You can block logical ports from invaders and make your computer invisible to others on the Internet by installing ________
A) a firewall B) antivirus software C) a packet filter D) a packet sniffer
A
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When implementing a keyPressed()method, you can replace the conditional placeholder in an if statement with the parameter ____ to determine whether the key specified by "?" was pressed.
A. e.isKey(Key.?) B. e.isKey(TRUE.?) C. e.isPressed(Key.?) D. e.isPressed(TRUE.?)
Answer the following statements true (T) or false (F)
1. It is possible for a module to call itself. 2. The term 'callback potential' refers to the number of times a module calls itself. 3. The Fibonacci Series is a well-known mathematical problem that can be solved recursively. 4. The only language that cannot use recursion is Python.
In a certain system, each process typically uses a critical section many times before another process requires it. Explain why Ricart and Agrawala’s multicast-based mutual exclusion algorithm is inefficient for this case, and describe how to improve its performance. Does your adaptation satisfy liveness condition ME2?
What will be an ideal response?
Which is the most efficient way to concatenate the two strings, "quick brown fox" and "jumped over the lazy dog" in Java?
A. String string1 = "quick brown fox"; string1 = string1 + " jumped over the lazy dog"; B. String string1 = "quick brown fox"; String string2 = string1 + " jumped over the lazy dog"; C. String string1 = "quick brown fox"; String string2 =" jumped over the lazy dog"; String string3 = string1 + string2; D. StringBuffer buffer = new StringBuffer("quick brown fox"); buffer.append(" jumped over the lazy dog"); String string1 = buffer.toString();