All Weeks 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

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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

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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

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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

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Week 6: Final Project

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IT Security: Defense against the digital dark arts

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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