Quiz 16.3

DIRECTIONS: Read each question carefully. Then click on the dot next to the answer that most closely fits the question. Try to answer all questions on this quiz and when you are done, click on the grade me button at the bottom.

Coverage: Section 16.5

  1. What is the name of the circuit that decides who gets to be the bus initiator?
controller
MMU
arbiter
director

  1. Which control wire is used to lock the bus while an operation is occurring on it?
busy
requested
granted
suspended

  1. A ________________________ is a set of rules that governs how devices use the bus.
open architecture
bus protocol
open standard
bus contention

  1. When an arbiter is used on a bus, what kind of bus contention control do we have?
centralized
decentralized

  1. What kind of bus contention control does Ethernet use?
centralized
decentralized

  1. What is one complete cycle of use of the bus, from initial request to the end?
bus cycle
bus instruction
bus transaction

  1. Which kind of simple logic circuit could be used as an arbiter for two devices?
decoder
multiplexor
Clocked D-latch
SR-latch

  1. Why is the above circuit a good and fair arbiter?
because its binary decision is totally random
because its binary decision is totally deterministic
because it is very fast
because it can be programmed to give one device priority if it needs it