Suppose a circular queue of capacity (n −1) elements is implemented with an array of n elements. Assume that the insertion and deletion operations are carried out using REAR and FRONT as array index variables, respectively. Initially, REAR = FRONT = 0. The conditions to detect queue full and queue empty are

full: (REAR+1) mod n == FRONT empty: (FRONT+1) mod n == REAR

full: (REAR+1) mod n == FRONT empty: REAR == FRONT

full: (REAR+1) mod n == FRONT empty: (FRONT+1) mod n == REAR

full: REAR == FRONT empty: (REAR+1) mod n == FRONT

full: (FRONT+1) mod n == REAR empty: REAR == FRONT

Suppose a circular queue of capacity (n −1) elements is implemented

1.	Suppose a circular queue of capacity (n −1) elements is implemented with an array of n elements. Assume that the insertion and deletion operations are carried out using REAR and FRONT as array index variables, respectively. Initially, REAR = FRONT = 0. The conditions to detect queue full and queue empty are
A.	full: (REAR+1) mod n == FRONT empty: REAR == FRONT
B.	full: (REAR+1) mod n == FRONT empty: (FRONT+1) mod n == REAR
C.	full: REAR == FRONT empty: (REAR+1) mod n == FRONT
D.	full: (FRONT+1) mod n == REAR empty: REAR == FRONT
Answer» B. full: (REAR+1) mod n == FRONT empty: (FRONT+1) mod n == REAR

Discussion

No Comment Found

Related MCQs

After several defeats in wars, Robert Bruce went in exile and wanted to commit suicide. Just before committing suicide, he came across a spider attempting tirelessly to have its net. Time and again, the spider failed but that did not deter it to refrain from making attempts. Such attempts by the spider made Bruce curious. Thus, Bruce started observing the near-impossible goal of the spider to have the net. Ultimately, the spider succeeded in having its net despite several failures. Such act of the spider encouraged Bruce not to commit suicide. And then, Bruce went back again and won many a battle, and the rest is history. Which one of the following assertions is best supported by the above information?
Were you a bird, you ___________________ in the sky.
Complete the sentence: Universalism is to particularism as diffuseness is to _______________
Which one of the following options is the closest in meaning to the word given below? Nadir
Relation R has eight attributes ABCDEFGH. Fields of R contain only atomic values. F={CH→G, A→BC, B→CFH, E→A, F→EG} is a set of functional dependencies (FDs) so that F+ is exactly the set of FDs that hold for R. The relation R is
Relation R has eight attributes ABCDEFGH. Fields of R contain only atomic values. F={CH→G, A→BC, B→CFH, E→A, F→EG} is a set of functional dependencies (FDs) so that F+ is exactly the set of FDs that hold for R. How many candidate keys does the relation R have?
Consider an instruction pipeline with five stages without any branch prediction: Fetch Instruction (FI), Decode Instruction (DI), Fetch Operand (FO), Execute Instruction (EI) and Write Operand (WO). The stage delays for FI, DI, FO, EI and WO are 5 ns, 7 ns, 10 ns, 8 ns and 6 ns, respectively. There are intermediate storage buffers after each stage and the delay of each buffer is 1 ns. A program consisting of 12 instructions I1, I2, I3, ...., I12 is executed in this pipelined processor. Instruction I4 is the only branch instruction and its branch target is I9. If the branch is taken during the execution of this program, the time (in ns) needed to complete the program is
The preorder traversal sequence of a binary search tree is 30, 20, 10, 15, 25, 23, 39, 35, 42. Which one of the following is the postorder traversal sequence of the same tree?
In an IPv4 datagram, the M bit is 0, the value of HLEN is 10, the value of total length is 400 and the fragment offset value is 300. The position of the datagram, the sequence numbers of the first and the last bytes of the payload, respectively are
Consider a hard disk with 16 recording surfaces (0-15) having 16384 cylinders (0-16383) and each cylinder contains 64 sectors (0-63). Data storage capacity in each sector is 512 bytes. Data are organized cylinder-wise and the addressing format is . A file of size 42797 KB is stored in the disk and the starting disk location of the file is <1200, 9, 40>. What is the cylinder number of the last sector of the file, if it is stored in a contiguous manner?

Discussion

No Comment Found

Related MCQs

Reply to Comment