Explain why e-mail servers are difficult to manage.

What will be an ideal response?

E-mail servers store user lists, user rights, and messages, and are constantly involved in Internet traffic and resources. Setting up and administering an e-mail server takes a lot of planning, although it's getting easier.
 

Computer Science & Information Technology

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Which line in the following program contains the prototype showDub function?

``` 1 #include 2 using namespace std; 3 void showDub(int); 4 int main() 5 { 6 int x = 2; 7 showDub(x); 8 cout << x << endl; 9 return 0; 10 } 11 void showDub(int num) 12 { 13 cout << (num * 2) << endl; 14 } ``` a. line 3 b. line 4 c. line 7 d. line 11

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Computer Science & Information Technology

A stack is referred to as a(n) _____________ data structure, because the last node inserted is the first node removed.

Fill in the blank(s) with the appropriate word(s).

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Computer Science & Information Technology

Which of these routing protocols is the oldest?

A. RIP B. OSPF C. BGP D. IGRP

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Computer Science & Information Technology

To authenticate electronic documents as yours, you need to create a digital signature.?

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

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Computer Science & Information Technology