Module 2 challenge: Network Services:System Administration and IT Infrastructure Services(Google IT Support Professional Certificate) Answers 2025:

Question 1

Which service gives access to pre-configured virtual machines that can be used like physical servers?

✅ IaaS (Infrastructure as a Service)
❌ SaaS
❌ PaaS
❌ DaaS

Explanation:
IaaS provides virtualized computing resources (like VMs, storage, and networking) over the internet, allowing users to manage servers as if they were physical machines.

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Question 2

Which of the following are cons that come from using a Cloud Service?

✅ Recurring cost
✅ The need to depend on a provider for service
❌ A simplified user interface
❌ Having to purchase expensive networking hardware

Explanation:
Cloud services reduce hardware costs but introduce ongoing subscription expenses and dependency on providers for uptime and support.

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Question 3

Which of the following are typically included with server operating systems to help optimize server functionality?

✅ Added security
✅ Allow more network connections
❌ More RAM capacity
❌ A simplified user interface

Explanation:
Server OSs are designed for high security, scalability, and multiple simultaneous network connections, not ease of use.

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Question 4

You are setting up a website for your company and need to point your domain to your hosted web content.

✅ An authoritative DNS server
❌ A proxy server
❌ A TFTP server
❌ A VNC client

Explanation:
An authoritative DNS server holds the records that map your domain name to the web server’s IP address.

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Question 5

What does DHCP do?

✅ DHCP assigns IP addresses to computers on a network.
❌ DHCP sets up an authoritative DNS server.
❌ DHCP maps domain names to IPs.
❌ DHCP keeps the clock synchronized.

Explanation:
The Dynamic Host Configuration Protocol (DHCP) automatically provides devices with IP addresses and configuration info like gateway and DNS.

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Question 6

Why would you reload a service instead of stopping and starting it?

✅ Reloading avoids a service interruption.
❌ Reloading uses fewer system resources.
❌ Reloading saves configuration changes.
❌ Stop/start only applies partial changes.

Explanation:
Reloading updates configuration files while keeping the service running, preventing downtime.

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Question 7

You’re using dnsmasq and want to troubleshoot DNS issues. Which command do you run?

✅ sudo dnsmasq -d -q
❌ sudo dns -d -q
❌ sudo dns
❌ dnsmasq -d -q

Explanation:
The -d flag runs dnsmasq in debug mode, and -q gives query logs, which help in troubleshooting.

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Question 8

You check the status of the cups service on Linux. What status is printed if the service is inactive?

✅ cupsd is not running
❌ cupsd inactive
❌ no output displayed
❌ cupsd is not running … failed!

Explanation:
When a service is stopped or inactive, the typical systemctl output states “cupsd is not running.”

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Question 9

How can you stop the Themes service from the Windows GUI?

✅ Navigate to the Services menu → right-click Themes → select Stop from the dropdown.
❌ Select Stop from dropdown menu (no right-click)
❌ Select Pause
❌ Select Interrupt

Explanation:
To manage Windows services, you open Services.msc, right-click a service, and select Stop.

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Question 10

You want to install web-serving features via PowerShell. What kind of PowerShell CLI must you open?

✅ Administrator PowerShell CLI
❌ Normal user PowerShell CLI
❌ Power user PowerShell CLI
❌ Guest user PowerShell CLI

Explanation:
Installing or enabling system features requires administrator privileges in PowerShell.

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