Understanding the Physical Layer Quiz

True or false? The physical layer is only concerned with wired network connections.

• Only for wireless connections

• True

• False

• Only for fiber optics

True or false? When a frame is encoded by the physical layer, all bits are sent over the media at the same time.

• Only in high-speed networks

• False

• True

• Only in wireless networks

The physical layer of the receiving device passes bits up to which higher level layer?

• Data Link

• Application

• Presentation

• Network

What PDU is received by the physical layer for encoding and transmission?

• Frame

• Bit

• Packet

• Segment

Which of the following is NOT a calculator mentioned in the text?

• IPv4 Addressing Calculator

• IPv6 Subnetting Calculator

• IPv4 VLSM Calculator

• IPv4 CIDR Calculator

What is the primary function of the physical layer?

• To provide error detection

• To establish network protocols

• To encode and transmit bits

• To manage data flow

Which layer does the physical layer receive frames from?

• Application Layer

• Network Layer

• Data Link Layer

• Transport Layer

What type of connections does the physical layer support?

• Only wireless connections

• Only wired connections

• Both wired and wireless connections

• Only fiber optic connections

What is the correct order of layers from the physical layer up to the application layer?

• Application, Transport, Network, Data Link, Physical

• Physical, Data Link, Network, Transport, Application

• Physical, Network, Data Link, Transport, Application

• Data Link, Physical, Network, Transport, Application

Which of the following is a tool mentioned for subnetting?

• IPv6 Addressing Tool

• IPv4 to Decimal Calculator

• IPv4 CIDR Calculator

• IPv4 Addressing Tool