Ann, a user, is experiencing an issue with her wireless device. While in the conference area, the wireless signal is steady and strong. However, at her desk the signal is consistently dropping, yet the device indicates a strong signal. Which of the following is the MOST likely cause of the issue?
A. Signal-to-noise ratio
B. AP configuration
C. Incorrect SSID
D. Bounce
Answer: D. Bounce
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Suppose that transactions T1 and T2 can be decomposed into the subtransactions T1 : T1,1, T1,2 and T2 : T2,1, T2,2 such that each subtransaction individually maintains the consistency constraints of the database. Instead of guaranteeing that all schedules involving T1 and T2 are serializable, suppose that a concurrency control guarantees that all subtransactions are always executed serializably.
a. Will T1 always be serializable with T2? Explain. b. Will integrity constraints be maintained by all possible schedules? c. What possible problems might arise if the concurrency control schedules transactions in this way?
____________________ is the process of arranging a group of items into a defined order.
a) Searching b) Sorting c) Selecting d) Helping e) none of the above
Answer the following statements true (T) or false (F)
1) 4DOM’s StripXml function parses an XML document. 2) With SAX-based parsing, the parser reads the input, storing it in memory as a tree structure. 3) The second argument passed to parse must be an instance of class xml.sax.Con- tentHandler (or a subclass of ContentHandler). 4) If an error occurs while parsing a file, xml.sax function parse raises a SAXParse- Exception exception.
Attribute values do not allow you to control the format of the character data.
Answer the following statement true (T) or false (F)