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158. Choose the characteristics of Harvard architecture
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separate program and data memories
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separated buses allow one instruction to execute while the next instruction is fetched
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data and instructions mustn’t have the same width
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one memory for data and program
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CPU provides address to get data or instruction
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data and instructions must have the same width
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159. Which of the following architectures differs by memory accessing?
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160. Choose the correct answer for the following characteristics: 1. Depend mainly on its peripherals 2. Used for a few dedicated functions 3. Usually used as a part of a larger system
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161. Choose the correct syntax of assembly statements
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name operation operand(s) comments
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operation name operand(s) comments
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operation operand(s) name comments
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comments name operation operand(s)
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163. Name field of assembly statement is not case sensitive
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164. Choose the legal name(s) in assembly
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@variable_name
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variable?
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variable&name
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variable name
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1variable
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165. In two-operand instruction, the first operand is source and the second operand is destination
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166. An instruction may have one or more operands
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167. In assembly language you can express data only in binary and decimal
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168. You should use a radix symbol in order to differentiate between binary, octal or hexadecimal
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169. Which symbol you should use to leave the variable uninitialized
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170. In assembly language, you can skip the name of variable
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171. Choose the correct syntax of variable declaration in assembly
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variable_name type initial_value
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type variable_name initial_vaule
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type initial_value variable_name
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173. Choose the definition of code segment in assembly
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174. Choose the definition of data segment in assembly
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175. Choose the definition of stack segment in assembly
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176. There is no memory allocated for constants in assembly language
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177. Which keyword you should use in order to define a constant in assembly language
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178. In assembly statement name and comment are mandatory
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179. How many deadlock recovery algorithms are there?
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180. There are 3 approaches of deadlock avoidance
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181. There are 2 policies of deadlock prevention
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182. Choose the correct approach for the following definition "involves recognizing when deadlock has occurred, and trying to recover"
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183. Choose the correct approach for the following definition "involves making dynamic choices that guarantee prevention"
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184. Choose the correct approach for the following definition "adopting a static policy that disallows one of the four conditions above"
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185. There are 4 approaches of dealing with deadlock
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186. Choose the correct answer for the following definition "A closed chain of processes exists, such that each process is blocked waiting for a resource held by another process in the set"
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Circular wait
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Mutual exclusion
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No preemption
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Hold and wait
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187. Choose the correct answer for the following definition: "No process can be forced to release a resource"
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No preemption
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Mutual exclusion
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Hold and wait
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Circular wait
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188. Choose the correct answer for the following definition "A process may hold some resources while waiting for others"
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Hold and wait
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Mutual exclusion
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Circular wait
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No pre-emption
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Choose the correct answer for the following definition "Only one process may use a resource at one time"
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Mutual exclusion
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Circular wait
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No preemption
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Hold and wait
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190. How many policy conditions for deadlock to be possible are there?
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191. What is the deadlock?
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Permanent blocking of a set of processes that either compete for global resources or communicate with each other
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Interleaving of processes in time to give the appearance of simultaneous execution
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When one process is inside a critical section of code, other processes must be prevented from entering that section
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Processes “communicate” via global counters that are initialized to a positive integer and that can be accessed only through two atomic operations
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192. Deadlock occurs when each process in the set is blocked awaiting an event that can be triggered only by another blocked process in the set
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193. In which of the following approaches there is no shared data?
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Message passing
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Mutual exclusion
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Monitors
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Semaphores
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194. Choose the correct answer for the following definition "Synchronization between processes is defined by the blocking policy attached to the sending and receiving of messages"
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Message passing
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Mutual exclusion
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Monitors
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Semaphores
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195. Monitors are similar to classes in java and has methods and fields
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196. In atomic operations semSignal(x) and semWait(x), what is the 'x'?
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197. When using semaphores, processes communicate using messages
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198. We can implement mutex through the OS or using programming languages
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199. How many approaches of mutex implementation are there?
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200. Choose the correct answer for the following definition "When one process is inside a critical section of code, other processes must be prevented from entering that section"
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Mutual exclusion
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Semaphores
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Monitors
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Message passing
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Critical section
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201. In concurrency optimal allocation of resources is difficult
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202. In concurrency, locating programming errors can't be difficult, because the contexts in which errors occur cannot always be reproduced easily
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203. In concurrency, sharing global resources safely is difficult
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204. Concurrency offers genuine simultaneous execution
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205. Parallelism is interleaving of processes in time to give the appearance of simultaneous execution
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206. Choose the correct answer for the following definition "multiple processes on multiple systems"
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Distributed processing
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Multiprogramming
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Multiprocessing
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207. Choose the correct answer for the following definition "multiple processes on a system with multiple processors"
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Multiprocessing
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Multiprogramming
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Distributed processing
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208. Choose the correct answer for the following definition "multiple processes on a system with a single processor"
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Multiprogramming
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Multiprocessing
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Distributed processing
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209. How many categories of process management are there?