I.2 module quiz
Ten questions. 80% to pass (8 of 10). Open book, unlimited retakes.
Answers are collapsed under each question. Answer first, then check.
Q1
Which four things does every cloud customer rent?
A. Laptops, phones, printers and routers
B. Hours, days, weeks and months of time
C. Compute, storage, network and databases
D. Users, passwords, licences and support
Show answer
Correct: C. Every line on a cloud bill belongs to one of these four groups. The others are not what cloud providers rent out.
Q2
What is compute charged on?
A. The hours a machine is switched on, at the rate for its size
B. The number of people who log in to the machine each month
C. How busy the processor was, measured minute by minute
D. A single fixed fee, paid once when the machine is created
Show answer
Correct: A. Compute is priced per hour of running time, and bigger sizes cost more per hour. How busy the machine is does not change the rate.
Q3
A VM has 4 vCPUs and 16 GB of memory. What do those two numbers describe?
A. Its monthly price
B. Its location
C. Its disk space
D. Its size
Show answer
Correct: D. vCPUs (processor power) and memory together make up a VM’s size. Size drives the price but is not the price, and disk space is rented separately.
Q4
A team rents a 200 GB disk and fills 10 GB of it. What are they usually charged for?
A. 10 GB, the space they filled
B. 200 GB, the size they asked for
C. Nothing until the disk is full
D. Only the reads and writes made
Show answer
Correct: B. Disks (block storage) are usually charged on the size provisioned. Object storage is the type charged on what you actually keep.
Q5
Which kind of storage holds files like website images and backups, fetched by name from anywhere with permission?
A. Object storage, such as S3, Cloud Storage or Blob Storage
B. Block storage, attached to a single virtual machine
C. Memory, the machine’s short-term working space
D. A snapshot, saved from a disk at a point in time
Show answer
Correct: A. Object storage is the large filing cabinet for files not tied to one machine. Block storage is a disk attached to a VM, memory is not storage, and a snapshot is a copy of a disk.
Q6
Thirty nightly snapshots have been kept for a year without anyone deleting them. What is happening on the bill?
A. Nothing, because snapshots are always free backups
B. They are charged once, on the day each one was taken
C. Each is charged per GB-month for as long as it is kept
D. They are moved and charged as network traffic instead
Show answer
Correct: C. Snapshots are stored data and charge every month they exist. Without a rule to delete old ones, they pile up quietly.
Q7
What is egress?
A. Data arriving in the cloud from the internet
B. Data leaving the cloud, charged per GB
C. A security tool that blocks unwanted visitors
D. The hourly fee for running a load balancer
Show answer
Correct: B. Egress is outbound data. Inbound data is usually free, while egress grows with every download.
Q8
A NAT gateway carried almost no traffic last month. What does it cost?
A. Its hourly charge for every hour it existed, plus a little for the data
B. Nothing at all, because hardly any traffic passed through it this month
C. A single setup fee that was paid in full when it was first created
D. Only the per-GB fee, because the hourly charge applies to machines
Show answer
Correct: A. A NAT gateway runs an hourly meter whether or not traffic flows, plus a per-GB processing fee. Low traffic shrinks only the second part.
Q9
Why is a managed database often one of the larger items on a bill?
A. Providers charge a premium for any data that is organised in tables
B. It is billed per user, and every user of the app counts as one
C. Every query is charged at a higher rate than ordinary storage
D. It combines instance time, storage and backups, and often a standby copy
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Correct: D. A managed database bundles several meters, usually runs all the time, and is often doubled with a standby copy for safety. It is not billed per user.
Q10
Someone quotes an app’s cost using only its VM line. What is the most likely problem?
A. The figure is too high, because VMs include their own database
B. The figure is exact, because everything an app does runs on VMs
C. The figure is too low, because storage, network and database are missing
D. The figure is meaningless, because cloud costs cannot be added up
Show answer
Correct: C. Every app rents from all four groups. The VM line is only compute, so the true total is the sum across all four.
What’s next
Back to The four things you rent.