Route 53 Flashcards

1
Q

Translates the human friendly hostnames into the machine IP addresses

www.google.com => 172.217.18.36

A

DNS (Domain Name System)

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2
Q

A highly available, scalable, fully managed and Authoritative DNS

A

Route 53

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3
Q

What does Authoritative mean?

A

The customer (you) can update the DNS records

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4
Q

Maps a hostname to IPv4

What record type is this?

A

A

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5
Q

Maps a hostname to IPv6

What record type is this?

A

AAAA

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6
Q

Maps hostname to another hostname

What record type is this?

A

CNAME

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7
Q

Name servers for the Hosted Zone

What record type is this?

A

NS

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8
Q

A container for récords that define how to route traffic to a domain and its subdomain

A

Hosted Zone

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9
Q

Contains records that specify how to route traffic on the internet

A

Public Hosted Zones

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10
Q

Contains records that specify how you route traffic within one or more VPCs

A

Private Hosted Zones

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11
Q

How much does it cost per hosted zone?

A

$0.50 per month

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12
Q
  • Typically, route traffic to a single resource
  • Can specify multiple values in the same record
  • If multiple values are returned, a random one is chosen by the client

What routing policy is this?

A

Simple

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13
Q
  • Control the % of the requests that go to each specific resource
  • DNS records must have the same name and type
  • Can be associated with Health Checks
  • Use cases: load balancing between regions, testing new applications versions

What routing policy is this?

A

Weighted

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14
Q

TTL is mandatory for each DNS record except what?

A

Alias records

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15
Q

High TTL means what?

A

Less traffic on Route 53

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16
Q

Low TTL means what?

A

More traffic on Route 53 ($$)

17
Q

How much time it takes for your computer to send signals to a server and then receive a response back.

A

Latency

18
Q

Create a CloudWatch Metric and associate a CloudWatch Alarm, then create a Health Check that checks alarm itself

A

Health check for a Private Hosted Zone

19
Q

A backup operational mode in which the functions of a system component are assumed by a secondary component

A

Failover

20
Q

A way of asking a service on a particular server whether or not it is capable of performing work successfully

A

Health Check

21
Q

Use case: website localization, restrict content distribution, load balancing

What routing policy is this?

A

Geolocation

22
Q

The ability to track a device’s whereabouts using GPS, cell phone towers, WiFi access points or a combination of these.

A

Geolocation

23
Q

A (blank) expands or shrinks the size of the geographic region from which traffic is routed to a resource

A

Bias

24
Q

Routes traffic to your resources based on the geographic location of your users and your resources.

What routing policy is this?

A

Geoproximity

25
Q

Resources serve traffic based on the geographic location of your users, meaning the location that DNS queries originate from

What routing policy is this?

A

Geolocation

26
Q

Works by mapping IP addresses to locations

What routing policy is this?

A

Geolocation

27
Q

You need to shift traffic from one region to another, by increasing the bias

What routing policy should you use?

A

Geoproximity

28
Q

• Simplify the process of creating and
maintaining records in large and
complex configurations

• Visual editor to manage complex
routing decision trees

What routing policy is this?

A

Traffic flow

29
Q

Use when routing traffic to multiple resources

What routing policy is this?

A

Multi-Value

30
Q

For people requesting your website through the internet, what should they use?

A

Public Hosted Zone

31
Q

Where should NS records be updated?

A

3rd party Registar

32
Q

What are valid Route 53 Health Checks?

A

Endpoint
Other Health Checks
CloudWatch Alarms

33
Q

The Alias record can be added to the what?

A

Root domain

34
Q

Which record type has a loss of geo-targeting data?

A

Alias Record

35
Q

Each DNS record has a (blank) which orders clients for how long to cache these values and not overload the DNS Resolver with DNS requests.

A

TTL