CCNA / CCENT Certification Practice Exam
Wide Area Networks For ICND2
To help you prepare for success on the ICND2 and CCNA exams, here's a 10-question practice exam on the WAN protocols and technologies!
When you're done here, visit our CCNA Practice Exam page for more - and enjoy the questions!
Chris Bryant
CCIE #12999
"The Computer Certification Bulldog"
chris@thebryantadvantage.com
Question 1:
Of authentication, callback, and multilink, which does HDLC offer?
Question 2:
What is the net result when PPP runs on one end of a point-to-point link and HDLC runs on the other?
A. The physical interface goes down.
B. The line protocol goes down.
C. The line stays up but pings will not go through.
D. Nothing, that's perfectly acceptable.
Question 3:
What protocol handles callback, authentication, and compression for PPP?
A. PAP
B. LCP
C. HDLC
D. CHAP
E. SLIP
Question 4:
Of PAP and CHAP, which uses a three-way handshake?
A. PAP only
B. CHAP only
C. Both
D. Neither
Question 5:
Identify the true statements.
A. HDLC supports PAP and CHAP.
B. HDLC is the default encapsulation type for a Cisco router serial interface.
C. PPP supports PAP and CHAP.
D. PPP is the default encapsulation type on a Cisco router serial interface.
Question 6:
What command should be used to create frame mappings on a point-to-point subinterface?
A. frame ptp map
B. frame interface-dlci
C. frame map
D. frame inverse arp
Question 7:
If a frame mapping shows as "dynamic", what created it?
A. Inverse ARP
B. Dynamic ARP
C. Dynamic ARP Inspection
D. The frame relay switches
Question 8:
What value(s) does PAT use to map translations to a private address?
A. IP address
B. MAC address
C. TCP ack number
D. port number
Question 9:
Describe the basic LMI Autosense procedure.
Question 10:
The following line would appear in the output of what common debug?
00:10:10: Serialo(out): StEnq, myseq 31,yourseen 0,DTE down
Answers at the bottom of the page, right after this brief and important message!
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Answers:
1. HDLC doesn't support any of those features. PPP supports all three.
2. "B". An encapsulation mismatch such as this will bring the line protocol down.
3. "B". That's LCP, the Link Control Protocol.
4. "B". CHAP uses a three-way handshake, PAP does not.
5. "B, C". We've hammered those points home, right? :)
6. "B". The frame-relay interface-dlci command is used on point-to-point subinterfaces. You can't use the frame map command on that interface type.
7. "A". Inverse ARP creates dynamic Frame Relay mappings.
8. "D". And yes, this WAS in the ICND1 practice exam. :)
9. The basic LMI Autosense procedure:
DTE sends three LMI messages, one of each type
DCE sends back one LMI message
DTE replies with only one LMI message - matching the type the DCE sent, naturally. The exchange then continues as it would if the LMI were hard-coded.
10. That's partial output from the debug frame-relay lmi command.
That's it for this CCNA practice exam, but just click that link for plenty more - and for over 300 Cisco CCNA and CCNP tutorials, visit our Tutorials page!
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