SAC Automation, Scripting, and Virtualization 3

Question 1

Which cron schedule expression runs a job at 2:30 AM every Monday?

Accepted Answer

30 2 * * 1

Answer

Cron fields are minute, hour, day-of-month, month, day-of-week — so '30 2 * * 1' means 2:30 AM on Monday.

Question 2

In Terraform, what command applies changes shown in a previously generated execution plan file?

Accepted Answer

terraform apply

Answer

terraform apply executes the changes outlined in the plan, provisioning or modifying infrastructure resources.

Question 3

What is the primary role of a 'Type 1' (bare-metal) hypervisor compared to a 'Type 2' hypervisor?

Accepted Answer

Type 1 runs directly on hardware; Type 2 runs on top of a host OS

Answer

Type 1 hypervisors (e.g., ESXi, Hyper-V) run directly on hardware, while Type 2 (e.g., VirtualBox, VMware Workstation) run within a host OS.

Question 4

In a Bash script, which construct checks if the file '/etc/passwd' exists and is readable?

Accepted Answer

if [ -r /etc/passwd ]

Answer

The -r flag in a Bash test expression returns true when the specified file exists and is readable.

Question 5

Which PowerShell feature allows you to define a reusable block of code that accepts parameters and returns a value?

Accepted Answer

Function

Answer

PowerShell functions are defined with the 'function' keyword and can accept typed parameters and return values.

(SAC) System Administration Certification Practice Test