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192. Which layer segments and reassembles data into a data stream?
A. Data-Link
B. Physical C. Transport
D. Network
Answer: C
The Transport layer is responsible for taking data from the Session layer and dividing it into manageable
units to be handled by the lower layers. These units are called segments. At the destination the Transport
layer is responsible for reassembling these segments into the original data stream.
Chapter: 4
193. Which protocol is used to resolve an IP address to an Ethernet address?
A. Inverse-ARP
B. Reverse-ARP
C. Interior-ARP D. ARP
Answer: D
When a device needs to resolve a logical IP address to a physical Ethernet address (MAC), it uses the
Address Resolution Protocol (ARP.)
Chapter: 4
194. What is the host range of the following IP address?
172.16.5.38 255.255.255.248 A. 172.16.5.0 - 5.255
B. 172.16.5.32 - 5.40
C. 172.16.5.33 - 5.39 D. 172.16.5.33 - 5.38
Answer: D
The network block size is 256-248 or 8, therefore the networks start every 8 addresses. The first network is 172.16.5.0, the second at 172.16.5.8, the third at 172.16.5.16, 172.16.5.24, 172.16.5.32,
172.16.5.40, etc. This host is on the 172.16.5.32 network and the range is .33 through .38 with the broadcast
at .39
Chapter: 4
195. Which protocol is used resolve an Ethernet address to an IP address?