Question $10(5$ points$)$

Where is the link layer implemented?

Question $10$ options:

Question $11(5$ points$)$

Question $11$ options:

the IEEE $802\mathrm{.}11$ wireless LAN, also known as WiFi.

$802\mathrm{.}11$ b$/$n devices operate in $\_\_\_\_$ GHz frequency ranges

where $802\mathrm{.}11$ ac devices operate in $\_\_\_\_$ GHz frequency ranges

Question $12(5$ points$)$

Some $802\mathrm{.}11$ b$/$n$/$g devices may compete for frequency spectrum with appliances such as microwave ovens.

Question $12$ options:

True

False

Question $13(5$ points$)$

the two resolvers:

Question $13$ options:

resolves host names for hosts anywhere in the Internet.

resolves IP addresses only for hosts and router interfaces on the same subnet.

$1.$

DNS

$2.$

ARP

Question $14(5$ points$)$

Question $14$ options:

What is the maximum number of VLANs that can be configured on a switch supporting the $802\mathrm{.}1$Q protocol?

Question $15(5$ points$)$

An ad hoc LAN requires a third party like an AP to communicate with each other.

Question $15$ options:

True

False