Quiz
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Perguntas do quiz (105)
1How many categories of process management are there
- A3
- B2
- C4
- D5
- E1
2Choose the correct answer for the following definition "multiple processes on a system with a single processor"
- AMultiprocessing
- BMultiprogramming
- CDistributed processing
3Choose the correct answer for the following definition "multiple processes on a system with multiple processors"
- AMultiprocessing
- BMultiprogramming
- CDistributed processing
4202. Choose the correct answer for the following definition "multiple processes on multiple systems"
- ADistributed processing
- BMultiprogramming
- CMultiprocessing
5Parallelism is interleaving of processes in time to give the appearance of simultaneous execution
- ATrue
- BFalse
6200. Concurrency offers genuine simultaneous execution
- AVerdadeiro
- BFalso
7199. In concurrency, sharing global resources safely is difficult
- AVerdadeiro
- BFalso
8In concurrency, locating programming errors can't be difficult, because the contexts in which errors occur cannot always be reproduced easily
- AVerdadeiro
- BFalso
9In concurrency optimal allocation of resources is difficult
- AVerdadeiro
- BFalso
10Choose 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"
- Ao Mutual exclusion
- Bo Semaphores
- Co Monitors
- Do Message passing
- Eo Critical section
11195. How many approaches of mutex implementation are there?
- A1
- B2
- C3
- D4
- E5
12194. We can implement mutex through the OS or using programming languages
- AVerdadeiro
- BFalso
13193. When using semaphores, processes communicate using messages
- AVerdadeiro
- BFalso
14192. In atomic operations semSignal(x) and semWait(x), what is the 'x'?
- AThe number of processes
- BThe number of processes that can execute critical section
- CThe number of monitors
- DNo correct answer
15Monitors are similar to classes in java and has methods and fields
- AVerdadeiro
- BFalso
16Choose the correct answer for the following definition "Synchronization between processes is defined by the blocking policy attached to the sending and receiving of messages"
- Ao Semaphores
- Bo Monitors
- Co Mutual exclusion
- Do Message passing
17In which of the following approaches there is no shared data?
- Ao Mutual exclusion
- Bo Message passing
- Co Monitors
- Do Semaphores
18Deadlock occurs when each process in the set is blocked awaiting an event that can be triggered only by another blocked process in the set
- AVerdadeiro
- BFalso
19What is the deadlock?
- Ao When one process is inside a critical section of code, other processes must be prevented from entering that section
- Bo Processes “communicate” via global counters that are initialized to a positive integer and that can be accessed only through two atomic operations
- Co Interleaving of processes in time to give the appearance of simultaneous execution
- Do Permanent blocking of a set of processes that either compete for global resources or communicate with each other
20186. How many policy conditions for deadlock to be possible are there?
- A3
- B4
- C5
- D1
- E2
21Choose the correct answer for the following definition "Only one process may use a resource at one time"
- Ao Circular wait
- Bo No preemption
- Co Mutual exclusion
- Do Hold and wait
22184. Choose the correct answer for the following definition "A process may hold some resources while waiting for others"
- Ao Hold and wait
- Bo Mutual exclusion
- Co Circular wait
- Do No pre-emption
23183. Choose the correct answer for the following definition: "No process can be forced to release a resource"
- Ao Mutual exclusion
- Bo Hold and wait
- Co No preemption
- Do Circular wait
24182. 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"
- Ao Mutual exclusion
- Bo Circular wait
- Co No preemption
- Do Hold and wait
25181. There are 4 approaches of dealing with deadlock
- AVerdadeiro
- BFalso
26180. Choose the correct approach for the following definition "adopting a static policy that disallows one of the four conditions above"
- Ao Deadlock avoidance
- Bo Deadlock detection and recovery
- Co Deadlock prevention
27Choose the correct approach for the following definition "involves making dynamic choices that guarantee prevention"
- Ao Deadlock avoidance
- Bo Deadlock prevention
- Co Deadlock detection and recovery
28178. Choose the correct approach for the following definition "involves recognizing when deadlock has occurred, and trying to recover"
- Ao Deadlock detection and recovery
- Bo Deadlock avoidance
- Co Deadlock prevention
29There are 2 policies of deadlock prevention
- AVerdadeiro
- BFalso
30There are 3 approaches of deadlock avoidance
- AVerdadeiro
- BFalso
31175. How many deadlock recovery algorithms are there?
- A5
- B4
- C3
- D2
32174. In assembly statement name and comment are mandatory
- AVerdadeiro
- BFalso
33Which keyword you should use in order to define a constant in assembly language
- Ao CONST
- Bo EQ
- Co DW
- Do DD
- Eo EQU
34There is no memory allocated for constants in assembly language
- AVerdadeiro
- BFalso
35Choose the definition of stack segment in assembly
- Ao All variable definitions
- Bo A block of memory to store a stack
- Co Contains a program’s instructions
36170. Choose the definition of data segment in assembly
- Ao All variable definitions
- Bo A block of memory to store a stack
- Co Contains a program’s instructions
37Choose the definition of code segment in assembly
- Ao Contains a program’s instructions
- Bo A block of memory to store a stack
- Co All variable definitions
38Choose the correct syntax of variable declaration in assembly
- Ao variable_name type initial_value
- Bo type variable_name initial_vaule
- Co type initial_value variable_name
39In assembly language, you can skip the name of variable
- AVerdadeiro
- BFalso
40Which symbol you should use to leave the variable uninitialized
- Ao !
- Bo ?
- Co @
- Do $
41You should use a radix symbol in order to differentiate between binary, octal or hexadecimal
- AVerdadeiro
- BFalso
42164. In assembly language you can express data only in binary and decimal
- AVerdadeiro
- BFalso
43163. An instruction may have one or more operands
- AVerdadeiro
- BFalso
44162. In two-operand instruction, the first operand is source and the second operand is destination
- AVerdadeiro
- BFalso
45161. Choose the legal name(s) in assembly
- A@variable_name
- Bvariable?
- Cvariable&name
- Dvariable name
- E1variable
46160. Name field of assembly statement is not case sensitive
- AVerdadeiro
- BFalso
47159. The assembler translates names into memory addresses
- AVerdadeiro
- BFalso
48158. Choose the correct syntax of assembly statements
- Ao operation name operand(s) comments
- Bo name operation operand(s) comments
- Co operation operand(s) name comments
- Do comments name operation operand(s)
49157. 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
- Ao Microcontroller
- Bo General purpose microprocessor
50Which of the following architectures differs by memory accessing?
- AVon Neumann
- BComplex Instruction Set Computers
- CReduced Instruction Set Computers
- DHarvard
51155. Choose the characteristics of Harvard architecture
- Adata and instructions mustn’t have the same width
- Bone memory for data and program
- CCPU provides address to get data or instruction
- Dseparated buses allow one instruction to execute while the next instruction is fetched
- Eseparate program and data memories
- Fdata and instructions must have the same width
52154. Choose the characteristics of Von Neumann architecture
- Aseparate busses, can be accessed simultaneously
- Bone memory for data and program
- Cseparated buses allow one instruction to execute while the next instruction is fetched
- DCPU provides address to get data or instructions
- Edata and instructions must have the same width
- Fdata and instructions mustn’t have the same width
53153. Choose the characteristics of RISC processors
- Aless number of instructions
- Bsupport many addressing modes
- Clarge number of instructions
- Dfew addressing modes
- Einstructions are of fixed length
- Fmore elaborate way of accessing data
54152. Choose the characteristics of CISC processors
- Alarge number of instructions
- Bsupport many addressing modes
- Cless number of instructions
- Dmore elaborate way of accessing data
- Einstructions are of fixed length
- Ffew addressing modes
55151. What is included into performance characteristic of computer memory systems?
- AAccess time
- BWord
- CCycle Time
- DTransfer Rate
- ENumber of bytes
- FNumber of words
56What is included into physical type characteristic of computer memory systems?
- ANumber of bytes
- BAccess Time
- CWord
- DMagnetic
- ESemiconductor
57149. How external nonvolatile memory is called?
- Ao Secondary memory
- Bo Main memory
- Co Cache memory
- Do Virtual memory
58148. The basic element of a semiconductor memory is the memory cell
- AVerdadeiro
- BFalso
59147. Choose the component of SSD for the following definition: High speed RAM memory components used for speed matching and to increased data throughput
- Ao Flash Memory Components
- Bo Data buffer/cache
- Co Addressing
- Do Controller
- Eo Error Correction
60146. Choose the component of SSD for the following definition: Logic that performs the selection function across the flash memory components
- Ao Flash Memory Components
- Bo Data buffer/cache
- Co Addressing
- Do Controller
- Eo Error Correction
61145. Choose the component of SSD for the following definition: Individual NAND flash chips
- Ao Addressing
- Bo Flash Memory Components
- Co Data buffer/cache
- Do Controller
- Eo Error Correction
62144. Choose the component of SSD for the following definition: Logic for error detection and correction
- Ao Addressing
- Bo Error Correction
- Co Data buffer/cache
- Do Controller
- Eo Flash memory components
63143. Choose the component of SSD for the following definition: provides SSD device level interfacing and firmware execution
- Ao Controller
- Bo Addressing
- Co Data buffer/cache
- Do Error correction
- Eo Flash memory components
64SSD stands for
- Ao Solid State Drive
- Bo Solid State Driver
- Co Speed State Drive
- Do Speed State Driver
65SSDs are more susceptible to physical shock and vibration
- AVerdadeiro
- BFalso
66SSDs are susceptible to mechanical wear
- AVerdadeiro
- BFalso
67SSD is over 10 times faster than the spinning disks in HDD
- AVerdadeiro
- BFalso
68Choose the components of SSD
- AController
- BAddressing
- CData size
- DData buffer/cache
- EMemory hierarchy
69The RAID scheme consists of 7 levels
- AVerdadeiro
- BFalso
70136. What does RAID stand for?
- Ao Random Array of Independent Disks
- Bo Redundant Array of Independent Disks
- Co Redundant Array of Interoperable Disks
- Do Random Access to Independent Disks
71135. Choose the physical characteristic(s) of disk systems
- ADisk system implementstion
- BDisk Size
- CHead Mechanism
- DHead Motion
- EDisk Portability
72134. Choose the physical characteristic(s) of disk systems
- ADisk system implementstion
- BDisk Size
- CHead Mechanism
- DPlatters
- ESides
73How many physical characteristics of disk systems are there?
- A4
- B5
- C2
- D3
74132. Choose the system attribute(s) by which the performance factors are influenced
- ACache size
- BCompiler Technology
- CProcessor Implementation
- DUnit of Transfer
- ECache and memory hierarchy
75131. Choose the performance factor(s)
- ACache Size
- BInstruction Count
- CNumber of Processor Cycles
- DLine Size
- ENumber of memory references
76Choose the performance factor(s)
- ACache Size
- BLine Size
- CInstruction Count
- DNumber of Processor Cycles
- EMapping function
- FLatency
77How many performance factors are there
- A5
- B4
- C3
- D2
- E1
78Choose the type(s) of auxiliary memory
- AFlash Memory
- BOptical Disk
- CHard Drive
- DSSD
- ERAM
79127. How many access methods are there?
- A1
- B2
- C3
- D4
- E5
80126. We can find needed block in associatively mapped cache by its block address
- AVerdadeiro
- BFalso
81125. There are two types of mapping functions
- ATrue
- BFalse
82124. There are three types of cache addresses
- AVerdadeiro
- BFalso
83123. Choose the element(s) of cache design
- ATag
- BLatency
- CAMAT
- DCache Size
- ELine Size
- FNumber of Caches
84122. Choose the element(s) of cache design
- ATag
- BLatency
- CAMAT
- DMapping Function
- EReplacement Algorithm
- FNumber of Caches
85121. How many elements of cache design are there?
- A2
- B5
- C4
- D6
- E7
86The particular block is currently being stored is called tag
- AVerdadeiro
- BFalso
87The rate at which data can be transferred into or out of a memory unit is called
- Ao Transfer time
- Bo Transfer Rate
- Co MIPS
- Do FLOPS
- Eo MFLOPS
88For random-access memory, the time it takes to perform a read or write operation is called
- AClock Rate
- BCPI
- CAccess Time
- DLatency
89117. When using microprocessor based systems, it is enough to update the software
- AVerdadeiro
- BFalso
90116. Digital circuits are inflexible and slower, because they are technology dependent
- AVerdadeiro
- BFalso
91115. After implementing embedded systems, you can easily use them for another purposes
- AVerdadeiro
- BFalso
92The “natural” unit of organization of memory is called block
- AVerdadeiro
- BFalso
93Word is the “natural” unit of organization of memory
- AVerdadeiro
- BFalso
94112. Choose the key characteristics of computer memory systems
- APhysical Type
- BPhysical Characteristics
- CAccess Method
- DUnit of Transfer
- EPerformance
95111. Choose the key characteristics of computer memory systems
- ACapacity
- BPerformance
- CInstruction Fetch
- DOrganization
- EInstruction Decode
96Choose the key characteristics of computer memory systems
- ALocation
- BUnit of Transfer
- CStalling
- DHazards
- EAccess Method
97Floating point performance is expressed as
- Ao CPI
- Bo FLOPS
- Co MIPS
- Do MFLOPS
98A common measure of performance for a processor is the rate at which instructions are executed, called
- Ao CPI
- Bo Clock Rate
- Co MFLOPS
- Do MIPS
99Halting the flow of instructions until the required result is ready to be used is called
- Ao waiting
- Bo stalling
- Co delaying
- Do halting
100Choose data dependences
- ARead-After-Read
- BRead-After-Write
- CWrite-After-Write
- DWrite-After-Read
101In execution stage identification of the operation is performed
- AVerdadeiro
- BFalso
102104. How the stage in which the results of the operation are written to the destination register is called?
- Ao Instruction Fetch
- Bo Write Back
- Co Instruction Decode
- Do Execution
- Eo Memory read/write
103Which stage is responsible for storing and loading values to and from memory?
- Ao Instruction Fetch
- Bo Memory read/write
- Co Instruction Decode
- Do Execution
- Eo Write Back
104Stage in which the instruction is fetched from memory and placed in the instruction register called
- Ao Memory read/write
- Bo Instruction Fetch
- Co Instruction Decode
- Do Execution
- Eo Write Back
105A technique used in advanced microprocessors where the microprocessor begins executing a first instruction before the second has been completed is called pipelining
- AVerdadeiro
- BFalso
Informações
- Descrição
- 12345hjkh
- Autor
- Adam Smith
- Idioma
- English
- Visualizações
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