SQS

Question 1

SQS Use cases:

______ processing

Answer 1

asynchronous

Question 2

SQS Use cases:

Separating use interaction from ______/_____ processing

Answer 2

data/object

Question 3

SQS use cases:

separating short processes from ______ running processes

Answer 3

longer

Question 4

SQS ____ Queue

• delivers cache message once, does not guarantee only one
• does not guarantee first in, first out (FIFO)

Answer 4

standard

Question 5

Put the flow in order:

• message remains in queue
• message inserted, receives
• message retrieved, timeout visibility clock started
• message retriver deletes message when completes

Answer 5

• message inserted, receives
• message retrieved, timeout visibility clock started
• message remains in queue
• message retriver deletes message when completes

Question 6

Visibility Timeout and delays (optional)

delays: message invisible during delay period 0-____ seconds

visibility timeout: up to ____ hours

Answer 6

900

12

Question 7

Queue:

Name ____ within account

URL to ____/______ messages

_____k max messages in queue (in flight)

Answer 7

unique

place/retrieve

120

Question 8

Queue Access

pick correct answer(s)

within account

cross-account (non-IAM) based on policies

public

Answer 8

all of the above

Question 9

SQS Messages

Identified by globally ____ ID, used for _____

Answer 9

unique, tracking

Question 10

SQS messages:

retrieval returns receipt handle, used for delete, ______ timeout

Answer 10

visibility

Question 11

SQS Messages

_____-defined metadata (timestamps, signatures)

Answer 11

user

Question 12

SQS messages

_____k max size

Answer 12

256

Question 13

retention period

___ days

Answer 13

4

Question 14

retention period

configurable from ___ seconds to ____ days

Answer 14

60, 14

Question 15

retention period

can be assigned to ____ _____ queue if not processed

Answer 15

dead letter

Question 16

message retrieval

1. returns immediately if no message on queue
2. waits for user-defined time (< 20 seconds) before returning.

match with above:

standard

long polling

Answer 16

1. standard
2. long polling

Question 17

SQS FIFO

Launched in November ____

Answer 17

2016

Question 18

SQS FIFO

message delivered in sequence of ______

Answer 18

insertion

Question 19

SQS FIFO

delivered ____ and only ____

Answer 19

once

Question 20

SQS FIFO

Differences from standard:

limited to _____ TPS

supports messages ____ of up to ___ messages per batch.

requires message group _____(reusable)

Answer 20

300

batching, 10

ID

Question 21

MQ

launched in Nov ____

managed ____ MQ service

Answer 21

2017

apache

Question 22

MQ service features:

___ MQ console

support for ____ MQ protocols, including JMS, NMS, AMQP, STOMP, MQTT, and WebSocket

Use cases: Apps desiring Apache ____ compatibility

Answer 22

active

Apache

MQ