Nt1330 Unit 4
ITEC325
Final Study Guide
True/False
Indicate whether the sentence or statement is true or false.
____ 1. The value of layers in the OSI reference model is that it divides networking into a series of tasks, and then illustrates how those tasks relate to each other.
____ 2. When transmitting with FHSS, if interference is encountered on a particular frequency then that part of the signal will be retransmitted on the previous frequency of the hopping code.
____ 3. Increasing the speed of the WLAN will cause shorter delays in waiting for reflections.
____ 4. Because wireless technology has advanced at such a rapid pace, the earliest WLANs are now essentially obsolete.
____ 5. Of the 52 subchannels, 32 are used for …show more content…
A drawback of spectrum analyzers is that the information is displayed in graphical form and not as raw data.
____ 19. The industry-standard form for site survey documentation is IEEE 802.11D.
____ 20. The first step in collecting RF information is to position the access point in what may appear to be the most logical location.
Multiple Choice
Identify the letter of the choice that best completes the statement or answers the question.
____ 21. What is the top layer of the OSI reference model? a. | application | c. | physical | b. | presentation | d. | transport |
____ 22. Which layer of the OSI reference model permits the devices on the network to hold ongoing communications across the network? a. | presentation | c. | transport | b. | session | d. | network |
____ 23. ____ signals by nature transmit on only one frequency or a very narrow portion of the frequencies. a. | Broadband | c. | Radio | b. | Computer | d. | Heat |
____ 24. What is a disadvantage of narrowband transmissions? a. | requires a complicated algorithm | c. | expensive to implement | b. | not well regulated | d. | interference from another radio signal |
____ 25. When was the concept used by FHSS technology
Final Study Guide
True/False
Indicate whether the sentence or statement is true or false.
____ 1. The value of layers in the OSI reference model is that it divides networking into a series of tasks, and then illustrates how those tasks relate to each other.
____ 2. When transmitting with FHSS, if interference is encountered on a particular frequency then that part of the signal will be retransmitted on the previous frequency of the hopping code.
____ 3. Increasing the speed of the WLAN will cause shorter delays in waiting for reflections.
____ 4. Because wireless technology has advanced at such a rapid pace, the earliest WLANs are now essentially obsolete.
____ 5. Of the 52 subchannels, 32 are used for …show more content…
A drawback of spectrum analyzers is that the information is displayed in graphical form and not as raw data.
____ 19. The industry-standard form for site survey documentation is IEEE 802.11D.
____ 20. The first step in collecting RF information is to position the access point in what may appear to be the most logical location.
Multiple Choice
Identify the letter of the choice that best completes the statement or answers the question.
____ 21. What is the top layer of the OSI reference model? a. | application | c. | physical | b. | presentation | d. | transport |
____ 22. Which layer of the OSI reference model permits the devices on the network to hold ongoing communications across the network? a. | presentation | c. | transport | b. | session | d. | network |
____ 23. ____ signals by nature transmit on only one frequency or a very narrow portion of the frequencies. a. | Broadband | c. | Radio | b. | Computer | d. | Heat |
____ 24. What is a disadvantage of narrowband transmissions? a. | requires a complicated algorithm | c. | expensive to implement | b. | not well regulated | d. | interference from another radio signal |
____ 25. When was the concept used by FHSS technology