Chapter 6 Flashcards
1
Q
What signal propagation phenomena causes a wireless signal to split into secondary waves when it encounters an obstruction? A) reflection B) bounce C) diffraction D) scattering
A
C) diffraction
2
Q
What signal propagation phenomena causes the diffusion, or the reflection in multiple different directions, of a signal? A) reflection B) bounce C) diffraction D) scattering
A
D) scattering
3
Q
Which command below can be used on Linux to modify the SSID of the access point you choose to associate with? A) ifconfig B) iwconfig C) wlanconfig D) ipconfig
A
B) iwconfig
4
Q
How many address fields exist in an 802.11 frame? A) 2 B) 3 C) 4 D) 6
A
C) 4
5
Q
Select the band that is not one of the four frequency bands used in the 5 GHz range for wireless LANs: A) 5.1 GHz B) 5.3 GHz C) 5.4 GHz D) 5.9 GHz
A
D) 5.9 GHz
6
Q
Which of the following is not a valid wireless network topology? A) bus B) infrastructure C) mesh D) ad hoc
A
A) bus
7
Q
Ideally, stations must remain within what range of an access point in order to maintain optimal transmission speeds? A) 100 feet B) 200 feet C) 300 feet D) 600 feet
A
C) 300 feet
8
Q
At what layer of the OSI model do the 802.11 standards vary? A) Physical layer B) Network layer C) Data link layer D) Transport layer
A
A) Physical layer
9
Q
Which 802.11 standard was the first to utilize the 5 GHz band? A) 802.11b B) 802.11a C) 802.11g D) 802.11n
A
B) 802.11a
10
Q
Which 802.11 technology is the first Wi-Fi standard to approach gigabit Ethernet capabilities, and operates on the 5 GHz band? A) 802.11a B) 802.11b C) 802.11n D) 802.11ac
A
D) 802.11ac
11
Q
What is the maximum theoretical throughput of 802.11n? A) 54 Mbps B) 65 Mbps C) 600 Mbps D) 1.3 Gbps
A
C) 600 Mbps
12
Q
What is the name for the special signal that contains information that a wireless node requires in order to associate itself with an access point? A) broadcast frame B) hello packet C) beacon frame D) announcement message
A
C) beacon frame
13
Q
In IEEE terminology, a group of stations that share an access point are said to be part of what option below? A) extended service set B) basic service set C) modified service set D) generic service set
A
B) basic service set
14
Q
What 802.11 frame type is involved in association and reassociation, including probe and beacon frames? A) management frames B) control frames C) data frames D) extended frames
A
A) management frames
15
Q
Which 802.11 frame type is related to medium access and data delivery, and includes ACK and RTS/CTS frames? A) management frames B) control frames C) data frames D) extended frames
A
B) control frames
