-security-1] wpa2 authentication-method open-system
[AC-WLAN-sec-prof-security-1] security-policy wpa2
[AC-WLAN-sec-prof-security-1] quit

C. AC-WLAN-view] security-profile name security-1 id 1
[AC-WLAN-sec-prof-security-1] wep authentication-method open-system
[AC-WLAN-sec-prof-security-1] security-policy wep
[AC-WLAN-sec-prof-security-1] quit

D. AC-WLAN-view] security-profile name security-1 id 1
[AC-WLAN-sec-prof-security-1] wpa authentication-method open-system
[AC-WLAN-sec-prof-security-1] security-policy wpa
[AC-WLAN-sec-prof-security-1] quit

A. America

B. Europe

C. China

D. Japan

A. BAS

B. FTP Server download

C. AC download

D. AP Bring your own