Here are the answers to Monday's Cisco practice exam questions!
CCNA And CCENT Certification:
How many wires actually "cross over" in a crossover cable?
A. zero
B. two
C. four
D. eight
Answer: C (two pairs of wires cross)
CCNA Voice:
Short answer: As it relates to the number of channels and their use, describe the basic difference between T1 CCS and T1 CAS.
Answer:
T1 CAS (Channel Associated Signaling): 24 16-kbps channels, in-band signaling
T1 CCS (Common Channel Signaling): 23 16-kbps channels, uses 64kbps for signaling (again, a D-channel)
CCNP Certification / BSCI Exam:
What interface types are assigned the following OSPF costs if left at their default speeds? (Answers have been posted after the original choices)
A. 1785 - 56 k line
B. 10 - Ethernet
C. 6 - 16 MBPS token ring (thankfully, a bit of an obscure cost)
D. 1 - FDDI, Fast Ethernet
CCNP Certification / BCMSN Exam:
Short answer: Name the two available UDLD modes and briefly describe the operation of each.
Answer: UDLD has two modes of operation, normal and aggressive. When a unidirectional link is detected in normal mode, UDLD generates a syslog message but does not shut the port down. In aggressive mode, the port will be put into error disabled state ("err-disabled") after eight UDLD messages receive no echo from the remote switch.
CCNP Certification / ISCW Exam & CCNA Security:
Identify the DHCP Snooping defaults.
A. Ports are trusted by default.
B. Ports are untrusted by default.
C. An untrusted port that receives a DHCP Offer will shut itself down.
D. An untrusted port that received a DHCP Offer will trigger an SNMP trap, but will remain available for the connected host to use.
Answers: B, C.
More questions later today, along with at least one new Cisco Certification Video Quiz!
To your success,
Chris Bryant
CCIE #12933
http://www.thebryantadvantage.com/
CCNA And CCENT Certification:
How many wires actually "cross over" in a crossover cable?
A. zero
B. two
C. four
D. eight
Answer: C (two pairs of wires cross)
CCNA Voice:
Short answer: As it relates to the number of channels and their use, describe the basic difference between T1 CCS and T1 CAS.
Answer:
T1 CAS (Channel Associated Signaling): 24 16-kbps channels, in-band signaling
T1 CCS (Common Channel Signaling): 23 16-kbps channels, uses 64kbps for signaling (again, a D-channel)
CCNP Certification / BSCI Exam:
What interface types are assigned the following OSPF costs if left at their default speeds? (Answers have been posted after the original choices)
A. 1785 - 56 k line
B. 10 - Ethernet
C. 6 - 16 MBPS token ring (thankfully, a bit of an obscure cost)
D. 1 - FDDI, Fast Ethernet
CCNP Certification / BCMSN Exam:
Short answer: Name the two available UDLD modes and briefly describe the operation of each.
Answer: UDLD has two modes of operation, normal and aggressive. When a unidirectional link is detected in normal mode, UDLD generates a syslog message but does not shut the port down. In aggressive mode, the port will be put into error disabled state ("err-disabled") after eight UDLD messages receive no echo from the remote switch.
CCNP Certification / ISCW Exam & CCNA Security:
Identify the DHCP Snooping defaults.
A. Ports are trusted by default.
B. Ports are untrusted by default.
C. An untrusted port that receives a DHCP Offer will shut itself down.
D. An untrusted port that received a DHCP Offer will trigger an SNMP trap, but will remain available for the connected host to use.
Answers: B, C.
More questions later today, along with at least one new Cisco Certification Video Quiz!
To your success,
Chris Bryant
CCIE #12933
http://www.thebryantadvantage.com/
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