Golgappa.net | Golgappa.org | BagIndia.net | BodyIndia.Com | CabIndia.net | CarsBikes.net | CarsBikes.org | CashIndia.net | ConsumerIndia.net | CookingIndia.net | DataIndia.net | DealIndia.net | EmailIndia.net | FirstTablet.com | FirstTourist.com | ForsaleIndia.net | IndiaBody.Com | IndiaCab.net | IndiaCash.net | IndiaModel.net | KidForum.net | OfficeIndia.net | PaysIndia.com | RestaurantIndia.net | RestaurantsIndia.net | SaleForum.net | SellForum.net | SoldIndia.com | StarIndia.net | TomatoCab.com | TomatoCabs.com | TownIndia.com
Interested to Buy Any Domain ? << Click Here >> for more details...


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

Answers were Sorted based on User's Feedback



What does a router change in a packet when it forwards a packet to the next hop? * A: Destin..

Answer / sudeep_mib

A: Destination physical address

Is This Answer Correct ?    33 Yes 11 No

What does a router change in a packet when it forwards a packet to the next hop? * A: Destin..

Answer / 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

What does a router change in a packet when it forwards a packet to the next hop? * A: Destin..

Answer / mr.shahin07

(10.0.0.1) (10.0.0.2)
S0 S0
(R1)------------------------(R2)
!E0/1 (0ACF:AAA1:000A) ! E0/1 (1ACF:BBA1:010A)
!IP - 172.16.1.100 ! IP - 172.17.1.100
! !
! !
! !
(Host A) (Host B)
E0 (ABC0:ABB1:00A0) E0 (CAA0:ABE1:110A)
IP - 172.16.1.1 IP - 172.17.1.1

Just assume this is a network & all interfaces having their
Layer 2 & Layer 3 addresses.

Now Host A want to send some data to Host B.

Now wat wud be the Layer 2 & 3 source & Destination address.

a) Packet leaving Host A.

Layer 3 Source add - 172.16.1.1
Layer 3 Destination add - 172.17.1.1

Layer 2 Source add - ABC0:ABB1:00A0 (E0 of Host A)
Layer 2 Destination add - 0ACF:AAA1:000A (E0/1 of R1)

b) Packet leaving Router R1 -

Layer 3 Source add - 172.16.1.1
Layer 3 Destination add - 172.17.1.1

Layer 2 Source add - 0ACF:AAA1:000A (E0/1 of R1)
Layer 2 Destination add - 1ACF:BBA1:010A (E0/1 of R2)

c) Packet leaving Router R2 -

Layer 3 Source add - 172.16.1.1
Layer 3 Destination add - 172.17.1.1


Layer 2 Source add - 1ACF:BBA1:010A (E0/1 of R2)
Layer 2 Destination add - CAA0:ABE1:110A (E0/1 of R2)

So every time DESTINATION PHYSICAL ADDRESS is changed.

Hi guys, i just share wat i know. Let me if i m wrong. Your
feedback is important for me.

With Thanx & Regards
Shahin Ahmed

Is This Answer Correct ?    5 Yes 1 No

What does a router change in a packet when it forwards a packet to the next hop? * A: Destin..

Answer / aurel

Shahin 07

You make it clear and easy to get. Many thanks !

Is This Answer Correct ?    2 Yes 0 No

What does a router change in a packet when it forwards a packet to the next hop? * A: Destin..

Answer / jitendera kumar sinha

ha ha thanks shain for supporting me and providing the scenario based explanation people don't like to read theory so this article help them more.i mark it as excellent

Is This Answer Correct ?    1 Yes 0 No

What does a router change in a packet when it forwards a packet to the next hop? * A: Destin..

Answer / gyan

TTL will also be decremented by 1 on each router before forwarding.

Is This Answer Correct ?    1 Yes 0 No

What does a router change in a packet when it forwards a packet to the next hop? * A: Destin..

Answer / jitendera kumar sinha

but sahin if u make your answer with three router (R1 R2 and R3)and host off R1 want to send the data to R3 through R2 then it will easy to understandble.meanwhile it is excellent

Is This Answer Correct ?    0 Yes 0 No

What does a router change in a packet when it forwards a packet to the next hop? * A: Destin..

Answer / guru

Above answer are correct

Is This Answer Correct ?    0 Yes 0 No

What does a router change in a packet when it forwards a packet to the next hop? * A: Destin..

Answer / purbi sinha

sudeep mall is coreect

Is This Answer Correct ?    1 Yes 4 No

What does a router change in a packet when it forwards a packet to the next hop? * A: Destin..

Answer / jawad

destination network address

Is This Answer Correct ?    11 Yes 15 No

Post New Answer

More CCNA Interview Questions

hi shain/sudeep and rest of all plz answer these question for help some one as soon as possible what is stub area what is transit area let there are three area in ospf a0 a2 and a3 if a2 and a3 is coneted through each other will they comnicate

3 Answers  


Identify 3 characteristics regarding IP access-lists? A.) Can be configured as a standard access-list B.) Can be run from another router running IP C.) Can be configured as a named access-list D.) Are the same as IPX access-lists E.) Can be configured as an extended access-list

1 Answers  


When does network congestion occur?

0 Answers  


There is an emergency fall-back 'skeleton' IOS stored in read only memory on all Cisco routers. What command would make the router load the IOS from Read Only Memory? A.) reload rom B.) boot system rom C.) load ios bootflash D.) load ios rom E.) bootsystem skeleton

3 Answers  


(1)what is "rtp" and how it work, (2)what is diffrence between igrp and eigrp (3)the slection prcedure of dr and bdr is depend open (4)why frame really is called nbma (5)what is ppp (6) what is diffrence b/w tcp and udp (7) how can we implement ospf protocall on any router (8)whta is as nomber (9)what is AD value (10)what is the broadcast id,n/w id and number of vallid host of the 255.255.255.128/25 195.168.10.10/25 (11) what is stub network (12) what is contigues n/w (13)on which type of router we can implement default routing (14)what is diffrence b/w hub switch;switch router, (15)what is v lan (16)what is the diffrence b/w link sate protocal and distance vector protocall (17)what is synchoransh mode of data transfer and asynchronash mode of data transfer (18) question on lab, belive me frnds there are 20 questions and 5 questions on lab implimentaion.around 1.1/2 hour i was in interview room and after givieng 17 right answera and 4 in lab i got slected try to give answer if any difficulty or any prob plz email me on jitenderasinha.it@gmail.com if any one of you havae boson netsim plz also intimate me

4 Answers  


How does inter- VLAN communication take place? A. It takes place through any Cisco router B. It takes place through a Cisco router that can run ISL C. It takes place through a router but this disables all the router a security and filtering functionality for the VLANS D. For nonroutable protocals (e.g. NetBeui) the router provides communications between VLAN domains E. Inter-VLAN communication is not possible because each VLAN is a separate broadcast domain

3 Answers  


Given the address 172.16.2.120 and the subnet mask of 255.255.255.0. How many hosts are available? A. 254 B. 510 C. 126 D. 16,372

1 Answers  


What is the syntax to use to configure the port on a Catalyst 5000 switch? A.) slot port/type B.) type slot/port C.) port slot/type D.) port type/slot

1 Answers  


Given the IPX address 4a.0002.1111.a999, what is the network ID and what is the node ID? A.) net 4a host 0002.1111.a999 B.) net a999 node 0002.1111 C.) net 0002.1111.a999 node 4a D.) net 0002.1111 node a999

2 Answers  


why we give clock rate to DCE and not to DTE what is the difference in the two.

3 Answers  


Which of the following will apply IPX sap access list 1010 for incoming traffic, assume you are at the interface configuration? A.) ipx input-sap-filter 1010 in B.) ipx input-sap-filter 1010 C.) ipx access-group 1010 in D.) ipx access-list 1010 in

1 Answers  


Can anyone explain in details the STP port state?????

2 Answers  


Categories