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Computing infrastructures 🔋 > Vero o Falso > Flashcards

Vero o Falso Flashcards

1
Q

In the context of rack servers, 1U is 44.45cm

A

False

One rack unit (1U) is equal to 1.75 inches or approximately 4.45 cm

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2
Q

Warehouse-scale computers run a large number of very small applications

A

False

WSC run a small number of very large applications (or internet service)

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3
Q

Racks shelves are used to store servers and other IT equipments

A

True

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4
Q

In warehouse-scale computers the software running on these systems executes on clusters of hundreds to thousands of individual servers

A

True

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5
Q

Warehouse-scale computers belong to a single organization, use a relatively homogeneous hardware
and system software platform, and share a common systems management layer

A

True

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6
Q

All faults occurring in a system cause a failure of the system

A

False

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7
Q

In a data center for AI, servers includes both general purpose CPUs and accelerators (such as
GPUs, TPUs and FPGAs)

A

True

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8
Q

NVlink is a low-bandwidth connection among Graphical Processing Units

A

False

It is an high-bandwidtth connection

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9
Q

Graphical Processing Units support data-parallel computation

A

True

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10
Q

A deep neural-network cannot be trained on multiple Graphical Processing Units

A

False

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11
Q

Tower servers can be cooled easily

A

True

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12
Q

Racks servers have a cable management that is more complex than Tower ones

A

False

Cable management is more complicated in tower servers

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13
Q

Racks shelves may contain switches

A

True

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14
Q

The need for a constant Internet connection is one of the advantages of data centers

A

False

It is a disadvantage

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15
Q

The program in warehouse-scale computing is a service provided by internet

A

True

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16
Q

Traditional data centers can host hardware and software for multiple organizational units or different companies

A

True

17
Q

Data centers are buildings where multiple servers and communication units are co-located

A

True

18
Q

Servers in data centers are like regular personal-computers with the same form factor

A

False

They have different form factors and hardware

19
Q

In datacenter storage context, DAS means Distributed Application Storage

A

False

Direct Attached Storage

20
Q

In the context of SSDs, Pages are the smallest unit that can be erased

A

False

Block, which consists in multiple pages

21
Q

Seek delay is the time to move the read head to the desired track

A

True

22
Q

In the context of SSDs, Pages are the smallest unit that can be read/written

A

True

23
Q

In the context of SSDs, Blocks are the smallest unit that can be read/written

A

False

Pages are the smallest units that can be written/read

24
Q

Rotational delay is the time needed by the disk to place the desired sector under the read head

A

True

25
Q

Traditional data centers typically host a large number of relatively small- or medium-sized applications

A

True

26
Q

Rack, blade and towers are form factor of servers in data centers

A

True

27
Q

An Edge Computing system provide higher performance (in terms of memory and computation)
than Internet-of-Things devices

A

True

28
Q

Warehouse-scale computers comprise important components related to power delivery, cooling, and
building infrastructure

A

True

29
Q

Rack servers need additional cooling systems due to their high overall component density

A

True

30
Q

In datacenter network, TOR refers to top-of-rack switches

A

True

31
Q

Is the Java Runtime Environment an example of system virtual machine?

A

False

32
Q

Tower servers consumes less space than rack and blade

A

False

They consume more space since thery are like PCs

33
Q

Data centers are well suited for real-time decisions in autonomous car context

A

False

They are not suited for fast decisions

Computing infrastructures 🔋 (2 decks)

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