Home > ICND1 – OSI & TCP/IP Model

ICND1 – OSI & TCP/IP Model

June 26th, 2017 in ICND1 100-105 Go to comments

[am4show have=’p2;’]

Premium Member: You can test your knowledge with these questions first via this link.

[/am4show]

Note: If you are not sure about OSI Model, please read my OSI Model Tutorial.

Question 1

[am4show have=’p2;’]Which OSI layer header contains the address of a destination host that is on another network?

A. application
B. session
C. transport
D. network
E. data link
F. physical

 

Answer: D[/am4show]

Question 2

[am4show have=’p2;’]At which layer of the OSI model does the protocol that provides the information that is displayed by the show cdp neighbors command operate?

A. application
B. transport
C. network
D. physical
E. data link

 

Answer: E[/am4show]

Explanation

CDP runs at Layer 2 (Data Link) of the OSI model -> E is correct.

Question 3

[am4show have=’p2;’]What are two common TCP applications? (Choose two)

A. TFTP
B. SMTP
C. SNMP
D. FTP
E. DNS

 

Answer: B D[/am4show]

Explanation

SMTP stands for Simple Mail Transfer Protocol. It’s a set of communication guidelines that allow software to transmit email over the Internet while File Transfer Protocol (FTP) is a standard network protocol used to transfer files from one host to another host over TCP-based network.

Note: Simple Network Management Protocol (SNMP) uses UDP as the transport protocol for passing data between managers and agents. SNMP uses UDP to help reduce the impact on your network’s performance. Although SNMP can be configured to run on TCP but we should only do it in special situations. SNMP uses the UDP port 161 for sending and receiving requests, and port 162 for receiving traps from managed devices.

DNS work on both the TCP and UDP protocols. DNS uses TCP for zone exchanges between servers and UDP when a client is trying to
resolve a hostname to an IP address. Therefore in most cases we say “DNS uses UDP”.

Question 4

[am4show have=’p2;’]Which two characteristics describe the access layer of the hierarchical network design model? (Choose two)

A. layer 3 support
B. port security
C. redundant components
D. VLANs
E. PoE

 

Answer: B D[/am4show]

Explanation

The primary function of an access-layer is to provide network access to the end user.

The hardware and software attributes of the access layer that support high availability include security services for additional security against unauthorized access to the network through the use of tools such as 802.1x, port security, DHCP snooping, Dynamic ARP Inspection, and IP Source Guard.

Question 5

[am4show have=’p2;’]Which layer of the TCP/IP stack combines the OSI model physical and data link layers?

A. Internet layer
B. transport layer
C. application layer
D. network access layer

 

Answer: D[/am4show]

Explanation

The picture below compares the two TCP/IP and OSI models:

OSI_TCP_IP_Comparison.jpg

Question 6

[am4show have=’p2;’]Which layer of the OSI model controls the reliability of communications between network devices using flow control, sequencing and acknowledgments?

A. Physical
B. Data-link
C. Transport
D. Network

 

Answer: C[/am4show]

Explanation

Transmission Control Protocol (TCP) has all the features mentioned above and TCP resides in Transport Layer (Layer 4) of the OSI model.

Flow control: A methodology used to ensure that receiving units are not overwhelmed with data from sending devices when buffers at a receiving unit are full, a message is transmitted to the sending unit to temporarily halt trans-missions until all the data in the receiving buffer has been processed and the buffer is again ready for action.

Sequencing: is used to number segments before sending so they can be put back together again in the correct order at the receiving side.

Acknowledgment: When the receiver gets the data, it sends a response telling the sender that the data have been safely arrived.

Question 7

[am4show have=’p2;’]Which network device functions only at Layer 1 of the OSI model?

A. bridge.jpg bridge
B. hub.jpghub
C. NIC_Card.jpgNIC
D. router.jpgrouter
E. switch.jpgswitch

 

Answer: B[/am4show]

Explanation

In CCNA, the popular devices operate in Layer 1 are hub and repeater.

Question 8

[am4show have=’p2;’]A network administrator cannot connect to a remote router by using SSH. Part of the show interfaces command is shown.

router#show interfaces
Serial0/1/0 is up, line protocol is down

At which OSI layer should the administrator begin troubleshooting?

A. physical
B. data link
C. network
D. transport

 

Answer: B[/am4show]

Question 9

[am4show have=’p2;’]On which OSI layer does a VLAN operate?

A. Layer 1
B. Layer 2
C. Layer 3
D. Layer 4

 

Answer: B[/am4show]

Comments (75) Comments
Comment pages
1 2 322
  1. Anonymous
    May 27th, 2017

    @han please email {email not allowed}

  2. Anonymous
    May 27th, 2017

    Maria.shannon.m @ gmail

  3. Yury
    May 29th, 2017

    Dumps shared by Han are still valid!

    Score 9xx , had only 4 questions not covered in the dumps.

    Good luck!

  4. Sam
    June 7th, 2017

    Does anyone know if these questions help to pass ICND1?
    I want to take ICND1 soon if anyone know any information about the exam reply.\
    Thanks in advance!

  5. Chmod000chmod
    June 8th, 2017

    @han would you please be able to send the dumps to my email? it’s killa_ant @ hotmail.com (no spaces before and after @ sign)

  6. Anonymous
    June 10th, 2017

    Anyone have the current dumps for ICND1? {email not allowed}

  7. Anonymous
    June 10th, 2017

    cammyp8nt @gmail.com

  8. Trevor
    June 20th, 2017

    I used the dumps from IT-Libraries referenced in the comments here https://www.9tut.net/icnd1-100-105/new-icnd1-basic-questions-2

  9. Brooks
    June 30th, 2017

    magnificent issues altogether, you just gained a emblem new reader. What may you recommend about your publish that you made some days ago? Any certain?

    abcd.com

  10. Shayan
    July 4th, 2017

    Is there any one who can send me the authentic Dumps ICND1 to my email {email not allowed}
    I’ll be sincerely Thankful to him
    Thanks

  11. Anonymous
    July 7th, 2017

    please i need dumps for icnd1 can some one help me please please.
    paulmiller2050 at gmail.com

  12. Pack The Ripper
    July 9th, 2017

    Tp447 at yahoo dot co dot uk if you have the valid dumps please.

  13. Lew
    July 16th, 2017

    if anyone has dumps please send to lmccallion @ hotmail.com thanks

  14. Southerner
    August 3rd, 2017

    Someone, please send me CCNA latest dumps to tshwarie2000 at yahoo.com I’ll be very much grateful!

  15. Alix
    August 30th, 2017

    making an attempt in the direction of be there, it is tradition and pleasurable

    e343453.com

  16. Ash
    August 31st, 2017

    Anyone got latest dumps for icnd1 pls djash22@gmail dot com

  17. recom
    October 3rd, 2017

    anyone with the latest dumps for icnd1, i am taking the exam on thursday, please send to releond @gmail.com

  18. Areste
    October 5th, 2017

    Hi all
    I’m going to take the ICND1 exam in two weeks, can anyone please share the latest dump ? Mail will_mc_tell (at) yahoo fr
    Thanks a lot !

  19. Anonymous
    October 10th, 2017

    Hi all
    I’m going to take the ICND1 exam, can anyone please share the latest dump? {email not allowed}

  20. Anonymous
    October 10th, 2017

    Hi all
    I’m going to take the ICND1 exam, can anyone please share the latest dump? mail dislaraquel(at)gmail.com

  21. Asande
    October 17th, 2017

    Please share dumps @ {email not allowed}

  22. tom
    October 30th, 2017

    please send me latest dumps on tuqeera10 at gmail . com

  23. Anonymous
    November 2nd, 2017

    can someone send me 101 -105 VCE dumps I have the VCE engine which I purchased for a high amount , you can send them on joseoluoch at gmail dot com please I am trying to re certify asap before end of the year

  24. sam
    November 16th, 2017

    congrats quentin !! what is the name of this group, cuz the link you post just encrypted,
    Much appreciate if you would send it to “hanoos.hk(at)gmail”

  25. Anonymous
    November 27th, 2017

    Good day All!

    I trust you are all well?
    Just wanna know if we getting responses to our queries above?

    Can somebody please send me ICND1 v3 DUMBS to my email: lawrencenakedi @ gmail .com no spaces.. your assistance is highly appreciated.

  26. Mopedi Thwiiii
    November 28th, 2017

    Hi Guys,

    Anyone who has passed the exam(part 1) recently?

  27. SAS
    December 10th, 2017

    Hi guys
    Could any1 email me the new dumps for ICND 1&2
    Please, that would be highly appreciated.
    mdhasan99 at gmail dot com

  28. huy
    January 5th, 2018

    Hi,
    Could anyone explain question 8 for me?
    Thank you.

  29. GKG
    January 12th, 2018

    @huy if the interface is up but the line is down than it is layer 2 (data link layer) issue.. and if the interface (s0/0/0 is down ) than its layer 1(physical layer ) issue

  30. Anonymous
    January 29th, 2018

    Guys, Can anybody email me the dumps please. Thanks in advance. {email not allowed}

  31. wallace
    February 6th, 2018

    can someone explain 9 question for me?

  32. hass
    February 8th, 2018

    I need a dump for ICND1 if anyone has valid dump, please

  33. JC
    February 27th, 2018

    Wallace:

    Vlan operates on layer 2 because it is a feature or function of switch. Remember that switch is part of layer 2.

  34. Anonymous
    March 1st, 2018

    Hello Im going to take this exam in about a week or so just wanna make sure I’m not studying old stuff. Can someone send me the dumps for ICND1v3. you can send it to btj11 at sbcglobal dot net.

    Thank you very much!

  35. Anonymous
    March 1st, 2018

    btj118 at sbcglobal dot net… sorry

  36. bs6692933
    March 18th, 2018

    I need a dump for ICND1 if anyone has valid dump Please! Thanks bs6692933 at gmail dot com

  37. I need a dump for ICND1 v3
    March 19th, 2018

    send it to nrkarrasch at gmail dot com

  38. Granit
    April 5th, 2018

    Hi, can anyone send me icnd1 dump file
    email: grannit.b at gmail dot com

  39. SAM
    April 13th, 2018

    Hi Guys is there any new ICND1 dump questions Recommended

  40. Turboforce
    April 21st, 2018

    Hi, can anyone please send me icnd1 dump file.. please.. please .. please!!
    email: eas_dhk at hotmail dot com

  41. Jay-Jay
    May 3rd, 2018

    Jay-Jay May 3rd, 2018
    Hi everyone,i am writing icnd 1 next week, can someone please send me the latest dumps for icnd1, wanga.jafta15 @ gmail.com

  42. Jay
    May 15th, 2018

    Can someone send me the latest icnd1 dump file please!
    email: kingpin1380 at gmail dot com

  43. Mr Z
    May 17th, 2018

    how do i get the questions?? anyone

  44. JackBauer
    May 29th, 2018

    Can someone please email me dumps to latest ICDN1?
    paradise . colorado1 @ gmail . com

  45. sh
    July 10th, 2018

    does any one has ICND1 Dump please send to waris.safi1998 at gmail.com

  46. alberthdr
    July 15th, 2018

    I just passed CCENT with 868 on July 6th, there are 54 questions, two labs one for RIPV2 and DHCP, one drag and drop question. 9tut helped me a lot. I have the questions, write me if u want help alberthdr @ hotmail dot com

  47. rajesh
    July 28th, 2018

    can any1 please send me the icnd1 dumps to {email not allowed} ..

  48. rajesh
    July 28th, 2018

    can any 1 send me dumps for icnd1 to my mail rajeshece4b9(@)(gmail)(com)

  49. jr
    August 15th, 2018

    can any 1 send me dumps for icnd1 to my mail budoy619(@)aol.com

  50. jr
    August 15th, 2018

    I’m trying to take the test this week. How is it?

  51. Anonymous
    October 17th, 2018

    Be my bestie for life if u send icnd1 dumps to south2west7 @ gmail . com

  52. helper
    November 15th, 2018

    can any 1 send me dumps for icnd1 to my mail islem . fandouli(@) gmail .com

  53. amoura
    November 15th, 2018

    can any 1 send me dumps for icnd1 to my mail islem . fandouli (@) gmail . com

  54. amoura
    November 15th, 2018

    i will passed my examen tomorrow

  55. Jebm
    November 18th, 2018

    Where can we see above questions??

  56. tw
    November 23rd, 2018

    can any 1 send me dumps for icnd1 to my mail tahirwaqas(@)gmail . com

  57. Me
    November 24th, 2018

    I cannot see the questions, just the answers?? can someone help me please

  58. jamina
    December 18th, 2018

    Hi everyone! Please, I need dumps for icnd1 can someone help me please, please.
    jasmin86 (at) bk . ru

  59. Ashu
    January 11th, 2019

    please will anyone guide me how to use this website for learning CCNA from the beginning?

  60. thejeans
    January 31st, 2019

    I just failed my first attempt today, is there anyone that still has access to a ICND1 or 2 dump that I may have? C . Levi . L . Thomas( @ ) gmail . com

  61. Anonymous
    February 5th, 2019

    Can anyone send me the dump to {email not allowed}

  62. Steve
    February 7th, 2019

    Please send me the dumps at me.meekone ( @ ) gmail . com

  63. Anonymous
    March 1st, 2019

    @han

    Please email me questions for icdn1 and 2, Greatly appreciated. romeroe1961(@)gmail.com

  64. john
    March 3rd, 2019

    Please email me questions or dumps for icdn1 and 2, Greatly appreciated. hamdanganbate(@)gmail.com

  65. h
    April 20th, 2019

    What is a dump file?

  66. SB
    April 29th, 2019

    Please send ICND1 latest dumps to {email not allowed}. Thanks!

  67. SB
    April 29th, 2019

    Please send ICND1 latest dumps to itnetworking2019(@)gmail.com

  68. Anonymous
    June 1st, 2019

    dankevin.docot @ yahoo dot com

    please ICND1 dumps

  69. jamil
    June 12th, 2019

    please send icnd1 and 2 latest dumps to jamil.cheaib(@)icloud.com

  70. Slas
    June 20th, 2019

    hi could anyone be generous enough to send the latest dump or any study material for icnd1 and 2, I have exams booked in 3 weeks time. bastee79 @ yahoo. co. uk

    Thank you

  71. Anonymous
    August 22nd, 2019

    please send the latest dumps to warlockg14 @ gmail com

  72. Wheaties
    October 11th, 2019

    I gotta take a dump

  73. inslution
    December 5th, 2019

    Can you help me!
    where is the question???

    Thanks!

  74. Anonymous
    December 6th, 2019

    Would someone be able to send me the ICND 1 dump? I would really appreciate it.
    troublesumlu @ gmail .com

  75. ZAMAN
    December 23rd, 2019

    ICND1 DUMPS PLZ

Comment pages
1 2 322