Computers and Technology, 20.09.2019 02:00 clairajogriggsk
Asecurity engineer is configuring a wireless network that must support mutual authentication of the wireless client and the authentication server before users provide credentials. the wireless network must also support authentication with usernames and passwords. which of the following authentication protocols must the security engineer select? a. eap-fastb. eap-tlsc. peapd. eap
Answers: 2
Computers and Technology, 22.06.2019 16:50
Consider a slotted aloha system, where the time slot equals the fixed duration of each packet. assume that there are 4 stations a,b,c,d sharing the medium. (a) stations a,b,c,d receive one packet each from higher layers at times 1.3, 1.5, 2.6,5.7 respectively. show which transmissions take place when, according to the slottedaloha protocol; describe all transmissions until all four packets have been successful.when needed, each station has access to the following sequence of random number, provided by a random number generator and drawn uniformly between 0 and 1: (1) station a draws numbers: 0.31, 0.27, 0.78, 0.9, 0.9, 0.11, 0. (2) station b draws numbers: 0.45, 0.28, 0.11, 0.83, 0.37, 0.22, 0. (3)station c draws numbers: 0.1, 0.2, 0.3, 0.4, 0. (4) station d draws numbers: 0.36, 0.77, 0.9, 0.1, 0.1, 0.1, 0.1, 0. (b) in slotted aloha, a station transmits in each time slot with a given probability. what probabilities would you assign to each of the four stations so as to: (i) maximize the efficiency of the protocol? (ii) maximize fairness among the four stations? (c) will the efficiency increase or decrease if we modify slotted aloha as follows: (i) get rid of slots and allow stations to transmit immediately? (ii) implement carrier sensing? (iii) implement collision detection? (iv) implement collision avoidance?
Answers: 3
Computers and Technology, 23.06.2019 00:30
Which one of the following is the most accurate definition of technology? a electronic tools that improve functionality b electronic tools that provide entertainment or practical value c any type of tool that serves a practical function d any type of tool that enhances communication
Answers: 1
Computers and Technology, 23.06.2019 22:20
Learning sign language is an example of a(n) learning sign language is an example of a(n)
Answers: 2
Computers and Technology, 24.06.2019 01:10
Create a program that will take in a single x and y coordinate as the origin. after the input is provided, the output should be all of the coordinates (all 26 coordinates read from the “coordinates.json” file), in order of closest-to-farthest from the origin.
Answers: 1
Asecurity engineer is configuring a wireless network that must support mutual authentication of the...
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