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176. Segmentation of a data stream happens at which layer of the OSI model?
A. Physical B. Data Link
C. Network D. Transport
Answer: D
The Transport layer is responsible for taking the Session layer's data and creating segments and
reassembling the segments into data for the Session layer on the other side.
Chapter: 4
177. What term is used if you are using the processes of placing frames from one network system into the
frame of another network system?
A. Framing
B. Encapsulating C. Tunneling
D. Frame Relay
Answer: B
Taking the frame of one system for transport on another is encapsulation. This is the process of placing one frame inside another.
Chapter: 4
178. What does the Data Link layer use to find hosts on a local network?
A. Logical network addresses
B. Port numbers C. Hardware addresses
D. Default gateways
Answer: C
Layer 2, the Data-Link layer uses the actual hardware address of each device to address frames.
Chapter: 4
179. What was the key reason the ISO released the OSI model?
A. To allow companies to charge more for their equipment.
B. The OSI model was meant to help vendors create interoperable network devices.