CCNA Access List Sim
Question
Answer and Explanation
Note: If you are not sure about Access-list, please read my Access-list tutorial. You can also download this sim to practice (open with Packet Tracer) here: https://www.9tut.com/download/9tut.com_CCNA_Access_List_Sim.zip
For this question we only need to use the show running-config command to answer all the questions below
Router>enable
Router#show running-config
Question 1
How can we fix the problem but only allow ping to work while disabling telnet?
A – Correctly assign an IP address to interface fa0/1
B – Change the ip access-group command on fa0/0 from “in” to “out”
C – Remove access-group 106 in from interface fa0/0 and add access-group 115 in.
D – Remove access-group 102 out from interface s0/0/0 and add access-group 114 in
E – Remove access-group 106 in from interface fa0/0 and add access-group 104 in
Answer: E
Explanation
Let’s have a look at the access list 104:
The question does not ask about ftp traffic so we don’t care about the two first lines. The 3rd line denies all telnet traffic and the 4th line allows icmp traffic to be sent (ping). Remember that the access list 104 is applied on the inbound direction so the 5th line “access-list 104 deny icmp any any echo-reply” will not affect our icmp traffic because the “echo-reply” message will be sent over the outbound direction.
Question 2
What will happen after issuing the command “ip access-group 114 in” to the fa0/0 interface?
A – Attempts to telnet to the router would fail
B – All traffic from the 10.4.4.0 network would be allow to go through
C – TCP and UDP traffic are not allowed to pass
D – Routing protocol updates for the 10.4.4.0 network would not be accepted from the fa0/0 interface
Answer: B
Explanation
From the output of access-list 114: access-list 114 permit ip 10.4.4.0 0.0.0.255 any we can easily understand that this access list allows all traffic (ip) from 10.4.4.0/24 network
Question 3
What will happen after issuing the command “access-group 115 in” on the s0/0/1 interface?
A – Hosts cannot connect to Router through s0/0/1
B – Telnet and ping would work but routing updates would fail.
C – FTP, FTP-DATA, echo, and HTTP traffic would work but telnet would fail
D – Only traffic from the 10.4.4.0 network would pass through the interface
Answer: A
Explanation
First let’s see what was configured on interface S0/0/1:
Recall that each interface only accepts one access-list, so when using the command “ip access-group 115 in” on the s0/0/1 interface it will overwrite the initial access-list 102. Therefore any telnet connection will be accepted (so we can eliminate answer C).
B is not correct because if telnet and ping can work then routing updates can, too.
D is not correct because access-list 115 does not mention about 10.4.4.0 network. So the most reasonable answer is A.
But here raise a question…
The wildcard mask of access-list 115, which is 255.255.255.0, means that only host with ip addresses in the form of x.x.x.0 will be accepted. But we all know that x.x.x.0 is likely to be a network address so the answer A: “no host could connect to Router through s0/0/1” seems right…
But what will happen if we don’t use a subnet mask of 255.255.255.0? For example we can use an ip address of 10.45.45.0 255.255.0.0, such a host with that ip address exists and we can connect to the router through that host. Now answer A seems incorrect!
Please comment if you have any idea for this sim!
I am new to taking Cisco exams. I have a question. In this sim, do we actually have to make the changes on the interfaces, like fa0/0 and apply the ip access-group 104 in and also make changes to the s0/0/1? Or do we just have to use the show run command to see the actual access-lists and answer the question? Let me know. Thanks
For access list 115, the subnet mask is supposed to be a wild card… so the syntax is not correct anyway. Or rather the mask would be 00000000.00000000.00000000.11111111 so that is not going to allow any host as the mask will not function for any address.
Question 3 What will happen after issuing the command “access-group 115 in” on the s0/0/1 interface? A. Hosts cannot connect to Router through s0/0/1
Explanation:
Recall that each interface only accepts one access-list, so when using the command “ip access-group 115 in” on the s0/0/1 interface it will overwrite the initial access-list 102. Therefore any telnet connection will be accepted (so we can eliminate answer C). B is not correct because if telnet and ping can work then routing updates can, too. D is not correct because access-list 115 does not mention about 10.4.4.0 network. So the most reasonable answer is A. But here raise a question… The wildcard mask of access-list 115, which is 255.255.255.0, means that only host with ip addresses in the form of x.x.x.0 will be accepted. But we all know that x.x.x.0 is likely to be a network address so the answer A: “no host could connect to Router through s0/0/1” seems right… But what will happen if we don’t use a subnet mask of 255.255.255.0? For example we can use an ip address of 10.45.45.0 255.255.0.0, such a host with that ip address exists and we can connect to the router through that host. Now answer A seems incorrect!
I hope this will results heplful to y´all
Guys, CISCO is making me crazy
questions 2 & 3 changed.
@Questions 2 & 3 changed on this lab. Hi can share what the new question is asking?
@Questions 2 & 3 changed on this lab. Pls share the questions that you saw.
I took the test today with Examcollection’s dump. I did not pass. I saw maybe 10% of the dump on the exam. But I did see this lab on the exam with all 3 questions word for word.
I mean 10% of the exam was in the dump.
Pinball.
Did you buy premium dump or download free?
I took the test yesterday with examcollection premium dumps and i did not pass, none of the questions in the dumps came out in the exam
I took the exam today and passed .This sim was in the exam.
this was one of the Q in the exam today
@Abu-Talha, was the SIM exactly the same as here ?
@olu forget these other dumps, l wasted money on a measure up a bundle that l will not use.
hi dear pass ccna today and secured 957 marks. ACL lab came.for more help email at {email not allowed}
@Abu-Talha and ahmed
Was it word for word or just similar concepts?
i did not pass yesterday 757, this was on there as well as the other one permitting www. if anyone can pass the current dump pls do so gholland357 at gmail
Can anyone forward latest CCNA dumps at hghiorsi at aol dot com. Thank you very much in advance.
@Ahmed can you help me with the recent dump hakeemomer82 at gmail dot com
Thanks 9tut. I studied for three months and passed my ccna 200-125. Everything is from here and this ACL was exactly at the exam with different ip address.
See option “D”,, say: ONLY traffic from the 10.4.4.0 …… but la wildcard permit all IPs x.x.x.0 and one network is 10.4.4.0, them the option “D” is not true.
Hi All. I have same question as KareemS. Do we actually have to make the changes on the interfaces, like fa0/0 and apply the IP access-group 104 in and also make changes to the s0/0/1? Or do we just have to use the show run command to see the actual access-lists and answer the question? Let me know. Thanks
Just passed on the exam today with both ACL lab’s and gre
Hey j , which GRE? GRE EIGRP OR GRE SIM ?
Hi guys, had my exam yesterday, passed with 908.This simlet was in my test.Also EIGRP GRE, ACL configuration Labs.
Read the updated new questions 1-7, for sure, and do all the labs.It’s good ofcousrse to read all the sections to pass easy.The labs are very important, you get good scoring, and even if you don’t know enough questions it easier to pass.I had for sure 10 question wrong and passed with 908, cause of the labs.Don’t over burn you mind, do all the question like a study, and 1 month before do all the question so that you will be familiar and fast with answers.
It worth’s paying the premium membership, makes the studding much easier, than scanning a 500sheets dumb PDF.Also 9tut has explanation on everything which makes it easier to understand.The premium had quizlets, on every section to test you.As much I can tell has much less errors or questionable answers from other PDF’s flying around the Internet, which makes it Valid and more worry free to me.Good luck guys.
Hello @jupiter
I’m going To have CCNA 200-125 exam on Feb 15. Please CCNAv3 questions (1-7)
Thanks
oa554537@gmail(.com
This sim was present.
Had my exam today and this question was one of them. Pass the exam.
Please send the latest dumps at: saeid.nakhjavan @ gmail . com
I have my exam next week ccna R&S.
Thanks
plzz i have exame in 15 feb need dumb
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