CCNA – IP Address Questions
Here you will find answers to IP Address Questions
Question 1
Which IP address can be assigned to an Internet interface?
A. 10.180.48.224
B. 9.255.255.10
C. 192.168.20.223
D. 172.16.200.18
Answer: B
Explanation
The IP address which can be assigned to an Internet interface is a public IP address. Private IP address are found in the following ranges:
* From 10.0.0.0 to 10.255.255.255
* From 172.16.0.0 to 172.31.255.255
* From 192.168.0.0 to 192.168.255.255
Also some special IP addresses (like the local loopback address 127.0.0.1, multicast addresses…) can’t be assigned to an Internet interface.
In this question only answer B doesn’t belong to the range of private IP address -> B is the correct answer.
Question 2
What will happen if a private IP address is assigned to a public interface connected to an ISP?
A. Addresses in a private range will be not routed on the Internet backbone.
B. Only the ISP router will have the capability to access the public network.
C. The NAT process will be used to translate this address in a valid IP address.
D. Several automated methods will be necessary on the private network.
E. A conflict of IP addresses happens, because other public routers can use the same range.
Answer: A
Question 3
When is it necessary to use a public IP address on a routing interface?
A. Connect a router on a local network.
B. Connect a router to another router.
C. Allow distribution of routes between networks.
D. Translate a private IP address.
E. Connect a network to the Internet.
Answer: E
Question 4
When a DHCP server is configured, which two IP addresses should never be assignable to hosts? (Choose two)
A. network or subnetwork IP address
B. broadcast address on the network
C. IP address leased to the LAN
D. IP address used by the interfaces
E. manually assigned address to the clients
F. designated IP address to the DHCP server
Answer: A B
Explanation
Network or subnetwork IP address (for example 11.0.0.0/8 or 13.1.0.0/16) and broadcast address (for example 23.2.1.255/24) should never be assignable to hosts. When try to assign these addresses to hosts, you will receive an error message saying that they can’t be assignable.
Question 6
The network administrator has asked you to check the status of the workstation’s IP stack by pinging the loopback address. Which address would you ping to perform this task?
A. 10.1.1.1
B. 127.0.0.1
C. 192.168.0.1
D. 239.1.1.1
Answer: B
Explanation
The IP address of 127.0.0.1 is the well-known loopback IP address on a computer. When try pinging this address, you are testing if the TCP/IP stack is working or not.
Question 7
Which command is used to see the path taken by packets across an IP network?
A. show ip route
B. show route
C. traceroute
D. trace ip route
Answer: C
Explanation
Notice that “traceroute” is the command used on a Cisco router while the “tracert” is the command used in MSDOS of Windows. They have the same purpose of finding the path that packets use to reach a destination network.
Question 8
Refer to the exhibit. Which value will be configured for Default Gateway of the Local Area Connection?
A. 10.0.0.0
B. 10.0.0.254
C. 192.223.129.0
D. 192.223.129.254
Answer: B
Explanation
The default gateway IP address must be on the same network with the configured host’s IP address and not is the network or broadcast address -> B is correct.
Question 9
Which of the following describe private IP addresses? (Choose two)
A. addresses chosen by a company to communicate with the Internet
B. addresses that cannot be routed through the public Internet
C. addresses that can be routed through the public Internet
D. a scheme to conserve public addresses
E. addresses licensed to enterprises or ISPs by an Internet registry organization
Answer: B D
Question 10
Refer to the exhibit. A network technician is asked to design a small network with redundancy. The exhibit represents this design, with all hosts configured in the same VLAN. What conclusions can be made about this design?
A. The design will function as intended
B. Spanning-tree will need to be used.
C. The router will not accept the addressing scheme.
D. The connection between switches should be a trunk.
E. The router interfaces must be encapsulated with the 802.1Q protocol.
Answer: C
Explanation
Each interface on a router must be in a different network. If two interfaces are in the same network, the router will not accept it and show error when the administrator assigns it.
What is the use of subnet-zero command ???
@z
don’t forget that the topology described is illegal! you can not have 2 router interfaces on the same network or subnet.
i stand my ground: if there was just a single connection then there was no point in using STP when there are only 2 switches on the topology
@eng-support
it allows us to use the first and last subnets of a classful network. on old IOS versions you couldn’t use those unless you typed in “subnet-zero”
@ xallax
what if we hv d/t network or subnet on Q 10…answer wll b B?
@z
d/t? what’s that?
@ xallax
what if we have different network or subnet on Q 10.
lets say between switch 1 and router we have 192.168.1.1/24 and
192.1682.2/24 between router and switch 2.
wqill the answer wll be B?
@z
well… if you were to use 2 networks on this topology then you would still need the router for L3 interconnectivity.
the link between the switches would be needed if you had hosts distributed on both switches.
say hosts 1, 3 and 6 on 192.168.1.0/24 and
hosts 2, 4 and 5 on 192.168.2.0/24
this scenario would imply the use of a trunk link between the switches
if you had hosts 1,2,3 connected to a switch and 4,5,6 to the other then i see no point in keeping that link between the switches as the router connects everything together.
it’s a tricky question and needs a bit of thinking
@xallax
thanks alot. i appreciate ur help.
N plz if u have a link on discontinuous networks or some explanation .
Someone please send me the most recent dump. I am certifying in a weeks time!
send it to
Can someone please send me the latest dumbs please at rmoreno14@yahoo.com
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hi,if the public ip address range only from 9.x.x.x and below.what do you call the ip address given by ISP to their client?
Hi, I am planning to take the exam this January, can someone please send me the latest dump at ba2saijon@yahoo.com Thanks in advance.
Hi, I am planning to take the exam this January, can someone please send me the latest dumpand simulations send to my friend mail maraainfo@gmail.com Thanks in advance.
FYI there’s no #5.
so is the CCNA composite exam ONLY a multi choice and not a multi choice + config simulations?
Hi, I am planning to take the exam next month, can someone please send me the latest dumpand simulations send to my mail at emashiloane@gmail.com Thanks in advance
Hi, I am planning to take the exam next month, can someone please send me the latest dump and simulations send to my mail at nitinstu@yahoo.co.in Thanks in advance
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
Thanks Guys!
@xallax
Hi. Can you help me with this in class A.
I am working with network 37.0.0.0 you need to allow at leat 500 host per subnet, you can have as many subnet as possible without exceeding 1000 subnets . waht is the best subnet. The answer is 255.255.128.0 I can get it
500 host = 2^9 = 512-2=510 ok for at least 500 host meaning 9 zeros if I put it will be like this:
255.255. 1111 1110 0000 0000
but it will gave me for subnets 2^15= 32768 is over of the 1000 subnet
If I look the answer 255.255.128.0 It will be 9 ones 2^9 = 512 i guest is not exeeding 1000
How you get this answer?
can someone send me the latest CCNA dumps for exam … eosawe2002@yahoo.com
@cp
37.0.0.0… class A.
you want 500 hosts per network. at least 500
i am not allowed to have more than 1000 subnets.
if i am allowed to go as up as 1024 subnets then my answer is:
10 bits for subnetting, 8 bits untouchable since this is a class A network, that totals to 18 bits.
32-18 = 14 bits for hosts (a lot!). this give 16k hosts per subnet…
so… the subnet mask is 255.255.192.0
if i am not allowed to exceed the number 1000 then i will choose to have 512 subnets.
9 bits for subnetting, 8 for the class, totals to 17.
32-17 = 15 bits for hosts, 32k hosts per subnet… still a high number
subnet mask: 255.255.128.0 is the number (as you concluded too)
in real life i’d go for my first answer (up to 1024). on a cisco exam… i’d go for your answer (255.255.128.0 as the subnet mask)
thanks for asking, have a snowy weekend :)
Hi everyone, can anyone help me please.. I’ll be having my exam this feb 15. Please send me the latest dump of the exam if you have. Appreciate much. here is my email add: dlanz19@yahoo.com
Dear xallax
Thank you so much. I can see is a common sense. I guessed that is my weakness, go around instead at looking more straight forward to it. I am in Australia so it has been raining yesterday and now very sunny. I have been snowy just study :-).
I hope you have a nice weekend too.
No question 5.
i have exam…on 13th Feb can someone send the dumps: zakir_hamdard@yahoo.com
latest dumps :-
http://www.examcollection.com/cisco/Cisco.PrepKing.640-802.v2012-01-03.by.DHARANI.615q.vce.file.html
&
http://www.examcollection.com/cisco/Cisco.Acme.640-802.v2011-07-09.by.Collisio.486q.vce.file.html
What is the use of “ip subnet-zero” command plz explain with a example
Dear Isuru,
Ip subnet-zero is a command which is on by default in the latest IOS. You can disable by no ip subnet-zero. If it is diasabled you cannot use first and last subnet.
e.g if you subnet a network with /26 you borrowed extra 2 bits from hosts field and you can create 4 subnets. 0, 64, 128, 192 If ip subnet-zero is disabled you are only allowed to use 2 subnets instead of 4. You have only 64 and 128.
The rule is if disabled we are not allowed to use first and last subnets.
Cheers
dear Sameeer
Tnx for the explanation
regards
Hi All
plz refer the link
http://s1153.photobucket.com/albums/p518/isuru888/?action=view¤t=nwd.jpg
1.what is the wide Mask mention here
2. How to derive the answer for this question
there are three answers given by the dump but i;m not sure about the answer B and E
(each interface not require an unique ip address )
plz explain
regards
can someone send me the latest CCNA dumps for exam. Thanks! jeoalonzo@gmail.com
thanks 9tut..u r awesome!
can any one send me the latest ccna dumps thanks suchu_hai@yahoo.co.in
can any one send me the latesr dumps please at dileep_shardha@yahoo.com
Pleasenemail me the latest dump.
Cheers
Jazzyb60@hotmail.com
Please email the latest dump as I am going to take exam soon.
Thanks
jazzyb60@hotmail.com
Question 10
pls some one tell me what is the summarization? how can find out that proces.
pls give me feed back
@krishna
Basically, the idea behind Summarization is to reduce the size of the routing table.
Creating smaller routing tables makes the routing table lookup process more efficient, because there are fewer routes to search. If one static route can be used instead of multiple static routes, the size of the routing table will be reduced. In many cases, a single static route can be used to represent dozens, hundreds, or even thousands of routes.
We can use a single network address to represent multiple subnets. For example, the networks 10.0.0.0/16, 10.1.0.0/16, 10.2.0.0/16, 10.3.0.0/16, 10.4.0.0/16, 10.5.0.0/16, all the way through 10.255.0.0/16 can be represented by a single network address: 10.0.0.0/8. This is summarization.
I hope this help.
Hi
Thanks for all the advise…Can anyone please send the latest dumps……shriramvan@gmail.com
Thanks
Shriram
please send me the latest dump for my ccna…. please guys… arifgan63@yahoo.com
@ ovixx Download from http://www.examcollection.com
@Xallax please explain me Q.8.
I am not getting it…..
@snap
10.0.0.249 is the IP
255.255.255.0 is the subnet mask
the default gateway should be on the same subnet as this computer (10.0.0.1 ~ 10.0.0.254)
the only IP that verifies this condition is the one at option B: 10.0.0.254
Thank you so much guys for your discussion here,i find all my questions answered before i even ask about them.
Q2 was in today’s exam.