Midterm Theory Review

Convert the hexadecimal AF to a decimal number.

• 175

• 165

• 180

• 190

Which address is used by a Layer 2 switch to build its MAC address table?

• Destination MAC address

• Source MAC address

• Destination IP address

• Source IP address

• Broadcast address

Which of the following are application layer protocols? (Choose all that apply.)

• FTP

• Ethernet

• Telnet

• UDP

• CDP

Which layer provides services to exchange individual pieces of data over the network between identified end devices?

• Session layer

• Transport layer

• Data link layer

• Presentation layer

Why is full-duplex operation desirable?

• Full duplex can take advantage of coaxial cabling

• Full duplex allows for the detection of collisions so that data can be retransmitted when the wire is free

• Full duplex provides for LAN to LAN connectivity

• Full duplex allows simultaneous transmit and receive functions, providing higher overall throughput.

What is the most common Layer 2 device?

• Switch

• Router

• Hub

• Bridge

Which layer of the TCP/IP model is responsible for routing?

• Internet Layer

• Application layer

• Network Access Layer

• Network Layer

Which answer correctly lists the OSI PDUs in order?

• Data, packet, frame, segment, bit

• Bit, data, packet, segment, frame

• Bit, frame, segment, packet, data

• Data, segment, packet, frame, bit

What is the term used to describe the 8-bit value used to determine the lifetime of a packet?

• Type

• Version

• Length

• Protocol

• TTL

Which switching mode sacrifices speed for error-free switching?

• Segment-free

• Fragment free

• Cut-through

• Store and forward