Which protocol and port number are used by HSRP?

A) UDP, 1965
B) TCP, 1975
C) UDP, 1985
D) TCP, 1917

C
Explanation: C) HSRP uses UDP port 1985 using the multicast address 224.0.0.2 (Version 1 ) or 224.0.0.102 (Version 2).

Computer Science & Information Technology

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The following program purports to sum all entered int values that are greater than 5. It compiles without any error message, and it executes without error message, but nevertheless is wrong. Name all the errors.

``` // Display the sum of all entered int values // greater than 5 #include int main() { using namespace std; int x, sum; while (x < 10) { cin >> x; if (x > 5); sum = sum +x; } cout << “The sum is values > 5 is “ << sum << endl; ``` a) The while header needs a semicolon at the end of its line. b) The semicolon at the end of the if statement is an error that the compiler should catch. c) The semicolon at the end of the if statement causes all entered values to be summed. d) The sum variable is not initialized, so the output value is most likely garbage.

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Dynamic IP addressing is accomplished using a DHCP server

Indicate whether the statement is true or false

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?Electronic data interchange (EDI) enables _____ inventory systems, which rely on computer-to-computer data exchange to minimize unnecessary inventory.

A. ?CRM (Customer relationship management) B. ?EPOD (Electronic proof of delivery) C. ?JIT (Just-in-time) D. ?RFID (Radio frequency identification)

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The informal expression used more often for searching for RF signals is ____.

A. phishing B. pharming C. beaconing D. wardriving

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Computer Science & Information Technology