What does a router change in a packet when it forwards a
packet to the next hop?
* A: Destination physical address
* B: Destination network address
* C: Destination network address and the destination
physical address
- 10 Answers
- 17493 Views
- Microland, I also Faced
- E-Mail Answers
Answer Posted / jitendera kumar sinha
sudeep is correct option is A
here is the explanation
Let's say that we have Host A and Host D. Host A sends a
packet to Host D, which Host D is on a different network.
Host A applies both the logical address and logical device
address before sending the packet. The source network layer
address is also added to the packet, so the receiving device
can reply if it needs to. Then Host A adds it's own device
address (which in this example is 10.) Instead of adding the
device address of Host D, it uses the next router in the
path (which it's address is 20.) Now the packet is sent and
is received by the next router. Router B examines the
destination address and recognizes the address is addressed
to it. The router strips off the data link addresses and
examines the destination device of the network layer. It
recognizes the address to be on a different network. Since
Router C is the next router in the path, Router B sends the
packet to it. So Router B applies it's own device address
(20) and uses Router C device address as the destination
address (30) Router B sends the packet to Router C. Router C
sees that it's addressed to it. Router C strips off the data
link addresses and examines the destination device of the
network. It recognizes that the packet is sent to Host D.
Router C applies it's own device address and applies the
destination address of Host D (40) Router C sends the packet
to Host D. The data link addresses are removed. The original
source and destination addresses are contained in the packet
at the network layer.
hope this article help those people who marked it wrong
| Is This Answer Correct ? | 4 Yes | 0 No |
Post New Answer View All Answers
Which company mange api's?
What are the advantages of a layered model in the networking industry?
What is the difference between static ip addressing and dynamic ip addressing?
Who controls mac address uniqueness and how?
Which mode we can't skip when we come back from interface mode?
Which feature should a routing protocol have to support vlsm?
What is difference between baseband and broadband transmission in ccna?
hi friend i am sending some interview question which is asked from me at volvo hope this will help you of all 1 what is mpls al question is posted by jitendera kumar sinha
Which protocol can do load balancing on unequal cost also?
Explain what are the ranges of private ips?
Define class full protocol?
What is GRE in PPTP?
What is the command for change serial cost?
Explain why ip address called logical address?
Explain why UDP is lease favored when compared to TCP?
