306
Appendix
■
Answers to Practice Test Questions
179. A. A wireless personal area network (WPAN) is a small wireless network that usually
has a maximum distance of 30 feet. It is used for personal wireless connectivity to the
Internet via wireless. Wireless LANs (WLANs) are traditional wireless networks that we
use to connect to our home and work networks. Bluetooth is a common WPAN; it allows
for hands-free calling, monitoring of your pulse with wearable devices, and many other
services we have come to rely on. Wireless metro area networks (WMANs) are wireless
networks that span a fairly large geographic area like a city or suburban area. A wireless
wide area network (WWAN) is used for Internet connectivity and usually delivered over
cellular networks.
180. C. When installing a wireless access point onto a WLC, the port should be configured
as a trunk port. Configuring the port as a trunk port will allow management traffic and
data traffic to be tagged. This type of configuration will also future-proof the design for
additional networks in the future. Wireless access points are configured with access ports
when a controller is not being used and the AP is running in an autonomous mode. There
is no such thing as a wireless port configuration. Configuring the port as a LAG port is
not possible since APs normally only have one interface and LAGs require two or more for
aggregation.
181. B. Telnet is used for terminal emulation over a network to a device expecting terminal
emulation, such as a router, switch, or access point. Simple Network Management
Protocol (SNMP) is a management protocol for sending and receiving network events
and statistics. HyperText Transfer Protocol (HTTP) allows for web-based configuration
of devices. Trivial File Transfer Protocol (TFTP) is a network utility that allows for file
transfer, usually for the maintenance of devices such as uploading a new IOS.
182. A. The IP address or hostname entered in privileged exec mode will create a direct Telnet
request. Alternatively, you can specify the command
telnet 198.56.33.3. The command
connect 198.56.33.3 is incorrect. The command remote 198.56.33.3 is incorrect. The
command
vty 198.56.33.3 is incorrect.
183. D. TACACS+ uses TCP and port 49 for communications between the switch or router and
the AAA server. All of the other options are incorrect.
184. C. Secure Shell (SSH) is a secure console emulation method for the administration of
network devices. It allows for both the sender and receiver to create an encrypted session,
so data cannot be intercepted. Remote Authentication Dial-In User Service (RADIUS) is a
protocol that authenticates users, and it does not provide encryption. HyperText Transfer
Protocol (HTTP) is a method for relaying Hypertext Markup Language (HTML) from
a server to a requesting host; it does not provide encryption. SSH File Transfer Protocol
(SFTP) is a protocol that provides encryption for file transfers, but it does not provide
management access.
Chapter 2: Network Access (Domain 2)
Do'stlaringiz bilan baham: |