Which transmission media provides the highest transmission speed in a network?

• A. Coaxial cable
• B. Twisted pair cable
• C. Optical fiber
• D. Electrical cable

Bits can be sent over guided and unguided media as analog signal by ___________

• A. Digital modulation
• B. Amplitude modulation
• C. Frequency modulation
• D. Phase modulation

The portion of physical layer that interfaces with the media access control sublayer is called ___________

• A. Physical signalling sublayer
• B. Physical data sublayer
• C. Physical address sublayer
• D. Physical transport sublayer

The physical layer provides __________

• A. Mechanical specifications of electrical connectors and cables
• B. Electrical specification of transmission line signal level
• C. Specification for ir over optical fiber
• D. All of the mentioned

In asynchronous serial communication the physical layer provides ___________

• A. Start and stop signalling
• B. Flow control
• C. Both start & stop signalling and flow control
• D. Only start signalling

The physical layer is responsible for __________

• A. Line coding
• B. Channel coding
• C. Modulation
• D. All of the mentioned

The physical layer translates logical communication requests from the ______ into hardware specific operations.

• A. Data link layer
• B. Network layer
• C. Trasnport layer
• D. Application layer

A single channel is shared by multiple signals by ____________

• A. Analog modulation
• B. Digital modulation
• C. Multiplexing
• D. Phase modulation

Wireless transmission of signals can be done via ___________

• A. Radio waves
• B. Microwaves
• C. Infrared
• D. All of the mentioned

When the mail server sends mail to other mail servers it becomes ____________

• A. SMTP server
• B. SMTP client
• C. Peer
• D. Master