What is the function of a hypervisor in virtualization?

Enables multiple virtual machines to run on one host system

What is a Private Cloud?

A private cloud used by one organization, not shared with other users

What is the main benefit of Software Defined Networking (SDN)?

It centralizes network control using software instead of hardware

What is configuration drift in infrastructure as code?

When actual system state diverges from defined configuration

What describes the hybrid cloud model?

Combining public cloud services with on-premises infrastructure

How does virtualization improve network efficiency?

By allowing multiple services to share the same hardware

What is the purpose of virtualization in networking?

To allow multiple virtual devices to run on one physical machine

What is a Public Cloud?

A service hosted and maintained by third-party providers, shared by clients

What is the purpose of northbound APIs in SDN?

Allow communication between the SDN controller and applications

What is a Hybrid Cloud model?

A mix of private and public clouds working together to share resources

What is the role of the SDN control plane?

Manages network rules and forwarding decisions

What is an overlay network in SDN?

A secondary network built on top of the existing physical network

What defines Software as a Service (SaaS)?

A platform that delivers full applications over the internet to users

What is multi-tenancy in cloud services?

Multiple customers share cloud resources securely and independently

What is a NAT Gateway used for?

Encrypting software source code stored in the cloud

What is a benefit of centralization in SDN?

Network policies can be enforced uniformly across all devices

What does “measured service” mean in cloud computing?

Users are charged based on usage

What is Version Control?

A system for tracking file changes and rolling back to earlier versions

What is rapid elasticity in cloud environments?

Resources can be scaled up or down quickly as needed

What is Software Defined Networking (SDN)?

Using software to centrally manage and automate network behavior

What is the purpose of an Internet Gateway in cloud networking?

To allow virtual machines in the cloud to access the internet

What is the main advantage of using cloud services for business operations?

Flexible scalability and reduced infrastructure management costs

What does resource pooling mean in cloud computing?

Resources are dynamically assigned to multiple customers from a shared pool

What is the role of SDN controllers in a network?

They centralize control of the network by managing policies and flows

What is elasticity in a cloud environment?

The ability to scale resources up or down automatically based on demand

What is Version Control?

A system to track and manage changes to software code or configurations

What task does a Cloud Gateway help perform?

It connects on-premises networks to cloud environments

What does Infrastructure as a Service (IaaS) provide to organizations?

Virtual servers, storage, and network tools managed by the user

What is transport agnostic networking in SDN?

It supports various protocols regardless of underlying transport method

What is a Virtual Private Cloud (VPC)?

A cloud computing environment logically isolated within a public cloud

What is the function of a Cloud Gateway in hybrid cloud?

Provides a secure connection between local data centers and cloud services

What is Source Control used for in cloud environments?

Managing changes to code by tracking versions and edits over time

What is Infrastructure as Code (IaC)?

The practice of managing infrastructure through code and automation

What does “Elasticity” allow in cloud computing?

Resources scale up or down automatically based on usage

What does Zero Trust Architecture assume?

No user or system should be trusted by default, even if inside the network

What is the key difference between Source Control and Version Control?

Source control tracks code edits; version control enables rollbacks

What is the function of a NAT Gateway?

Allows internal cloud resources to access the internet securely

What are Network Security Lists (NSLs)?

Policies that control traffic at the subnet level in a cloud network

What do southbound APIs in SDN do?

Allow the SDN controller to manage network devices and forward instructions

What is a benefit of network function virtualization (NFV)?

Moves routers and firewalls to virtual machines

What is the main benefit of using Infrastructure as Code (IaC)?

IaC allows repeatable and automated setup of infrastructure with templates

What is a Template used for in cloud environments?

To save and reuse configuration settings across virtual resources

What is one benefit of central policy control in SDN?

Policies can be pushed from one location

What is the purpose of a Virtual Private Cloud (VPC)?

To offer a logically isolated segment of a public cloud for a tenant

What is a Network Security Group (NSG)?

A firewall-like resource that controls inbound and outbound traffic

What does Elasticity refer to in cloud computing?

Systems automatically scaling up or down based on resource demands

What is the main function of a Virtual Private Cloud (VPC)?

A private section of a cloud provider's network with isolated resources

What does Desktop as a Service (DaaS) provide?

Cloud-hosted desktops users can access from any device

studbud

Data Comms Chapter 17

68 termsStudBud Administration8 plays

Imported from external platform

Flashcards68 cardsFPractice quizPHost liveL

Questions 68

Answers

1
What is the function of a hypervisor in virtualization?
Manages connections between physical routers
Enables multiple virtual machines to run on one host system
Prevents users from installing unauthorized VPNs
Connects DNS records to on-premise email servers
2
What is a Private Cloud?
A temporary file server used during system updates or migrations
A private cloud used by one organization, not shared with other users
Public service available only during business hours for data storage
A third-party cloud tool used for encrypting emails across a VPN
3
What is the main benefit of Software Defined Networking (SDN)?
It encrypts cloud backup drives automatically
It improves Wi-Fi signals using mesh antennas
It reduces VPN setup steps by 50%
It centralizes network control using software instead of hardware
4
What is configuration drift in infrastructure as code?
When templates are outdated and stop compiling
When actual system state diverges from defined configuration
When DNS records fail to resolve on virtual networks
When on-prem devices go offline during updates
5
What describes the hybrid cloud model?
Using only encrypted cloud connections for internal email servers
Combining public cloud services with on-premises infrastructure
Access to data centers physically located on company property
Running cloud storage through a mobile app for personal use
6
How does virtualization improve network efficiency?
By disabling dynamic routing protocols
By requiring static IP assignments
By blocking wireless signals in congested areas
By allowing multiple services to share the same hardware
7
What is the purpose of virtualization in networking?
To eliminate software licensing across the organization
To prevent cloud service providers from offering remote access
To allow multiple virtual devices to run on one physical machine
To restrict network traffic to a single VLAN
8
What is a Public Cloud?
A personal cloud service for downloading VPN apps across devices
A platform for managing private network configurations through scripts
A cloud environment hosted on company-owned infrastructure and staff
A service hosted and maintained by third-party providers, shared by clients
9
What is the purpose of northbound APIs in SDN?
Route traffic through physical firewalls only
Encrypt VLAN traffic from virtual desktops
Allow communication between the SDN controller and applications
Directly program physical network switches
10
What is a Hybrid Cloud model?
A mix of private and public clouds working together to share resources
Cloud storage used for transferring encrypted files only
A virtual private cloud split between two data centers in different states
A firewall configuration with both virtual and physical settings enabled
11
What is the role of the SDN control plane?
Applies updates to all user devices
Manages network rules and forwarding decisions
Stores backup VLAN templates
Encrypts traffic leaving virtual firewalls
12
What is an overlay network in SDN?
A secondary network built on top of the existing physical network
A backup VLAN that restricts remote access
A VPN connection with zero encryption
A network of firewalls used to isolate endpoints
13
What defines Software as a Service (SaaS)?
A backup server that automates data wipes after 72 hours
A platform that delivers full applications over the internet to users
A firewall management tool for monitoring external cloud access
A tool that allows password resets for unmanaged endpoints
14
Which cloud service model offers development tools without managing servers?
Database as a Service (DBaaS)
Infrastructure as a Service (IaaS)
Software as a Service (SaaS)
Platform as a Service (PaaS)
15
What is multi-tenancy in cloud services?
Multiple customers share cloud resources securely and independently
A backup system that runs once per day regardless of usage
Each user has their own private cloud hardware
Cloud users can build their own fiber networks
16
What is a NAT Gateway used for?
Translating private IP addresses so cloud instances can access the internet
Allowing printers to scan and send over VLANs
Encrypting software source code stored in the cloud
Replacing routers with fully virtual desktops and mobile apps
17
What is a benefit of centralization in SDN?
Network management becomes more manual
Network policies can be enforced uniformly across all devices
Each router independently sets its own rules
Security policies are stored in local text files
18
What does “measured service” mean in cloud computing?
Services are billed annually only
Service performance is never tracked
Users are charged based on usage
Admins block user metrics and data
19
What is Version Control?
A data loss prevention tool for mobile devices
A system for tracking file changes and rolling back to earlier versions
A tool that compresses user traffic for faster backups
A software that updates VPNs without administrator approval
20
What is rapid elasticity in cloud environments?
Elastic resources are only available during off-peak hours
Resources can be scaled up or down quickly as needed
Cloud regions must be expanded manually by engineers
Network speeds are capped to maintain elasticity
21
What is Software Defined Networking (SDN)?
Replacing routers with web-based DNS settings from the ISP
Controlling hardware switches manually through terminal commands
Using software to centrally manage and automate network behavior
Sending Wi-Fi passwords from a cloud app to mobile users
22
What is the purpose of an Internet Gateway in cloud networking?
To monitor users’ screen time across virtual desktops
To automatically send data to external drives
To allow virtual machines in the cloud to access the internet
To block advertisements on all public websites
23
What is the main advantage of using cloud services for business operations?
Cloud computing reduces the need for company-wide password policies
Cloud providers offer unlimited free backups for all user files
Flexible scalability and reduced infrastructure management costs
It gives access to government-only secure satellite networks
24
What does resource pooling mean in cloud computing?
Resources are dynamically assigned to multiple customers from a shared pool
Applications must be installed manually to use pooled resources
Each user has a dedicated physical server for personal use
All cloud users share a single storage drive without segmentation
25
What is the role of SDN controllers in a network?
They backup access logs every 12 hours
They configure network settings from each device's CLI
They physically isolate firewalls from switches
They centralize control of the network by managing policies and flows
26
What is elasticity in a cloud environment?
The default restriction placed on guest virtual machines
The method of assigning multiple users to the same VLAN
The ability to change data formats across regions
The ability to scale resources up or down automatically based on demand
27
What is Version Control?
A backup tool that scans for old disk images on remote servers
A tool for disabling outdated user credentials
A method of identifying all users connected to cloud Wi-Fi
A system to track and manage changes to software code or configurations
28
What task does a Cloud Gateway help perform?
It connects on-premises networks to cloud environments
It deletes unused virtual machines on a schedule
It creates fake addresses to confuse threat actors
It prints encrypted documents sent from the cloud
29
What does Infrastructure as a Service (IaaS) provide to organizations?
Developer frameworks and runtimes without managing infrastructure
Virtual servers, storage, and network tools managed by the user
Fully managed cloud-based applications like Gmail or Salesforce
User-friendly interfaces for cloud-hosted word processors and slideshows
30
What is transport agnostic networking in SDN?
It supports various protocols regardless of underlying transport method
It requires a dedicated internet connection
It blocks external VPNs from traversing VLANs
It allows networking policies to be enforced manually
31
What is a Virtual Private Cloud (VPC)?
A cloud computing environment logically isolated within a public cloud
A licensing model for installing software in offline cloud environments
A backup site that stores VPN credentials for remote users
A server cluster that hosts company Wi-Fi credentials
32
What is the function of a Cloud Gateway in hybrid cloud?
It routes physical cables between private and public routers
Converts digital images into secure transmission formats for storage
Monitors backup logs and deletes duplicates from cloud archives
Provides a secure connection between local data centers and cloud services
33
What is Source Control used for in cloud environments?
Securing routers behind double-layered encryption protocols
Managing changes to code by tracking versions and edits over time
Automatically creating backups of all DNS records
Allowing guest users temporary access to secure networks
34
What is Infrastructure as Code (IaC)?
A method to manually set hardware configurations for each new user
A physical toolkit for cable management in data centers
A cloud gaming platform for rendering video assets
The practice of managing infrastructure through code and automation
35
What does “Elasticity” allow in cloud computing?
It adds color coding to firewall policy rules
It sends backups to cold storage every 30 minutes
It moves files between VLANs over satellite
Resources scale up or down automatically based on usage
36
What does Zero Trust Architecture assume?
No user or system should be trusted by default, even if inside the network
Users can be trusted as long as they use VPN connections
Employees should rotate devices every 30 days for compliance
Every device inside the network is secure unless proven otherwise
37
What is the key difference between Source Control and Version Control?
Source control formats email headers; version control fixes DNS issues
Source control tracks code edits; version control enables rollbacks
Source control manages file permissions; version control scans images
Source control encrypts IP traffic; version control sets VLAN rules
38
What are the three main planes in SDN?
Routing, Switching, and Logging
Physical, Virtual, and Logical
Management, Control, and Data
User, Kernel, and Transport
39
What is the function of a NAT Gateway?
Encrypts all incoming cloud requests for compliance tracking
Allows internal cloud resources to access the internet securely
Synchronizes real-time temperature data from data centers
Manages access control lists for virtual backup tapes
40
What are Network Security Lists (NSLs)?
Spreadsheets of user passwords and login histories
Tools that organize printer queues for large networks
Policies that control traffic at the subnet level in a cloud network
Cloud settings that allow virtual desktops to auto-update
41
What do southbound APIs in SDN do?
Connect VPN clients to cloud-hosted email servers
Trigger alerts when routers are rebooted
Allow the SDN controller to manage network devices and forward instructions
Translate encryption keys for secure backups
42
What is a benefit of network function virtualization (NFV)?
Installs VPN apps on all user phones
Requires no login to change firewall rules
Moves routers and firewalls to virtual machines
Replaces all copper wiring with fiber
43
What is the main benefit of using Infrastructure as Code (IaC)?
IaC enables tracking mouse activity across virtual desktops
It reduces time spent updating physical firewall appliances manually
IaC allows repeatable and automated setup of infrastructure with templates
It encrypts email communications between departments in real time
44
What is a Template used for in cloud environments?
To store email attachments in secure cloud lockers
To track which users accessed physical badge readers
To save and reuse configuration settings across virtual resources
To format PDF documents for compliance
45
What is one benefit of central policy control in SDN?
Policies are stored in user emails
Policies vary by device and subnet
Policies require local approval only
Policies can be pushed from one location
46
Which of the following is a Type 1 hypervisor?
VirtualBox
Citrix Workspace
Hyper-V
VMware ESXi
47
What is the purpose of a Virtual Private Cloud (VPC)?
To install firewalls inside data centers with no shared bandwidth
To give contractors access to cloud backups using physical keys
To offer a logically isolated segment of a public cloud for a tenant
To transmit DNS records securely between government networks
48
What is a Network Security Group (NSG)?
A firewall-like resource that controls inbound and outbound traffic
A cloud-based phone service for helpdesk support
A backup tool that encrypts nightly copies of virtual machines
A list of security standards that apply to mobile devices
49
What does Elasticity refer to in cloud computing?
Systems automatically scaling up or down based on resource demands
The ability to permanently store backups in offline tape libraries
How much bandwidth is available per subnet across a VPC environment
Adding extra cloud regions for identity access management
50
What is the main function of a Virtual Private Cloud (VPC)?
A tool that compresses cloud storage to save money
A system for physical device recovery in the event of network loss
A private section of a cloud provider's network with isolated resources
An automated firewall for rejecting incoming email attachments
51
What does Desktop as a Service (DaaS) provide?
Cloud-hosted desktops users can access from any device
Cloud-based password resets triggered by user inactivity
Fully automated malware removal tools installed on all user laptops
Encrypted local storage and backup for physical desktop computers
52
What does on-demand self-service mean in cloud computing?
Users can access resources whenever needed without human interaction
Services are scheduled once weekly to reduce cost
IT must approve each cloud service request manually
Admins must log in locally to assign hardware
53
Which service lets employees access a desktop environment from any device?
Wi-Fi Traffic Controller
Zero Trust Gateway
Cloud Rights Manager
Desktop as a Service (DaaS)
54
What is application-aware routing?
Routes traffic based on app type and priority
Sends traffic randomly to test path strength
Uses MAC address filters for cloud services
Encrypts software installs by default
55
What is the difference between imperative and declarative configuration in IaC?
Declarative requires manual steps; imperative is automated
Declarative tells the system what to achieve; imperative how to do it
Imperative is cloud-based; declarative is hardware-bound
Imperative defines what you want; declarative defines how to do it
56
Which virtualization type runs on top of an operating system?
Type 2 hypervisor
Type 1 hypervisor
Layer 2 tunneling
Physical router abstraction
57
What is a Virtual Private Network (VPN)?
A tool to back up outdated printers and storage devices
A local server used only during audits and maintenance checks
A monitoring tool for security patch deployment
A secure connection that encrypts data over the internet
58
What is the role of multi-tenancy in cloud computing?
It creates multiple backup copies per day
It assigns different cloud names to each VLAN
It limits access to admin-only dashboards
It allows many users to securely share the same infrastructure
59
What is the purpose of using Playbooks in cloud automation?
To document firewall policy changes for printouts
To execute predefined tasks and processes automatically
To stream user sessions in read-only mode
To notify admins of errors by sending weekly reports
60
How does network function virtualization (NFV) support SDN?
It replaces physical appliances with virtualized services
It requires hardware upgrades every 6 months
It encrypts FTP traffic for public file sharing
It automates physical router maintenance
61
What is Scalability in the context of cloud architecture?
Adjusting resources manually to meet expected future growth over time
Scheduling peak-hour updates to improve data center temperatures
Using the shortest route to access external SaaS services like Gmail
Configuring zero trust access controls for remote employees
62
What is one benefit of using a virtual switch in SDN?
It allows email attachments to bypass firewalls
It limits DNS lookups during peak hours
It tunnels FTP traffic directly to endpoints
It filters MAC addresses without needing hardware switches
63
What is zero-touch provisioning in SDN?
Network traffic is compressed by default
Firewalls create rules every 24 hours
Routers are flashed using local scripts
Devices auto-configure with no manual input
64
What does a NAT Gateway typically do in cloud systems?
Encrypts password logs on print servers
Converts emails into outbound webhooks
Allows private cloud resources to access the internet
Assigns badge readers to guest networks
65
What is Source Control?
A system to manage and track changes to source code
A virtual drive used to store music and video files
A method to encrypt all traffic leaving the firewall
A manual checklist for performing Wi-Fi penetration tests
66
What problem does Zero Trust Architecture aim to solve?
It lets contractors install updates remotely
It allows cloud backups to skip password checks
No device or user is automatically trusted, even inside the network
All data is made public to improve transparency
67
Why is centralized policy management a benefit of SDN?
VLANs are no longer required
Policies are stored locally on each endpoint
Network-wide rules can be enforced from one controller
Users can edit firewall rules without approval
68
What does scalability mean in cloud computing?
The ability to reuse copper wiring from on-premise servers
The use of multiple DNS servers to block access to threats
The ability to increase resources with minimal impact on performance
The control of user bandwidth using a firewall policy

Data Comms Chapter 17 Flashcards | StudBud