640 - 607

Steve McQuerry. Interconnecting Cisco Network Devices. (Cisco Press: 2000) pages 380-382.

Q. 69

Which two statements about a bridge are true. (Choose two)

A.A bridge floods multicasts.

B.A bridge floods broadcasts.

C.A bridge does not flood multicasts.

D.A bridge does not flood broadcasts.

Answer: A, B

Explanation: A bridge must send all multicasts and broadcast to all ports, since there is only one broadcast domain.

Incorrect Answers:

C and D are incorrect, because a bridge DOES flood broadcasts and multicats.

Steve McQuerry. Interconnecting Cisco Network Devices. (Cisco Press: 2000) page 22.

Q. 70

What is the protocol and what is the second part of the following network addresses 172.16.0.254 , mask=255.255.0.0?

A.IPX:MAC addresses.

B.IP:classC directed broadcast.

C.Private IP address:node number

D.Public IP addresses:directed broadcast.

E.Private IP addresses directed broadcast.

Answer: C

Explanation: The Class B network of 172.16 is a Class B Private Address Range, and the second part (0.254) is the host address, or node number/address.

Incorrect Answers:

A is incorrect; the address is an IP address format.

B is incorrect; the question is a Class B address, if it were Class C, the mask would be 255.255.255.0 D is incorrect; 172.16 is not a public IP address.

E is incorrect; 0.254 is not a broadcast address.

Steve McQuerry. Interconnecting Cisco Network Devices. (Cisco Press: 2000) pages 234-236.

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Cisco Systems 2 manual Which two statements about a bridge are true. Choose two, Answer A, B