Here are the answers to Wednesday's second set of CCNA, CCNP, and Network+ questions!
CCNA:
How often does a router send OSPF Hello packets out an OSPF-enabled serial interface?
A. Every 10 seconds.
B. Every 30 seconds.
C. Every 40 seconds.
D. Every 120 seconds.
Answer: B. By default, this will be an OSPF NBMA interface, which has a hello time of 30 seconds and a dead time of 120 seconds.
CCNP / BSCI:
In which of the following OSPF network types are DRs and BDRs not elected?
A. broadcast
B. non-broadcast
C. point-to-point
D. point-to-multipoint
Answer: C, D. A point-to-point network can only have two routers, so there's no need for a DR or BDR. OSPF considers a point-to-multipoint network to be a collection of point-to-point links, so there's no need for a DR or BDR there either.
CCNP / BCMSN:
In a dot1q tunneling scheme, what switches must be configured with the "switchport mode dot1q tunnel" command?
A. The service provider edge switches.
B. All switches in the service provider network.
C. The customer network edge switches.
D. Both the customer network edge and service provider edge switches.
Answer: A. Only the interfaces on the service provider edge switches that will receive traffic over the trunk from the customer network must be configured with "switchport mode dot1q tunnel".
CCNP / BCRAN:
The DCE has buffer space available and wants to tell the DTE to send it more data. What pin will it use?
A. RTS
B. CTS
C. Pin 4
D. Pin 5
Answer: B, D. The DCE will use the Clear To Send pin - pin 5 - to tell the DCE to send it more data.
CCNP / CIT:
You're troubleshooting a problem that you've seen before. It's a problem with PAT. What troubleshooting method are you using?
A. top-down
B. bottom-up
C. divide-and-conquer
D. baseline analyzation
Answer: C. When you start troubleshooting at an interior layer of the OSI model - any layer that is not L1 or L7 - you're using the divide-and-conquer method of troubleshooting.
Network+:
Which of the following network topologies uses CSMA/CD?
A. Frame Relay
B. Process Switching
C. Ethernet
D. Token Ring
E. Fast Switching
F. ISDN
Answer: C. Ethernet uses CSMA/CD to reduce the number of collisions.
See you later this morning with the answers to Wednesday and Thursday's questions, and more!
To your certification exam success,
Chris Bryant
CCIE #12933
www.thebryantadvantage.com
CCNA:
How often does a router send OSPF Hello packets out an OSPF-enabled serial interface?
A. Every 10 seconds.
B. Every 30 seconds.
C. Every 40 seconds.
D. Every 120 seconds.
Answer: B. By default, this will be an OSPF NBMA interface, which has a hello time of 30 seconds and a dead time of 120 seconds.
CCNP / BSCI:
In which of the following OSPF network types are DRs and BDRs not elected?
A. broadcast
B. non-broadcast
C. point-to-point
D. point-to-multipoint
Answer: C, D. A point-to-point network can only have two routers, so there's no need for a DR or BDR. OSPF considers a point-to-multipoint network to be a collection of point-to-point links, so there's no need for a DR or BDR there either.
CCNP / BCMSN:
In a dot1q tunneling scheme, what switches must be configured with the "switchport mode dot1q tunnel" command?
A. The service provider edge switches.
B. All switches in the service provider network.
C. The customer network edge switches.
D. Both the customer network edge and service provider edge switches.
Answer: A. Only the interfaces on the service provider edge switches that will receive traffic over the trunk from the customer network must be configured with "switchport mode dot1q tunnel".
CCNP / BCRAN:
The DCE has buffer space available and wants to tell the DTE to send it more data. What pin will it use?
A. RTS
B. CTS
C. Pin 4
D. Pin 5
Answer: B, D. The DCE will use the Clear To Send pin - pin 5 - to tell the DCE to send it more data.
CCNP / CIT:
You're troubleshooting a problem that you've seen before. It's a problem with PAT. What troubleshooting method are you using?
A. top-down
B. bottom-up
C. divide-and-conquer
D. baseline analyzation
Answer: C. When you start troubleshooting at an interior layer of the OSI model - any layer that is not L1 or L7 - you're using the divide-and-conquer method of troubleshooting.
Network+:
Which of the following network topologies uses CSMA/CD?
A. Frame Relay
B. Process Switching
C. Ethernet
D. Token Ring
E. Fast Switching
F. ISDN
Answer: C. Ethernet uses CSMA/CD to reduce the number of collisions.
See you later this morning with the answers to Wednesday and Thursday's questions, and more!
To your certification exam success,
Chris Bryant
CCIE #12933
www.thebryantadvantage.com
Comments