Which of the following fields in an IP packet header contains information that prevents a packet from continuously circulating around a network.
A. flags
B. fragment Offset
C. TTL
D. TOS
Answer: C
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An identifier’s storage class:
a. Determines whether an identifier is known only in the current source file or in any source file with proper declarations. b. Determines the period during which that identifier exists in memory. c. Determines where the identifier can be referenced in a program. d. All of the above.
Which of the following is an invalid way to instantiate a String object?
a)``` String title = new String("Java Software Solutions"); ``` b)``` String name = "John Lewis"; ``` c)``` String empty = ""; ``` d)``` String alsoEmpty = new String(""); ``` e)``` all of the above are valid ```
Modify the code of Fig. 9.3 (Tree.java) to replace the JAXP default parser with the Xerces SAX 2.0 parser.
Figure 9.3
If the path to an image is incorrect:
A) the viewer will receive a pop-up error notification. B) there will be an error message displayed directly on the page. C) the browser substitutes an icon where the image would be. D) the entire page will not display.