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CCNA – Basic Questions

June 1st, 2015 Go to comments

Question 1

Explanation

Organizational Unique Identifier (OUI) is the first 24 bits of a MAC address for a network device, which indicates the specific vendor for that device as assigned by the Institute of Electrical and Electronics Engineers, Incorporated (IEEE). This identifier uniquely identifies a vendor, manufacturer, or an organization.

Question 2

Explanation

Only router can break up broadcast domains so in the exhibit there are 2 broadcast domains: from e0 interface to the left is a broadcast domain and from e1 interface to the right is another broadcast domain -> A is correct.

Both router and switch can break up collision domains so there is only 1 collision domain on the left of the router (because hub doesn’t break up collision domain) and there are 6 collision domains on the right of the router (1 collision domain from e1 interface to the switch + 5 collision domains for 5 PCs in Production) -> F is correct.

Question 3

Explanation

From the exhibit we learn there are 4585552 bytes (over 4MB) available so it is only enough space for an IOS file of 4MB. If bigger file is copied then the existing IOS file will be erased (overwritten).

Question 4

Explanation

The Maximum Transmission Unit (MTU) defines the maximum Layer 3 packet (in bytes) that the layer can pass onwards.

Question 5

Explanation

Modern Ethernet networks built with switches and full-duplex connections no longer utilize CSMA/CD. CSMA/CD is only used in obsolete shared media Ethernet (which uses repeater or hub).

Question 6

Explanation

Ethernet network is a shared environment so all devices have the right to access to the medium. If more than one device transmits simultaneously, the signals collide and can not reach the destination.

If a device detects another device is sending, it will wait for a specified amount of time before attempting to transmit.

When there is no traffic detected, a device will transmit its message. While this transmission is occurring, the device continues to listen for traffic or collisions on the LAN. After the message is sent, the device returns to its default listening mode.

So we can see C and D are the correct answers. But in fact “answer C – when they detect no other devices are sending” and “when the medium is idle” are nearly the same.

Question 7

Explanation

Physical addresses or MAC addresses are used to identify devices at layer 2 -> A is correct.

MAC addresses are only used to communicate on the same network. To communicate on different network we have to use Layer 3 addresses (IP addresses) -> B is not correct; E is correct.

Layer 2 frame and Layer 3 packet can be recognized via headers. Layer 3 packet also contains physical address -> C is not correct.

On Ethernet, each frame has the same priority to transmit by default -> D is not correct.

All devices need a physical address to identify itself. If not, they can not communicate -> F is not correct.

Question 8

Explanation

The following locations can be configured as a source for the IOS image:
+ Flash (the default location)
+ TFTP server
+ ROM (used if no other source is found)

Question 9

Question 10

Explanation

When you turn the router on, it runs through the following boot process.

The Power-On Self Test (POST) checks the router’s hardware. When the POST completes successfully, the System OK LED indicator comes on.
The router checks the configuration register to identify where to load the IOS image from. A setting of 0×2102 means that the router will use information in the startup-config file to locate the IOS image. If the startup-config file is missing or does not specify a location, it will check the following locations for the IOS image:

1. Flash (the default location)
2. TFTP server
3. ROM (used if no other source is found)

The router loads the configuration file into RAM (which configures the router). The router can load a configuration file from:

+ NVRAM (startup-configuration file)
+ TFTP server
If a configuration file is not found, the router starts in setup mode.

Comments (16) Comments
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  1. sangam
    December 11th, 2016

    Please send me latest dump questions. {email not allowed}

  2. Meriana
    December 13th, 2016

    I recommended http://www.grades4sure.com/200-001-exam-questions.html ! I passed my CCNA VideoCisco Certified Network Associate Video 200-001 exam yesterday with the score 96%. You can try the demo before you pay for the order. 100% money back guarantee. You will lose nothing.

  3. aaa
    December 19th, 2016

    Is new ccna is available icnd

  4. aaa
    December 19th, 2016

    please letme kn ow about new ICND 2 had been posted on 9tut.

  5. Tanzir
    December 20th, 2016

    Passed the CCNA! I had to take the CCNA twice, as I failed on my first attempt. However for my second, I used the e8ay dump to study the update that happened for the CCNA and passed the exam finally :D All Questions came from the dump. The e8ay dump has a total of 142 questions (58 + 84 updated questions) and the 4 variations of the ACL sims. I didn’t check out the study materials here but they seem helpful stated from other comments.

    Information to the exam:

    54 MC Questions
    1 ACL simulation
    1 EIGRP TSHOOT Simlet
    1 OSPF TShoot Simlet
    1 RIPv2 Simlet
    Total of 58 questions.

    If you would like to check out the materials I used, here you go:

    e 8 a y (dot) c o m / i t m / 2 0 0 – 1 2 5 – v 3 – 0 – D u m p – / 3 2 2 3 3 6 7 8 2 5 2 6 ?
    (change the “8” to a “b” with no spaces)

    Good Luck!

  6. Konami
    December 23rd, 2016

    Hello Tanzir….can I get d site you used to practise, please?

  7. Anonymous
    December 28th, 2016

    thank you so much for you support

  8. blacky
    January 2nd, 2017

    Dear Tanzir can you please share the dumps for 200-125

  9. fadi
    January 3rd, 2017

    could anyone please share questions of the dumps on this site or latest dumps from any site.

    MAny Thanks

  10. Anonymous
    January 5th, 2017

    CCNP Interview Questions and Answers for Freshers. Visit this page http://asiteducation.com/ccnp-interview-questions/

    and for more information about this courses and training programme – visit http://asiteducation.com/ccna-training-in-bangalore/

  11. Ruber
    January 5th, 2017

    Passed the CCNA yesterday! I used the e8ay dump in particular posted by “Tanzir” and can attest that it is valid. Cheers!

  12. peternai
    January 9th, 2017

    Hi all,
    Can anyone pls tell me if i can get the questions from somewhere?

  13. small-boy114
    January 14th, 2017

    hi all of you how are you doing

  14. small-boy114
    January 14th, 2017

    i have a question
    i need it,s binary 117
    thanks
    to my gmail
    {email not allowed}

  15. Sessum
    January 17th, 2017

    eb8y link is valid above. Passed this morning!

  16. student
    January 19th, 2017

    Hello I’am new to here. Please tell me where the questions of this topic?

Comment pages
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