At upper layers of the OSI reference model, bits are grouped together into protocol data units (PDUs) or data service units

Indicate whether the statement is true or false

TRUE

Computer Science & Information Technology

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What is the output of the following code?

``` ArrayList list = new ArrayList(); String s1 = new String("Java"); String s2 = new String("Java"); list.add(s1); list.add(s2); System.out.println((list.get(0) == list.get(1)) + " " + (list.get(0)).equals(list.get(1))); ``` a. true false b. false true c. true true d. false false

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Computer Science & Information Technology

Because resolution is so closely associated with image quality, resizing an image may have a negative effect on its appearance.

Answer the following statement true (T) or false (F)

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Computer Science & Information Technology

The macro recorder is used for copying existing macros

Indicate whether the statement is true or false

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Computer Science & Information Technology

In the scenario you should be aware that 802.11a uses a 5GHz signal, which makes it effective only at shorter distances, as well as incompatible with 802.11b's 2.4GHz signal, but places it in a much less-crowded bandwidth. Which of the following protocols provides the actual encryption used over VPN?

A. PPP B. HTTPS C. PPTP D. SSH

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Computer Science & Information Technology