Q. In IP addressing, what does the subnet mask determine?
A.
The maximum number of hosts
B.
The network portion of an IP address
C.
The type of protocol used
D.
The speed of the connection
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Solution
The subnet mask determines the network portion of an IP address, allowing devices to identify which part of the address refers to the network and which part refers to the host.
Correct Answer:
B
— The network portion of an IP address
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Q. What is the primary purpose of routing in a network?
A.
To switch data frames
B.
To determine the best path for data packets
C.
To encrypt data
D.
To manage user sessions
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Solution
Routing is primarily used to determine the best path for data packets to travel across networks, ensuring efficient data delivery.
Correct Answer:
B
— To determine the best path for data packets
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Q. What is the primary purpose of the Physical layer in the OSI model?
A.
Data encryption
B.
Signal transmission
C.
Session establishment
D.
Data compression
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Solution
The primary purpose of the Physical layer (Layer 1) is to transmit raw bitstreams over a physical medium.
Correct Answer:
B
— Signal transmission
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Q. Which layer of the OSI model is responsible for session management?
A.
Transport Layer
B.
Session Layer
C.
Presentation Layer
D.
Application Layer
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Solution
The Session Layer (Layer 5) is responsible for managing sessions between applications, establishing, maintaining, and terminating connections.
Correct Answer:
B
— Session Layer
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Q. Which of the following is NOT a function of the Network Layer?
A.
Packet forwarding
B.
Logical addressing
C.
Error recovery
D.
Routing
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Solution
Error recovery is not a function of the Network Layer; it is typically handled by the Transport Layer.
Correct Answer:
C
— Error recovery
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Q. Which protocol is used for sending error messages and operational information in a network?
A.
TCP
B.
UDP
C.
ICMP
D.
HTTP
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Solution
ICMP (Internet Control Message Protocol) is used for sending error messages and operational information about network conditions.
Correct Answer:
C
— ICMP
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