By right clicking the box I believe.
<em>Answer:</em>
<em>Each entry in the label stack contains four fields:
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<em>A 20-bit label value. A label with the value of 1 represents the router alert label.
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<em>a 3-bit Traffic Class field for QoS (quality of service) priority and ECN (Explicit Congestion Notification). Prior to 2009 this field was called EXP.[8]
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<em>a 1-bit bottom of stack flag. If this is set, it signifies that the current label is the last in the stack.
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<em>an 8-bit TTL (time to live) field.</em>
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Answer:
C) Selective Authentication
Because users that only he allows to read the email can, in this case his team members.
Answer:
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