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Chapter: 6
286. Which LAN switch method holds the packet in memory until the data portion of the packet reaches the
switch?
A. Cut-through
B. Store and forward C. Frag-free
D. None of the above
Answer: C
The method for switching that reads into the data portion is frag-free. This prevents the switch from forwarding runt packets (collisions.)
Chapter: 6
287. What is the most common layer 2 device?
A. Hub
B. Bridge C. Switch
D. Router
Answer: C
A switch segments the network and uses an ASIC for fast switching. It has become the most common layer
two device.
Chapter: 6
288. What is used to find the hardware address of a device on a LAN?
A. Inverse-ARP B. Reverse-ARP
C. Interior-ARP
D. ARP
Answer: D
When a device needs to resolve a logical address to the physical Ethernet address (MAC), it uses the
Address Resolution Protocol (ARP.)
Chapter: 6