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Udemy Net+ 10-009 > Modern Network Environments > Flashcards

Modern Network Environments Flashcards

1
Q

Software Defined Networking (SDN)

A

Enables network management through software applications

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2
Q

SD-WAN

A

SDN applied to WAN connections

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3
Q

What are the three distinct planes of SDN ?

A

Data, control, and application plane

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4
Q

Data plane

A

Responsible for packet forwarding

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5
Q

Control plane

A

Manages network traffic and policies

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6
Q

Application plane

A

Hosts network

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7
Q

Central policy management

A

Network admin sets policies and manages all devices from a single interface

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8
Q

Application Aware

A

Intelligently identify applications and can prioritize traffic based on requirements

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9
Q

Zero-Touch Provisioning

A

Network devices can automatically download configuration settings from a central location

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10
Q

Transport Agnostic

A

Flexibility with the type of connectivity used

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11
Q

VXLAN (Extensible)

A

Enhances the scalability of large-scale cloud computing environments

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12
Q

Layer 2 Encapsulation

A

VXLAN encapsulates Ethernet frames within UDP packets

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13
Q

VXLAN Encapsulation Limit

A

16.8 million (24 bit) VLANs

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14
Q

Data center interconnect (DCI)

A

Stretching of layer 2 networks across geographically dispersed data centers

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15
Q

What does DCI allow ?

A

Seamless mobility of virtual machines between data centers without changing underlying network configurations

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16
Q

Zero Trust

A

A security model based on strict identity verification and considering all users as potential threats

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17
Q

Policy-based authentication

A

All users are to be authenticated and continuously validated

18
Q

What are some authentication policies ?

A

MPA, biometrics, and behavioral analytics

19
Q

Authorization in ZTA

A

Access to resources is granted on a per-session basis

20
Q

Least privilege

A

Users, systems, and programs are granted only minimum levels of access/permissions

21
Q

What does least privilege minimize?

A

Potential damage from accidental or malicious actions by limiting access rights

22
Q

Secure access service edge/ security service edge (SASE/SSE)

A

Combines network security functions with WAN capabilities

23
Q

What does SSE focus on?

A

Centralizing various security services like secure web gateways, CASB, ZTNA

24
Q

What does SASE provide?

A

Secure network connectivity and access to resources regardless of location

25
Q

Infrastructure as a code (IaC)

A

Key practice in cloud computing that involves managing and provisioning computing infrastructure through definition files

26
Q

Automation in IaC

A

Enabling rapid and consistent environment setups

27
Q

Playbooks, templates, and reusable tasks

A

Define and orchestrate the steps needed for infrastructure setup, modification, and management

28
Q

Configuration drift

A

Environments current state deviates from its intended state

29
Q

What does IaC aid in maintaining ?

A

Compliance with defined standards and policies by automating configurations and deployments

30
Q

What does IaC ensure with upgrades?

A

Less disruption and that all changes are version controlled and reversible

31
Q

Dynamic Inventories

A

Resources are automatically discovered and managed based on real time data

32
Q

Where are dynamic inventories essential ?

A

Environments that need to adjust quickly to changing demands or configurations

33
Q

Source control

A

Provide a system for tracking changes, collaborating, and maintaining integrity of code

34
Q

Version control

A

Keeps track of every modification to the code

35
Q

Central repository

A

Single source of truth for all code changes

36
Q

Conflict identification

A

Automatically detect conflicts for prevention of overwrites

37
Q

Branching

A

Diverge from the main line of development

38
Q

What concepts and functionalities did IPv6 introduce?

A

Improve routing efficiency, simplify network configuration, and enhance security

39
Q

How will IPv4 and IPv6 work concurrently ?

A

With compatability strategies

40
Q

Tunneling

A

Transmits IPv6 packets over an existing IPv4 network infrastructure. Encapsulate IPv6 packets within IPv4

41
Q

Dual stack

A

Devices run both IPv4 and IPv6 simultaneously

42
Q

NAT64

A

Translates IPv6 into IPv4 addresses and vice versa

Udemy Net+ 10-009 (7 decks)

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