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WorksheetsOP2 MIDTERM EXAM P2
Total questions: 20
Worksheet time: 10mins
Which layer of the OSI model describes the interface between two applications on separate computers?
Layer 1: Physical Layer
Layer 5: Session Layer
Layer 4: Transport Layer
Layer 7: Application Layer
Which layer is responsible for reformatting, compressing, and/or encrypting data in a way that the application on the receiving end can read?
Layer 5: Session Layer
Layer 6: Presentation Layer
Layer 3: Network Layer
Layer 2: Data Link Layer
Which protocol is used by the Transport layer to guarantee delivery of data?
UDP
TCP
SMTP
HTTP
What is the principal protocol used by the Network layer?
TCP
FTP
IP
HTTP
Which layer is responsible for moving messages from one node to another until they reach the destination host?
Layer 3: Network Layer
Layer 7: Application Layer
Layer 1: Physical Layer
Layer 5: Session Layer
What is the technical name for a group of bits as it moves from one layer to the next and from one LAN to the next?
Transmission
Message
Data Packet
Protocol Data Unit (PDU)
Which addressing method is used to identify one application among several applications running on a host?
MAC Address
IP Address
Port Number
FQDN
What is the purpose of the Data Link layer in the OSI model?
Responsible for transporting Application layer payloads
Responsible for sending bits via transmission
Responsible for interfacing with physical hardware on the local network
Responsible for reformatting and encrypting data
Which layer is responsible for syncing data between applications and recovering messages if they don't arrive intact?
Layer 4: Transport Layer
Layer 5: Session Layer
Layer 6: Presentation Layer
Layer 2: Data Link Layer
What is the purpose of the Presentation layer in the OSI model?
Responsible for moving messages from one node to another
Responsible for sending bits via transmission
Responsible for transporting Application layer payloads
Responsible for reformatting, compressing, and/or encrypting data
Which layer is responsible for establishing and maintaining a session between two end points for voice conversations or video conferences?
Layer 5: Session Layer
Layer 3: Network Layer
Layer 1: Physical Layer
Layer 7: Application Layer
What is the purpose of the Transport layer in the OSI model?
Responsible for moving messages from one node to another
Responsible for reformatting, compressing, and/or encrypting data
Responsible for transporting Application layer payloads
Responsible for transporting data between applications
Which layer is responsible for sending bits via wired or wireless transmission?
Layer 3: Network Layer
Layer 6: Presentation Layer
Layer 1: Physical Layer
Layer 4: Transport Layer
What is the purpose of the Network layer in the OSI model?
Responsible for interfacing with physical hardware on the local network
Responsible for sending bits via transmission
Responsible for moving messages from one node to another
Responsible for reformatting and encrypting data
Which addressing method is used to uniquely identify each node on a network?
FQDN
Port Number
IP Address
MAC Address
Which layer is responsible for ensuring error-free data transmission between nodes on a network?
Layer 4: Transport Layer
Layer 2: Data Link Layer
Layer 1: Physical Layer
Layer 3: Network Layer
Which layer is responsible for providing encryption and decryption services for data being transmitted?
Layer 6: Presentation Layer
Layer 5: Session Layer
Layer 3: Network Layer
Layer 7: Application Layer
Which layer is responsible for establishing, maintaining, and terminating connections between applications?
Layer 5: Session Layer
Layer 7: Application Layer
Layer 4: Transport Layer
Layer 3: Network Layer
What is the purpose of the Network layer in the OSI model?
Responsible for interfacing with physical hardware on the local network
Responsible for sending bits via transmission
Responsible for moving messages from one node to another
Responsible for reformatting and encrypting data
Which layer is responsible for establishing, maintaining, and terminating connections between applications?
Layer 5: Session Layer
Layer 7: Application Layer
Layer 4: Transport Layer
Layer 3: Network Layer
