Q. In the OSI model, which layer is responsible for session management?
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A.
Transport Layer
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B.
Session Layer
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C.
Presentation Layer
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D.
Application Layer
Solution
The Session Layer (Layer 5) is responsible for managing sessions between applications.
Correct Answer:
B
— Session Layer
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Q. In the OSI model, which layer is responsible for the physical transmission of data?
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A.
Application Layer
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B.
Transport Layer
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C.
Network Layer
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D.
Physical Layer
Solution
The Physical Layer is responsible for the physical transmission of data over the network medium.
Correct Answer:
D
— Physical Layer
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Q. What is the main purpose of the Network layer in the OSI model?
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A.
Data formatting
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B.
Path determination and logical addressing
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C.
Session management
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D.
Data encryption
Solution
The main purpose of the Network layer is path determination and logical addressing to route packets across networks.
Correct Answer:
B
— Path determination and logical addressing
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Q. What is the primary function of the Data Link layer in the OSI model?
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A.
Routing packets
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B.
Error detection and correction
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C.
Establishing sessions
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D.
Providing user interfaces
Solution
The Data Link layer is responsible for error detection and correction as well as framing data for transmission.
Correct Answer:
B
— Error detection and correction
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Q. What is the primary role of the Presentation layer in the OSI model?
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A.
Data encryption and decryption
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B.
Session management
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C.
Routing data
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D.
Error detection
Solution
The primary role of the Presentation layer is to format and translate data, including encryption and decryption.
Correct Answer:
A
— Data encryption and decryption
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Q. What type of addressing is used at the Data Link layer?
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A.
IP Addressing
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B.
MAC Addressing
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C.
Port Addressing
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D.
Logical Addressing
Solution
The Data Link layer uses MAC Addressing to identify devices on the same local network.
Correct Answer:
B
— MAC Addressing
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Q. What type of addressing is used at the Network Layer of the OSI model?
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A.
MAC addressing
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B.
IP addressing
-
C.
Port addressing
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D.
Session addressing
Solution
IP addressing is used at the Network Layer (Layer 3) of the OSI model for routing packets.
Correct Answer:
B
— IP addressing
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Q. Which layer of the OSI model is responsible for data encryption and decryption?
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A.
Transport Layer
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B.
Session Layer
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C.
Presentation Layer
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D.
Application Layer
Solution
The Presentation Layer (Layer 6) is responsible for data encryption and decryption, as well as data formatting.
Correct Answer:
C
— Presentation Layer
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Q. Which layer of the OSI model is responsible for session establishment, maintenance, and termination?
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A.
Transport Layer
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B.
Session Layer
-
C.
Presentation Layer
-
D.
Application Layer
Solution
The Session Layer is responsible for establishing, maintaining, and terminating sessions between applications.
Correct Answer:
B
— Session Layer
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Q. Which layer of the TCP/IP model corresponds to the Network layer of the OSI model?
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A.
Application Layer
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B.
Transport Layer
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C.
Internet Layer
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D.
Link Layer
Solution
The Internet Layer of the TCP/IP model corresponds to the Network layer of the OSI model.
Correct Answer:
C
— Internet Layer
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Q. Which of the following is NOT a function of the Application layer in the OSI model?
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A.
File transfer
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B.
Email services
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C.
Data encryption
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D.
Routing packets
Solution
Routing packets is not a function of the Application layer; it is handled by the Network layer.
Correct Answer:
D
— Routing packets
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Q. Which of the following is NOT a layer in the OSI model?
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A.
Transport Layer
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B.
Network Layer
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C.
Internet Layer
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D.
Session Layer
Solution
The Internet Layer is part of the TCP/IP model, not the OSI model.
Correct Answer:
C
— Internet Layer
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Q. Which protocol operates at the Transport layer of the TCP/IP model?
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A.
IP
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B.
TCP
-
C.
HTTP
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D.
Ethernet
Solution
TCP (Transmission Control Protocol) operates at the Transport layer of the TCP/IP model.
Correct Answer:
B
— TCP
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