System Administration IT Infrastructure Services Coursera Quiz Answers

All Weeks System Administration IT Infrastructure Services Coursera Quiz Answers

This course will transition you from working on a single computer to an entire fleet. Systems administration is the field of IT that’s responsible for maintaining reliable computers systems in a multi-user environment. In this course, you’ll learn about the infrastructure services that keep all organizations, big and small, up and running.

We’ll deep dive into cloud so that you’ll understand everything from typical cloud infrastructure setups to how to manage cloud resources. You’ll also learn how to manage and configure servers and how to use industry tools to manage computers, user information, and user productivity. Finally, you’ll learn how to recover your organization’s IT infrastructure in the event of a disaster.

By the end of this course you’ll be able to:

utilize best practices for choosing hardware, vendors, and services for your organization

● understand how the most common infrastructure services that keep an organization running work, and how to manage infrastructure servers

● understand how to make the most of the cloud for your organization

● manage an organization’s computers and users using the directory services, Active Directory, and OpenLDAP

● choose and manage the tools that your organization will use

● backup your organization’s data and know-how to recover your IT infrastructure in the case of a disaster

● utilize systems administration knowledge to plan and improve processes for IT environments

SKILLS YOU WILL GAIN

  • Directory Service
  • Lightweight Directory Access Protocol (LDAP)
  • Backup

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System Administration IT Infrastructure Services Coursera Quiz Answers

Week 1: What Is System Administration Quiz Answers

Quiz 01: What is System Administration?

Q1. Which of the following can be a responsibility of a systems administrator?

  • Setting up new user accounts and machines
  • Maintaining servers
  • Troubleshooting user issues
  • All of the above

Q2. Which of the following make up IT infrastructure?

  • Hardware and software
  • Network
  • Operating systems
  • All of the above

Q3. Which of these is considered a server? Check all that apply.

  • A software that provides a service to other software
  • Software that’s only available to the computer it’s installed on
  • Software that provides a service to other machines
  • A computer that provides a service to other computers

Q4. A KVM switch is used to:

  • switch between multiple computers using one monitor, keyboard, and mouse
  • mount multiple servers into one server rack.
  • allow you to serve web content to many clients.
  • enable you to receive incoming SSH connections.

Q5. Which of these server hardware can you stack on top of each other in a server rack?

  • Blade
  • Tower
  • Desktop
  • Rack

Q6. With _, you can access your data, use applications, and more from anywhere in the world, as long as you have an Internet connection.

  • a PAN
  • cloud computing
  • a LAN

Q7. What are the benefits of cloud computing over local computing? Check all that apply.

  • Services are accessible from anywhere in the world.
  • There are smaller starting costs for cloud computing.
  • There are potential long-term costs associated with cloud computing.
  • Software updates are handled by the company providing the service.

Q8. What are the benefits of local computing over cloud computing? Check all that apply.

  • Updates can be handled at anytime.
  • There are potential long-term costs associated with local computing.
  • Services are handled by another organization, so that makes your organization dependent on a third party.
  • You have complete control of the IT infrastructure.

Quiz 02: Systems Administration Tasks

Q1. Which of the following is a good policy to enforce on passwords? Check all that apply.

  • A long password length
  • The use of common words
  • A mixture of symbols and numbers
  • A short password length

Q2. Which of these is part of the hardware lifecycle? Check all that apply.

  • Retirement
  • Procurement
  • Deployment

Peer Graded Assessment:

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Week 2: Network & Infrastructure Services Quiz Answers

Quiz 01: Intro to IT Infrastructure Services

Q1. Which of the following is considered a physical infrastructure service? Check all that apply.

  • Laptop
  • Desktop
  • Rack server
  • Operating systems

Q2. Which of these is considered a network service? Check all that apply.

  • Wireless Internet
  • DNS
  • Blade server
  • Ethernet cables

Q3. Which of these is considered a software service? Check all that apply.

  • Chat applications
  • Word processors
  • Email applications
  • Wireless Internet

Quiz 02: Physical Infrastructure Services

Q1. If you’re running a server, which one of the follow operating systems would be best suited for your server?

  • Windows 10
  • Ubuntu Server
  • MacOS
  • Ubuntu

Q2. What are the benefits of virtualizing servers? Check all that apply.

  • Better hardware resource utilization
  • Easier maintenance
  • Lower costs
  • Better performance than a dedicated server

Q3. Which of the following do you need in order to SSH to a machine? Check all that apply.

  • An SSH client on the machine you want to connect from
  • A VPN connection
  • An SSH server on the machine you want to connect to
  • A virtual server to connect to

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Week 3: Software & Platform Services Quiz Answers

Quiz 01: Software Services

Q1. What are some communication services you can utilize in your organization? Check all that apply.

  • Email
  • Chat applications
  • DNS
  • Phones

Q2. What’s the difference between POP3 and IMAP? Check all that apply.

  • POP3 can only download email to one local device.
  • IMAP can only download email to one local device.
  • POP3 is used for sending emails.
  • IMAP can download emails onto multiple devices.

Q3. True or false: Commercial-use and personal-use software licenses are essentially the same thing.

  • True
  • False

Q4. What are the differences between TLS and SSL? Check all that apply.

  • TLS is the successor to SSL.
  • TLS is more secure than SSL.
  • SSL is more secure than TLS.
  • SSL is the successor to TLS.

Quiz 02: File, Print, and Platform Services

Q1. What are the benefits of setting up an NFS server? Check all that apply.

  • Connecting to printers
  • Storing files on a network drive
  • Enabling files to be shared over a network
  • Serving web content

Q2. What methods could you use to set up printing in an organization? Check all that apply.

  • Directly connecting a printer
  • Setting up a print server
  • Using a cloud service to set up printers
  • Setting up an NFS server

Q3. When you have a web server, what service is used to enable HTTP requests to be processed?

  • An HTTP server
  • The web server
  • HTTP status codes
  • A database server

Q4. You can use a(n) ______________to store large amounts of customer data for a website.

  • NFS server
  • HTTP server
  • database server
  • DNS server

Quiz 03: Troubleshooting Platform Services

Q1. HTTP status codes that begin with 4xx, like 404, indicate errors on:

  • The client-side
  • The server-side
  • Nowhere; these codes are successful
  • Redirections

Q2. HTTP status codes that begin with 5xx, like 501, indicate errors on:

  • The client-side
  • The server-side
  • Nowhere; these codes are successful
  • Redirections

Peer Graded Assessment

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Week 4: Directory Services Quiz Answers

Quiz 01: Active Directory

Q1. What is Active Directory? Check all that apply.

  • An open-source directory server
  • A Windows-only implementation of a directory server
  • Microsoft’s implementation of a directory server
  • An LDAP-compatible directory server

Q2. How is an Organizational Unit different from a normal container?

  • It’s not; it’s just a different name for a container x
  • It can hold other objects
  • It can only hold other containers
  • It can hold additional containers

Q3. When you create an Active Directory domain, what’s the name of the default user account?

  • Superuser
  • Root
  • Username
  • Administrator

Q4. True or false: Machines in the Domain Controllers group are also members of the Domain Computers group.

  • True
  • False

Q5. In what way are security groups different from distribution groups?

  • They’re the exact same thing.
  • Security groups are used for computers, while distribution groups are used for users.
  • Security groups are used for users, while distribution groups are used for computers.
  • Security groups can be used to provide access to resources, while distribution groups are only used for email communication.

Q6. What’s the difference between changing a password and resetting a password?

  • Changing a password requires the previous password.
  • Changing a password does not require the previous password.
  • Resetting a password locks the account.
  • They’re the same.

Q7. True or false: Joining a computer to Active Directory involves joining the computer to a workgroup.

  • True
  • False

Q8. Joining a computer to an AD domain provides which of the following advantages? Check all that apply.

  • Centralized authentication
  • More detailed logging
  • Centralized management with GPOs
  • Better performance

Q9. What are Group Policy Objects?

  • Special types of containers
  • Special types of computers groups
  • Special types of user groups
  • Settings for computers and user accounts in AD

Q10. What’s the difference between a policy and a preference?

  • They’re the exact same thing.
  • A policy is used to set a preference.
  • A policy is enforced by AD, while a preference can be modified by a local user.
  • A policy can be modified by a local user, while a preference is enforced by AD.

Q11. With a brand new AD domain, what do you need to change before you can target groups of users and machines with GPOs?

  • Nothing; the default configuration is good to go.
  • You need to place users and computers into new OUs.
  • You need to create an administrator account.
  • You need to rename the default groups.

Q12. Select the right order of enforcement of GPOs:

  • Site –> Domain –> OU
  • OU –> Domain –> Site
  • Domain –> Site –> OU
  • Site –> OU –> Domain

Q13. What can we use to determine what policies will be applied for a given machine?

  • gpupdate [INCORRECT]
  • A control panel [INCORRECT]
  • A test domain
  • An RSOP report

Q14. How does a client discover the address of a domain controller?

  • It’s pushed via an AD GPO.
  • It sends a broadcast to the local network.
  • It makes a DNS query, asking for the SRV record for the domain.
  • It’s provided via DHCP.

Q15. Which of the following could prevent you from logging into a domain-joined computer? Check all that apply.

  • You’re unable to reach the domain controller.
  • Your computer is connected to Wifi.
  • The user account is locked.
  • The are time and date are incorrect.

Quiz 02: Centralized Management and LDAP

Q1. Which of these are examples of centralized management? Check all that apply.

  • Role-based access control
  • Centralized configuration management
  • Copying configurations to various systems
  • Local authentication

Q2. Which of these are components of an LDAP entry? Check all that apply.

  • Uncommon Name
  • Common Name
  • Organizational User
  • Distinguished Name

Q3. What’s does the LDAP Bind operation do exactly?

  • Modifies entries in a directory server
  • Looks up information in a directory server
  • Authenticates a client to the directory server
  • Changes the password for a user account on the directory server

Q4. Which of the following are authentication types supported by the LDAP Bind operation? Check all that apply.

  • Anonymous
  • Simple
  • Complex
  • SASL

Quiz 03: Introduction to Directory Services

Q1. What does a directory server provide?

  • A real-time communication service
  • A network time service
  • A lookup service for an organization
  • A replication service

Q2. What benefits does replication provide? Check all that apply.

  • Redundancy
  • Enhanced security
  • Increased capacity
  • Decreased latency

Q3. What’s the most popular directory services protocol used today?

  • Directory Access Protocol
  • Directory System Protocol
  • Lightweight Directory Access Protocol
  • Directory Operational Binding Management Protocol

Peer Graded Assessment

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Week 5: Data Recovery & Backups Quiz Answers

Quiz 01: Disaster Recovery Plans

Q1. What elements should a disaster recovery plan cover? Check all that apply.

  • Detection measures
  • Preventative measures
  • Recovery measures
  • Drastic measures

Q2. Why are detection measures included in a disaster recovery plan?

  • They aren’t
  • Because it’s important to know when a disaster occurs
  • Because they prevent data loss
  • Because they make recovering from data loss easier

Q3. What are good preventative measures to incorporate in your organization? Check all that apply.

  • Monitoring and alerting systems
  • Redundant systems
  • Regular backups
  • Accessible and up-to-date documentation

Q4. What are good detection measures to incorporate in your organization? Check all that apply.

  • Environmental monitoring
  • Backing up firewall rules
  • Redundant power supplies
  • System performance monitoring

Q5. What are good recovery measures to incorporate in your organization? Check all that apply.

  • Restoring server configs from backup
  • Following detailed recovery plan documentation
  • Monitoring for internet line outages
  • Maintaining redundant servers

Quiz 02: Planning for Data Recovery

Q1. How can you recover from an unexpected data loss event? Check all that apply.

  • Write a post-mortem report.
  • Recover data from damaged devices.
  • Restore data from backups.
  • Design a disaster recovery plan.

Q2. Where is it best to store backups, physically?

  • On-site
  • Off-site
  • In a safe
  • Across multiple locations

Q3. Which of these should be included in your backups? Check all that apply.

  • Firewall configurations
  • A downloads folder
  • Family vacation photos
  • Sales databases

Q4. What’s magnetic tape backup media best suited for?

  • Long-term archival data
  • Low-latency cached data
  • Cheap backup systems
  • Quick and efficient backups

Q5. Why is it important to test backups and restoration procedures? Check all that apply.

  • To reduce the size of backup data
  • To speed up the backup-and-restore process
  • To ensure backups work and data can be restored from them
  • To ensure that relevant data is included in the backups

Q6. Which of the following backup types are most space-efficient?

  • Full backups
  • Differential backups
  • Incremental backups

Q7. True or false: You can use a RAID array and use rsync to copy critical data to it for backups.

  • True
  • False

Quiz 03: Post-Mortems

Q1. What’s the intent behind writing a post-mortem?

  • To assign blame for mistakes
  • To assign legal liability
  • To learn from mistakes and improve in the future
  • To scare people into avoiding risky behavior

Q2. What should the timeline in a post-mortem include? Check all that apply.

  • Actions taken before, during, and after the event
  • A detailed analysis of the incident, including root cause and scope
  • Detailed dates and times
  • A summary of the incident and how long it lasted

Peer Graded Assessment

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Week 6: Final Project

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Operating Systems and You: Becoming a Power User

There are 5 Courses in Google IT Support Professional Certificate

Course 1: Technical Support Fundamentals

Course 2: The Bits and Bytes of Computer Networking

Course 3: Operating Systems and You: Becoming a Power User

Course 4: System Administration and IT Infrastructure Services

Course 5: IT Security: Defense against the digital dark arts

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