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[1] Which of the following is not a layer in the TCP/IP model?

a) Application

b) Network

c) Transport

d) Physical

[2] Which of the following protocols is responsible for providing reliable data transfer in the Transport layer of the TCP/IP model?

a) IP

b) TCP

c) UDP

d) ICMP

[3] Which of the following protocols is responsible for providing logical addressing in the Network layer of the TCP/IP model?

a) IP

b) TCP

c) UDP

d) ICMP

[4] What is the main function of the Internet Control Message Protocol (ICMP)?

a) Data transfer

b) Error reporting

c) Routing

d) Logical addressing

[5] What is the default maximum transmission unit (MTU) of an Ethernet network?

a) 512 bytes

b) 1500 bytes

c) 5000 bytes

d) 10000 bytes

[6] What is the main function of the Transmission Control Protocol (TCP)?

a) Data transfer

b) Error reporting

c) Routing

d) Guaranteeing reliable data transfer

[7] What is the main function of the User Datagram Protocol (UDP)?

a) Data transfer

b) Error reporting

c) Routing

d) Guaranteeing reliable data transfer

[8] What is the purpose of the Address Resolution Protocol (ARP)?

a) Resolving IP addresses to MAC addresses

b) Routing data packets

c) Guaranteeing reliable data transfer

d) Error reporting

[9] What is the purpose of the Internet Group Management Protocol (IGMP)?

a) Managing multicast group membership

b) Routing data packets

c) Guaranteeing reliable data transfer

d) Error reporting

[10] What is the purpose of the Simple Network Management Protocol (SNMP)?

a) Managing and monitoring network devices

b) Routing data packets

c) Guaranteeing reliable data transfer

d) Error reporting

Answers:

[1] d) Physical

[2] b) TCP

[3] a) IP

[4] b) Error reporting

[5] b) 1500 bytes

[6] d) Guaranteeing reliable data transfer

[7] a) Data transfer

[8] a) Resolving IP addresses to MAC addresses

[9] a) Managing multicast group membership

[10] a) Managing and monitoring network devices

Reasoning:

[1] The TCP/IP model has 4 layers: Application, Transport, Internet, and Link. Physical layer is not a layer in the TCP/IP model.

[2] TCP provides reliable data transfer in the Transport layer of the TCP/IP model by using techniques such as flow control and error checking.

[3] IP provides logical addressing in the Network layer of the TCP/IP model by using IP addresses.

[4] ICMP is used for error reporting, such as informing the sender of a broken connection or a full buffer.

[5] The default MTU of an Ethernet network is 1500 bytes.

[6] TCP guarantees reliable data transfer by using techniques such as flow control, error checking, and retransmission of lost packets.

[7] UDP does not guarantee reliable data transfer, it is used for data transfer.

[8] ARP is used to resolve IP addresses to MAC addresses on a local network.

[9] IGMP is used for managing multicast group membership on a network.

[10] SNMP is used for managing and monitoring network devices

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