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WorksheetsOSI Model Review
Total questions: 40
Worksheet time: 20mins
What is SMTP used for?
Sending Emails
Logging in Remotely
Used to receive emails
File Transfer
What is POP used for?
Receiving Emails
Logging in Remotely
Sending Emails
File Transfer
What is IMAP used for?
Receiving Emails
Logging in Remotely
Sending Emails
File Transfer
What is HTTP used for?
Fetching HTML Files
Sending Emails
Receiving Emails
Maps dynamic IPs to MAC addresses
What is SSH used for?
Logging in Remotely
Receiving Emails
Sending Emails
File Transfer
What is Telnet used for?
Logging in Remotely
Receiving Emails
Sending Emails
File Transfer
What is ARP used for?
Maps dynamic IPs to MAC addresses
Receiving Emails
Sending Emails
File Transfer
What is ICMP used for?
Transmits Error Messages
Logging in Remotely
Sending Emails
File Transfer
Why is SSH better than Telnet?
SSH encrypts your data
SSH lets you remote into more devices
SSH can also send images
SSH can also receive images
What does ISP stand for?
Internet Service Provider
Image Scrolling Plotter
Inbox Scanner Partition
Integrated Safe Packet
Which of the following is NOT a feature of TCP?
Very fast and best for streaming data
Guarantees delivery via retransmission
Reorders packets at receiver end
Has acknowledgement messages
Which of the following is a GOOD use for UDP?
Watching a video stream
Making google drive
Sending/receiving emails
Fetching HTML files
What PDU does the Application Layer use?
Data
Segment/Datagram
Packet
Frame
What PDU does the Presentation Layer use?
Data
Segment/Datagram
Packet
Frame
What PDU does the Session Layer use?
Data
Segment/Datagram
Packet
Frame
What PDU does the Transportation Layer use?
Segment/Datagram
Data
Packet
Frame
What PDU does the Network Layer use?
Packet
Segment/Datagram
Bit
Frame
What PDU does the Data Link Layer use?
Frame
Segment/Datagram
Bit
Packet
What PDU does the Physical Layer use?
Bit
Frame
Packet
Segment/Datagram
What does the Application Layer do?
Displays data in a program for a user
Formats, encrypts, and compresses data
Handles authentication and authorization
Transmits Data using TCP/UDP
What does the Presentation Layer do?
Formats, encrypts, and compresses data
Creates packets with IP addresses
Handles authentication and authorization
Transmits data using TCP/UDP
What does the Session Layer do?
Handles authentication and authorization
Displays data in a program for a user
Formats, encrypts, and compresses data
Transmits data using TCP/UDP
What does the Transport Layer do?
Transmits data using TCP/UDP
Transmits bits over cables/wifi
Formats, encrypts, and compresses data
Creates packets with IP addresses
What does the Network Layer do?
Creates packets with IP addresses
Transmits bits over cables/wifi
Formats, encrypts, and compresses data
Transmits data using TCP/UDP
What does the Data Link Layer do?
Encapsulates packets into frames
Transmits bits over cables/wifi
Formats, encrypts, and compresses data
Transmits data using TCP/UDP
What does the Physical Layer do?
Transmits bits over cables/wifi
Creates packets with IP addresses
Formats, encrypts, and compresses data
Transmits data using TCP/UDP
What device forwards a message to all connected devices?
Hub
Router
Switch
Modem
What device assigns IP addresses to connected devices?
Router
Hub
Switch
Modem
What device forwards messages based on MAC addresses?
Switch
Router
Hub
Modem
What device translates coaxial cable signals to ethernet?
Modem
Router
Switch
Hub
What kind of physical device transmits electrical currents over copper wire?
Ethernet
Fiber-Optic
Wi-Fi
Bluetooth
What kind of physical device carries light over a cable?
Fiber-Optic
Ethernet
Wi-Fi
Bluetooth
What kind of wireless transmission pairs two devices together?
Bluetooth
Ethernet
Wi-Fi
Fiber-Optic
What kind of wireless transmission allows connection to the internet?
Wi-Fi
Bluetooth
Ethernet
Fiber-Optic
What is the lowest level of the OSI Model?
Physical
Data Link
Network
Transport
What is the highest level of the OSI Model?
Application
Presentation
Session
Transport
