Internet of Things Questions and Answers Part-15

1. Which signal is used for pipelining on bis cycle in ARM710T?
a) BWAIT
b) BTRAN
c) BLOK
d) BCLK

Answer: b
Explanation: The signal BTAN[1:0] is placed by one bus cycle. This pipelining should be taken into account when these signals are being decoded. The value of BTRAN[1:0] indicates whether the next bus cycle is a data cycle or an address cycle.

2. _______ pin can be used to extend memory access in whole cycle increments.
a) BTRAN
b) BLOK
c) BWAIT
d) BCLK

Answer: c
Explanation: BWAIT pin can be used to extend memory access in whole cycle increments. BWAIT is driven by the selected slave during the low phase of BCLK.

3. How many DC-DC converters interfaces in ARM7100?
a) 5
b) 3
c) 4
d) 2

Answer: d
Explanation: ARM7100 has two programmable duty ratio 96KHz clock output which is intended to be used as drivers for DC to DC converter in the PSU subsystems.

4. The ARM7TDMI-S uses which pipelining?
a) 2-Stage
b) 3-Stage
c) 4-Stage
d) 5-Stage

Answer: b
Explanation: A 3-stage pipelining is used, so instructions are executed in three stages: Fetch, Decode, Execute.

5. The ARM7TDMI-S processor has __________ types of memory cycle.
a) 5
b) 3
c) 4
d) 2

Answer: c
Explanation: The ARM7TDMI-S processor has 4 types of memory cycle: Non sequential cycle, Sequential cycle, cp processor register transfer cycle, internal cycle.

6. How many types of arduinos do we have?
a) 5
b) 6
c) 8
d) 7

Answer: c
Explanation: There are 4 Arduino boards and 4 Arduino shields that fit on top of Arduino compatible boards to provide additional capability like connecting to the internet, motor controller, LCD screen controlling etc.,.

7. What is the microcontroller used in Arduino UNO?
a) ATmega328p
b) ATmega2560
c) ATmega32114
d) AT91SAM3x8E

Answer: a
Explanation: ATmega328p is a microcontroller which is 32KB of flash ROM and 8-bit microcontroller.

8. What does p refer to in ATmega328p?
a) Production
b) Pico-Power
c) Power-Pico
d) Programmable on chip

Answer: b
Explanation: Picopower technology employs advanced features like multiple clock domains, DMA and event systems to minimize power consumption.

9. Arduino shields are also called as _________
a) Extra peripherals
b) Add on modules
c) Connectivity modules
d) Another Arduinos

Answer: b
Explanation: The Arduino boards can connect with add- on modules termed as shields. Multiple, and possibly stacked shields may be individually addressable via an I2C serial bus.

10. What is the default bootloader of the Arduino UNO?
a) Optiboot bootloader
b) AIR-boot
c) Bare box
d) GAG

Answer: a
Explanation: The optiboot bootloader will take 512 bytes, leaving 32256 bytes for application code. Due to its small size larger up-loadable sketch size is achieved.