d. A hub is a data link layer device.
e. A hub ampli?¬?es the data signal before retransmitting it.
2. Which of the following statements best describe collisions? (Choose three.)
a. Collisions occur when two or more stations on a shared media transmit at the
same time.
b. Larger segments are less likely to have collisions.
c. In a collision, the frames are destroyed, and each station in the segment begins a
random timer that must be completed before attempting to retransmit the data.
d. Adding a hub to a network can improve collision issues.
e. Collisions are by-products of a shared LAN.
f. More segments on a network mean greater potential for collisions.
3. Which of these choices best describes a collision domain?
a. Two or more devices trying to communicate at the same time
b. Two networks that are connected
c. Network segments that share the same bandwidth
d. None of the above
4. What type of hardware will help eliminate collisions?
a. Repeater
b. Bridge
c. Hub
d. Extender
5. Which of the following factors are typical causes of network congestion? (Choose
three.)
a. High-bandwidth applications
b. Many network segments
c. Increasing volume of network traf?¬?c
d. More powerful computer and network technologies
e.
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