Evaluate the Expression Log₂8

question 184

Multiple Choice

Evaluate the expression log₂8.

• A) 4
• B) 5
• C) 2
• D) 3

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Definitions:

Truck Data Bus System

A digital communication network in trucks that carries data between various electronic control units (ECUs).

SAE J1939

Covers both the hardware and software protocols used on the current CAN 2.0 platform for medium-/heavy-truck data bus. A J1939 truck data bus is accessed by connecting to an EST to a nine-pin Deutsch black (pre-2014) or green (post-2014) connector. Post-2014 Volvo-Mack applications require a J1962 connector.

Byte

An arrangement of 8 bits. Each bit can express one of two states such as 0 or 1, high or low voltage, etc. One byte can, therefore, be used to express up to 256 different states.

Bits

Basic units of data in computing, representing a logical state with values of either 0 or 1.