Question 1

Many cables have "RS-232" connectors with some wires crossed or connected to each other because….

Accepted Answer

A) there are various RS-232 standards. 
B) asynchronous modem reverses the direction of transmitted and received data from the standard. 
C) accept commands from the terminals Via Rs-232 interface. 
D) many computers and peripherals use RS-232 serial interfaces, but not as DTE-to-DCE

Question 2

The disadvantage of using a parallel mode of communication is ______

Accepted Answer

A) All of the mentioned 
B) Leads to erroneous data transfer 
C) Security of data 
D) It is costly

Question 3

RS-232, RS-449, RS-530, V-24, and X-21 are examples of?

Accepted Answer

A) standards for various types of transmission channels. 
B) standards for interfaces between terminals and modems. 
C) two methods of error detection and correction 
D) standards for end-to-end performance of data communication systems.

Question 4

Antilock brake systems, flight management systems, pacemakers are examples of ____________

Accepted Answer

A) safety critical system 
B) hard real time system 
C) soft real time system 
D) safety critical system and hard real time system

Question 5

What is the maximum device handling capacity of serial standard protocol RS485 in terms of drivers and receivers on a single line?

Accepted Answer

A) 8 
B) 10 
C) 16 
D) 32

Exam 4: ISA, Communication Modes, Wlan, Serial Protocols, ARM Processors, and Real-Time Systems

Many cables have "RS-232" connectors with some wires crossed or connected to each other because….

The disadvantage of using a parallel mode of communication is ______

RS-232, RS-449, RS-530, V-24, and X-21 are examples of?

Antilock brake systems, flight management systems, pacemakers are examples of ____________

What is the maximum device handling capacity of serial standard protocol RS485 in terms of drivers and receivers on a single line?