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The data rate of an SPI is __________

1. 10Mbps
2. 25Mbps
3. 40Mbps
4. 50Kbp

✅ Correct Answer: 2

Which one of the following scalability is low?

1. UART
2. SPI
3. 12C
4. None of the above

✅ Correct Answer: 1

What is the standard form of USR?

1. UART Serial Register
2. UART Status Register
3. USART Simple Register
4. None of the above

✅ Correct Answer: 2

The transmitter type of SPI is __________

1. Synchronous
2. Asynchronous
3. Both a and b
4. None of the above

✅ Correct Answer: 1

The data rate of I2C is ___________

1. 1Mbps
2. 2Mbps
3. 3Mbps
4. 4Mbps

✅ Correct Answer: 1

Which one of the following scalability is high?

1. I2C
2. UART
3. SPI
4. None of the above

✅ Correct Answer: 1

What is the standard form of UBRR? None of the above

1. UART Baud Rate Register
2. USART Baud Rate Register
3. USART Baud Register
4. None of the above

✅ Correct Answer: 1

The maximum speed of a UART is ___________

1. 115Kbps
2. 1Kbps
3. 115.2Kbps
4. 1.2Kbps

✅ Correct Answer: 3

The maximum speed of an SPI is ___________

1. 115Kbps
2. 4Mbps
3. 115.2Kbps
4. 1.2Kbps

✅ Correct Answer: 2

What is the standard form of UCR?

1. UART Control Register
2. USART Common Register
3. USART Control Register
4. None of the above

✅ Correct Answer: 1

The transmitter type of I2C is _______

1. Synchronous
2. Asynchronous
3. Both a and b
4. None of the above

✅ Correct Answer: 1

The maximum speed of I2C is ___________

1. 15Kbps
2. 4Mbps
3. 115.2Kbps
4. 1Mbps

✅ Correct Answer: 4

The maximum distance of a UART is ___________

1. 10 m
2. 12 m
3. 15 m
4. 29 m

✅ Correct Answer: 3

In a UART, the maximum possible number of devices in a bus is ___________

1. Two
2. Unlimited
3. Four
4. Eight

✅ Correct Answer: 1

The associated protocol for serial interface RS-422 is ___________ UART I2C SPI

1. UART
2. SPI
3. 12C
4. None of These

✅ Correct Answer: 1

The master unit is ______ in UART

1. Variable
2. Fixed
3. Variable or fixed
4. None of These

✅ Correct Answer: 1

The maximum speed of RS-485 is ________

1. 15Kbps
2. 4Mbps
3. 115.2Kbps
4. 1Mbps

✅ Correct Answer: 3

The maximum distance of SPI is ___________

1. 0.1m
2. 12m
3. 15m
4. 29m

✅ Correct Answer: 1

In SPI, the maximum possible number of devices in a bus is ___________

1. Unlimited
2. Two
3. Eight
4. Several

✅ Correct Answer: 1

The master unit is ______ in USB 2.0

1. Variable
2. Fixed
3. Variable or fixed
4. None of These

✅ Correct Answer: 2

The speed of USB is ______

1. 12M bit /sec
2. 1M bit /sec
3. 2M bytes/sec
4. 4M bytes/sec

✅ Correct Answer: 1

The speed of SCSI is ______

1. 160M bytes/sec
2. 1M bytes/sec
3. 2M bytes/sec
4. 4M bytes/sec

✅ Correct Answer: 1

The maximum distance of I2C is ____________

1. 1m
2. 2m
3. 0.5m
4. 12m

✅ Correct Answer: 3

In I2C, the maximum possible number of devices in a bus is _________

1. 6
2. 4
3. 10
4. 127

✅ Correct Answer: 4

The maximum throughput of RS 232 is _____________

1. 20KB/sec
2. 2KB/sec
3. 28.8KB/sec
4. 10KB/sec

✅ Correct Answer: 3

The product availability of RS-232 is _____________

1. >500
2. <1000
3. >10,000
4. None of these

✅ Correct Answer: 3

The maximum distance of RS-485 is _________

1. 1.2km
2. 15km
3. 9km
4. 10km

✅ Correct Answer: 1

The maximum throughput of an Ethernet is _____________

1. 20KB/sec
2. 125MB/sec
3. 28.8KB/sec
4. 10KB/sec

✅ Correct Answer: 2

The maximum cable length of RS-232 is ___________

1. 1.2km
2. 1.5km
3. 9km
4. 10km

✅ Correct Answer: 2

The maximum cable length of USB is ______

1. 1.2km
2. 1.5km
3. 9km
4. 30km

✅ Correct Answer: 4

What is the standard form of PCON?

1. Power Control
2. Power Control Receiver
3. Power Control Register
4. None of These

✅ Correct Answer: 3

How many lines does I2C use between multiple slaves and multiple masters?

1. One
2. Two
3. Three
4. Four

✅ Correct Answer: 2

What is the standard form of UARTFR?

1. UART Flag Register
2. USART Flag Register
3. UART Register
4. None of These

✅ Correct Answer: 1

Which one of the following is a write-only register?

1. FCR
2. IIR
3. both (a) and (b)
4. None of the above

✅ Correct Answer: 1

The UART transmitter consists of ___________

1. FIFO module
2. Shift register
3. Hold register
4. All of the above

✅ Correct Answer: 4

An UART used for _______ access

1. Mainframe
2. Internet
3. both (a) and (b)
4. None of These

✅ Correct Answer: 3

What is the standard form of MCR?

1. Modem Control Register
2. Modem Control Receiver
3. Modem Common Register
4. None of These

✅ Correct Answer: 1

________ are the revision identification registers

1. REVID1
2. REVID2
3. Both A and B
4. None of the above

✅ Correct Answer: 3

What is the standard form of MDR?

1. Modem Definition Register
2. Mode Definition Receiver
3. Module Data Register
4. None of These

✅ Correct Answer: 1

Which register contains the data to be transmitted?

1. RBR
2. THR
3. FCR
4. None of the above

✅ Correct Answer: 2

Which register contains the data which is recently received?

1. RBR
2. THR
3. FCR
4. None of These

✅ Correct Answer: 1

Which register controls the universal asynchronous receiver transmitter frame formatting?

1. RBR
2. THR
3. FCR
4. LCR

✅ Correct Answer: 4

What is the standard form of MSR?

1. Modem Status Register
2. Mode Simple Receiver
3. Module Data Register
4. None of These

✅ Correct Answer: 1

Which register is used to disable/enable the transmission?

1. TER
2. THR
3. FCR
4. LCR

✅ Correct Answer: 1

Which one of the following registers is a least significant byte of a universal asynchronous receiver transmitter baud rate generator value?

1. DLL
2. DLM
3. both (a) and (b)
4. None of these

✅ Correct Answer: 1

Which one of the following registers is a most significant byte of a universal asynchronous receiver transmitter baud rate generator value?

1. DLL
2. DLM
3. both (a) and (b)
4. None of These

✅ Correct Answer: 2

What is the standard form of UDRE?

1. UART Data Register Empty
2. UART Data Register
3. USART Data Register Empty
4. None of these

✅ Correct Answer: 1

What are the applications of a UART?

1. Bluetooth modules
2. GPS units
3. Microcontrollers
4. All of the above

✅ Correct Answer: 4

What is the standard form of DUDRE?

1. Dual UART Data Register Empty
2. Digital UART Data Register Empty
3. Data UART Data Register Empty
4. None of These

✅ Correct Answer: 1

The UART 16550A has ____________FIFO buffers

1. 2-byte
2. 4byte
3. 8-byte
4. 16-byte

✅ Correct Answer: 4

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