Unlike standard HTTP requests, which usually replace the entire page in a web browser, the ____________________ object can be used to request and receive data without reloading a web page.
Fill in the blank(s) with the appropriate word(s).
XHR
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What does the term last mile mean, relative to telecommunications?
a. The distance from the RF transmitter to the receiver in WiMAX b. A measurement of signal coverage for WiMAX and for Wi-Fi c. A term for the last connection prior to linking to the RF transmitter d. The last part of the connection from the telecommunications provider to the customer
Which one of the following statements is not true about red-black trees?
a. An AVL tree is better than a red-black tree with the same data for searching, inserting, and deleting operations b. In the average case, the complexity of inserting one member into a red-black tree is O(log(n)) c. In the average case, the complexity of searching for one member in a red-black tree is O(log(n)) d. A red-black tree is a binary search tree
In ____ polling, the central control unit, usually a server, polls each client to determine if it has traffic to transmit.
A. roll ahead B. roll-call C. go-ahead D. call-ahead
When determining if there is a possible overlap in subnets, what is the first step that should be done to approach the problem systematically?
A) Calculate the subnet ID and subnet broadcast address of each subnet. B) List the subnet IDs in numerical order. C) Compare adjacent entries. D) Determine if there is any overlap in address range.