Reference no: EM133314054
Questions
1. Richochet's wireless data network operates in the free unlicensed industrial, scientific and medical (ISM) frequency band around 900 MHz.
True
False
2. In the transmission control protocol / internet protocol (TCP/IP) application layer, this application runs special purpose networking software, features a public IP address, and contains a database of network names and addresses for other Internet hosts.
Domain name server
File transfer protocol
Network file system
None of the above.
3. An access point (AP) that provides wireless connectivity to numerous mobile stations (MSs) within a fixed range radius of approximately 150 meters is defined as a:
Basic service area (BSA)
Basic service set (BSS)
Extended service set (ESS)
None of the above.
4. Data transfer can take place via a downlink or uplink which allows transfer of data bi-directionally and simultaneously.
True
False
5. The IEEE 802.11 Wi-Fi / WLAN standards set the attributes for the different channels that may be used. How many channels are allowed for use by the federal communications commission (FCC) in the United States?
13
11
18
14
6. What is a WBAN and explain how / what it's purpose is?
7. Explain the Diffie-Hellman key exchange?
8. Explain what a stream cipher is and what block encryption is. Which one is more secure and when would we use one over the other?