AWS Rout 53 Record Types Flashcards
(134 cards)
1
Q
What is the primary function of AWS Route 53?
A
AWS Route 53 is a scalable Domain Name System (DNS) web service designed to route end users to Internet applications.
2
Q
True or False: Route 53 can only be used with AWS resources.
A
False
3
Q
What type of Route 53 record maps a domain name to an IP address?
A
A record (Address Record)
4
Q
Fill in the blank: The _____ record type is used to route requests to a specific resource in AWS, such as an Elastic Load Balancer.
A
CNAME record
5
Q
What is the purpose of an MX record in Route 53?
A
MX records are used to specify mail servers for email delivery.
6
Q
Which record type is used to point a domain to an Amazon S3 bucket?
A
Alias record
7
Q
True or False: A CNAME record can be used at the root domain level.
A
False
8
Q
What does the SOA record stand for, and what is its purpose?
A
Start of Authority; it provides information about the domain’s DNS zone, including the primary name server and the email of the domain administrator.
9
Q
What type of record would you use to create a subdomain in Route 53?
A
CNAME record or A record
10
Q
Which record type allows you to configure a DNS record that can point to multiple resources for load balancing?
A
Alias record
11
Q
What is the TTL in DNS records, and why is it important?
A
TTL stands for Time to Live; it defines how long a DNS record is cached by resolvers, impacting DNS query performance.
12
Q
What is the difference between an A record and an AAAA record?
A
An A record maps a domain to an IPv4 address, while an AAAA record maps a domain to an IPv6 address.
13
Q
True or False: Route 53 can perform health checks on endpoints.
A
True
14
Q
What does an NS record do in Route 53?
A
NS records specify the name servers for a domain.
15
Q
Fill in the blank: The _____ record type is used to direct traffic to an external service using a domain name.
A
CNAME record
16
Q
What type of record would you use to specify a secondary mail server for email redundancy?
A
MX record
17
Q
What does the acronym DNS stand for?
A
Domain Name System
18
Q
True or False: An Alias record can point to AWS resources like CloudFront distributions.
A
True
19
Q
What is the maximum number of records you can create in a single Route 53 hosted zone?
A
There is no hard limit, but AWS recommends managing up to 10,000 records per hosted zone for optimal performance.
20
Q
What is a TXT record used for in Route 53?
A
TXT records are used to store text information related to a domain, often for verification and security purposes.
21
Q
What is AWS Route 53?
A
AWS Route 53 is a scalable Domain Name System (DNS) web service designed to provide highly reliable and cost-effective domain registration, DNS routing, and health checking.
22
Q
True or False: Route 53 allows you to route traffic based on different routing policies.
A
True
23
Q
What are the main routing policies available in AWS Route 53?
A
The main routing policies are Simple, Weighted, Latency, Failover, Geo-location, Geo-proximity, and Multi-Value Answer.
24
Q
Fill in the blank: The ______ routing policy routes traffic to resources based on the lowest network latency.
A
Latency
25
Which routing policy would you use to distribute traffic across multiple resources based on predefined weights?
Weighted routing policy
26
True or False: The Failover routing policy is used to route traffic to a primary resource and failover to a secondary resource in case of failure.
True
27
What is the purpose of the Geo-location routing policy?
The Geo-location routing policy routes traffic based on the geographic location of the user.
28
Multiple Choice: Which routing policy allows you to route traffic based on the health of your resources? A) Weighted B) Failover C) Geo-location
B) Failover
29
What does the Multi-Value Answer routing policy do?
The Multi-Value Answer routing policy allows you to return multiple values, such as IP addresses, in response to DNS queries.
30
True or False: You can only use one routing policy per DNS record in Route 53.
False
31
What is the main purpose of the Simple routing policy?
The Simple routing policy is used to route traffic to a single resource.
32
Fill in the blank: The ______ routing policy lets you specify a geographic region to route traffic to specific resources.
Geo-proximity
33
Which routing policy would you choose for a disaster recovery scenario?
Failover routing policy
34
True or False: Latency routing policy can only be used in conjunction with AWS resources.
False
35
What is the maximum number of records that can be associated with a single DNS name in Route 53?
There is no hard limit, but practical limits depend on the DNS record type and usage.
36
Multiple Choice: Which routing policy is best for balancing load across multiple servers? A) Simple B) Weighted C) Geo-location
B) Weighted
37
What is the primary benefit of using Route 53's health checks?
Health checks ensure that traffic is only routed to healthy resources, improving availability.
38
Fill in the blank: The ______ routing policy can help improve user experience by directing them to the nearest resource based on their location.
Geo-location
39
True or False: Route 53 can only be used for routing web traffic.
False
40
What is the role of the routing policy in AWS Route 53?
The routing policy defines how Route 53 responds to DNS queries based on various criteria.
41
Multiple Choice: Which routing policy is NOT available in Route 53? A) Simple B) Weighted C) Sequential
C) Sequential
42
What is the significance of using multiple routing policies together?
Using multiple routing policies allows for more complex traffic management and optimization strategies.
43
Fill in the blank: The ______ routing policy allows you to direct traffic to multiple resources while providing a simple failover mechanism.
Multi-Value Answer
44
True or False: AWS Route 53 can automatically switch to a backup resource if the primary resource fails.
True
45
What is the purpose of configuring health checks in Route 53?
Health checks monitor the health of resources and enable failover routing based on their status.
46
Multiple Choice: Which routing policy would you choose for a global application that needs to minimize latency for users worldwide? A) Latency B) Geo-location C) Simple
A) Latency
47
What feature of Route 53 allows for fine-tuned control over traffic distribution?
Weighted routing policy
48
Fill in the blank: The ______ routing policy helps improve application performance by directing users to the closest endpoint based on latency.
Latency
49
True or False: Health checks in Route 53 can check the status of web servers, databases, and other resources.
True
50
What is AWS Route 53?
AWS Route 53 is a scalable Domain Name System (DNS) web service designed to provide highly reliable and cost-effective domain registration, DNS routing, and health checking.
51
True or False: Route 53 allows you to route traffic based on different routing policies.
True
52
What are the main routing policies available in AWS Route 53?
The main routing policies are Simple, Weighted, Latency, Failover, Geo-location, Geo-proximity, and Multi-Value Answer.
53
Fill in the blank: The ______ routing policy routes traffic to resources based on the lowest network latency.
Latency
54
Which routing policy would you use to distribute traffic across multiple resources based on predefined weights?
Weighted routing policy
55
True or False: The Failover routing policy is used to route traffic to a primary resource and failover to a secondary resource in case of failure.
True
56
What is the purpose of the Geo-location routing policy?
The Geo-location routing policy routes traffic based on the geographic location of the user.
57
Multiple Choice: Which routing policy allows you to route traffic based on the health of your resources? A) Weighted B) Failover C) Geo-location
B) Failover
58
What does the Multi-Value Answer routing policy do?
The Multi-Value Answer routing policy allows you to return multiple values, such as IP addresses, in response to DNS queries.
59
True or False: You can only use one routing policy per DNS record in Route 53.
False
60
What is the main purpose of the Simple routing policy?
The Simple routing policy is used to route traffic to a single resource.
61
Fill in the blank: The ______ routing policy lets you specify a geographic region to route traffic to specific resources.
Geo-proximity
62
Which routing policy would you choose for a disaster recovery scenario?
Failover routing policy
63
True or False: Latency routing policy can only be used in conjunction with AWS resources.
False
64
What is the maximum number of records that can be associated with a single DNS name in Route 53?
There is no hard limit, but practical limits depend on the DNS record type and usage.
65
Multiple Choice: Which routing policy is best for balancing load across multiple servers? A) Simple B) Weighted C) Geo-location
B) Weighted
66
What is the primary benefit of using Route 53's health checks?
Health checks ensure that traffic is only routed to healthy resources, improving availability.
67
Fill in the blank: The ______ routing policy can help improve user experience by directing them to the nearest resource based on their location.
Geo-location
68
True or False: Route 53 can only be used for routing web traffic.
False
69
What is the role of the routing policy in AWS Route 53?
The routing policy defines how Route 53 responds to DNS queries based on various criteria.
70
Multiple Choice: Which routing policy is NOT available in Route 53? A) Simple B) Weighted C) Sequential
C) Sequential
71
What is the significance of using multiple routing policies together?
Using multiple routing policies allows for more complex traffic management and optimization strategies.
72
Fill in the blank: The ______ routing policy allows you to direct traffic to multiple resources while providing a simple failover mechanism.
Multi-Value Answer
73
True or False: AWS Route 53 can automatically switch to a backup resource if the primary resource fails.
True
74
What is the purpose of configuring health checks in Route 53?
Health checks monitor the health of resources and enable failover routing based on their status.
75
Multiple Choice: Which routing policy would you choose for a global application that needs to minimize latency for users worldwide? A) Latency B) Geo-location C) Simple
A) Latency
76
What feature of Route 53 allows for fine-tuned control over traffic distribution?
Weighted routing policy
77
Fill in the blank: The ______ routing policy helps improve application performance by directing users to the closest endpoint based on latency.
Latency
78
True or False: Health checks in Route 53 can check the status of web servers, databases, and other resources.
True
79
What is AWS Route 53?
AWS Route 53 is a scalable Domain Name System (DNS) web service designed to provide highly reliable and cost-effective domain registration, DNS routing, and health checking.
80
True or False: Route 53 Traffic Flow allows for complex routing configurations.
True
81
What are the main components of Route 53 Traffic Flow?
The main components are Traffic Policies, Health Checks, and Policy Records.
82
Fill in the blank: Route 53 Traffic Flow enables users to create ______ for managing traffic to their applications.
traffic policies
83
Which routing policy allows you to route traffic based on the geographic location of users?
Geolocation routing policy
84
What is the purpose of health checks in Route 53 Traffic Flow?
Health checks monitor the health of resources and route traffic away from unhealthy endpoints.
85
Multiple choice: Which routing policy would you use to distribute traffic evenly across multiple endpoints?
Weighted routing policy
86
What is a Traffic Policy in Route 53?
A Traffic Policy is a collection of rules that determine how traffic is routed to your application.
87
True or False: You can combine multiple routing policies in a single Traffic Policy.
True
88
What is the maximum number of health checks you can associate with a single resource in Route 53?
50 health checks
89
Fill in the blank: Route 53 Traffic Flow uses ______ to determine the best endpoint for routing traffic.
traffic policies
90
Multiple choice: Which of the following is NOT a routing policy in Route 53 Traffic Flow?
Round Robin routing policy
91
What feature does Route 53 provide for DNS failover?
Route 53 provides DNS failover by routing traffic to healthy endpoints when health checks fail.
92
What is the purpose of a Traffic Policy Instance in Route 53?
A Traffic Policy Instance is the association of a Traffic Policy with a domain name.
93
True or False: Route 53 can only be used with AWS resources.
False
94
What is the difference between Latency routing and Geolocation routing?
Latency routing routes traffic to the endpoint with the lowest latency, while Geolocation routing routes traffic based on the geographical location of the user.
95
Fill in the blank: Route 53 Traffic Flow allows you to create ______ to manage how traffic is routed to your resources.
routing policies
96
Multiple choice: Which routing policy would you choose for a failover scenario?
Failover routing policy
97
What is the purpose of the 'Evaluate Target Health' option in Route 53?
It allows Route 53 to consider the health of the endpoints when routing traffic.
98
True or False: Route 53 Traffic Flow can integrate with AWS CloudWatch for monitoring.
True
99
What is a key benefit of using Route 53 Traffic Flow?
It provides flexibility and control over how traffic is routed to applications.
100
Fill in the blank: The ______ routing policy is best for routing traffic based on the health of endpoints.
Failover
101
Multiple choice: Which of the following routing policies is used for A/B testing?
Weighted routing policy
102
What does Route 53 use to enhance the reliability of routing decisions?
Health checks and failover mechanisms
103
True or False: Route 53 Traffic Flow can automatically adjust traffic distribution based on real-time metrics.
True
104
What is the purpose of the Route 53 console?
The Route 53 console allows users to manage DNS records, traffic policies, and health checks.
105
Fill in the blank: Route 53 supports ______ routing, allowing you to route traffic based on the user's location.
Geolocation
106
Multiple choice: Which policy allows you to route traffic based on the performance of your resources?
Latency routing policy
107
What is a Traffic Flow policy record?
A Traffic Flow policy record defines how Route 53 routes traffic based on the rules specified in a Traffic Policy.
108
True or False: Route 53 Traffic Flow is only available in specific AWS regions.
False
109
What is a primary advantage of using weighted routing policies?
They allow for gradual traffic shifts between endpoints.
110
What is AWS Route 53?
AWS Route 53 is a scalable and highly available Domain Name System (DNS) web service.
111
What is the purpose of health checks in Route 53?
Health checks are used to monitor the health of resources and determine their availability.
112
True or False: Health checks can only be configured for web servers.
False
113
What types of endpoints can Route 53 health checks monitor?
Route 53 health checks can monitor web servers, email servers, and other endpoints.
114
Fill in the blank: Route 53 health checks can be configured to check the health of an endpoint using _____ or _____ protocols.
HTTP, HTTPS
115
What is the default interval for health checks in Route 53?
The default interval is 30 seconds.
116
Multiple Choice: What happens when a health check fails?
Route 53 can stop routing traffic to the unhealthy endpoint.
117
What is the maximum number of health checks you can create per AWS account?
You can create up to 50 health checks per AWS account by default.
118
True or False: Route 53 health checks can trigger CloudWatch alarms.
True
119
What is the purpose of the 'failure threshold' in Route 53 health checks?
It determines how many consecutive health check failures must occur before the endpoint is considered unhealthy.
120
What is the minimum value for the 'failure threshold' setting?
The minimum value is 1.
121
Fill in the blank: Route 53 health checks can be integrated with _____ for automated recovery actions.
AWS Lambda
122
What are 'latency-based routing' and 'geolocation routing' in the context of Route 53?
They are routing policies that direct traffic based on latency or geographic location, respectively.
123
True or False: Health checks can be configured to check TCP endpoints.
True
124
What is an 'alias record' in Route 53?
An alias record is a Route 53-specific record type that points to AWS resources.
125
What happens if all health checks for an alias record fail?
Route 53 will stop routing traffic to the alias record.
126
Short Answer: How can you test health checks before applying them?
You can use the Route 53 console to simulate health check requests.
127
What is the 'request interval' for health checks?
It is the frequency at which Route 53 sends health check requests to the endpoint.
128
Multiple Choice: Which of the following is NOT a feature of Route 53 health checks?
SSL certificate management
129
How many health checks can be associated with a single Route 53 record set?
Up to 100 health checks can be associated with a record set.
130
True or False: You can set up health checks for endpoints outside of AWS.
True
131
What is the maximum timeout value for health checks in Route 53?
The maximum timeout value is 30 seconds.
132
Fill in the blank: Route 53 health checks can return _____ codes to determine endpoint health.
HTTP status
133
Short Answer: What action can be taken if an endpoint is reported as unhealthy?
Traffic can be rerouted to a healthy endpoint.
134
What is the significance of 'health check tags' in Route 53?
Tags help organize and manage health checks in AWS.
