ICND1 – Basic Questions
[am4show have=’p2;’]
Premium Member: You can test your knowledge with these questions first via this link.
[/am4show]
Question 1
[am4show have=’p2;’]Which two statements describe the operation of the CSMA/CD access method? (Choose two)
A. In a CSMA/CD collision domain, multiple stations can successfully transmit data simultaneously.
B. In a CSMA/CD collision domain, stations must wait until the media is not in use before transmitting.
C. The use of hubs to enlarge the size of collision domains is one way to improve the operation of the CSMA/CD access method.
D. After a collision, the station that detected the collision has first priority to resend the lost data.
E. After a collision, all stations run a random backoff algorithm. When the backoff delay period has expired, all stations have equal priority to transmit data.
F. After a collision, all stations involved run an identical backoff algorithm and then synchronize with each other prior to transmitting data.
Answer: B E[/am4show]
Explanation
CSMA/CD stands for Carrier Sense Multiple Access with Collision Detection. In an Ethernet LAN, before transmitting, a computer first listens to the network media. If the media is idle, the computer sends its data. If the media is not idle (another station is talking), the computer must wait for some time.
When a station transmits, the signal is referred to as a carrier. Carrier Sense means that before a station can send data onto an Ethernet wire, it have to listen to see if another “carrier” (of another station) is present. If another station is talking, this station will wait until there is no carrier present.
Multiple Access means that stations can access the network at any time. It is opposed to Token-Ring network where a station must have the “token” so that it can send data.
Although Carrier Sense help two stations not send data at the same time but sometimes two stations still send data at the same time! This is because two stations listen for network traffic, hear none, and transmit simultaneously -> a collision occurs and both stations must retransmit at some later time. Collision Detection is the ability of the media to detect collisions to know that they must retransmit.
Basically, the CSMA/CD algorithm can be summarized as follows:
+ A device that wants to send a frame must wait until the LAN is silent (no one is “talking”)
+ If a collision still occurs, the devices that caused the collision wait a random amount of time and then try to send data again.
Note: A switch separates each station into its own collision domain. It means that station can send data without worrying its data is collided with the data of other stations. It is as opposed to a hub which can cause collision between stations connected to it.
Question 2
[am4show have=’p2;’]On a live network, which commands will verify the operational status of router interfaces? (Choose two)
A. Router#show interfaces
B. Router#show ip protocols
C. Router#debug interface
D. Router#show ip interface brief
E. Router#show start
Answer: A D[/am4show]
Explanation
Only two commands “show interfaces” and “show ip interface brief” reveal the status of router interfaces (up/up, for example).
The outputs of two commands are shown below:
Question 3
[am4show have=’p2;’]What must occur before a workstation can exchange HTTP packets with a web server?
A. A UDP connection must be established between the workstation and its default gateway.
B. A UDP connection must be established between the workstation and the web server.
C. A TCP connection must be established between the workstation and its default gateway.
D. A TCP connection must be established between the workstation and the web server.
E. An ICMP connection must be established between the workstation and its default gateway.
F. An ICMP connection must be established between the workstation and the web sewer.
Answer: D[/am4show]
Explanation
HTTP is based on TCP connection so a TCP connection must be established first between the workstation and the web server.
Question 4
[am4show have=’p2;’]Refer to the exhibit. If the hubs in the graphic were replaced by switches, what would be virtually eliminated?
A. broadcast domains
B. repeater domains
C. Ethernet collisions
D. signal amplification
E. Ethernet broadcasts
Answer: C[/am4show]
Explanation
Hubs do not separate collision domains so if hub is used in the topology above, we will have only 1 collision domain. Switches do separate collision domains so if hubs are replaced by switches, we would have 22 collision domains (19 collision domains for hosts and 3 collision domains among three switches. Please notice that the WAN (serial) connection is not counted as a collision (or broadcast) domain.
Question 5
[am4show have=’p2;’]If a host experiences intermittent issues that relate to congestion within a network while remaining connected, what could cause congestion on this LAN?
A. half-duplex operation
B. broadcast storms
C. network segmentation
D. multicasting
Answer: B[/am4show]
Explanation
A broadcast storm can cause congestion within a network. For more information about broadcast storm please read my STP tutorial.
Question 6
[am4show have=’p2;’]Refer to the exhibit. The network administrator is testing connectivity from the branch router to the newly installed application server. What is the most likely reason for the first ping having a success rate of only 60 percent?
|
Branch# ping 192.168.2.167 Branch# ping 192.168.2.167 |
A. The network is likely to be congested, with the result that packets are being intermittently dropped.
B. The branch router had to resolve the application server MAC address.
C. There is a short delay while NAT translates the server IP address.
D. A routing table lookup delayed forwarding on the first two ping packets.
E. The branch router LAN interface should be upgraded to FastEthernet.
Answer: B[/am4show]
Explanation
Before a host can send ICMP (ping) packets to another device, it needs to learn the MAC address of the destination device so it first sends out an ARP Request. In fact, the first ping packet is dropped because the router cannot create a complete packet without learning the destination MAC address.
Question 7
[am4show have=’p2;’]An administrator is in the process of changing the configuration of a router. What command will allow the administrator to check the changes that have been made prior to saving the new configuration?
A. Router# show startup-config
B. Router# show current-config
C. Router# show running-config
D. Router# show memory
E. Router# show flash
F. Router# show processes
Answer: C[/am4show]
Explanation
The “show running-config” command displays active configuration in memory.
Question 8
[am4show have=’p2;’]What does a host on an Ethernet network do when it is creating a frame and it does not have the destination address?
A. drops the frame
B. sends out a Layer 3 broadcast message
C. sends a message to the router requesting the address
D. sends out an ARP request with the destination IP address
Answer: D[/am4show]
Question 9
[am4show have=’p2;’]Which IOS command is used to initiate a login into a VTY port on a remote router?
A. router# login
B. router# telnet
C. router# trace
D. router# ping
E. router(config)# line vty 0 5
F. router(config-line)# login
Answer: B[/am4show]
Question 10
[am4show have=’p2;’]Which three statements are true about the operation of a full-duplex Ethernet network? (Choose three)
A. There are no collisions in full-duplex mode.
B. A dedicated switch port is required for each full-duplex node.
C. Ethernet hub ports are preconfigured for full-duplex mode.
D. In a full-duplex environment, the host network card must check for the availability of the network media before transmitting.
E. The host network card and the switch port must be capable of operating in full-duplex mode.
Answer: A B E[/am4show]
Explanation
Full-duplex communication allows both sending and receiving of data simultaneously. Switches provide full-duplex communication capability. Half-duplex communication only allows data transmission in only one direction at a time (either sending or receiving).
Can you please send CCNA 200-120 to {email not allowed} or ICND1&2 dumps. Thank you
people asking for dumps, go look up “ccna opencourser” on google. thank me later.
people asking for dumps, go look up “ICND1 opencourser” on google** (corrected past comment for error)
please send ICND 1/2 dumps to cratermud at gmail…. thanks!
please forward dumps to jeremy t johnson 14 at gmail THANK YOU
please please icnd1 dump
Please can you foward the ICND 1 dumps to my mail ? alexioscharistos at hotmail dot com
exams in 10 days !!
please send icdn1 dumps to {email not allowed}
Please send ICND1 dumps to juniorcoloma@ yahoo.com
can anyone forward dumps for ccna 200-125 exam? {email not allowed}
Can anyone please send the ICND1 dump to mayor-christ @ web.de ? Thanks
can anyone help out a recently separated veteran and send latest dump to youngmarine1 ___gmail.com. I need the icnd1 and icnd2 dumps
Can anyone please send recent ICND1 dump to ccentcert479 “@” gmail.com Thank you
can you send the ICND1 dumps to ruiz_j27 “@” yahoo.com ? Thanks
Can you send the ICND1 dump to skyline951 “@” hotmail dot com? Thank you
please send ICND 1/2 dumps to {email not allowed}
thanks!
please send ICND1 Questions drekthar 2 9 @ g mai l . co m Thank you
Please send icnd1 questions cryptulae08 @ gmail . Com
please send ICND1 Questions vonhalrius @ gmail . com
Taking the exam on tuesday can anyone help me please, by sending me ICND1 dump cryptulae 08 @ gmail .com
Could you send the ICND1 dump to jcam6543 “@” gmail dot com?
Can you please also send me dumps for CCNA200-125 at {email not allowed}
Thanks
Can you please also send me dumps for CCNA200-125 at nairshijin @ gmail .com
Can you please send me the dumps for ICND1 questions.. ileugimix @ gmail . com
Can you please send me the dumps for ICND1 questions.. {email not allowed}
Thanks
Can you please send me the dumps for ICND1 questions.. Ojedejiabiola @ yahoo. Com
Thanks
can someone please send me icnd1 dump it like the one i have is not working {email not allowed}
Could you please send dumps for ICND 1 and ICND 2 … acute861103 @ gmail.com
Thanks.
Hi there, would anyone do me a huge favor and send me the dumps for exams 100-105 and 200-125 on gmcastro at gmail dot com?
Cheers
could i please get the latest dumps for ICND1 questions… troublesumlu @ gmail . com
Can Someone send me the latest dump for ICND1
Much Appreciated !
Asvq08 at Gmail dot COM
Can Someone send me the latest dump for ICND1 100-105
Much Appreciated
bankole44love at yahoo dot com
send me the dump
my test is in 3 days maiahziad (@) gmail . com
ICND1 100-105 and ICND2 200-105
fishingforjimbo (@) outlook . com
Correction
fishingforjimbo1 (@) outlook . com
Send me the dump for ICND1 questions galliamovrr @ gmail . com
Much Appreciated !
Can Someone send me the latest dump for ICND1 {email not allowed}
Can Someone send me the latest dump for ICND1 mohamedyousfiasri @ gmail . com
Can someone please send latest dump for icnd1 and icnd 2 please I desperately need it miguelmontielg @ gmail . com
Help please with icnd1 100-105 and icnd2 200-105
inceibasa @ gmail . com
can someone send me latest dumps for icnd1 & 2 to {email not allowed}
can someone send me latest dumps for icnd1 & 2 ongdeelama at gmail
Hi guys can someone please send the latest dumps icnd1 &2 to email {email not allowed}
ashlee.parker01 @ gmail .com Please send braindumps for icnd1 100-105 and icnd2 200-105.
Cheers.
If at all possible I would would really be great-full if anyone could send me the latest dump for icnd 1 & 2… skimpysossa at gmail .com
Can Someone send me the latest dump for ICND1 minhaz.taher @ gmail . com
Hi,
Please can someone send me the latest dump for ICND1 at {email not allowed}
Thank you!
can you send the latest icnd1 dump to cvnakyg @ gmail please
Can someone please send latest dump for icnd1 and icnd 2 please I desperately need it rakhiray222 @ yahoo.com
Stop asking for dumbs, what do you think this website was built for
can you send the latest icnd1 dump to lianblue87 @ gmail . com please
Can you pls send the brain dumps for icnd1100-105 & 2 200-105 dmvwinners at gmail .com
Can someone please send me latest dumps for CCNA200-125 {email not allowed}
Can someone please send me the latest ICDNI dump to {email not allowed} please.
Can someone please send me the latest ICDNI dump to michael.sessions @gmail.com please.
Can someone please send me the latest ICDNI dump to michael.sessions @icloud.com please.
Can someone please send me the latest ICDNI dump to michael.sessions @yahoo.com please
Umm – how do i view the questions? 🙂
Hello, very good.
Can someone please send me the latest ICDNI dump to {email not allowed}
Can someone please send me the latest ICDNI dump to muku747 at gmail
please send ICND1 dump to {email not allowed}. Thanks!
please send ICND1 dumps to ankerAD9 at gmail. Thanks!
Please send ICND1 dump to indycharlotte at gmail. Thank you!!!
can some one send icnd 1 dumps at qasim.iqbal.awan (@) gmail.com
Hi can pls send ICND1 dumps at bobbytcy.hw @ gmaildotcom thanks in advance!
Can Someone send me the latest dump for ICND1 adn ICDN2 sinandyilmaz@ gmail.com
Hello, can someone send me the latest ICND1 dump to rei.dardha at yahoo dot com please. Thank you very much!
can you dand me dump icnd1 to my mail raoufkhh1(@)gmail(.)com
Can you please email 1 and 2 dumps to 0ddhakr@ gmail.com 0=zero
Can someone email 1 and two dumps to {email not allowed} I have to pass the test in two weeks. Please.
Can someone email 1 and two dumps to dc5k20k24@ hotmail .com I have to pass the test in two weeks. Please.
send icnd1 and icnd2 dumps to sebastianrod04 @gmail.com
Can someone send the latest dumps for ICND1 & ICND2 to {email not allowed} please?
OK, I’m an idiot
Can someone send the latest dumps for ICND1 & ICND2 to shadowfunhaus (@) outlook.com please?
Can someone send latest icnd1 and icnd2 dumps to matthewsmith91696 at gmail com
send icnd1 and icnd2 dumps to cybercert69 @gmail.com please. thank you in advance
send icnd1 and icnd2 dumps to cybercert69 @ gmail com please. thank you in advance
Can people please stop being idiots and asking for dumps?
Instead, help each other out by posting your CCENT/CCNA questions!
Can someone please send me the dumps itsayushigupta( @ )gmail (. )com ICND1 dumps and ICND2
If at all possible I would really be great-full if anyone could send me the latest dump for icnd 1 & 2… itsayushigupta at gmail .com
Can someone please send me the latest dumps for icnd 1and icnd 2 at mnml10387 at yahoo.com thank you
Can someone please send ICND1 dumps
Email: shahzainr @ gmail dot com
Thank You Very Much
Has anyone taken the test lately? If so how did you do and what questions did you have challenges with? Please provide examples if possible.
Can someone please send me the latest dumps for icnd 1and icnd 1 at bankole44love at yahoo.com thanks and God bless you. having the exam on Friday.
Can someone please send me the latest dumps for icnd 1and icnd 2 at {email not allowed}
THanks!!
Hi, can anyone send the ICND1 dump at shahed_hussain (@) outlook(.)com?
Can anyone send me Latest Version Dump Questions for ICND1 @ {email not allowed}
Can anyone send me Latest Version Dump Questions for ICND1 @ ( icetek8526522 @ gmail . com )
Can you send the ICND1 dump to mail at sitepara dot de? thank you very much
Is there anybody have valid questions for ccent exam? If yes, please sent to ziutenio at Gmail
Thanks a lot and good luck!
Lets get some information bout your exam score and how mamy questions were helpful.
Can anyone send me Latest Version Dump Questions for ICND1 @ ( roxorloox @ gmail . com )?
Hello, 9tut can you please check the answer for question no 1 its here B,E I think it should be B,D I may be wrong can you please double check. Thank you.
Can someone please help me out and send ICND 1 and 2 dumps to me at {email not allowed}.
Thanks in Advance. Much appreciated.
Can someone please help me out and send ICND 1 and 2 dumps to me at {harshorhappy @ gmail . com}.
Thanks in Advance. Much appreciated.
I need ICND1 and ICND2 dumps as well please! Email is joestevens9211 @ gmail . com
Hello, may someone send me the latest dumps for icnd1 and icnd2 please!? Email is s.tabala @ .com
Could some awesome person send me ICND1 and ICND2 (if you have both) braindumps please 🙂 . My email is justincollins024 @ gmail . com
Please send me the ICND1 Dumps please, would really appreciate it .
email muntasiralam85 @ g mail.com
Really need to do the CCNA before the new one released. Can someone help with some dumps? @ adeel samsung @ gmail . com