Q. In the OSI model, which layer is responsible for routing packets between different networks?
A.
Transport Layer
B.
Network Layer
C.
Session Layer
D.
Physical Layer
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Solution
The Network Layer (Layer 3) is responsible for routing packets between different networks, determining the best path for data transmission.
Correct Answer:
B
— Network Layer
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Q. What is the maximum length of an IPv4 address?
A.
16 bits
B.
32 bits
C.
64 bits
D.
128 bits
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Solution
An IPv4 address is 32 bits long, allowing for approximately 4.3 billion unique addresses.
Correct Answer:
B
— 32 bits
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Q. What is the primary purpose of a switch in a network?
A.
To route packets between different networks
B.
To connect devices within the same network
C.
To provide internet access
D.
To encrypt data
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Solution
A switch connects devices within the same network, using MAC addresses to forward data to the correct destination.
Correct Answer:
B
— To connect devices within the same network
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Q. What layer of the OSI model is responsible for end-to-end communication and error recovery?
A.
Application Layer
B.
Transport Layer
C.
Network Layer
D.
Data Link Layer
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Solution
The Transport Layer (Layer 4) is responsible for end-to-end communication and error recovery, ensuring complete data transfer.
Correct Answer:
B
— Transport Layer
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Q. What type of addressing does the Network Layer use to identify devices on a network?
A.
Physical addresses
B.
Logical addresses
C.
Port numbers
D.
Session IDs
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Solution
The Network Layer uses logical addresses (such as IP addresses) to identify devices on a network.
Correct Answer:
B
— Logical addresses
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Q. What type of addressing does the Network Layer use?
A.
Physical addressing
B.
Logical addressing
C.
Port addressing
D.
Session addressing
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Solution
The Network Layer uses logical addressing, such as IP addresses, to identify devices on a network.
Correct Answer:
B
— Logical addressing
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Q. Which layer of the OSI model does the HTTP protocol operate on?
A.
Application Layer
B.
Transport Layer
C.
Network Layer
D.
Session Layer
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Solution
HTTP (Hypertext Transfer Protocol) operates at the Application Layer (Layer 7) of the OSI model.
Correct Answer:
A
— Application Layer
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Q. Which layer of the TCP/IP model corresponds to the Application Layer of the OSI model?
A.
Network Layer
B.
Transport Layer
C.
Application Layer
D.
Data Link Layer
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Solution
The Application Layer of the TCP/IP model corresponds directly to the Application Layer of the OSI model, handling high-level protocols and user interfaces.
Correct Answer:
C
— Application Layer
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Q. Which of the following is a characteristic of the OSI model?
A.
It is a protocol suite.
B.
It has 5 layers.
C.
It is a theoretical framework.
D.
It defines hardware specifications.
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Solution
The OSI model is a theoretical framework that standardizes the functions of a telecommunication or computing system into seven abstraction layers.
Correct Answer:
C
— It is a theoretical framework.
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Q. Which of the following is NOT a function of the Transport Layer?
A.
Segmentation of data
B.
Flow control
C.
Routing of packets
D.
Error detection
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Solution
Routing of packets is not a function of the Transport Layer; it is handled by the Network Layer.
Correct Answer:
C
— Routing of packets
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Q. Which protocol is primarily used for reliable data transmission in the TCP/IP model?
A.
UDP
B.
ICMP
C.
TCP
D.
HTTP
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Solution
TCP (Transmission Control Protocol) is used for reliable data transmission, providing error checking and guarantees that data is delivered in order.
Correct Answer:
C
— TCP
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Q. Which protocol is used for error reporting in the TCP/IP suite?
A.
TCP
B.
UDP
C.
ICMP
D.
ARP
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Solution
ICMP (Internet Control Message Protocol) is used for error reporting and diagnostic functions in the TCP/IP suite.
Correct Answer:
C
— ICMP
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Q. Which protocol is used for reliable transmission in the TCP/IP model?
A.
UDP
B.
IP
C.
TCP
D.
ICMP
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Solution
TCP (Transmission Control Protocol) is used for reliable transmission, providing error recovery and flow control.
Correct Answer:
C
— TCP
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