learning and teaching (57) 0 Prepare and expect Egypt 2005

https://wodewangzhishime.blogspot.com/2021/09/httpswodewangzhishime_35.html

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Ref: https://wodewangzhishime.blogspot.com/2021/09/httpswodewangzhishime_87.html .

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While (the telecom is running)

{

int caller;

Int receiver = 999;

if (caller = John)

{

Bind (physical address of receiver, 999);

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integer surveillance ;

If (surveillance = 1)

{

Bind (physical address of Kelvin, 999);

}

else

{

Unbind (physical address of Kevin, 999);

}

}

else

{

Bind (physical address of receiver, 999);

}

}

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John: Let me explain to you the above code.

Me: Go ahead.

John: When Kelvin detect the receiver is 999, Kelvin can decide if he wants to eavesdrop on it or not.

Me: Ok.

John: If Kelvin press 1, the eavesdrop start. If Kelvin press 0, the eavesdrop stop.

Me: Ok.

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John: One day of 2014, Kelvin detect that I call 999 and request an ambulance to pick up my father. Kelvin Immediately contact the boss of the ambulance teams.

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Kelvin : I detect that John ask for an ambulance.

Mr. Wong (the leader of ambulance team): Your hacking techniques is so high.

Kelvin : For sure. Now, who are free now?

Mr. Wong : Mr. Luk and Mr. Lau.

Kelvin: Good. You tell them to go to pick up John's father. Remind them, "John's father and John are under surveillance. ".

Mr. Wong: I've got it.

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