H12-311_V3.0-ENU V1

How many subcarriers can be used to transmit data in 802.11a in 20M mode?A . 48 B.52 C.54 D.56View AnswerAnswer: A

Which technology is used to implement the 802.11a protocol?A . FHSS B. DSSS C. OFDM D. MIMOView AnswerAnswer: C

Which of the following is a wireless local area network standard originally formulated by IEEE?A . IEEE 802.11 B. IEEE 802.10 C. IEEE 802.12 D. IEEE 802.16View AnswerAnswer: A

What is the VLAN which used to establish a CAPWAP tunnel VLAN for AP and AC?A . Management VLAN B. Service VLAN C. User VLAN D. Authentication VLANView AnswerAnswer: A

What is a network composed of a wireless AP and associated wireless clients called?A . IBSS B. BSS C. ESS D. NSSView AnswerAnswer: B

In the 802.11 frame, which address bit of the Address bit represents the address of the frame receiving end?A . Address 1 B. Address 2 C. Address 3 D. Address 4View AnswerAnswer: A

If the AP is working in the infrastructure mode, then the working state of the AP at this time is full-duplex mode.A . True B. FalseView AnswerAnswer: B

The point-to-point wireless bridge can be used to connect two networks located in different places. In the wireless backbone connection, Root AP and Leaf AP should be set to different channels.A . True B. FalseView AnswerAnswer: B

In the 802.11 frame, when the wireless workstation sends a signal to the wireless AP, what are the values of To DS and From DS?A . 0, 0 B. 0, 1 C. 1, 0 D.1,1View AnswerAnswer: C

What is the command to check online users on AC?A . display users all B. display user-interface console 0 C. display local-user D. display access-userView AnswerAnswer: D