Ccna certification Practice Tests

D.  The DHCP server is configured for APIPA.

 161.  Which is the contention method 802.11 wireless uses?

A. CSMA/CA

B. CSMA/CD

C. DSSS

D. OFDM

 162.  In the 2.4 GHz spectrum for 802.11, which channels are non-overlapping?

A.  Channels 1, 3, and 11

B.  Channels 1, 3, and 6

C.  Channels 1, 6, and 11

D.  Channels 1 through 6

 163.  You are designing a wireless network for an office building. The building has a large 

number of tenants that utilize wireless already. Which protocol will least likely overlap 

with wireless channels the tenants are currently using?

A. 802.11b

B. 802.11g

C. 802.11n

D. 802.11ac

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Chapter 1 

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  Network Fundamentals (Domain 1)

 164.  Which wireless encryption protocol uses a 24-bit initialization vector?