in the following query, what nodes does the "[:KNOWS]" match?

bidirectionally (matches nodes going to or coming from ee)

What does a top of rack switch do?

connects servers in a rack, and those servers to data centre network

In the tech stack for hypervisors, where do hypervisors sit?

below VMs but above the hardware

Which of the following is NOT a benefit of virtualization?

Providing complete and robust application isolation

The following Cypher code creates KNOWS relationships between nodes. What are the things in squiggly brackets?

attributes of the relationships

What do the first 3 pairs of a MAC address represent

OUI (Organizationally Unique identifier)

Which of the following is true

switches connect devices in a network, routers connect networks together

which of the following is the most accurate about the linux kernel?

manages hardware resources of apps through system calls

which of these is a property of Storage Area Networks (SANs)?

easily extended because adding storage does not disrupt the SAN

Using cypher, create two people (Alice and Bob), and create a relationship where ”Alice follows bob"

CREATE (a:Person {name: ’Alice’})-[:FOLLOWS]->(b:Person {name: ’Bob’})

Regarding virtualisation, which of the following is most correct

Type 1 hypervisors have lower overhead than Type 2

Out of the kernel, CPU, filesystems module, device modules, devices and memory. Which is NOT in kernel space?

they are all in the kernel space

Virtualisation reduces the needed for physical hardware. What else is a benefit of virtualisation?

all of the answers are valid benefits

Why are data centres built using commodity hardware?

cost-effective and readily available, with easily replaceable parts

The user space is where applications are run. What else is a property of the user space?

processes in it must communicate with the kernel for resources

studbud

COMP315 - Cloud Computing - Servers, hardware, storage, databases

35 termsStudBud Administration2 plays

Imported from external platform

Flashcards35 cardsFPractice quizPHost liveL

Questions 35

Answers

1
Which type of hypervisor runs on a host operating system?
Type 2
Type 3
Type 1
Type 4
2
Which type of hypervisor runs directly on the host's hardware?
Type 3
Type 4
Type 2
Type 1
3
How many rows and columns are formed when we perform an SQL join operation by DepartmentID on the following table?
5 rows, 3 columns
4 rows, 3 columns
no rows and no columns since it would produce an error
10 rows, 2 columns
4
in the following query, what nodes does the "[:KNOWS]" match?
from ee to itself
bidirectionally (matches nodes going to or coming from ee)
only nodes that have incoming relations from ee
nodes that are connected to nodes that KNOWS ee
5
What happens if a single component (such as the NIC) fails on a NAS (Network Attached Storage)?
data can still be accessed
data will be shared to other components
no data can be accessed
data will be lost
6
What does a top of rack switch do?
routes traffic between different networks in separate data centres
replace routers by handling routing outsidethe rack environment
provides firewalls, so no need for firewalls in a rack
connects servers in a rack, and those servers to data centre network
7
In the tech stack for hypervisors, where do hypervisors sit?
below the applications but above the VMs
below the VMs but above the applications
below VMs but above the hardware
below the hardware
8
what Cypher clause can be used to query for a specific pattern of nodes and relationships in Neo4j
MATCH
SELECT
FIND
GET
9
Which of the following is NOT a benefit of virtualization?
Easing deployment and management of IT environments
Maximising resource utilisation
Reducing the need for physical hardware
Providing complete and robust application isolation
10
What happens if a disk array, switch or server fails on a SAN (Storage Area Network)?
data will be shared to other components
no data can be accessed
all data will be corrupted
data can still be accessed
11
which of the following is present in user space but NOT in kernel space
applications
CPU
devices
memory
12
Which of these best describes the kernel space?
all of the answers are correct
code in it is run in a protected area, ensuring stability and security
code running in it has complete access to hardware
it is where the kernel operates
13
The following Cypher code creates KNOWS relationships between nodes. What are the things in squiggly brackets?
attributes of each node in the relationship
label of the relationship
type of the relationship
attributes of the relationships
14
In the following Cypher query, what is "(ee:Person)"?
a node with label Person
a node with label ee that is of type Person
a node called ee
a node called ee with label Person
15
What do the first 3 pairs of a MAC address represent
NIC subnet mask
OA (Organization address)
NIC-Specific identifier
OUI (Organizationally Unique identifier)
16
Which of the following is true
switches connect both devices and networks together
routers connect devices in a network, switches connect networks together
routers connect both devices and networks together
switches connect devices in a network, routers connect networks together
17
which of the following is the most accurate about the linux kernel?
operates in user space so drivers can't affect system functions
manages hardware resources of apps through system calls
can only be compiled and distributed by the original creator
bypasses the need for a hypervisor since it can create and manage VMs
18
Which of these describes the role of an operating system
all of the answers are correct
Allocates resource like CPU, memory I/O devices
offers a user interface
controls the creation, deletion and access of files
19
which of these is a property of Storage Area Networks (SANs)?
easily extended because adding storage does not disrupt the SAN
connects users to the internet using distributed DNS routing
uses local hard drives attached directly to each server
shares files over HTTP or FTP protocols for general access
20
Which of the following is NOT a function performed by a kernel
interacts with hardware through device drivers
manages memory allocation and deallocation
provides a GUI for software
handles creation and termination of processes
21
Using cypher, create two people (Alice and Bob), and create a relationship where ”Alice follows bob"
CREATE (a:Person {name: ’Alice’})-[:FOLLOWS]->(b:Person {name: ’Bob’})
INSERT (a:Person {name: ’Alice’}), (b:Person {name: ’Bob’})-[:FOLLOWS]->(a)
CREATE (a:Person {name: ’Alice’})<-[:FOLLOWS]->(b:Person {name: ’Bob’})
CREATE (a:Person {name: ’Alice’}), (b:Person {name: ’Bob’})-[:FOLLOWS]->(a)
22
Regarding virtualisation, which of the following is most correct
Linux VMs do not require an underlying hypervisor
Type 1 hypervisors run on a server’s existing OS
Type 1 hypervisors have lower overhead than Type 2
Virtualisation removes the need for a physical NIC
23
Out of the kernel, CPU, filesystems module, device modules, devices and memory. Which is NOT in kernel space?
filesystem module and memory
devices and device modules
they are all in the kernel space
CPU
24
which of these is a software layer that runs on a physical server and enables the creation and management of VMs
Hypervisor
Container
Operating system
Kernel
25
Which type of hypervisor has higher performance and efficiency?
Type 2
Type 1
Type 3
Type 4
26
what Cypher clause can be used to create nodes and relationships in Neo4j?
CREATE
SET
BUILD
MAKE
27
Virtualisation reduces the needed for physical hardware. What else is a benefit of virtualisation?
eases deployment and management of IT environments
all of the answers are valid benefits
maximises resource allocation
provides secure and isolated environments for different applications
28
What do operating systems recognise SANs as?
locally attached hard drives
hard drives in a network
local SSDs
API endpoints
29
What happens if a hard drive in a RAID (redundant array of independent disks) fails on a NAS (Network Attached Storage)?
no data can be accessed
data can still be accessed
data will be shared to other components
Data will be lost
30
Which type of hypervisor is easier to set up and use?
Type 2
Type 1
Type 3
Type 4
31
What do the last 3 pairs of a MAC address represent
NIC subnet mask
NIC-Specific identifier
OUI (Organizationally Unique identifier)
OA (Organization address)
32
Why are data centres built using commodity hardware?
cost-effective and readily available, with easily replaceable parts
Made by a single vendor, so its more consistent
they have very low power consumption
eliminates need for NICs
33
Which of these are bare-metal hypervisors?
Type 3
Type 1
Type 2
Type 4
34
The user space is where applications are run. What else is a property of the user space?
it has direct access to hardware devices like disk and memory
processes in it must communicate with the kernel for resources
it can manage kernel threads and schedule CPU time
it can execute privileged instructions like system calls directly
35
Which of these are hosted hypervisors?
Type 3
Type 1
Type 2
Type 4

COMP315 - Cloud Computing - Servers, hardware, storage, databases Flashcards | StudBud