Embedded Real Time Operating System Set 1

Computer Science Engineering (CSE)

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This set of Embedded Real Time Operating System Multiple Choice Questions & Answers (MCQs) focuses on Embedded Real Time Operating System Set 1

Q1 |  In a chip, which type/s of pad design/s is/are adopted to solve the problem of pin count?
  • input pad design
  • output pad design
  • three state pad design
  • all of the above
Answer: three state pad design
Q2 | Maze routing is used to determine the _______path for a single wire between a set of points, if any path exists.
  • shortest
  • average
  • longest
  • none of the above
Answer: shortest
Q3 | What is the format of IP address?
  • 34 bit
  • 16 bit
  • 64 bit
  • 32 bit
Answer: 32 bit
Q4 | Many desktops and operating systems include which protocol?
  • ipv6 protocol
  • ipv4 protocol
  • both ipv6 and ipv4 protocol
  • ipv3 protocol
Answer: ipv6 protocol
Q5 | What does I2C stand for?
  • inter-ic
  • intra-ic
  • individual integrated chip
  • intel ic
Answer: inter-ic
Q6 | Which are the two lines used in the I2C?
  •  sda and spdr
  • spdr and scl
  • sda and scl
  • scl and status line
Answer: sda and scl
Q7 | A packet is also referred to as
  • postcard
  • telegram
  • letter
  • data
Answer: telegram
Q8 | WLANs use high power levels and generally require a license for spectrum use. (True or False)
  • true
  • false
Answer: false
Q9 | What is the nominal range of Bluetooth?
  • 1 km
  • 10 m
  • 1 m
  • 10 km
Answer: 10 m
Q10 |  Bluetooth operates in which band?
  • ka band
  • l band
  • ku band
  • 2.4 ghz ism band
Answer: 2.4 ghz ism band
Q11 | Which one of the following offers CPUs as integrated memory or peripheral interfaces?
  • microcontroller
  • microprocessor
  • embedded system
  • memory system
Answer: microcontroller
Q12 | Which of the following offers external chips for memory and peripheral interface circuits?
  • microcontroller
  • microprocessor
  • peripheral system
  • embedded system
Answer: microprocessor
Q13 | Which one of the following is the successor of 8086 and 8088 processor?
  • 80386
  • 80286
  • 80288
  • 80388
Answer: 80286
Q14 | Which of the following processor possess memory management?
  • 80286
  • 80386
  • 8086
  • 8088
Answer: 80286
Q15 | Which of the following is false with respect to UDP?
  • connection-oriented
  • unreliable
  • transport layer protocol
  • low overhead
Answer: connection-oriented
Q16 | Beyond IP, UDP provides additional services such as _______
  • routing and switching
  • sending and receiving of packets
  • multiplexing and demultiplexing
  • demultiplexing and error checking
Answer: demultiplexing and error checking
Q17 | What is the header size of a UDP packet?
  • 8 bytes
  • 8 bits
  • 16 bytes
  • 124 bytes
Answer: 8 bytes
Q18 | In TCP, sending and receiving data is done as _______
  • stream of bytes
  • sequence of characters
  • lines of data
  • packets
Answer: stream of bytes
Q19 | Communication offered by TCP is ________
  • byte by byte
  • full-duplex
  • half-duplex
  • semi-duplex
Answer: full-duplex
Q20 | What kind of socket does an external EPROM to plugged in for prototyping?
  • piggyback
  • single socket
  • multi-socket
  • piggyback reset socket
Answer: piggyback
Q21 | Which is the single device capable of providing prototyping support for a range of microcontroller?
  • rom
  • umbrella device
  • otp
  • ram
Answer: umbrella device
Q22 | Which of the following can determine if two masters start to use the bus at the same time?
  • counter detect
  • collision detect
  • combined format
  • auto-incremental counter
Answer: collision detect
Q23 | Which of the following provides an efficient method for transferring data from a peripheral to memory?
  • dma controller
  • serial port
  • parallel port
  • dual port
Answer: dma controller
Q24 | Which among the below stated lines represent the handshaking variant usually and only controlled by the software in the handshaking process?
  • xon/ xoff
  • dcd & gnd
  • txd & rxd
  •  all of the above
Answer: xon/ xoff
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