List of top Computer Science and IT Engineering Questions

Let 𝑃, 𝑄, 𝑅 and 𝑆 be the attributes of a relation in a relational schema. Let 𝑋 ⟶𝑌
indicate functional dependency in the context of a relational database, where
𝑋, 𝑌 ⊆{𝑃, 𝑄, 𝑅, 𝑆}.
Which of the following options is/are always true?

The height of a binary tree is the number of edges in the longest path from the root
to a leaf in the tree. The maximum possible height of a full binary tree with
23 nodes is _________. (answer in integer)

Which of the following statements is/are true?

Consider the following C statements:
char *str1 = "Hello; /* Statement S1 */
char *str2 = "Hello;"; /* Statement S2 */
int *str3 = "Hello"; /* Statement S3 */
Which of the following options is/are correct?

Let M be a nondeterministic finite automaton (NFA) with 6 states over a finite
alphabet.
Which of the following options CANNOT be the number of states in the minimal
deterministic finite automaton (DFA) that is equivalent to 𝑀 ?

Consider the following grammar where 𝑆 is the start symbol, and 𝑎 and 𝑏 are
terminal symbols.
𝑆 →𝑎𝑆𝑏𝑆 ∣ 𝑏𝑆 ∣ ϵ
Which of the following statements is/are true?

Consider a hash table 𝑃[0, 1, … , 10] that is initially empty. The hash table is
maintained using open addressing with linear probing. The hash function used is
ℎ(𝑥) = (𝑥+ 7) mod 11.
Consider the following sequence of insertions performed on 𝑃:
1, 13, 22, 15, 11, 24
Which of the following positions in the hash table is/are empty after these insertions
are performed?

Let 𝑛 be an odd number greater than 100. Consider a binary minheap with
𝑛 elements stored in an array 𝑃 whose index starts from 1.
Which of the following indices of 𝑃 do/does NOT correspond to any leaf node of
the minheap?

Consider the 8-bit signed integers 𝑋, 𝑌 and 𝑍 represented using the sign-magnitude
form. The binary representations of 𝑋 and 𝑌 are as follows:
𝑋: 10110100 𝑌: 01001100
Which of the following operations to compute 𝑍 result(s) in an arithmetic
overflow?

With respect to a TCP connection between a client and a server, which one of the
following statements is true?

Which of the following statements is/are true with respect to the interaction of a
web browser with a web server using HTTP 1.1?

Consider the following Boolean expression of a function F :
𝐹(𝑃, 𝑄) = (𝑃̅ + 𝑄) ⊕(𝑃̅𝑄)
Which of the following expressions is/are equivalent to F ?

Match each addressing mode in List I with a data element or an element of a data
structure (in a high-level language) in List II:
List I
List II
P. Immediate
1. Element of an array
Q. Indirect
2. Pointer
R. Base with index
3. Element of a record
S. Base with offset/displacement 4. Constant

Which one of the following dependencies among the register operands of different
instructions can cause a data hazard in a pipelined processor?

Consider a processor P whose instruction set architecture is the load-store
architecture. The instruction format is such that the first operand of any instruction
is the destination operand.
Which one of the following sequences of instructions corresponds to the high-level
language statement Z = X + Y ?
Note: X, Y, and Z are memory operands. R0, R1, and R2 are registers.