13890751
Pregunta 1
Pregunta
A branch-prediction cache that stores the predicted address for the next instruction after a branch
Respuesta
-
branch target buffer
-
data buffer
-
optical buffer
Pregunta 2
Pregunta
Buffering the actual target instructions allows us to perform an optimization which called:
Respuesta
-
branch folding
-
branch prediction
-
target instructions
-
target address
Pregunta 3
Pregunta
Which is not the function of integrated instructions fetch unit:
Respuesta
-
Instruction memory commit
-
Integrated branch prediction
-
Instruction prefetch
-
Instruction memory access and buffering
Pregunta 4
Pregunta
What is the simple technique that predict whether two stores or a load and a store refer to the same memory address:
Respuesta
-
Address aliasing prediction
-
Branch prediction
-
Integrated branch prediction
Pregunta 5
Pregunta
What is a topology in interconnection networks?
Respuesta
-
It indicates how the nodes a network are organised
-
It is the minimum distance between the farthest nodes in a network
-
Number of edges connected with a node is called node degree
Pregunta 6
Pregunta
What is a network diameter?
Respuesta
-
It is the minimum distance between the farthest nodes in a network
-
It indicates how the nodes a network are organised
-
Number of edges connected with a node is called node degree
Pregunta 7
Pregunta
What is a node degree?
Respuesta
-
Number of edges connected with a node is called node degree
-
It indicates how the nodes a network are organised
-
It is the minimum distance between the farthest nodes in a network
Pregunta 8
Pregunta
What is a bisection bandwidth?
Respuesta
-
Number of edges required to be cut to divide a network into two halves is called bisection bandwidth
-
It indicates how the nodes a network are organised
-
It is the minimum distance between the farthest nodes in a network
Pregunta 9
Pregunta
What is a network throughput?
Respuesta
-
It indicates how the nodes a network are organised
-
It is delay in transferring the message between two nodes
-
It is indicative measure of the message carrying capacity of a network
-
It is the minimum distance between the farthest nodes in a network
Pregunta 10
Pregunta
What is a data routing functions?
Respuesta
-
The functions which when executed establish the path between the source & destination
-
It is indicative measure of the message carrying capacity of a network
-
It is the minimum distance between the farthest nodes in a network
Pregunta 11
Pregunta
What is a hardware cost?
Respuesta
-
It indicates how the nodes a network are organised
-
The data routing functions are the functions which when executed establish the path between the source and the destination
-
It refers to the cost involved in the implementation of an interconnection network
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It is an indicative measure of the message carrying capacity of a network
Pregunta 12
Pregunta
What is a blocking and non-blocking network?
Respuesta
-
It indicates how the nodes a network are organized
-
The data routing functions are the functions which when executed establish the path between the source and the destination
-
network In non-blocking networks the route from any free input node to any free output node can always be provided
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It is and indicative measure of the message carrying capacity of a network
Pregunta 13
Pregunta
Design issue of interconnection network?
Respuesta
-
Software Cost
-
Hardware Cost
-
RLP
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Symmetry of the network
Pregunta 14
Pregunta
Design issue of interconnection network (нет ответа в базе)
Respuesta
-
Dimension and size of network
-
Broadcast and Multicast
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Hardware Cost
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RLP
Pregunta 15
Pregunta
What is the Message Size?
Respuesta
-
It indicates how the nodes a network are organized
-
The data routing functions are the functions which when executed establish the path between the source and the destination
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How much data a processor can send in one time unit
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It is and indicative measure of the message carrying capacity of a network
Pregunta 16
Pregunta
What is a Data transfer time?
Respuesta
-
It indicates how the nodes a network are organized
-
The data routing functions are the functions which when executed establishe the path between the source and the destination
-
How long does it take for a message to reach to another processor
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It is and indicative measure of the message carrying capacity of a network
Pregunta 17
Pregunta
Select two-dimensional network (в какой то базе interconnection network)
Respuesta
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Mesh
-
Linear Array
-
Cross Bar
Pregunta 18
Pregunta
Select multi-dimensional network (в какой то базе interconnection network)
Respuesta
-
Linear Array
-
Cross Bar
-
Cube
Pregunta 19
Pregunta
Select multi-dimensional network (в какой то базе interconnection network)
Respuesta
-
Linear Array
-
Cross Bar
-
Hyper Cube
Pregunta 20
Pregunta
Select non-blocking network (в какой то базе interconnection network)
Respuesta
-
Linear Array
-
Cube
-
Cross Bar
Pregunta 21
Pregunta
A modified version of the tree network (в какой то базе interconnection network)
Respuesta
-
Fat tree
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Cube
-
Linear Array
Pregunta 22
Pregunta
A interconnection network is a type of pipelined array architecture and it is designed for multidimensional flow of data
Respuesta
-
Systolic Array
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Cube
-
Linear Array
Pregunta 23
Pregunta
A _____________ interconnection network is a type of pipelined array architecture and it is designed for multidimensional flow of data
Respuesta
-
Hyper cube
-
Cube
-
Linear array
Pregunta 24
Pregunta
In computer architecture, __________ is the ability of central processing unit (CPU) or a single core in a multi-core processor to execute multiple processes or threads concurrently, appropriately supported by the operating system
Respuesta
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Multithreading
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Computing
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Array processing
Pregunta 25
Pregunta
In computing, a __________ is a central processing unit(CPU) that implements an instruction set containing instructions that operate on one-dimensional arrays of data called vectors compared to scalar processors, whose instructions operate in a single data items
Respuesta
-
Multithreading
-
Vector processes
-
Computing
-
Array processing
Pregunta 26
Pregunta
A _________ is an instruction in a computer program that can cause a computer to begin executing a different instruction sequence and thus deviate from its default behaviour of executing instructions in order
Respuesta
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Multithreading
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Branch
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Prediction
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Array processing
Pregunta 27
Pregunta
A __________ is a digital circuit that tries to guess which way a branch (e.g. an if-then-else structure) will go before this is known for sure
Respuesta
-
Multithreading
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Branch
-
Branch Prediction
Pregunta 28
Pregunta
________________ optimization technique where a computer system performs some task that may not be actually needed
Respuesta
-
Multithreading
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Branch
-
Speculative execution
Pregunta 29
Pregunta
Select two-dimensional network
Respuesta
-
Mesh
-
Linear array
-
Cross bar
Pregunta 30
Pregunta
Single instruction, single data (SISD)
Respuesta
-
only one instruction stream is being acted on by the CPU during any one clock cycle
-
a type of parallel computer
-
Currently the most common type of parallel computer - most modern supercomputers fall into this category
Pregunta 31
Pregunta
In serial computing
Respuesta
-
Multithreading instructions from each part execute simultaneously on different processors
-
Instructions are executed sequentially one after another
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A problem is broken into discrete parts that can be solved concurrently
Pregunta 32
Pregunta
In parallel computing
Respuesta
-
Multithreading instructions from each part execute simultaneously on different processors
-
Instructions are executed sequentially one after another
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A problem is broken into discrete parts that can be solved concurrently
Pregunta 33
Pregunta
Shared memory …
Respuesta
-
From a strictly hardware point of view, describes a computer architecture where all processors have direct(usually bus based ) access to common physical memory
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A logically discrete section of computational work
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Breaking a task into steps performed by different processor units, with inputs streaming through much like an assembly line
Pregunta 34
Pregunta
Massively parallel . . .
Respuesta
-
From a strictly hardware point of view, describes a computer architecture where all processors have direct(usually bus based ) access to common physical memory
-
Refers to the hardware that comprises a given parallel system - having many processing elements
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Solving many similar but independent tasks simultaneously, little to no need for coordination between the tasks
Pregunta 35
Pregunta
Embarrassingly parallel . . .
Respuesta
-
From a strictly hardware point of view, describes a computer architecture where all processors have direct(usually bus based ) access to common physical memory
-
Refers to the hardware that comprises a given parallel system - having many processing elements
-
Solving many similar but independent tasks simultaneously, little to no need for coordination between the tasks
Pregunta 36
Pregunta
Network performance depends of what?
Respuesta
-
performance of switches and transmission system
-
performance of switches
-
performance of transmission system
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has no dependencies
Pregunta 37
Pregunta
Which one is not the major flavor of Multiple-issue processors:
Respuesta
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statistically superscalar processors
-
dynamically scheduled superscalar processors
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statically scheduled superscalar processors
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VLIW (very long instruction word) processors
Pregunta 38
Pregunta
A _____________ interconnection network is an extension of cube network
Respuesta
-
Hyper Cube
-
Cube
-
Linear Array
Pregunta 39
Pregunta
Pipelining …
Respuesta
-
Breaking a task into steps performed by different processor units, with inputs streaming through, much like an assembly line
-
A logically discrete section of computational work
-
From a strictly hardware point of view, describes a computer architecture where all processors have direct (usually bus based) access to common physical memory
Pregunta 40
Pregunta
What is Personal mobile device (PMD)?
Respuesta
-
A collection of wireless devices with multimedia user interfaces
-
A collection of computers with wireless network adapters
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A collection of Clusters/Warehouse-scale computers
Pregunta 41
Pregunta
Where the embedded microprocessors are used?
Respuesta
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In microwaves, washing machines
-
In Personal Computers
-
In mobile phones
Pregunta 42
Pregunta
What functions has Instruction Set Architecture (ISA)?
Respuesta
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Serves as the boundary between the software and hardware
-
Serves as the bridge between CPU and Memory
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Serves as the bridge between CPU and Cache
Pregunta 43
Pregunta
What is the TLP?
Respuesta
-
Time Level Parallelism
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Technology Level Parallelism
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Task Level Parallelism
Pregunta 44
Pregunta
By Moore's law, growth rate in transistor count on a chip is doubling?
Respuesta
-
every 8 to 12 months
-
every 12 to 16 months
-
every 18 to 24 months
Pregunta 45
Pregunta
How should a system architect or a user think about performance, power, and energy? From the viewpoint of a system designer, how many concerns are there?
Respuesta
-
3
-
2
-
4
Pregunta 46
Pregunta
What is the “Module reliability” in Dependability?
Respuesta
-
a measure of the continuous service accomplishment from a reference initial instant
-
a measure of the service accomplishment with respect to the alternation between the two states of accomplishment and interruption.
-
a measure of the interruption
Pregunta 47
Pregunta
What is response time?
Respuesta
-
the time between the start and the completion of an event
-
The time to get an information
-
The time spent on execution of a program
Pregunta 48
Pregunta
The guiding principle of reporting performance measurements should be?
Respuesta
-
reproducibility
-
responsibility
-
creativity
Pregunta 49
Pregunta
What is Temporal Locality?
Respuesta
-
recently accessed items are likely to be accessed in the near future
-
items whose addresses are near one another tend to be referenced close together in time
-
the nearest data stored in secondary memory
Pregunta 50
Pregunta
What is Spatial Locality?
Respuesta
-
items whose addresses are near one another tend to be refer¬enced close together in time
-
recently accessed items are likely to be accessed in the near future
-
the nearest data stored in secondary memory
Pregunta 51
Pregunta
What is Amdahl's law?
Respuesta
-
Defines the speedup that can be gained by using a particular feature
-
Defines time spent on execution of a program
-
Defines data gained in one operation
Pregunta 52
Pregunta
The most popular scheme is set associative, where a set is?
Respuesta
-
a group of blocks
-
a group of instructions
-
a group of comparatives
Pregunta 53
Pregunta
The three Cs model sorts all misses into three simple categories: Compulsory, Capacity, Conflict. What is Compulsory?
Respuesta
-
The very first access to a block cannot be in the cache, so the block must be brought into the cache
-
If the cache cannot contain all the blocks needed during execution of a program
-
If the block placement strategy is not fully associative
Pregunta 54
Pregunta
The three Cs model sorts all misses into three simple categories: Compulsory, Capacity, Conflict. What is Capacity?
Respuesta
-
If the cache cannot contain all the blocks needed during execution of a program
-
The very first access to a block cannot be in the cache, so the block must be brought into the cache
-
If the block placement strategy is not fully associative
Pregunta 55
Pregunta
The three Cs model sorts all misses into three simple categories: Compulsory, Capacity, Conflict. What is Conflict?
Respuesta
-
If the block placement strategy is not fully associative
-
The very first access to a block cannot be in the cache, so the block must be brought into the cache
-
If the cache cannot contain all the blocks needed during execution of a program
Pregunta 56
Pregunta
The “natural” unit of organization of memory
Respuesta
-
Word
-
Document
-
Several Computer
Pregunta 57
Pregunta
Main element of cache memory is …
Respuesta
-
Line
-
Word
-
String
Pregunta 58
Pregunta
Typical levels of Cache memories …
Respuesta
-
1,2,3 levels
-
1,2,3,4,5 levels
-
Cache memories have no levels
Pregunta 59
Pregunta
Select internal memory …
Respuesta
-
Hard Disk
-
CD-ROM
-
Processor registers
Pregunta 60
Pregunta
Select internal memory
Respuesta
-
Hard Disk
-
Optical disk
-
Main memory
Pregunta 61
Pregunta
Select internal memory
Respuesta
-
Cache
-
Magnetic tape
-
Optical disks
Pregunta 62
Pregunta
Select external memory?
Respuesta
-
Processor registers
-
Cache
-
Main memory
-
Hard disks
Pregunta 63
Pregunta
Select external memory
Respuesta
-
Optical Disk
-
Cache level 1
-
Registers of processor
Pregunta 64
Pregunta
Select external memory
Respuesta
-
Magnetic tape
-
Main memory
-
All cache memories
Pregunta 65
Pregunta
Physical types of memories:
Respuesta
-
Direct, Random
-
Direct, Access time
-
Semiconductor, Optical
Pregunta 66
Pregunta
Physical types of memories:
Respuesta
-
Semiconductor, Magnetic
-
Word, Block
-
Direct, Random
Pregunta 67
Pregunta
Physical types of memories:
Respuesta
-
Magneto-optical
-
Number of words
-
Number of bytes
Pregunta 68
Pregunta
Select correct memory hierarchy:
Respuesta
-
Cache – Main Memory – Secondary storages
-
Secondary storages - Cache – Main Memory
-
Main Memory – Cache - Secondary storages
Pregunta 69
Pregunta
Select correct memory hierarchy:
Respuesta
-
Processor registers – Cache memory – Main memory
-
Cache memory – Main memory - Processor registers
-
Cache memory – Processor registers - Main memory
Pregunta 70
Pregunta
External, nonvolatile memory is also referred to as …
Respuesta
-
auxiliary memory
-
Main memory
-
Levels of cache
Pregunta 71
Pregunta
Types of cache addresses
Respuesta
-
Logical, Physical
-
Direct, Associative
-
Set Associative
Pregunta 72
Pregunta
A logical cache stores data using …
Respuesta
-
virtual addresses
-
virtual addresses and physical addresses
-
Physical addresses
Pregunta 73
Pregunta
The two basic forms of semiconductor random access memory are
Respuesta
-
dynamic RAM (DRAM) and static RAM (SRAM)
-
magnetic and optical
-
Winchester and optical disks
Pregunta 74
Pregunta
Main element of cache memory
Respuesta
-
Tag
-
Word
-
String
Pregunta 75
Pregunta
A number of chips can be grouped together to form …
Respuesta
-
a memory bank
-
a memory tags
-
a memory linis
Pregunta 76
Pregunta
Data are recorded on and later retrieved from the disk via a conducting coil named
Respuesta
-
The arm
-
The slid
-
The head
Pregunta 77
Pregunta
The information can then be scanned at the same rate by rotating the disk at a fixed speed, known as …
Respuesta
-
multiple zoned recording
-
intersector gap
-
the constant angular velocity
Pregunta 78
Pregunta
To increase density, modern hard disk systems use a technique known as
Respuesta
-
multiple zone recording
-
the constant angular velocity
Pregunta 79
Pregunta
… can be removed and replaced with another disk.
Respuesta
-
Processor registers
-
A nonremovable disk
-
A removable disk
Pregunta 80
Pregunta
For most disks, the magnetizable coating is applied to both sides of the platter, which is then referred to as ...
Respuesta
-
double sided
-
single sided
-
no sides
Pregunta 81
Pregunta
The set of all the tracks in the same relative position on the platter is referred to as …
Respuesta
-
a cylinder
-
a square
-
a circle
Pregunta 82
Pregunta
On a movable head system, the time it takes to position the head at the track is known as …
Respuesta
-
transfer time
-
access time
-
seek time
Pregunta 83
Pregunta
The operating system …
Respuesta
-
is the software that controls the execution of programs on a processor and that manages the processor’s resources.
-
is one which is understandable by us humans
-
is a collection of Clusters/Warehouse-scale computers
-
a program that directly executes instructions written in a programming language
Pregunta 84
Pregunta
The most important functions of the Operating System are
Respuesta
-
The scheduling of processes, or tasks
-
Compile C++ program codes
-
Interpret PHP program codes
-
Provide drivers for the remote devices
Pregunta 85
Pregunta
The important function of the Operating System is
Respuesta
-
Memory management
-
Provide compiler for high level programming languages
-
Increase size of cache
Pregunta 86
Pregunta
How is the following service called? The Operating System provides a variety of facilities and services, such as editors and debuggers, to assist the programmer in creating programs…
Respuesta
-
Program execution
-
Access to I/O devices
-
Program creation
Pregunta 87
Pregunta
How is the following service called? A number of tasks need to be performed to execute a program. Instructions and data must be loaded into main memory, I/O devices and files must be initialized, and other resources must be prepared. The Operating System handles all of this for the user.
Respuesta
-
Program creation
-
Access to I/O devices
-
Program execution
Pregunta 88
Pregunta
How is the following service called? Each I/O device requires its own specific set of instructions or control signals for operation. The Operating System takes care of the details so that the programmer can think in terms of simple reads and writes.
Respuesta
-
Access to I/O devices
-
Program execution
-
Program creation
Pregunta 89
Pregunta
How is the following service called? In the case of a shared or public system, the Operating System controls access to the system as a whole and to specific system resources.
Respuesta
-
Controlled access to files
-
Access to I/O devices
-
System access
Pregunta 90
Pregunta
How is the following service called? These are internal and external hardware errors, such as a memory error, or a device failure or malfunction; and various software errors, such as arithmetic overflow, attempt to access forbidden memory location, and inability of the OS to grant the request of an application. In each case, the Operating System must make the response that clears the error condition with the least impact on running applications.
Respuesta
-
Error detection and response
-
System access
-
Controlled access to files
Pregunta 91
Pregunta
How is the following service called? A good Operating System collects usage statistics for various resources and monitor performance parameters such as response time. On any system, this information is useful in anticipating the need for future enhancements and in tuning the system to improve performance.
Respuesta
-
Accounting
-
System access
-
Controlled access to files
Pregunta 92
Pregunta
Select two independent dimensions of the Operating System
Respuesta
-
batch and interactive
-
batch and computer operator
-
Interactive and computer operator
Pregunta 93
Pregunta
Select the ARM Memory-Management Parameter according to this description. These bits control access to the corresponding memory region. If an access is made to an area of memory without the required permissions, a Permission Fault is raised.
Respuesta
-
Access Permission (AP), Access Permission Extension (APX)
-
Bufferable (B) bit
-
Cacheable (C) bit
Pregunta 94
Pregunta
Select ARM Memory-Management Parameter according to this description. Determines, with the TEX bits, how the write buffer is used for cacheable memory.
Respuesta
-
Bufferable (B) bit
-
Cacheable (C) bit
-
Type Extension (TEX)
Pregunta 95
Pregunta
What is a latency?
Respuesta
-
It indicates how the nodes a network are organized
-
It is the delay in transferring the message between two nodes
-
It is the minimum distance between the farthest nodes in a network
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