A link is 1213 km in length. The propagation velocity on the link is 198000000 m
ID: 1931891 • Letter: A
Question
A link is 1213 km in length.
The propagation velocity on the link is 198000000 m/s.
The data rate of the link is 6176000 bit/s.
A link is 2873 km in length.
The propagation velocity on the link is 198000000 m/s.
The data rate of the link is 6176000 bit/s.
We have a channel where the QAM-256 modulation scheme determines the number of bits per symbol.
The sampling rate is 8E3 symbols/sec.
What one-word term describes the changes in the relative power of the various Fourier components (e.g., the shape of a pulse) as a signal propagates though a band-limited medium?
A channel has a bandwidth of 2 MHz and Signal-to-Noise ratio of 6.3 dB.
What statement below best describes how Code Division Multiplexing allows multiple users on the same channel?
In the sliding window error recovery scheme what does the sender-side window represent?
Assume that the protocol supports flow control with variable size windows.
Pick the one answer that is true all of the time.
In the sliding window error recovery scheme what does the receiver-side window represent?
Pick the one answer that is true all of the time.
Which of the following statements about CSMA-CD are true?
Select all that apply.
What are the link-invariants of an Ethernet MAC? Do not include characteristics that are merely desirable.
Select all that apply.
What does the MAC sub-layer of a host's Ethernet interface do when it receives a frame with a destination address that does not match any address bound to the interface? Assume that the interface is NOT in promiscuous mode.
Select the answer that best describes why the hidden station problem occurs in wireless channels
Select all of the following that are true statements about IEEE 802.11, the Wireless LAN protocol
What is the maximum number of active slaves in a Bluetooth piconet?
The following statements are about a bridged network. Select all of the statements that are true
Select all of the following that are true statements concerning full-duplex Ethernet
In a spanning-tree bridged network how many paths exist between any pair of stations?
(Please enter a numeric value for your answer, e.g. 0, 1, 2, etc.)
An 802.1Q frame can be associated with more than one VLAN. True or False?
A link between two 802.1Q tag-aware interfaces can transport frames for more than one VLAN. True or False?
Explanation / Answer
B) The packets were created with different time-to-live values.
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