Final Exam Practice Flashcards
The Network layer encapsulates what type of PDU?
Segment
Port numbers are added at which layer?
Transport layer
What packet sequence does TCP use to take down a connection?
FIN, FIN ACK, FIN
What does tracert provide that ping doesn’t?
A list of routers between the source & destinations
What field in the incoming packet does a router use
to forward it to the outgoing interface?
The destination IP address (NOT the MAC address)
What are the four message involved in a
DHCP configuration?
Discover, offer, request, acknowledge
Which cmd commands are based on the ICMP
protocol?
ping, tracert (Trace route)
A MAC address is built from 2 values.
How are they assigned?
Of the 6 bytes that make a MAC address, 3 are the OUI, 3 are the IUI.
OUI is assigned by IEEE, IUI is assigned by the manufacturer
What does arp -a do?
Displays the ARP table
What does arp -d * do?
Deletes the ARP table
Which layer is routing done at?
The network layer
Which application layer uses these protocols: FTP, HTTP, HTTPS, POP3
TCP
Which application layer uses these protocols: TFTP, DNS, DHCP, VoIP
UDP
TTL is a part of which network layer?
Network layer, (part of routing)
2001:0db1:00a3:0000:0000:0000:0000:7334
To compress this IPv6 address we should
Replace all replaceable 0s
