Top 150+ Solved Embedded Real Time Operating System MCQ Questions Answer
Q. Which scheme/ strategy is suitable to establish the communication between the access point (AP) and the infrastructure of LANs?
a. non-reception of frame & necessity of retransmission
b. no necessity of working in duplex mode for the host
c. no necessity to prevent the signal fading
d. all of the above
Q. Unauthorised access of information from a wireless device through a bluetooth connection is called _________
a. bluemaking
b. bluestring
c. bluestring
d. bluesnarfing
Q. Bytes of data being transferred in each connection are numbered by TCP. These numbers start with a _________
a. fixed number
b. random sequence of 0’s and 1’s
c. one
d. sequence of zero’s and one’s
Q. Which of the following are external pins whose logic state can be controlled by the processor to either be a logic zero or logic one is known as
a. analogue value
b. display values
c. binary values
d. time derived digital outputs
Q. Which of the following has a quadruple buffered receiver and a double buffered transmitter?
a. intel 8250
b. 16450
c. 16550
d. mc68681
Q. process that is based on IPC mechanism which executes on different systems and can communicate with other processes using message based communication, is called ________
a. local procedure call
b. inter process communication
c. remote procedure call
d. remote machine invocation
Q. Which characteristics of an embedded system exhibit the responsiveness to the assortments or variations in system's environment by computing specific results for real-time applications without any kind of postponement ?
a. single-functioned characteristic
b. tightly-constraint characteristics
c. reactive & real time characteristics
d. all of the above
Q. Which potential mode of operation indicate the frequent sending of byte to the slave corresponding to the reception of an acknowledge signal when it becomes desirable for the master to write to the slave during data transmission in I2C bus?
a. master in master-transmit mode & slave in slave-receive mode
b. slave in slave-transmit mode & master in master-receive mode
c. master in master-transmit mode as well as master-receive mode
d. slave in slave-transmit mode as well as slave-receive mode
Q. Which method of multiple secondary communication in TDMA is acquired/adopted by bluetooth especially where data integrity becomes more crucial than avoiding latency?
a. synchronous connection-oriented (sco) link
b. asynchronous connectionless link (acl)
c. both a & b
d. none of the above
Q. The upper 128 bytes of an internal data memory from 80H through FFH usually represent ___________.
a. general-purpose registers
b. special function registers
c. stack pointers
d. program counters
Q. Which common bus specification provides the fastest data transfer rate?
a. VL bus
b. ISA
c. PCI
d. All of the above