Many admins set their firewalls to drop echo-request packets to prevent their networks from being mapped via "Ping Sweeps".
A remote possibility is that there's too many hops between the source and target and the packet's TTL expires.
A word was used that has different meanings in different contexts is confident.
<h3>Why confident has a positive and negative connotations?</h3>
The Negative Connotation of confident is arrogant or proud. Connotative meaning of a word often consist of qualitative judgments and personal reactions to that word.
People may see confident as used by an individual as a person who is too proud while others may see it as someone who can stand up to a task given.
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Answer:
Both animal and plant cells have mitochondria, but only plant cells have chloroplasts. ... Because animals get sugar from the food they eat, they do not need chloroplasts: just mitochondria.