Here are the answers to yesterday morning's Cisco CCNA and CCNP practice questions!
CCNA:
Short answer: You are configuring your Cisco router to communicate with a non-Cisco router via frame relay. What frame encapsulation type should you configure?
Answer: You need to use IETF encapsulation to allow Cisco routers to communicate with non-Cisco routers.
CCNP / BSCI:
Short answer: What is the default OSPF network type for a serial interface?
Answer: A serial interface defaults to the OSPF network type non-broadcast, as shown here:
R1#show ip ospf interface serial0
Serial0 is up, line protocol is up
Internet Address 172.12.123.1/24, Area 0
Process ID 1, Router ID 1.1.1.1, Network Type NON_BROADCAST, Cost: 64
CCNP / BCMSN:
A switch is running Uplinkfast. The original root port has gone down and now come back up. Assuming the switch is running all default settings, how long will it be before this port becomes the root again?
A. 1 - 3 seconds
B. 35 seconds
C. 120 seconds
D. This port cannot become the root port again - that's a default behavior of Uplinkfast.
Answer: B. The original root will become the root port when it comes back up, but not immediately. The formula is (2 x Forward Delay) + 5 seconds. With default settings, that's 35 seconds.
CCNP / BCRAN:
What makes it possible to exchange secret keys over a non-secure connection without compromising the keys?
A. Dijkstra algorithm
B. Authentication Header
C. Diffie-Hellman algorithm
D. Encapsulating Security Payload
Answer: C. Diffie-Hellman... it's not just for RIP anymore! :)
CCNP / CIT:
Short answer: What's the AD of an OSPF External route?
Answer: The same as for an OSPF Internal route - 110.
See you later this afternoon with the answers to yesterday afternoon's questions, and another set of CCNA, CCNP, and Network+ questions!
To your certification exam success,
Chris Bryant
CCIE #12933
www.thebryantadvantage.com
CCNA:
Short answer: You are configuring your Cisco router to communicate with a non-Cisco router via frame relay. What frame encapsulation type should you configure?
Answer: You need to use IETF encapsulation to allow Cisco routers to communicate with non-Cisco routers.
CCNP / BSCI:
Short answer: What is the default OSPF network type for a serial interface?
Answer: A serial interface defaults to the OSPF network type non-broadcast, as shown here:
R1#show ip ospf interface serial0
Serial0 is up, line protocol is up
Internet Address 172.12.123.1/24, Area 0
Process ID 1, Router ID 1.1.1.1, Network Type NON_BROADCAST, Cost: 64
CCNP / BCMSN:
A switch is running Uplinkfast. The original root port has gone down and now come back up. Assuming the switch is running all default settings, how long will it be before this port becomes the root again?
A. 1 - 3 seconds
B. 35 seconds
C. 120 seconds
D. This port cannot become the root port again - that's a default behavior of Uplinkfast.
Answer: B. The original root will become the root port when it comes back up, but not immediately. The formula is (2 x Forward Delay) + 5 seconds. With default settings, that's 35 seconds.
CCNP / BCRAN:
What makes it possible to exchange secret keys over a non-secure connection without compromising the keys?
A. Dijkstra algorithm
B. Authentication Header
C. Diffie-Hellman algorithm
D. Encapsulating Security Payload
Answer: C. Diffie-Hellman... it's not just for RIP anymore! :)
CCNP / CIT:
Short answer: What's the AD of an OSPF External route?
Answer: The same as for an OSPF Internal route - 110.
See you later this afternoon with the answers to yesterday afternoon's questions, and another set of CCNA, CCNP, and Network+ questions!
To your certification exam success,
Chris Bryant
CCIE #12933
www.thebryantadvantage.com
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