Here are the answers to Tuesday's CCNA, CCNP, and Network+ certification exam practice questions!

CCNA:

Short answer: What is the range of addresses reserved for multicasting? What class do these addresses belong to?

Answer: The reserved multicast address class is Class D, and that range is 224.0.0.0 - 239.255.255.255.

Network +:

Which of the following network topologies commonly use terminators?

A. ring

B. bus

C. star

D. hybrid

Answer: B. Of the above, only bus topologies use terminators.


CCNP / BSCI:

A stub router's OSPF routing table can contain which of the following?

A. inter-area routes

B. intra-area routes

C. E2 routes

D. E1 routes

E. A default route using the ABR as the next hop

Answers: A, B, E. A stub area's routing table can contain intra-area routes (O), inter-area routes (O IA), and a default route using the ABR as the next hop ( O IA*). The default route is used to reach external destinations.

A stub routing table will not contain E1 or E2 routes.
A typical OSPF stub routing table:


R4#show ip route ospf
1.0.0.0/32 is subnetted, 1 subnets
O IA 1.1.1.1 [110/75] via 172.34.34.3, 00:01:07, Ethernet0

172.12.0.0/24 is subnetted, 1 subnets
O IA 172.12.123.0 [110/74] via 172.34.34.3, 00:01:07, Ethernet0

O*IA 0.0.0.0/0 [110/11] via 172.34.34.3, 00:01:07, Ethernet0



CCNP / BCMSN:

What ACL type should be used to filter bridged traffic?

A. extended ACL

B. VLAN ACL

C. bridged ACL

D. TCAM ACL

E. switched ACL

Answer: B. Use a VLAN ACL to filter bridged traffic.


CCNP / BCRAN:

Authentication, callback, compression, and multilink PPP are all options of what ISDN protocol?

A. NCP

B. LCP

C. PAP

D. CHAP

Answer: B. Authentication, callback, compression, and multilink PPP are all Link Control Protocol features.


CCNP / CIT:

What's the most effective way to ensure the TCP/IP stack is correctly installed on your PC?

A. Telnet to 127.0.0.1

B. Run a traceroute to 127.0.0.1

C. Ping 127.0.0.1

D. Run a tracert to 127.0.0.1

Answer: C. Always start PC troubleshooting by pinging the PC's loopback address, 127.0.0.1


See you in just a few minutes with Thursday's CCNA, CCNP, and CompTIA exam questions!


To your certification exam success,

Chris Bryant
CCIE #12933
www.thebryantadvantage.com

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