Network Layer Quiz

What is the primary function of the network layer?

• To provide services for end devices to exchange data

• To encrypt data for secure transmission

• To manage data transport between processes

• To establish a physical connection between devices

Which of the following is a principal network layer communication protocol?

• Internet Control Message Protocol (ICMP)

• Transmission Control Protocol (TCP)

• Hypertext Transfer Protocol (HTTP)

• File Transfer Protocol (FTP)

What does the term 'encapsulation' refer to in the network layer?

• The physical transmission of data

• The encryption of data for security

• The addition of headers to data packets

• The process of sending data over a network

What is the role of a router in the network layer?

• To establish a connection between devices

• To select the best path for packet delivery

• To encrypt data packets

• To manage user authentication

Which of the following best describes the term 'de-encapsulation'?

• The process of adding headers to packets

• The removal of headers from packets at the destination

• The encryption of packets for security

• The fragmentation of packets for transmission

What is a characteristic of the Internet Protocol (IP)?

• It guarantees packet delivery

• It requires a dedicated connection

• It is connectionless

• It is connection-oriented

What does 'Best Effort' mean in the context of IP?

• Packets are encrypted for security

• All packets are guaranteed to be delivered

• Packets are always delivered in order

• Packets may be lost or corrupted

What does 'Media Independent' mean for IP?

• IP requires specific hardware to function

• IP operates independently of the transmission medium

• IP can only operate over fiber-optic cables

• IP is limited to wireless communication

What is the maximum transmission unit (MTU)?

• The number of devices on a network

• The speed of data transmission

• The minimum size of a packet that can be transmitted

• The maximum size of a packet that can be transmitted

What is the purpose of the Time to Live (TTL) field in an IPv4 packet?

• To determine the packet's priority

• To limit the packet's lifetime in the network

• To identify the source address

• To encrypt the packet