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Perguntas do quiz (197)
1Controls the operation of the computer and performs its data processing functions:
- AMain memory
- BI/O
- CCPU
- DSystem interconnection
2What provides storage internal to the CPU?
- ARegisters
- BArithmetic and logic unit
- CCPU interconnection
- DControl unit
3ENIAC stands for:
- AElectronical Numerical Integrator And Computer
- BElectronic Numerical Integration Analogue Computer
- CElectronic Numerical Integrator And Computer
- DElectronic Numerical Interaction And Calcuation
4How the central termination point for data channels, the CPU, and memory is called. It schedules access to the memory from the CPU and data channels, allowing these devices to act independently.
- ATransistor
- BMultiplexor
- CIntegrated circuit
- DResistors
- ECapacitors
5Expand the abbreviation VLSI
- AVery-large-scale integration
- BVery-little-scale integration
- CVery-large-scale interactions
- DVery-large-scale integrator
6Which technique allows to processor simultaneously work on multiple instructions?
- ABranch prediction
- BData flow analysis
- CPipelining
- DSpeculative execution
7Using this technique processor looks ahead in the instruction code fetched from memory and predicts which groups of instructions are likely to be processed next.
- ABranch prediction
- BData flow analysis
- CPipelining
- DSpeculative execution
8Which technique helps to processor investigates which instructions are dependent on each other’s results, or data, to create an optimized schedule of instructions
- ABranch prediction
- BData flow analysis
- CPipelining
- DSpeculative execution
9This technique enables the processor to keep its execution engines as busy as possible by executing instructions that are likely to be needed.
- ABranch prediction
- BData flow analysis
- CPipelining
- DSpeculative execution
10The world’s first general-purpose microprocessor. It was used in the first personal computer, the Altair.
- A8070
- B8080
- C8086
- D8090
11Which of the following laws deals with the potential speedup of a program using multiple processors compared to a single processor.
- AMoor’s Law
- BLittle’s Law
- CMurphy's law
- DAmdahl’s law
12The processor responds by suspending operation of the current program, branching off to a program to service that particular I/O device, known as _________________, and resuming the original execution after the device is serviced. Which of the following will be the missing word:
- Ainterrupt handler
- Binterrupt cycle
- Cdisabled interrupt
- Dinterrupt request
13What is the data line?
- Aprovide a path for moving data among system modules
- Bis used to designate the source or destination of the data on the data bus
- Cis used to control the access to and the use of the data and address lines
- Dindicates that a module needs to gain control of the bus
14 What is used to manage the access to and the use of the data and address lines?
- Aaddress bus
- Bcontrol lines
- Cmemory write
- Dbus grant
- Eaddress lines
15Bus lines can be separated into two generic types:
- ADedicated
- BCentralized
- CDistributed
- DMultiplexed
- ESynchronous
- FAsynchronous
16PCI stands for:
- APower Control Interface
- BPeripheral component interconnect
- CProperty Casualty Insurers
- DProgrammable Communications Interface
17The methods of accessing units of data:
- ASequential access
- BPseudo access
- CDirect access
- DIndirect access
- ESingle access
- FRandom access
- GAssociative access
18What kind of memory type stores data using virtual addresses:
- ALogical
- BVirtual
- CPeripheral
- DMain
- EBuffer
19Amdahl’s law:
- ASpeed up= 1/(1 + f ) * f/N
- BSpeed up= 1/(1 - f ) * f/N
- CSpeed up= 1/(1 - f ) - f/N
- DSpeed up= 1/(1 - f ) + f/N
- ESpeed up= 1/(1 + f ) + f/N
20AMAT stands for:
- AAverage memory access time
- BAutomatic Message Accounting Transmitter
- CAsymptotic Mean Acquisition Time
- DAbsolute memory access time
21_____________ is a special purpose system that is used to perform one or few dedicated functions.
- ADistributed systems
- BEmbedded systems
- CUltra-Large-Scale Systems
- DCentralized systems
- EUbiquitous systems
22How many generations semiconductor memory has been through, since 1970? (please write number)
- A13
- B14
- C15
23MIC stands for:
- Amini integrated core
- Bmany integrated core
- Cmain integrated core
- Dmany interaction core
- Emain interaction core
24Clock Frequency of SDRAM is equal to:
- A200
- B600
- C300
- D166
- E156
25An instruction pipeline increases the performance of a processor by overlapping the processing of several different instructions. How many stages it is consist of:
- A6
- B3
- C5
- D7
- E4
26_____________ is the amount of time it takes the program to perform in seconds
- AElapsed time
- BOverall time
- CEstimate time
- DExecution time
- EProcess time
27How many number systems are exist? (write number)
- A4
- B7
- C10
- D3
28Which of the following is the right result for this operation: 11001+110001=
- A10101010
- B10101110
- C01001010
- D01100110
- E10001010
29Convert decimal 230 to the binary:
- A011000110
- B011100110
- C101100110
30Convert binary 1100111 to decimal:
- A103
- B100
- C95
- D130
- E110
31A single, self-contained transistor is called ________.
- Aintegrated circuit
- Bmicrochip
- Cdiscrete component
- Dsingle transistor
- Esmall-scale integration
32GPU stands for:
- Agraphical processing unit
- Bgraphical performing units
- Cgraphics processing units
- Dgraphics processing utility
33What measures the ability of a computer to complete a single task?
- AClock rate
- BSpeed metric
- CClock speed
- DClock cycle
- EExecution speed
34Convert hexadecimal value: DAD to decimal:
- A3500
- B3501
- C4500
- D4501
- E3503
35Convert decimal value: 877 to hexadecimal:
- A36D
- B38A
- C36B
- D38C
- E36A
36How we call the thing that is connects major computer components (processor, memory, I/O)?
- ASystem connector
- BSystem controllers
- CSystem bus
- DSystem interconnector
37Which of the following is the result of the binary multiplication: 100010*100101=
- A11011101010
- B10111101010
- C10010001010
- D10010101010
- E10011101010
38Convert the binary value: 111011 to decimal
- A59
- B58
- C56
- D60
- E69
39DRAM stands for:
- ADirect random access memory
- BDynamic random accessible memory
- CDynamical random access memory
- DDynamic random access memory
- EDiscrete random access memory
40How is called the permanent physical defect when the memory cell or cells affected cannot reliably store data but become stuck at 0 or 1 or switch erratically between 0 and 1?
- ASoft error
- BHard error
- CHard failure
- DSoft failure
- EEpic failure
41How is called a random, nondestructive event that alters the contents of one or more memory cells without damaging the memory?
- ASoft error
- BHard error
- CHard failure
- DSoft failure
- EEpic failure
42Choose the feature(s) of first generation computer architecture
- AMagnetic core memory
- BSemiconductor memory
- CMachine code
- DVacuum tubes
- EAssembly language
43Choose the feature(s) of third generation computer architecture
- AObject-Oriented programming
- BFloating point arithmetic
- CGraphics
- DTimesharing
- EUse of cache memory
44Choose the feature(s) of second generation computer architecture
- AHigh level languages
- BTransistors
- C2 Kb memory, 10 KIPS
- D2 Mb memory, 5 MIPS
- EDifferent types of supported instructions
45Choose the feature(s) of fourth generation computer architecture
- AObject-Oriented programming
- BWide spread use of data communications
- CSmallest in size
- DUse of cache memory
- EUse of drum memory or magnetic core memory
46How many generations of computer architecture are there?
- A4
- B3
- C2
- D1
- E5
47Choose the years of the first generation computer architecture
- A1958-1964
- B1964-1974
- C1974-present
- D1945-1964
- E1945-1958
48Choose the years of the second generation computer architecture
- A1945-1958
- B1964-1974
- C1974-present
- D1945-1964
- E1958-1964
49In 1976 Apple II computer model was released
- AVerdadeiro
- BFalso
50IBM System/360 Model 91 was introduced in 1966
- AVerdadeiro
- BFalso
51Choose two types of models for a computing machine
- AHarvard architecture
- BVon Neumann architecture
- COxford architecture
- DStanford architecture
52 How many number systems are there?
- A1
- B2
- C3
- D4
53 How a binary digit is called?
- Abyte
- Bdigit
- Ckilobyte
- Dbit
54 Four bits make octal digit
- ATrue
- BFalse
55 Three bits make hexadecimal digit
- AVerdadeiro
- BFalso
56Octal and hexadecimal numbers are hard on use and conversion
- AVerdadeiro
- BFalso
57 Which digits are used in octal number system?
- A0-7
- B0 and 1
- C0-9
- DAll digits
58 What does CPI stand for?
- ACycles Per Instruction
- BClocks Per Instruction
- CCycles Per Interface
- DClocks Per Interface
59 What is time elapsed to program execution?
- ACPU Time
- BUser time + OS Time
- CI/O waiting & Other programs
- DCPU Time + I/O waiting & Other programs
60 The execution time of a program clearly depends on the number of instructions
- AVerdadeiro
- BFalso
61 The more clock rate of processor, the faster is processor
- AVerdadeiro
- BFalso
62 CPU Time = I * CPI / R. Which parameter requires special profiling software?
- ACycles Per instruction
- BClock Rate
- CNumbers of instructions
- DExecution time
63 Select the correct interpretation(s) of Amdahl's Law
- Ais used to compare computers' performance
- Bis used calculate the execution time of a program
- Cis used to find the maximum expected improvement
- Dit means that it is the algorithm that decides the speedup not the number of processors
64 Into how many parts a program (or algorithm) which can be parallelized can be split up?
- A3
- B4
- C5
- D2
65The time interval is called a clock rate
- ATrue
- BFalse
66What does LRU stand for?
- ALeast Right Used
- BLast Recently User
- CLast Recently Used
- DLeast Recently Used
67Static RAM has a reduced power consumption, and a large storage capacity
- ATrue
- BFalse
68 How a memory unit accessed by contents is called?
- AAssociative Memory
- BContent Addressable Memory
- CAuxiliary Memory
- DCache Memory
- EVirtual Memory
69 Choose the access method(s)
- AParallel Access
- BIndirect Access
- CRandom Access
- DDirect Access
- ESequential Access
70 ROM is the place in a computer where the operating system, application programs, and data in current use are kept.
- AVerdadeiro
- BFalso
71 In which cache memory mapping technique any block from main memory can be placed anywhere in the cache?
- AAssociative Mapping
- BSet Associative Mapping
- CDirect Mapping
72 In LRU replacement algorithm, the block that is in the cache longest is replaced
- AVerdadeiro
- BFalso
73In which cache memory mapping technique any memory block is mapped to exactly one block in the cache?
- ADirect Mapping
- BSet Associative Mapping
- CAssociative Mapping
74In which cache memory mapping technique any memory block mapped to subset of cache locations?
- ASet Associative Mapping
- BDirect Mapping
- CAssociative Mapping
75 Which type of memory accessed via the input/output channels?
- AMain Memory
- BCache Memory
- CVirtual Memory
- DAuxiliary Memory
- ESecondary Memory
76 Which type of memory stores frequently used data?
- AMain Memory
- BVirtual Memory
- CAuxiliary Memory
- DSecondary Memory
- ECache Memory
77 Choose the right formula for AMAT
- AAMAT = Hit time + Miss rate + Miss penalty
- BAMAT = Hit time * Miss rate + Miss penalty
- CAMAT = Hit time * Miss rate * Miss penalty
- DAMAT = Hit time + Miss rate * Miss penalty
78 Choose the definition for compulsory misses
- AOccurs if the cache cannot contain all the blocks needed during execution of a program
- BOccurs if the block placement strategy is not fully associative
- CThe very first access to a block cannot be in the cache
79 Choose the definition for capacity misses
- AOccurs if the cache cannot contain all the blocks needed during execution of a program
- BThe very first access to a block cannot be in the cache
- COccurs if the block placement strategy is not fully associative
80 Choose the definition for conflict misses
- AOccurs if the block placement strategy is not fully associative
- BOccurs if the cache cannot contain all the blocks needed during execution of a program
- CThe very first access to a block cannot be in the cache
81 Select cache optimizations to reduce miss penalty
- AMultilevel Caches
- BGiving Reads Priority over Writes
- CWay Prediction
- DHigher associativity
82Select cache optimizations to increase the Cache Bandwidth
- ANonblocking Caches
- BMultibanked Caches
- CPipelined Cache Access
- DSmall and Simple First-Level Caches
- EMultilevel Caches
83In virtual memory, memory can be used efficiently because a section of program always loaded
- AVerdadeiro
- BFalso
84 The advantage of virtual memory is that it takes less time to switch between applications because of additional memory
- AVerdadeiro
- BFalso
85 Choose basic cache optimizations
- ACompiler-Controlled Prefetching
- BNonblocking Caches
- CSmall and Simple First-Level Caches
- DMultilevel Caches
- EAvoiding Address Translation during Cache Indexing
86 Choose advanced cache optimizations
- AGiving Reads Priority over Writes
- BLarger Cache Size
- CHardware Prefetching of Instructions and Data
- DMerging Write Buffer
- ECritical Word First and Early Restart
87 Select cache optimizations to reduce hit time (both basic and advanced)
- AAvoiding Address Translation during Cache Indexing
- BSmall and Simple First-Level Caches
- CWay Prediction
- DCompiler Optimizations
- ECompiler-Controlled Prefetching
88 Physical address used by program, and which OS must translate into virtual address
- AVerdadeiro
- BFalso
89 Process of instruction execution is divided into two or more steps, called
- Apipelining
- Bpipe stages
- Cpipe segments
- Dinstruction execution
- Epipeline hazard
90 Pipelining can only be implemented on hardware
- AVerdadeiro
- BFalso
91 Choose hazard for the following definition: different instructions in different stages (or the same stage) conflicting for the same resource
- AStructural
- BData
- CControl
92Choose hazard for the following definition: an instruction cannot continue because it needs a value that has not yet been generated by an earlier instruction
- AData
- BStructural
- CControl
93Choose hazard for the following definition: fetch cannot continue because it does not know the outcome of an earlier branch – special case of a data hazard
- AControl
- BStructural
- CData
94 A technique used in advanced microprocessors where the microprocessor begins executing a first instruction before the second has been completed is called pipelining
- AVerdadeiro
- BFalso
95 Stage in which the instruction is fetched from memory and placed in the instruction register called
- AMemory read/write
- BInstruction Decode
- CExecution
- DWrite Back
- EInstruction Fetch
96 Which stage is responsible for storing and loading values to and from memory?
- AInstruction Fetch
- BMemory read/write
- CInstruction Decode
- DExecution
- EWrite Back
97How the stage in which the results of the operation are written to the destination register is called?
- AInstruction Fetch
- BWrite Back
- CInstruction Decode
- DExecution
- EMemory read/write
98 In execution stage identification of the operation is performed
- AVerdadeiro
- BFalso
99 Choose data dependences
- ARead-After-Read
- BRead-After-Write
- CWrite-After-Write
- DWrite-After-Read
100Halting the flow of instructions until the required result is ready to be used is called
- Awaiting
- Bdelaying
- Chalting
- Dstalling
101 A common measure of performance for a processor is the rate at which instructions are executed, called
- ACPI
- BClock Rate
- CMFLOPS
- DMIPS
102 Floating point performance is expressed as
- ACPI
- BFLOPS
- CMIPS
- DMFLOPS
103 Choose the key characteristics of computer memory systems
- ALocation
- BUnit of Transfer
- CAccess Method
- DStalling
- EHazards
104Choose the key characteristics of computer memory systems
- ACapacity
- BPerformance
- COrganization
- DInstruction Fetch
- EInstruction Decode
105Choose the key characteristics of computer memory systems
- APhysical Type
- BPhysical Characteristics
- CAccess Method
- DUnit of Transfer
- EPerformance
106 Word is the “natural” unit of organization of memory
- AVerdadeiro
- BFalso
107 The “natural” unit of organization of memory is called block
- AVerdadeiro
- BFalso
108After implementing embedded systems, you can easily use them for another purposes
- AVerdadeiro
- BFalso
109Digital circuits are inflexible and slower, because they are technology dependent
- AVerdadeiro
- BFalso
110When using microprocessor based systems, it is enough to update the software
- AVerdadeiro
- BFalso
111 For random-access memory, the time it takes to perform a read or write operation is called
- AClock Rate
- BCPI
- CAccess Time
- DLatency
112 The rate at which data can be transferred into or out of a memory unit is called
- AThe rate at which data can be transferred into or out of a memory unit is called
- BTransfer Rate
- CMIPS
- DFLOPS
- EMFLOPS
113 The particular block is currently being stored is called tag
- AVerdadeiro
- BFalso
114How many elements of cache design are there?
- A2
- B5
- C4
- D6
- E7
115Choose the element(s) of cache design
- ATag
- BLatency
- CAMAT
- DMapping Function
- EReplacement Algorithm
- FNumber of Caches
116There are three types of cache addresses
- AVerdadeiro
- BFalso
117There are two types of mapping functions
- AVerdadeiro
- BFalso
118We can find needed block in associatively mapped cache by its block address
- AVerdadeiro
- BFalso
119 How many access methods are there?
- A3
- B2
- C4
- D5
- E6
120 Choose the type(s) of auxiliary memory
- AFlash Memory
- BOptical Disk
- CHard Drive
- DSSD
- ERAM
121 How many performance factors are there
- A5
- B4
- C3
- D2
- E6
122 Choose the performance factor(s)
- ACache Size
- BLine Size
- CInstruction Count
- DNumber of Processor Cycles
- EMapping function
- FLatency
123Choose the performance factor(s)
- ACache Size
- BLine Size
- CInstruction Count
- DNumber of Processor Cycles
- ENumber of memory references
124Choose the system attribute(s) by which the performance factors are influenced
- ACache size
- BUnit of Transfer
- CCompiler Technology
- DProcessor Implementation
- ECache and memory hierarchy
125 How many physical characteristics of disk systems are there?
- A4
- B5
- C2
- D3
- E6
126Choose the physical characteristic(s) of disk systems
- ADisk system implementstion
- BDisk Size
- CHead Mechanism
- DPlatters
- ESides
127What does RAID stand for?
- ARandom Array of Independent Disks
- BRedundant Array of Independent Disks
- CRedundant Array of Interoperable Disks
- DRandom Access to Independent Disks
128 The RAID scheme consists of 7 levels
- AVerdadeiro
- BFalso
129 Choose the components of SSD
- AController
- BAddressing
- CData buffer/cache
- DData size
- EMemory hierarchy
130 SSD is over 10 times faster than the spinning disks in HDD
- AVerdadeiro
- BFalso
131 SSDs are susceptible to mechanical wear
- AVerdadeiro
- BFalso
132 SSDs are more susceptible to physical shock and vibration
- AVerdadeiro
- BFalso
133 SSD stands for
- ASolid State Drive
- BSolid State Driver
- CSpeed State Drive
- DSpeed State Driver
134Choose the component of SSD for the following definition: provides SSD device level interfacing and firmware execution
- AController
- BAddressing
- CData buffer/cache
- DError correction
- EFlash memory components
135Choose the component of SSD for the following definition: Logic for error detection and correction
- AError Correction
- BAddressing
- CData buffer/cache
- DController
- EFlash memory components
136Choose the component of SSD for the following definition: Individual NAND flash chips
- AFlash Memory Components
- BAddressing
- CData buffer/cache
- DController
- EError Correction
137Choose the component of SSD for the following definition: Logic that performs the selection function across the flash memory components
- AAddressing
- BFlash Memory Components
- CData buffer/cache
- DController
- EError Correction
138Choose the component of SSD for the following definition: High speed RAM memory components used for speed matching and to increased data throughput
- AData buffer/cache
- BFlash Memory Components
- CAddressing
- DController
- EError Correction
139The basic element of a semiconductor memory is the memory cell
- AVerdadeiro
- BFalso
140How external nonvolatile memory is called?
- ASecondary memory
- BMain memory
- CCache memory
- DVirtual memory
141What is included into physical type characteristic of computer memory systems?
- ASemiconductor
- BMagnetic
- CWord
- DAccess Time
- ENumber of bytes
142What is included into performance characteristic of computer memory systems?
- AAccess time
- BCycle Time
- CTransfer Rate
- DWord
- ENumber of bytes
- FNumber of words
143What does IDE stand for?
- AIntegrated Development Environment
- Bффффф
144Choose the characteristics of CISC processors
- Alarge number of instructions
- Bsupport many addressing modes
- Cmore elaborate way of accessing data
- Dless number of instructions
- Einstructions are of fixed length
- Ffew addressing modes
145Choose the characteristics of RISC processors
- Aless number of instructions
- Binstructions are of fixed length
- Cfew addressing modes
- Dlarge number of instructions
- Esupport many addressing modes
- Fmore elaborate way of accessing data
146Choose the characteristics of Von Neumann architecture
- Aone memory for data and program
- BCPU provides address to get data or instructions
- Cdata and instructions must have the same width
- Dseparate busses, can be accessed simultaneously
- Eseparated buses allow one instruction to execute while the next instruction is fetched
- Fdata and instructions mustn’t have the same width
147Choose the characteristics of Harvard architecture
- Aseparate program and data memories
- Bseparated buses allow one instruction to execute while the next instruction is fetched
- Cdata and instructions mustn’t have the same width
- Done memory for data and program
- ECPU provides address to get data or instruction
- Fdata and instructions must have the same width
148Which of the following architectures differs by memory accessing?
- AVon Neumann
- BHarvard
- CComplex Instruction Set Computers
- DReduced Instruction Set Computers
149Choose 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
- AMicrocontroller
- BGeneral purpose microprocessor
150Choose the correct syntax of assembly statements
- Aname operation operand(s) comments
- Boperation name operand(s) comments
- Coperation operand(s) name comments
- Dcomments name operation operand(s)
151The assembler translates names into memory addresses
- AVerdadeiro
- BFalso
152Name field of assembly statement is not case sensitive
- AVerdadeiro
- BFalso
153Choose the legal name(s) in assembly
- A@variable_name
- Bvariable?
- Cvariable&name
- Dvariable name
- E1variable
154In two-operand instruction, the first operand is source and the second operand is destination
- AVerdadeiro
- BFalso
155An instruction may have one or more operands
- AVerdadeiro
- BFalso
156In assembly language you can express data only in binary and decimal
- AVerdadeiro
- BFalso
157You should use a radix symbol in order to differentiate between binary, octal or hexadecimal
- AVerdadeiro
- BFalso
158Which symbol you should use to leave the variable uninitialized
- A?
- B!
- C@
- D$
159In assembly language, you can skip the name of variable
- AVerdadeiro
- BFalso
160Choose the correct syntax of variable declaration in assembly
- Avariable_name type initial_value
- Btype variable_name initial_vaule
- Ctype initial_value variable_name
161Choose the definition of code segment in assembly
- AContains a program’s instructions
- BA block of memory to store a stack
- CAll variable definitions
162Choose the definition of data segment in assembly
- AAll variable definitions
- BA block of memory to store a stack
- CContains a program’s instructions
163Choose the definition of stack segment in assembly
- AA block of memory to store a stack
- BAll variable definitions
- CContains a program’s instructions
164There is no memory allocated for constants in assembly language
- AVerdadeiro
- BFalso
165Which keyword you should use in order to define a constant in assembly language
- AEQU
- BDD
- CCONST
- DEQ
- EDW
166In assembly statement name and comment are mandatory
- AVerdadeiro
- BFalso
167How many deadlock recovery algorithms are there?
- A4
- B3
- C5
- D2
- E1
168There are 3 approaches of deadlock avoidance
- AVerdadeiro
- BFalso
169There are 2 policies of deadlock prevention
- AVerdadeiro
- BFalso
170Choose the correct approach for the following definition "involves recognizing when deadlock has occurred, and trying to recover"
- ADeadlock detection and recovery
- BDeadlock avoidance
- CDeadlock prevention
171Choose the correct approach for the following definition "involves making dynamic choices that guarantee prevention"
- ADeadlock avoidance
- BDeadlock prevention
- CDeadlock detection and recovery
172Choose the correct approach for the following definition "adopting a static policy that disallows one of the four conditions above"
- ADeadlock prevention
- BDeadlock detection and recovery
- CDeadlock avoidance
173There are 4 approaches of dealing with deadlock
- AVerdadeiro
- BFalso
174Choose 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"
- ACircular wait
- BMutual exclusion
- CNo preemption
- DHold and wait
175Choose the correct answer for the following definition: "No process can be forced to release a resource"
- ANo preemption
- BMutual exclusion
- CHold and wait
- DCircular wait
176Choose the correct answer for the following definition "A process may hold some resources while waiting for others"
- AHold and wait
- BMutual exclusion
- CCircular wait
- DNo pre-emption
177Choose the correct answer for the following definition "Only one process may use a resource at one time"
- AMutual exclusion
- BCircular wait
- CNo preemption
- DHold and wait
178How many policy conditions for deadlock to be possible are there?
- A3
- B4
- C2
- D5
- E1
179What is the deadlock?
- APermanent blocking of a set of processes that either compete for global resources or communicate with each other
- BInterleaving of processes in time to give the appearance of simultaneous execution
- CWhen one process is inside a critical section of code, other processes must be prevented from entering that section
- DProcesses “communicate” via global counters that are initialized to a positive integer and that can be accessed only through two atomic operations
180Deadlock 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
181In which of the following approaches there is no shared data?
- AMessage passing
- BMutual exclusion
- CMonitors
- DSemaphores
182Choose the correct answer for the following definition "Synchronization between processes is defined by the blocking policy attached to the sending and receiving of messages"
- AMessage passing
- BMutual exclusion
- CMonitors
- DSemaphores
183Monitors are similar to classes in java and has methods and fields
- AVerdadeiro
- BFalso
184In atomic operations semSignal(x) and semWait(x), what is the 'x'?
- AThe number of processes that can execute critical section
- BThe number of processes
- CThe number of monitors
- DNo correct answer
185When using semaphores, processes communicate using messages
- AVerdadeiro
- BFalso
186We can implement mutex through the OS or using programming languages
- AVerdadeiro
- BFalso
187How many approaches of mutex implementation are there?
- A3
- B4
- C2
- D5
- E1
188Choose 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"
- AMutual exclusion
- BSemaphores
- CMonitors
- DMessage passing
- ECritical section
189In concurrency optimal allocation of resources is difficult
- AVerdadeiro
- BFalso
190In concurrency, locating programming errors can't be difficult, because the contexts in which errors occur cannot always be reproduced easily
- AVerdadeiro
- BFalso
191In concurrency, sharing global resources safely is difficult
- AVerdadeiro
- BFalso
192Concurrency offers genuine simultaneous execution
- AVerdadeiro
- BFalso
193Parallelism is interleaving of processes in time to give the appearance of simultaneous execution
- AVerdadeiro
- BFalso
194Choose the correct answer for the following definition "multiple processes on multiple systems"
- ADistributed processing
- BMultiprogramming
- CMultiprocessing
195Choose the correct answer for the following definition "multiple processes on a system with multiple processors"
- AMultiprocessing
- BMultiprogramming
- CDistributed processing
196Choose the correct answer for the following definition "multiple processes on a system with a single processor"
- AMultiprogramming
- BMultiprocessing
- CDistributed processing
197How many categories of process management are there?
- A3
- B4
- C5
- D2
- E1
Informações
- Descrição
- Quiz sobre Gambit CSGO, criado por Aybek Aybek em 20-12-2017.
- Autor
- Aybek Aybek
- Idioma
- English
- Visualizações
- 51
- Avaliação
- Ainda sem avaliações Avalie este quiz