I need help with these questions. Thank you ? The strength of the electromagneti
ID: 3857790 • Letter: I
Question
I need help with these questions. Thank you
?
The strength of the electromagnetic waves being radiated from an antenna is referred to as gain, which involves a measurement of both direction and efficiency of a transmission. Gain is commonly measured using the dBi unit of measure. A) True B) False Which of the following wireless standards operate at a Maximum Bandwidth of less than 20Mbps? A) 802.11g B) 802.11b C) 802.11a D) 802.11 The image below represents what type of warchalking symbol? A) WEP node B) Open node C) Paid node D) Closed node To protect WLAN traffic from eavesdroppers, a variety of security standards and practices have been developed, including all of the following except: A) Preshared key B) Enabling SSID broadcast C) MAC address filtering D) IEEE 802.1X Which of the following is NOT a WLAN security standard? A) WPA B) WEP C) WAP D) WPA2 An omnidirectional antenna radiates power at relatively unequal power levels in all directions (somewhat similar to the theoretical isotropic antenna). A) True B) False The _____ command can be used to see what a Layer 2 MAC address corresponds to a known Layer 3IP address. A) MAC B) ARP C) pathping D) netstatExplanation / Answer
13) True because the strength of the electromagnetic waves being radiated from an antenna. Involves a measurement of both direction and efficiency of a transmission.Units of measure for gain is dBi
14) Option D 802.11 There were actually two variations on the initial 802.11 wireless standard. Both offered 1 or 2Mbps transmission speeds and the same RF of 2.4GHz
15) Option D closed node
16) Security Standards
17) Option C WAP
18) True, because An omnidirectional antenna radiates power at relatively equal power levels in all directions (somewhat similar to the theoretical isotropic antenna).
19) Option A MAC
MAC: The MAC address is a unique value associated with a network adapter. MAC addresses are also known as hardware addresses or physical addresses. They uniquely identify an adapter on a LAN.