Wireless Midterm 1
A wireless laptop with IP address 10.1.11.45 is connected to your Employee SSID in the lab. A ping is sent from the laptop to the controller (10.1.10.100). Which devices does the frame traverse, in order, as it travels from the laptop to the Controller?
Laptop > AP > AP Switch > Main Switch > Controller
Laptop > AP > AP Switch > Controller
Laptop > AP > AP Switch > Main Switch > Controller > Main Switch > Controller
Laptop > Controller
Laptop > AP > Controller
At Algonquin, an Aruba AP will support ACGuest and ACsecure on the same channel.
True
False
Which of the following Aruba Virtual AP forwarding modes have we used in the lab with CAPs (Campus APs)?
Bridge
Tunnel
Split-Tunnel
Decrypt-Tunnel
None of the above
How many APs are there in an Extended Service Set
1
2
2 or more
None
37.5
What if we connect a new AP in T115. How does it know which of the controllers it should connect to?
The controller address is determined using DNS
The controller address is provided via DHCP
It will not know which controller to connect to until it is provisioned
The appropriate controller will find the AP
None of the above
An Independent basic service set requires a minimum of how many access points
0
1
2
More than 1
None of the above
In the lab (T115), which VLAN does your AP use to communicate with its controller?
X0
X1
It doesn't use a VLAN, it uses a GRE tunnel on VLAN 1
VLAN 999
VLAN 1
Our network has 3 dual band Aruba APs. Each AP is providing an Employee and a Guest SSID on both radios. How many SSIDs are there?
1
2
3
6
12
Which frequencies will experience greater attenuation?
Higher frequencies
All frequencies will experience the same attenuation
Attenuation is not related to frequency
Lower frequencies
None of the above
A Basic Service Set has how many access points?
None
1
2
1 or more
More than 1
Which 802.11 protocols operate in the 5 GHz frequency band?
802.11b and 802.11g
802.11n and 802.11ac
802.11a, and 802.11n, and 802.11ac
802.11a and 802.11ac
802.11a and 802.11n
A student in room T115 connects one of the desktop computers to port 10 on the AP switch. If the student tired to access the GUI on controller 5 from this PC, would s/he be successful?
Yes
No
None of the above
An office network includes 3 dual radio APs. An Employee SSID is advertised on both radios of all APs. A visitor SSID is advertised on the 2.4 GHz radio of all APs. How many BSSIDs are there?
3
6
9
12
None of the above
Which wave has the highest frequency?
1
2
3
All of the waves have the same frequency
Not enough information is provided
How many non-overlapping channels are there for the 802.11b standard
3
4
6
11
15
Consider the following session policy:
1 netdestination dns-srv
2 host 10.252.1.20
3 ip access-list session NewPolicy
4 user network 10.254.0.0 255.255.0.0 any permit
5 user host 254.1.20 any deny
6 user alias dns-srv any permit
7 implicit any any any deny
Will the policy permit or deny the following packet and which statement will perform the action?
Source IP = user; Destination IP = 10.254.1.20
Permit by statement 4
Deny by statement 5
Permit by statement 6
Implicit Deny
In a WLAN, what is the purpose of the common DS?
To eliminate the need for connectivity to a wired network
To allow communication between multiple BSSs thereby allowing mobile devices to roam without loss of connectivity
To reduce the number of APs needed to provide reliable connectivity while roaming
To eliminate the need for station addressing when in roaming mode
The IEEE 802.11 working group provides certification paths for Wi-Fi equipment.
True
False
Which organization is responsible for interoperability testing of 802.11 equipment?
IEEE
IETF
WiFi Alliance
ISO
None of the above
How many SSID profiles may be contained in a single Virtual AP Profile?
16 or less
2
None
1
1 or mroe
Which 802.11 frame is used by all stations to verify delivery of a unicast frame?
802.11 frame delivery is not verified
Unicast frames are not verified
TCP/IP does this
ACK
None of the above
In the lab (T115), wireless clients receive their IP configuration via DHCP. Where is the DHCP server located?
In the AP
In the Windows Server (same as Radius server)
In the controller
In the layer 3 switch
None of the above
The output of the Aruba show user command lists the phy type as a-HT. What does this mean?
The user's connection is 802.11g with HT enabled
The user's connection is 802.11n on the 2.4 GHz band
The user's connection is 802.11n on the 5 GHz band
The user's connection is 802.11ac on the 5 GHz band
The user's connection is 802.11g
In the 802.11 CSMA/CA method of media access, how does a station know that a collision has occurred?
The sending station does not receive a MAC-level acknowldgement
The receiving station send a MAC-level acknowledgment
The auto-transmit data rate will fall back when data delivery is unsuccessful
The media is monitored prior to the transmission so that collisions do not occur
A station will not transmit until its NAV timer reaches zero - no collisions will occur
When does a wireless station update its NAV Timer?
When it sees a frame with a higher value
After receiving an ACK
When it reaches zero
Before it transmits a frame
None of the above
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