Hey, I owe you some answers... so here they are, the answers to Monday's Cisco CCNA and CCNP exam questions, along with the Network+ exam question!
CCNA:
Which of the following is NOT used in a dialer profile?
A. ip address
B. encapsulation type
C. dialer pool number
D. dialer map statement
E. PAP or CHAP statements
Answer: D. Dial profiles do not contain dialer map statements.
Network+ :
Which of the following IP addresses is not suitable for assigning to a PC?
A. 10.1.1.1
B. 20.2.2.256
C. 172.16.1.1
D. 224.24.1.234
Let's go down the list:
10.1.1.1 is in the RFC 1918 private address range for Class A, so that's fine.
20.2.2.256 is an illegal address, since no octet can have a value larger than 255. If you see a number over 255 in any octet, that's literally impossible.
172.16.1.1 is in the RFC 1918 private address range for Class B, so that's fine.
224.24.1.234 is a Class D address, reserved for multicasting, so we can't use that one.
If this were a router interface, or other device that was directly facing the 'Net, we couldn't use any of them.
CCNP / BSCI:
What command is used to configure an EIGRP summary route on an interface?
A. EIGRP summary routes are not configured on interfaces.
B. ip summary-route
C. ip summary-address
D. area range
E. summary-address
Answer: C. Use the ip summary-address command to configure EIGRP and RIP summary routes. Summary routes for both of these protocols is configured at the interface level.
CCNP / BCRAN:
Which of the following phrases correctly describes Frame Relay?
A. packet switching
B. circuit switching
C. less efficient than ISDN
D. less expensive than ISDN
Answers: A, D. Frame Relay is a packet switching technology, meaning that packets may take different paths to the same destination. Frame Relay is less expensive than ISDN.
CCNP / BCMSN:
A switch has two paths to the root bridge. One is direct, the other goes through another switch. You want to lessen the delay that will occur if the current root port goes down. What Cisco feature can help?
A. Portfast
B. Backbonefast
C. Uplinkfast
D. BPDU Skewing
Answer: C. Uplinkfast can help. When the root port goes down, the currently blocked port will be placed info forwarding mode almost immediately.
CCNP / CIT:
You've just configured SPIDs on a BRI interface. You know they are correct, but "show isdn status" tells you they're not valid. What should you do?
A. Debug layer 2 with debug isdn q921.
B. Debug layer 3 with debug isdn q931.
C. Close the BRI interface and reopen it.
D. Configure the ISDN switchtype correctly.
Answer: C. You could debug layer 2, but the first thing you should do in this situation is close and reopen the BRI interface to reset the connection with the ISDN provider.
See you in just a few minutes with the answers to Tuesday's Cisco and CompTIA questions!
To your certification exam success,
Chris Bryant
CCIE #12933
www.thebryantadvantage.com
CCNA:
Which of the following is NOT used in a dialer profile?
A. ip address
B. encapsulation type
C. dialer pool number
D. dialer map statement
E. PAP or CHAP statements
Answer: D. Dial profiles do not contain dialer map statements.
Network+ :
Which of the following IP addresses is not suitable for assigning to a PC?
A. 10.1.1.1
B. 20.2.2.256
C. 172.16.1.1
D. 224.24.1.234
Let's go down the list:
10.1.1.1 is in the RFC 1918 private address range for Class A, so that's fine.
20.2.2.256 is an illegal address, since no octet can have a value larger than 255. If you see a number over 255 in any octet, that's literally impossible.
172.16.1.1 is in the RFC 1918 private address range for Class B, so that's fine.
224.24.1.234 is a Class D address, reserved for multicasting, so we can't use that one.
If this were a router interface, or other device that was directly facing the 'Net, we couldn't use any of them.
CCNP / BSCI:
What command is used to configure an EIGRP summary route on an interface?
A. EIGRP summary routes are not configured on interfaces.
B. ip summary-route
C. ip summary-address
D. area range
E. summary-address
Answer: C. Use the ip summary-address command to configure EIGRP and RIP summary routes. Summary routes for both of these protocols is configured at the interface level.
CCNP / BCRAN:
Which of the following phrases correctly describes Frame Relay?
A. packet switching
B. circuit switching
C. less efficient than ISDN
D. less expensive than ISDN
Answers: A, D. Frame Relay is a packet switching technology, meaning that packets may take different paths to the same destination. Frame Relay is less expensive than ISDN.
CCNP / BCMSN:
A switch has two paths to the root bridge. One is direct, the other goes through another switch. You want to lessen the delay that will occur if the current root port goes down. What Cisco feature can help?
A. Portfast
B. Backbonefast
C. Uplinkfast
D. BPDU Skewing
Answer: C. Uplinkfast can help. When the root port goes down, the currently blocked port will be placed info forwarding mode almost immediately.
CCNP / CIT:
You've just configured SPIDs on a BRI interface. You know they are correct, but "show isdn status" tells you they're not valid. What should you do?
A. Debug layer 2 with debug isdn q921.
B. Debug layer 3 with debug isdn q931.
C. Close the BRI interface and reopen it.
D. Configure the ISDN switchtype correctly.
Answer: C. You could debug layer 2, but the first thing you should do in this situation is close and reopen the BRI interface to reset the connection with the ISDN provider.
See you in just a few minutes with the answers to Tuesday's Cisco and CompTIA questions!
To your certification exam success,
Chris Bryant
CCIE #12933
www.thebryantadvantage.com
Comments
Why can't we assign addresses from the RFC 1918 private range to hosts? I do it all the time. As long as you don't connect them to the internet or as long as you use a NAT device to connect to the internet you're OK.
You can. I had originally intended the question to ask about interfaces connecting to the Net. Nice catch!
Chris Bryant
CCIE #12933
chris@thebryantadvantage.com