Describe the hidden node problem, and explain how it can be mitigated.?
What will be an ideal response?
The hidden node problem occurs where a node is not visible to other nodes on the other side of a coverage area. One way to ensure that packets are not inhibited by other transmissions is to reserve the medium for one station's use. In 802.11, this can be accomplished through the optional RTS/CTS (Request to Send/Clear to Send) protocol. RTS/CTS enables a source node to issue an RTS signal to an access point requesting the exclusive opportunity to transmit. If the access point agrees by responding with a CTS signal, the access point temporarily suspends communication with all stations in its range and waits for the source node to complete its transmission.
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Case-Based Critical Thinking QuestionsCase 7-1Ethan is studying for a test about file names, extensions, and types. Answer the questions. Windows keeps a list of file types and their corresponding default programs. What links these two things together?
A. file mapping B. listing of default programs C. file association D. file extension
Stream reduction operation ________ uses the elements of a collection to produce a single value using an associative accumulation function (e.g., a lambda that adds two elements).
a. reduce b. condense c. combine d. associate
Bluetooth is supported by only a few of the major operating systems.
Answer the following statement true (T) or false (F)
You are in charge of designing a menu tree for navigating 1,250 books in a digital library. Present an argument of whether the menu should have larger depth (number of levels) or breadth (number of items per level).
What will be an ideal response?