DHCP Group of Four Questions
Refer to the exhibit. Using the information shown, answer the question
Question 1:
All hosts in the networks have been operational for several hours when the DHCP server goes down. What happens to the hosts that have obtained service from the DHCP server?
A – The hosts will not be able to communicate with any other hosts.
B – The hosts will continue to communicate normally for a period of time.
C – The hosts will be able to communicate with hosts outsides their own network
D – The hosts will only be able to communicate with other hosts by IP address not by hostname
Answer: B
Explanation:
DHCP often uses dynamic allocation mechanism to save IP addresses, which assigns an IP address to a client for a limited period of time. So when the DHCP server goes down, that client can still use the allocated IP address for a period of time
Question 2:
What is the purpose of the DHCP server?
A – to provide storage for email
B – to translate URLs to IP addresses
C – to translate IPv4 addresses to MAC addresses
D – to provide an IP configuration information to hosts
Answer: D
Explanation:
The main purpose of the DHCP server is to provide IP configuration parameters to hosts such as the default gateway, domain name, Domain Name System (DNS) server…
Question 3:
How is the message sent from a PC2 when is first powers on and attempts to contact the DHCP Server?
A – Layer 3 unicast
B – Layer 3 broadcast
C – Layer 3 multicast
D – Without any Layer 3 encapsulation
Answer: B
Explanation:
When a client boots up for the first time, it transmits a DHCPDISCOVER message on its local physical subnet. Because the client has no way of knowing the subnet to which it belongs, the DHCPDISCOVER is an all-subnets broadcast (destination IP address of 255.255.255.255, which is a layer 3 broadcast address). The client does not have a configured IP address, so the source IP address of 0.0.0.0 is used.
Question 4:
What is the default behavior of R1 when PC1 requests service from DHCP server?
A – Drop the request
B – Broadcast the request to R2 and R3
C – Forward the request to R2
D – Broadcast the request to R2, R3 and ISP
Answer: A
Explanation:
When PC1 requests service from DHCP server (for example, it requests an IP address), it sends a broadcast packet. But R1 router, by default, will not forward broadcast packet and drop it.
For your information, if you want to use the DHCP server from another network (like in this case) you can use the ip helper-address command which will make the router forward UDP broadcasts.
In the real exam you will be taken to a LAB simulation environment but it is, in fact, just a group of 4 multi-choice questions!
Hi,
Sanjeev here need to no is there any who has appeared the exam recently i.e in Jan 2012,
Bcoz i heard that Fees has been increased and there are 5 SIM’s.Wanted to know the pattern and marks allotted for SIM.
Please could anybody tell me. Mail me at sanjeevhaveri@gmail.com
Thanking You,
Yes fee has been increased to 295 but I only seen 2 sims
Hi
I m planning to gv it next week. Plz update me on any changes.
Is thr any change in thr pattern ?
Hi
I m planning to gv it next week. Plz update me on any changes.
Is thr any change in the pattern ?
Given that Host A and Host B are in different networks. When Host A is trying to communicate with
Host B, which step will Host A take first?
Given that Host A and Host B are in different networks. When Host A is trying to communicate with
Host B, which step will Host A take first?
A. Send a TCP SYN and wait for the SYN ACK with the IP address of Host B.
B. Drop the data.
C. Create an ARP request to get a MAC address for Host B.
D. Send the data frames to the default gateway.
@deleted
D – send the frames to the default gateway
@xallax
I’m little bit confused with this kind of questions.
I understand that best answer would be D–send the frames to the default gateway,
but how should we know if host A has been already communicating with host B (and in that case, A knows destination MAC address)?
@jelenna
the pc just does a comparison at the network layer.
my IP is on this network. their IP is on that network.
knowing that, the pc sends the frames towards the default gateway straight away.
the pc doesnt not have to know the MAC of the destination pc.
MACs are used on the same network, IPs are needed to get from one network to another
****
ok, tell you what. if you’re running windows then…
hold the windows key (between ctrl and alt on most keyboards) and press R
now type in “cmd”, press enter
a black ms-dos-ish window appears.
type in “arp -a” and hit enter
this command displays the known MACs for all the devices on the local network that your computer “talked” to.
you will for sure not see the MAC of the server on which this website is hosted :)
computers dont need MACs to talk to one another if they’re not on the same network.
@xallax
Thanks on your explanation, now it’s clear.
Hi 9tut… Hi Guys! Can you please help me… I will take exam this Feb. Please send me latest dump so that I will have an idea for the exam.. rico.blake@ymail.com
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Hi…
Can you please send me the latest CCNA Q paper to ma mail id so that i could prepare . I’m planning to take the exam in 1 or 2 months
My mail id is kmvenkatesh04@gmail.com
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In Exam, can we use the TAB for complete the command or can we use ? for the next field in command. Guys Kindly reply..as I am going for Examintaions
@Arpit
yes, you’ll be able to use tab
Hi guys. I need the lastest dump plz, take the ccna exam this week.
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My email id is jjames@datec.com.pg
Thanks Guys!
Hey everyone,
Wondering if anyone has the most current dumps. If so, I’d greatly appreciate it if you could share them with me. Please email me at toydawg@earthlink.net
Thank you 9tut for such a great site! Donated!
Hello All,
Can anybody please share the latest dumps for CCNA, a prompt response would be highly appreciated.
Regards,
you can get latest dumps On Examcollection.com
By Darani & collisio :)
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Which command will show the MAC addresses of stations connected to switch ports?
A. show mac-address
B. show arp
for this question correct answer is A or B. Pls. explain me.
thanks
show mac-address in a switch will give list of all mac learned so far
Hi 9tut..!!
I have my ccna exam on next week….kindly let me know if any recent changes have occured in the exam pattern.
Hi 9itut,
Please send me any latest material for the CCNA. I will be taking my test in March. My email address is Basmac@usa.com. I look forward and I really appreciate for all the materials you are providing for us
A. is correct (show mac adddress) while B. show arp is used on routers
sam,
nothing has changed in 9tut i did my CCNA on 22 Feb-2012 and i passed
I have passed CCNA exam today, 947 out of 1000, EIGRP, ACL, VTP Labs are the same, just IP’s were changed. ACL lab was the same as one of the scenarios mentioned on this site. TAB is not working, so you should memorize commands.
ALL questions from DHARANI and Collisio dumps:
2 question – IP6
around 4 questions – Wireless
2 questions – subnetting
around 8 questions – EIRGP, OSPF, RIP, FrameRelay
around 8 questions – STP, RSTP, switching
around 5 – VLANs, trunking
around 12 questions – routing, NAT
1 question VPN
3 questions ACL
Thank you 9tut ))
Hi yamacasy..
I am giving CCNA exam on 27th February 2012..
Is ‘?’ is allowed to be used for labs?
And can you tell me any specific question or a topic which was asked in exam and which you thought was totally different from what 9tut has..
I really tensed for this exam.
Thankyou..
i have passed exam ccna with 881 grad in 25-2-2012
and the lab 100% samething
To V:
? didnt work in the labs, you’d better learn full commands syntax )
In the EIGRP lab I had to add all R3 networks to R1 to get successful ping from R3 to ISP.
All questions in the exam were from DHARANI and Collisio dumps and 9tut.com, even answers
to these questions were totally the same.
Dont worry,
exam is easier than the preparation itself )
have a doubt about the question 3 and 4
in the question three the client boots and sends the DHCP DISCOVER message (255.255.255.255) which is flooded broadcast.so how the router forwards this broadcast.
in the question 4 the router doest forward broadcast request!!!
will u please explain how the client is obtaining the ip address for the first time when it boots!!
@hello If the client is in the same network than it will use ARP to find the mac-address of the destination client whereas if the two devices are in different network then the device will forward the packets to the default-gateway which is usually a layer3 device such as a router
please send me latest ccna brain drums iam planning to take exam next month
how many marks will be the simulation in ccna exam
when a device boots first time it sends the request to the router and then the router sends the broadcast message to the “ip helper address” configured on the router…. if not configured then it will drop the packet….
do TAB works in CISCO exam simulator or not? please help.
Tab does work in the simulators on the exam.
hello!folks i will be writing ma exams on the 29th march, and can anyone of u send me de latest dump for practice,thnk you all .Ma email address:josephboadi@gmail.com and i will be much appreciated
Hi All,
all set for tomorrow, if anyone has any dumps for the icnd2, i would appreciate it, i failed twice so far. i would love to be cert by tomorrow ;o)
insanity231@gmail.com
thx and good luck to all
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You guys should stop posting your emails lol, on examcollection.com you will find all the dumps you need ;)
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Hi All,
Am taking my exam tmrw. Pls let me know the latest sim questions if anyone has taken the exams most recently.
Rajesh April 4th, 2012 Hi All,
Am taking my exam tmrw. Pls let me know the latest sim questions if anyone has taken the exams most recently.
Many Thanks,
Great, thanks for your share!
@2012-04-15 17:08
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HHIS I souhld have thought of that!
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