Questão 1
Questão
A branch-prediction cache that stores the predicted address for the next instruction after a branch
Responda
-
branch target buffer
-
data buffer
-
optical buffer
Questão 2
Questão
Buffering the actual target instructions allows us to perform an optimization which called:
Responda
-
branch folding
-
branch prediction
-
target instructions
-
target address
Questão 3
Questão
Which is not the function of integrated instructions fetch unit:
Responda
-
Instruction memory commit
-
Integrated branch prediction
-
Instruction prefetch
-
Instruction memory access and buffering
Questão 4
Questão
What is the simple technique that predict whether two stores or a load and a store refer to the same memory address:
Questão 5
Questão
What is a topology in interconnection networks?
Responda
-
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
Questão 6
Questão
What is a network diameter?
Responda
-
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
Questão 7
Questão
What is a node degree?
Responda
-
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
Questão 8
Questão
What is a bisection bandwidth?
Responda
-
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
Questão 9
Questão
What is a network throughput?
Responda
-
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
Questão 10
Questão
What is a data routing functions?
Responda
-
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
Questão 11
Questão
What is a hardware cost?
Responda
-
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
-
It is an indicative measure of the message carrying capacity of a network
Questão 12
Questão
What is a blocking and non-blocking network?
Responda
-
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
-
It is and indicative measure of the message carrying capacity of a network
Questão 13
Questão
Design issue of interconnection network?
Responda
-
Software Cost
-
Hardware Cost
-
RLP
-
Symmetry of the network
Questão 14
Questão
Design issue of interconnection network (нет ответа в базе)
Questão 15
Questão
What is the Message Size?
Responda
-
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
-
How much data a processor can send in one time unit
-
It is and indicative measure of the message carrying capacity of a network
Questão 16
Questão
What is a Data transfer time?
Responda
-
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
-
It is and indicative measure of the message carrying capacity of a network
Questão 17
Questão
Select two-dimensional network (в какой то базе interconnection network)
Responda
-
Mesh
-
Linear Array
-
Cross Bar
Questão 18
Questão
Select multi-dimensional network (в какой то базе interconnection network)
Responda
-
Linear Array
-
Cross Bar
-
Cube
Questão 19
Questão
Select multi-dimensional network (в какой то базе interconnection network)
Responda
-
Linear Array
-
Cross Bar
-
Hyper Cube
Questão 20
Questão
Select non-blocking network (в какой то базе interconnection network)
Responda
-
Linear Array
-
Cube
-
Cross Bar
Questão 21
Questão
A modified version of the tree network (в какой то базе interconnection network)
Responda
-
Fat tree
-
Cube
-
Linear Array
Questão 22
Questão
A interconnection network is a type of pipelined array architecture and it is designed for multidimensional flow of data
Responda
-
Systolic Array
-
Cube
-
Linear Array
Questão 23
Questão
A _____________ interconnection network is a type of pipelined array architecture and it is designed for multidimensional flow of data
Responda
-
Hyper cube
-
Cube
-
Linear array
Questão 24
Questão
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
Responda
-
Multithreading
-
Computing
-
Array processing
Questão 25
Questão
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
Responda
-
Multithreading
-
Vector processes
-
Computing
-
Array processing
Questão 26
Questão
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
Responda
-
Multithreading
-
Branch
-
Prediction
-
Array processing
Questão 27
Questão
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
Responda
-
Multithreading
-
Branch
-
Branch Prediction
Questão 28
Questão
________________ optimization technique where a computer system performs some task that may not be actually needed
Responda
-
Multithreading
-
Branch
-
Speculative execution
Questão 29
Questão
Select two-dimensional network
Responda
-
Mesh
-
Linear array
-
Cross bar
Questão 30
Questão
Single instruction, single data (SISD)
Responda
-
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
Questão 31
Questão
In serial computing
Responda
-
Multithreading instructions from each part execute simultaneously on different processors
-
Instructions are executed sequentially one after another
-
A problem is broken into discrete parts that can be solved concurrently
Questão 32
Questão
In parallel computing
Responda
-
Multithreading instructions from each part execute simultaneously on different processors
-
Instructions are executed sequentially one after another
-
A problem is broken into discrete parts that can be solved concurrently
Questão 33
Responda
-
From a strictly hardware point of view, describes a computer architecture where all processors have direct(usually bus based ) access to common physical memory
-
A logically discrete section of computational work
-
Breaking a task into steps performed by different processor units, with inputs streaming through much like an assembly line
Questão 34
Questão
Massively parallel . . .
Responda
-
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
Questão 35
Questão
Embarrassingly parallel . . .
Responda
-
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
Questão 36
Questão
Network performance depends of what?
Questão 37
Questão
Which one is not the major flavor of Multiple-issue processors:
Responda
-
statistically superscalar processors
-
dynamically scheduled superscalar processors
-
statically scheduled superscalar processors
-
VLIW (very long instruction word) processors
Questão 38
Questão
A _____________ interconnection network is an extension of cube network
Responda
-
Hyper Cube
-
Cube
-
Linear Array
Questão 39
Responda
-
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
Questão 40
Questão
What is Personal mobile device (PMD)?
Responda
-
A collection of wireless devices with multimedia user interfaces
-
A collection of computers with wireless network adapters
-
A collection of Clusters/Warehouse-scale computers
Questão 41
Questão
Where the embedded microprocessors are used?
Questão 42
Questão
What functions has Instruction Set Architecture (ISA)?
Responda
-
Serves as the boundary between the software and hardware
-
Serves as the bridge between CPU and Memory
-
Serves as the bridge between CPU and Cache
Questão 43
Questão 44
Questão
By Moore's law, growth rate in transistor count on a chip is doubling?
Responda
-
every 8 to 12 months
-
every 12 to 16 months
-
every 18 to 24 months
Questão 45
Questão
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?
Questão 46
Questão
What is the “Module reliability” in Dependability?
Responda
-
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
Questão 47
Questão
What is response time?
Responda
-
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
Questão 48
Questão
The guiding principle of reporting performance measurements should be?
Responda
-
reproducibility
-
responsibility
-
creativity
Questão 49
Questão
What is Temporal Locality?
Responda
-
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
Questão 50
Questão
What is Spatial Locality?
Responda
-
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
Questão 51
Questão
What is Amdahl's law?
Responda
-
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
Questão 52
Questão
The most popular scheme is set associative, where a set is?
Responda
-
a group of blocks
-
a group of instructions
-
a group of comparatives
Questão 53
Questão
The three Cs model sorts all misses into three simple categories: Compulsory, Capacity, Conflict. What is Compulsory?
Responda
-
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
Questão 54
Questão
The three Cs model sorts all misses into three simple categories: Compulsory, Capacity, Conflict. What is Capacity?
Responda
-
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
Questão 55
Questão
The three Cs model sorts all misses into three simple categories: Compulsory, Capacity, Conflict. What is Conflict?
Responda
-
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
Questão 56
Questão
The “natural” unit of organization of memory
Responda
-
Word
-
Document
-
Several Computer
Questão 57
Questão
Main element of cache memory is …
Questão 58
Questão
Typical levels of Cache memories …
Questão 59
Questão
Select internal memory …
Responda
-
Hard Disk
-
CD-ROM
-
Processor registers
Questão 60
Questão
Select internal memory
Responda
-
Hard Disk
-
Optical disk
-
Main memory
Questão 61
Questão
Select internal memory
Responda
-
Cache
-
Magnetic tape
-
Optical disks
Questão 62
Questão
Select external memory?
Responda
-
Processor registers
-
Cache
-
Main memory
-
Hard disks
Questão 63
Questão
Select external memory
Responda
-
Optical Disk
-
Cache level 1
-
Registers of processor
Questão 64
Questão
Select external memory
Responda
-
Magnetic tape
-
Main memory
-
All cache memories
Questão 65
Questão
Physical types of memories:
Responda
-
Direct, Random
-
Direct, Access time
-
Semiconductor, Optical
Questão 66
Questão
Physical types of memories:
Responda
-
Semiconductor, Magnetic
-
Word, Block
-
Direct, Random
Questão 67
Questão
Physical types of memories:
Responda
-
Magneto-optical
-
Number of words
-
Number of bytes
Questão 68
Questão
Select correct memory hierarchy:
Responda
-
Cache – Main Memory – Secondary storages
-
Secondary storages - Cache – Main Memory
-
Main Memory – Cache - Secondary storages
Questão 69
Questão
Select correct memory hierarchy:
Responda
-
Processor registers – Cache memory – Main memory
-
Cache memory – Main memory - Processor registers
-
Cache memory – Processor registers - Main memory
Questão 70
Questão
External, nonvolatile memory is also referred to as …
Responda
-
auxiliary memory
-
Main memory
-
Levels of cache
Questão 71
Questão
Types of cache addresses
Responda
-
Logical, Physical
-
Direct, Associative
-
Set Associative
Questão 72
Questão
A logical cache stores data using …
Questão 73
Questão
The two basic forms of semiconductor random access memory are
Questão 74
Questão
Main element of cache memory
Questão 75
Questão
A number of chips can be grouped together to form …
Responda
-
a memory bank
-
a memory tags
-
a memory linis
Questão 76
Questão
Data are recorded on and later retrieved from the disk via a conducting coil named
Responda
-
The arm
-
The slid
-
The head
Questão 77
Questão
The information can then be scanned at the same rate by rotating the disk at a fixed speed, known as …
Questão 78
Questão
To increase density, modern hard disk systems use a technique known as
Questão 79
Questão
… can be removed and replaced with another disk.
Responda
-
Processor registers
-
A nonremovable disk
-
A removable disk
Questão 80
Questão
For most disks, the magnetizable coating is applied to both sides of the platter, which is then referred to as ...
Responda
-
double sided
-
single sided
-
no sides
Questão 81
Questão
The set of all the tracks in the same relative position on the platter is referred to as …
Responda
-
a cylinder
-
a square
-
a circle
Questão 82
Questão
On a movable head system, the time it takes to position the head at the track is known as …
Responda
-
transfer time
-
access time
-
seek time
Questão 83
Questão
The operating system …
Responda
-
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
Questão 84
Questão
The most important functions of the Operating System are
Responda
-
The scheduling of processes, or tasks
-
Compile C++ program codes
-
Interpret PHP program codes
-
Provide drivers for the remote devices
Questão 85
Questão
The important function of the Operating System is
Questão 86
Questão
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…
Responda
-
Program execution
-
Access to I/O devices
-
Program creation
Questão 87
Questão
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.
Responda
-
Program creation
-
Access to I/O devices
-
Program execution
Questão 88
Questão
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.
Responda
-
Access to I/O devices
-
Program execution
-
Program creation
Questão 89
Questão
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.
Questão 90
Questão
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.
Questão 91
Questão
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.
Questão 92
Questão
Select two independent dimensions of the Operating System
Questão 93
Questão
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.
Questão 94
Questão
Select ARM Memory-Management Parameter according to this description. Determines, with the TEX bits, how the write buffer is used for cacheable memory.
Responda
-
Bufferable (B) bit
-
Cacheable (C) bit
-
Type Extension (TEX)
Questão 95
Questão
What is a latency?
Responda
-
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