In a Token Ring (IEEE 802.5) network, what specific action does the intended recipient station perform on the data frame as it passes around the ring? ⁹

Why does delay distortion NOT occur in wireless (unguided) transmission?

Based on the register and memory contents specified, find the value of the operand for the “Relative Addressing Mode”

Consider the two 4-bit registers r1 contains 10001 and r2 contain 11111. What is the value of r2 after executing the following instructions?           

1.       SHR R1,R2

2.       SHL R1,R2

3.       CIL R2

The effective address is a address of ______________ .

Write down the shortest path between switch S3 and switch S1. 

The designer of a communications facility must deal with four factors: the data rate that is used for digital information, the amount of noise and other impairments, the level of error rate that is acceptable and the ________ of the signal.

The memory map below gives the contents of each of the locations of a simple memory.  Each of these locations uses 4-bit addresses and contains a 4-bit binary value.  Write the value accessed from memory and loaded into R0 after executing the following instruction.  Assume that r1 initially contains 0001 and r2 contains 001 1  

 LOAD  R0, [R1, R2]

 Address                  Memory contents

The _______ signal indicate whether data is to be read into or written out of the CPU, whether the CPU is accessing memory or an I/O device, and whether the I/O device or memory is ready to transfer data.