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Redis Tutorial
BOSS QUIZ
10 questions · 5 minutes · pass at 70% to clear the track.
05:00
Start
Q1.
Set an expiry in seconds with…
from Keys & TTL
SETEX or EXPIRE
TTL only
PEXPIREAT only
PEXPIRE only
Q2.
DEL on a missing key returns…
from Keys & TTL
Error
0
nil
-1
Q3.
Atomic execution of queued commands is…
from MULTI / EXEC
DONE
EXEC
RUN
FIRE
Q4.
For best durability vs throughput, common pick is…
from Persistence (RDB / AOF)
RDB only
AOF appendfsync everysec
No persistence
AOF always
Q5.
Optimistic-lock by watching keys with…
from MULTI / EXEC
WATCH
LOCK
CAS
SUBSCRIBE
Q6.
Append to a stream with…
from Streams
SADD
XADD
ZADD
LPUSH
Q7.
Redis is best described as…
from Intro
A SQL database
An in-memory data-structure server
A column store
A document DB
Q8.
RDB persistence writes…
from Persistence (RDB / AOF)
Every command
Periodic snapshots
A WAL only
Nothing
Q9.
AOF persistence writes…
from Persistence (RDB / AOF)
Periodic snapshots
Every write command
Nothing
Replication only
Q10.
A Redis transaction begins with…
from MULTI / EXEC
BEGIN
MULTI
TX
START
Submit
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