Podcast
Questions and Answers
What is one of the primary responsibilities of a Database Administrator (DBA)?
What is one of the primary responsibilities of a Database Administrator (DBA)?
Which skill is essential for a System Administrator to effectively assist users?
Which skill is essential for a System Administrator to effectively assist users?
What type of automation is primarily used for the management of data centers?
What type of automation is primarily used for the management of data centers?
Which file system is specifically designed for use with the Linux OS?
Which file system is specifically designed for use with the Linux OS?
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What does an office automation system primarily focus on?
What does an office automation system primarily focus on?
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What is one function of the Presentation Layer in data management?
What is one function of the Presentation Layer in data management?
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Which type of memory is primarily associated with mechanical data reading?
Which type of memory is primarily associated with mechanical data reading?
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What is one characteristic of the File Allocation Table?
What is one characteristic of the File Allocation Table?
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Which type of disk allows for rewriting new data multiple times?
Which type of disk allows for rewriting new data multiple times?
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What is the primary function of Digital Asset Management (DAM)?
What is the primary function of Digital Asset Management (DAM)?
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Which of the following is NOT a type of backup management?
Which of the following is NOT a type of backup management?
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What does a file system primarily do?
What does a file system primarily do?
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What is the purpose of driver software?
What is the purpose of driver software?
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Which of the following statements about application software is true?
Which of the following statements about application software is true?
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Which type of content management system is focused on managing learning resources?
Which type of content management system is focused on managing learning resources?
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Which file system was developed for use with Mac operating systems?
Which file system was developed for use with Mac operating systems?
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What type of internet connection uses existing telephone lines for high-bandwidth data?
What type of internet connection uses existing telephone lines for high-bandwidth data?
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Which layer of the OSI model is responsible for routing data packets between devices across different networks?
Which layer of the OSI model is responsible for routing data packets between devices across different networks?
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What characteristic defines a Guest User Account compared to a Standard User Account?
What characteristic defines a Guest User Account compared to a Standard User Account?
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Which technology allows for the transmission of information in the form of light rather than electricity?
Which technology allows for the transmission of information in the form of light rather than electricity?
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Which layer of the OSI model ensures error detection and correction for directly connected nodes?
Which layer of the OSI model ensures error detection and correction for directly connected nodes?
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Which of the following is a type of wireless internet connection facilitated by cellular towers?
Which of the following is a type of wireless internet connection facilitated by cellular towers?
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In the OSI model, which layer is the closest to the end user?
In the OSI model, which layer is the closest to the end user?
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Which type of network extends over a large geographic area connecting multiple LANs?
Which type of network extends over a large geographic area connecting multiple LANs?
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What is the primary function of a Package Management System (PMS)?
What is the primary function of a Package Management System (PMS)?
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Which of the following is a type of Disaster Recovery Plan?
Which of the following is a type of Disaster Recovery Plan?
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What is the primary emphasis of patch management?
What is the primary emphasis of patch management?
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Which type of software requires payment to use?
Which type of software requires payment to use?
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Which remote access method connects home to a fiber cabinet using coaxial cables?
Which remote access method connects home to a fiber cabinet using coaxial cables?
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What does endpoint security specifically involve?
What does endpoint security specifically involve?
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Which of the following best describes Disaster Recovery as a Service (DRaaS)?
Which of the following best describes Disaster Recovery as a Service (DRaaS)?
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What is the purpose of risk evaluation in an organization?
What is the purpose of risk evaluation in an organization?
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Study Notes
System Administration
- System Administrator: First point of contact for network users with technical problems
- Server Administrator: Maintains server operating systems
- Network Administrator: Maintains network infrastructure
- Database Administrator (DBA): Maintains company/organization databases, responsible for backups in case of power outages or disasters
- Skills and qualifications of a System Administrator: problem-solving in stressful situations, strong attention to detail, communication skills, explaining technical concepts to non-technical users, time management
Content Management Systems
- Content Management System (CMS): Application for managing web content
- Presentation Layer: Translates data for application needs
- Portals: Manage, present, and aggregate information
- Web Content Management: Management of website content
- Enterprise Content Management (ECM): Management of general business content
- Digital Asset Management (DAM): Management and manipulation of digital assets (images, audio, video)
- Records Management (RM): Management of transactional information and business records
Backup Management
- Differential backup: Backup of changes since the last full backup
- Mirrored backup: Backup of data to multiple locations for redundancy
- Full backup: Backup of all data
- Incremental backup: Backup of changes since the last backup (full or incremental)
- Virtual backup: Backup of virtual machines
- Network vulnerabilities: Allow threats (spyware, malware) to enter a network
- Penetration Tests (pen tests): Used to identify vulnerabilities
- Endpoint security: Protects remote devices connected to a network
- Risk evaluation: Assess potential hazards
- Testing and optimization: Continuous testing and updates of disaster recovery strategy
Disaster Recovery Plan
- Backup: Creating copies of data
- Cold Site: Backup facility that needs some setup; personnel may need to travel
- Hot Site: Fully operational backup facility
- Disaster Recovery as a Service (DRaaS): Disaster recovery services provided by third party
- Backup As A Service (BaaS): Backup services provided by third party
- Data center disaster recovery: Recovery strategies for data centers
- Virtualization: Using virtual machines for recovery
- Point-in-time copies: Create snapshots for instant recovery
File Systems
- File System: Organizes and manages data on a storage device
- Hard Disk: Data stored electromagnetically on platters (tracks)
- Buffer Memory: Mechanical process of data reading/writing
- File Allocation Table (FAT): Simple, reliable file system (legacy)
- Global File System (GFS): Linux file system
- Distributed File System (DFS): File system with data across multiple servers
- CD-ROM, DVD-ROM: Read-only optical storage disks
- CD-R, DVD-R: Recordable disks, cannot be overwritten
- CD-RW, DVD-RW: Re-writable disks
- Platter: Physical media for data storage in disk drives
- File system: Logical disk component for managing disk operations
- FAT: 1977 design for floppy disks, adapted for hard disks
- Hierarchical File System (HFS): Mac operating system file system
Software Categories
- Application software: Programs for end-users
- Firmware: Software embedded in computer components
- Driver software: Communicates with hardware
- Utility software: Analyzes and optimizes devices
- Package Management System (PMS): Manages software installations
Compliance and Security
- Patch management: Ensuring software updates
- Cyber-attacks: Rising threat to organizations
- Compliance: Maintaining regulatory requirements
- Closed Source Software: Commercial or private software with a fee
- Freeware software: Closed source with no disclosure of source code
- Open source: Software with publicly available source code
Remote Access
- Remote Access: Authorized access from a distance
- Cable Broadband: Connects to fibre cabinet
- DSL (Digital Subscriber Line): Uses existing telephone lines
- Cellular Internet: Wireless connection via cellphone towers
- Satellite Internet: Wireless connection via orbiting satellites
- Fiber Optics: Data transmission via optical cables
Network Models
- OSI (Open System Interconnection) Model: Conceptual framework for understanding and implementing network connections
- Physical Layer (Layer 1): Transmission of raw bitstreams
- Data Link Layer (Layer 2): Reliable communication between connected nodes
- Network Layer (Layer 3): Routing data packets across networks
- Transport Layer (Layer 4): Ensures end-to-end communication integrity
- Session Layer (Layer 5): Manages connections
- Presentation Layer (Layer 6): Translates data for application layer
- Application Layer (Layer 7): Closest to the user, interacts with applications
- Local Area Network (LAN): Rapid, accurate transmission over a small area
- Wide Area Network (WAN): Network spanning a large geographic area
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Description
This quiz covers essential roles within system administration, including those of system, server, network, and database administrators. It also delves into content management systems, their layers, and types such as web and enterprise content management. Test your understanding of these critical IT concepts!
