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AWS SAA-C02 > Route 53 > Flashcards

Route 53 Flashcards

1
Q

Route 53

A

Fully managed DNS Service

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2
Q

Location

Route 53

A

Not Regional

Route 53

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3
Q

High availability

Route 53

A

Region-based routing failover

Route 53

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4
Q

SLA

Route 53

A

100% Availability

Route 53

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5
Q

target monitoring option

Route 53

A

May set up health checks

Route 53

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6
Q

Record composition (5)

Route 53

A
  • Name
  • Type
  • Value
  • Routing Policy
  • TTL

Route 53

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7
Q

CNAME limitation

Route 53

A

record cannot be the apex of the zone

Route 53

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8
Q

Alias record

Route 53

A

points hostname to AWS resource

Route 53

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9
Q

domain root option

Alias record

A

may be the root doman name

Alias record

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10
Q

cost

Alias record

A

free of charge to query

Alias record

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11
Q

health option

Alias record

A

can include native health check

Alias record

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12
Q

automation option

Alias record

A

automatically recognizes changes to resource IP address

Alias record

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13
Q

record type

Alias record

A

A or AAAA

Alias record

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14
Q

TTL limitation

Alias record

A

not configurable

Alias record

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15
Q

target limitation

Alias record

A

target may not be an EC2 DNS name

Alias record

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16
Q

health check

R53

A

monitor resources

R53

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17
Q

purpose

R53 health check

A

automate DNS failover

R53 health check

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18
Q

types of health checks (3)

R53 health check

A
  • monitor endpoint
  • calculated health check
  • monitor CloudWatch alarms

R53 health check

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19
Q

monitor endpoint

R53 health check

A

query HTTP (or HTTPS, TCP) and confirm response

R53 health check

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20
Q

number of global, public health checkers

monitor endpoint

A

15

monitor endpoint

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21
Q

interval options (2)

monitor endpoint

A
  • 30s
  • 10s (fast)

monitor endpoint

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22
Q

threshold for when endpoint is healthy

monitor endpoint

A

> 18% health checkers report healthy

monitor endpoint

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23
Q

status codes required for pass

monitor endpoint

A

2## or 3##

monitor endpoint

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24
Q

additional health check monitor option

monitor endpoint

A

health check can monitor for text in first 5kB of response

monitor endpoint

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25
Q

firewall requirement

monitor endpoint

A

public monitor IPs must be allowed by firewall rules

monitor endpoint

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26
Q

Calculated health check

R53 health check

A

combines multiple health checkes into one

R53 health check

27
Q

how you can organize checks

Calculated health check

A

can use OR, AND, or NOT logic

Calculated health check

28
Q

child health check limit

Calculated health check

A

256

Calculated health check

29
Q

customizable option

Calculated health check

A

customize how many health checks are needed to pass

Calculated health check

30
Q

monitor CloudWatch alarms

R53 health check

A

allows for health checks on private hosted zones

R53 health check

31
Q

3rd party registrar

R53

A

may purchase domain through 3rd party and use R53

R53

32
Q

how to link registray

R53 3rd party registrar

A

set NS entries on registrars to AWS nameservers

R53 3rd party registrar

33
Q

Fully managed DNS Service

34
Q

Not Regional

Route 53

A

Location

Route 53

35
Q

Region-based routing failover

Route 53

A

High availability

Route 53

36
Q

100% Availability

Route 53

A

SLA

Route 53

37
Q

May set up health checks

Route 53

A

target monitoring option

Route 53

38
Q
  • Name
  • Type
  • Value
  • Routing Policy
  • TTL

Route 53

A

Record composition (5)

Route 53

39
Q

record cannot be the apex of the zone

Route 53

A

CNAME limitation

Route 53

40
Q

points hostname to AWS resource

Route 53

A

Alias record

Route 53

41
Q

may be the root doman name

Alias record

A

domain root option

Alias record

42
Q

free of charge to query

Alias record

A

cost

Alias record

43
Q

can include native health check

Alias record

A

health option

Alias record

44
Q

automatically recognizes changes to resource IP address

Alias record

A

automation option

Alias record

45
Q

A or AAAA

Alias record

A

record type

Alias record

46
Q

not configurable

Alias record

A

TTL limitation

Alias record

47
Q

target may not be an EC2 DNS name

Alias record

A

target limitation

Alias record

48
Q

monitor resources

R53

A

health check

R53

49
Q

automate DNS failover

R53 health check

A

purpose

R53 health check

50
Q
  • monitor endpoint
  • calculated health check
  • monitor CloudWatch alarms

R53 health check

A

types of health checks (3)

R53 health check

51
Q

query HTTP (or HTTPS, TCP) and confirm response

R53 health check

A

monitor endpoint

R53 health check

52
Q

15

monitor endpoint

A

number of global, public health checkers

monitor endpoint

53
Q
  • 30s
  • 10s (fast)

monitor endpoint

A

interval options (2)

monitor endpoint

54
Q

> 18% health checkers report healthy

monitor endpoint

A

threshold for when endpoint is healthy

monitor endpoint

55
Q

2## or 3##

monitor endpoint

A

status codes required for pass

monitor endpoint

56
Q

health check can monitor for text in first 5kB of response

monitor endpoint

A

additional health check monitor option

monitor endpoint

57
Q

public monitor IPs must be allowed by firewall rules

monitor endpoint

A

firewall requirement

monitor endpoint

58
Q

combines multiple health checkes into one

R53 health check

A

Calculated health check

R53 health check

59
Q

can use OR, AND, or NOT logic

Calculated health check

A

how you can organize checks

Calculated health check

60
Q

256

Calculated health check

A

child health check limit

Calculated health check

61
Q

customize how many health checks are needed to pass

Calculated health check

A

customizable option

Calculated health check

62
Q

allows for health checks on private hosted zones

R53 health check

A

monitor CloudWatch alarms

R53 health check

63
Q

may purchase domain through 3rd party and use R53

R53

A

3rd party registrar

R53

64
Q

set NS entries on registrars to AWS nameservers

R53 3rd party registrar

A

how to link registrar

R53 3rd party registrar

AWS SAA-C02 (47 decks)

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