Answer:
Not necessarily malignant
Explanation:
As the word "unclassified" shows it's not damaging, however I still doesn't recommend if it's not necessary.
Answer:
Traceroute
Explanation:
Traceroute which can also be called tracert is a system utility which helps to record the route through the internet from one computer to another using ICMP packets.
It helps to determine if there is any packet loss or unexpected latency to a hostname.
<span>The MAC address marks the final destination of the frames.
It marks the next destination.</span>