| Author |
CCNA Test Questions
|
|
|
| 1. ICMP (reffered to in rfc 1700) is implemented by all TCP/IP hosts.
a. true
b. false
2. IPX traffic using different encapsulation type can
go over the same data link.
a. true
b. false
3. Which configuration task must you complete if a
remote router does NOT support Inverse ARP?
4. What command do you use to view your access-lists?
(choose two)
a. show access-lists
b. show ip access-lists
c. show running-config
d. show interfaces
Does anyone know the correct answers?
Thanks,
InWin | |
| dmaftei 2001-04-18, 8:07 pm |
| These are not actual test questions, are they?!  just kidding...
1. true
2. true
3. map IP addresses to DLCIs
4. I don't know; I never bothered to learn show commands. When I need to see something, I'll do "sh ?" [grin]. "show running-config" should be correct.
Cheers! | |
| lkyoong 2001-04-18, 8:11 pm |
| 1. a
2. a
3. Use static maps. frame-relay map command.
4. a,c If the question had asked about viewing only IP access list then the answers would be different.
This would be mine answers. Please correct me if i am wrong. | |
| dmaftei 2001-04-18, 8:17 pm |
| quote:
Originally posted by lkyoong
4. a,c If the question had asked about viewing only IP access list then the answers would be different.
Yup, I checked on a router. "show ip access-list" will show only IP access lists (obviously, duh... The "duh" is for myself, guys; don't take offense.) "show interfaces" will show only the lists applied to some interface. You might as well have lists that are not applied to interfaces (applied to lines, used in NAT pools, in route maps, heck, who knows where else...)
Cheers! | |
|
| quote:
Originally posted by InWin
1. ICMP (reffered to in rfc 1700) is implemented by all TCP/IP hosts.
a. true
b. false
ICMP is an integral part of IP. IP wouldn't be complete without it. It would therefore be correct to say that all TCP/IP hosts implement ICMP.
I don't know why they mention RFC1700 in this context. RFC1700 is the "assigned numbers" RFC. Almost any Internet protocol is mentioned/referenced in this RFC, but none are described in any detail. It's not the source you would go to for an understanding of ICMP (or any of the many protocols mentioned).
quote:
2. IPX traffic using different encapsulation type can
go over the same data link.
a. true
b. false
That's true. The important thing for you is to know how to implement it should you need to do so.
quote:
3. Which configuration task must you complete if a
remote router does NOT support Inverse ARP?
Do you know what Inverse ARP does? It maps remote layer 3 addresses (e.g. IP addresses) to local DLCIs (which are the layer 2 addresses in Frame Relay). If for some reason you cannot use Inverse ARP, you have to establish the same mapping manually. You use the FRAME-RELAY MAP interface configuration command for that.
Do you know under what circumstances Invers ARP cannot be used?
quote:
4. What command do you use to view your access-lists?
(choose two)
a. show access-lists
b. show ip access-lists
c. show running-config
d. show interfaces
A, B and C would all show you access-lists. Forced to chose only two, I would eliminate B because it will not show non-IP access-lists. In real life B would be equally correct because I only work with IP 
D will not show you the entire access-list but only tell you the ID (name or number) of the access-list(s) applied to this particular interface.
quote:
Does anyone know the correct answers?
Yes, a lot of people do. But don't ask for correct answers. Ask for explanations of what you do not understand. You may get better help if you try to explain how you understand the topic in question and where you feel your problem is.
Good luck with your studies!
Terje | |
| MadChef 2001-04-19, 5:12 am |
| quote:
Originally posted by Terje
Yes, a lot of people do. But don't ask for correct answers. Ask for explanations of what you do not understand. You may get better help if you try to explain how you understand the topic in question and where you feel your problem is.
Terje, you rock. If only there were more of you on these forums.
MC | |
| dmaftei 2001-04-19, 6:09 am |
| quote:
Originally posted by Terje
I don't know why they mention RFC1700 in this context.
For the type and code numbers (RFC1700, ICMP TYPE NUMBERS, page 68.) I suppose all types and codes defined in RFC1700 are mandatory, while types/codes defined later (after October 1994) are not.
Cheers! | |
|
| Madchef, thanks for your nice comments. If there was an icon for blushing, I would have used it.
quote:
Originally posted by dmaftei
For the type and code numbers (RFC1700, ICMP TYPE NUMBERS, page 68.) I suppose all types and codes defined in RFC1700 are mandatory, while types/codes defined later (after October 1994) are not.
I do not think so. There are many type numbers in RFC1700 that are obviously NOT mandatory. The same is true for many of the other numbers in this RFC. The real reason for issuing the "assigned numbers" rfc is to make sure people use the same number for the same function and different numbers for different functions. To serve that purpose the list has to be as complete as possible and will therefore also contain seldom used or even obsolete numbers. The list is good for archeology studies
The ICMP protocol is defined in RFC792 and further extended in a number of other RFCs. The IP protocol specification was published simultaneously in RFC791. Reading those should keep InWin busy for a while (and able to answer much more complicated questions).
www.ietf.org for rfc and STD documents.
Terje | |
|
| Thanks to everyone for their prompt responses.
Thank you very much Terje for taking the time to explain each answer, it helped me understand the answers much better.
InWin | |
| creamy_stew 2001-04-19, 1:54 pm |
| quote:
For the type and code numbers (RFC1700, ICMP TYPE NUMBERS, page 68.) I suppose all types and codes defined in RFC1700 are mandatory, while types/codes defined later (after October 1994) are not.
Just a side note concerning rfc 1700. It is now considered outdated. Port numbers etc. are now constantly updated on the(IANA?)website.
/mr_smartypants | |
|
| quote:
Originally posted by creamy_stew
Just a side note concerning rfc 1700. It is now considered outdated. Port numbers etc. are now constantly updated on the(IANA?)website.
http://www.iana.org/numbers.htm | |
| dmaftei 2001-04-20, 10:05 am |
| quote:
Originally posted by Terje
quote:
Originally posted by dmaftei
I suppose all types and codes defined in RFC1700 are mandatory...
I do not think so. There are many type numbers in RFC1700 that are obviously NOT mandatory...
Yeah, I guess you're right. Let me know when you stop laughing at me... |
|
|
|