IOT Multiple Choice Questions on “Rasberry Pi”.
1. Does Raspberry Pi need external hardware?
a) True
b) False
Answer: b
Clarification: The RPi can be used without additional hardware (except perhaps a power supply of some kind), it won’t be much use as a general computer. As with any normal PC, it is likely you need some additional hardware.
2. Does RPi have an internal memory?
a) True
b) False
Answer: a
Clarification: The RPi has no internal storage or built-in operating system it requires an SD-card that is set up to boot the RPi.
3. What do we use to connect TV to RPi?
a) Male HDMI
b) Female HDMI
c) Male HDMI and Adapter
d) Female HDMI and Adapter
Answer: c
Clarification: HD TV’s and most LCD Monitors can be connected using a full-size male HDMI cable, and with an inexpensive adapter if DVI is used. HDMI version 1.4 cable is recommended.
4. How power supply is done to RPi?
a) USB connection
b) Internal battery
c) Charger
d) Adapter
Answer: a
Clarification: The unit uses a Micro USB connection to power itself (only the power pins are connected so it will not transfer data over the connection). A standard modern phone charger with a micro USB connector will do, but needs at least 700 mA at 5 volts.
5. What is the Ethernet/LAN cable used in RPi?
a) Cat5
b) Cat5e
c) Cat6
d) RJ45
Answer: d
Clarification: We can use an Ethernet cable or a USB Wifi adapter. The RPi ethernet port is auto-sensing which means that it may be connected to a router or directly to another computer (without the need for a crossover cable).
6. What are the parameters that are default values?
a) Port_Name and Bits
b) Speed and Port_Names
c) Speed and Parity
d) Stop bit and Flow Control
Answer: b
Clarification: Port_Name: Linux automatically assigns different names for different types of serial connectors. For Standard Serial Port: ttyS0 … ttySn
USB Serial Port Adapter: ttyUSB0 … ttyUSBn
Speed: 115200.
7. What is the command used for easy using of GNU screen?
a) $useradd -G {dialout} your_name
b) Screen Port_Name115200
c) Minicom -b 115200 -o -D Port_Name
d) Prompt> # help
Answer: b
Clarification: This command is used to open and write or modify data on GNU screen and we should write in the terminal window.
8. Which instruction set architecture is used in Raspberry Pi?
a) X86
b) MSP
c) AVR
d) ARM
Answer: d
Clarification: ARM assembler is used in Raspberry Pi. Machine language is built up from discrete statements or instructions implemented by a particular processor.
9. What is the default user in Debain on Raspberry Pi?
a) Default
b) User
c) Pi
d) Root
Answer: c
Clarification: Linux users. User management in Raspberry is done on the command line. The default user is Pi, and the password is raspberry. You can add users and change each user’s password.
10. What are the distributions are supported by raspberry Pi?
a) Arch Linux
b) Debain
c) Fedora Remix
d) Arch Linux, Debain, and Fedora Remix
Answer: d
Clarification: These all are the distributors that have Linux operating system which has default GUI for Fedora as Xfce, Mate, None-depends on spin.
11. What bit processor is used in Pi 3?
a) 64-bit
b) 32-bit
c) 128-bit
d) Both 64 and 32 bit
Answer: a
Clarification: The first is a next generation Quad Core Broadcom BCM2837 64-bit ARMv8 processor, making the processor speed increase from 900MHz on the Pi 2 to up to 1.2GHz on the Pi 3.
12. What is the speed of operation in Pi 3?
a) 900MHz
b) 1.2GHz
c) 1GHz
d) 500MHz
Answer: b
Clarification: The first is a next generation Quad Core Broadcom BCM2837 64-bit ARMv8 processor, making the processor speed increase from 900MHz on the Pi 2 to up to 1.2GHz on the Pi 3.
13. WiFi is not present in which of the following models?
a) Raspberry Pi3
b) Raspberry Pi Zero WH
c) Raspberry Pi Zero W
d) Raspberry Pi Zero
Answer: d
Clarification: All the 3 has an inbuilt Wifi in which all of them works on 802.11 n. For Raspberry Pi Zero an external ESP2866 should be connected.
14. Does micro SD card present in all modules?
a) True
b) False
Answer: a
Clarification: All the products have an inbuilt memory as well as an extended memory.
15. How many USB ports are present in Raspberry Pi 3?
a) 5
b) 2
c) 4
d) 3
Answer: c
Clarification: In Raspberry Pi3 there is an upgraded switched power source that goes up to 2.5 Amps instead of just 2 Amps, allowing pi to power even more powerful devices over USB ports.