Recent questions tagged cil-2026

$\_\_\_\_$ is NOT a valid token typically generated by a lexical analyzer.CompilerKeywordParserVariable

In SRTF (Shortest Remaining Time First) scheduling, which process is selected next?One with the highest priorityOne with the shortest remaining burst timeOne with the lon...

In a circular queue implemented using an array, how is the rear counter updated after an enqueue operation?Reset to zero unconditionallyNo update to rear pointer is neede...

If a measurement is recorded as $12.8$ cm and the true value is $13.0$ cm , what is the absolute error?$0$ cm$0.2$ cm$0.1$ cm$1.2$ cm

Given the $2$D arrayint arr[3][3] ={{1,2,3},{4,5,6},{7,8,9}};what is the value of*(*(arr+1)+2)?$6$$3$$8$$5$

What is the best approach to delete an element from an unsorted array?Sort the array and then deleteReplace the element with the last element and reduce the array sizeRep...

Which statement best describes both an advantage and a disadvantage of Insertion Sort?Efficient for nearly sorted data due to adaptability but impractical for large datas...

What is the purpose of the Root Name Server in the DNS hierarchy?It resolves domain names directlyIt provides IP addresses of Authoritative Name Servers for Top-Level Dom...

A system must recognize any number of consecutive '$\mathrm{a}$'s. Which regular expression correctly models this?$\mathrm{ab}^*$$\mathrm{a}^*$$\mathrm{a}+$$\mathrm{a}?$

Which one of the following statements is true for a Hermitian matrix?All elements are positive numbersAll diagonal elements are real numbersSum of diagonal elements is ze...

Which notation represents the worst-case time complexity?Big Omega $(\Omega)$Small $\mathrm{o}$ $\mathrm{(o)}$Big $\mathrm{O}(\mathrm{O})$Big Theta $(\Theta)$

Which constraint ensures that a foreign key value in one table either matches a primary key in another table or is NULL (if allowed) in DBMS?Domain constraintKey constrai...

In the context of algorithm design and analysis, which of the following represents the initial step in the design process?Implement the algorithm in a Computer programmin...

Which statement correctly differentiates between SRAM and DRAM?DRAM is faster and more expensive than SRAMSRAM requires periodic refreshing; DRAM does notSRAM is faster b...

In computer networks, what is the primary difference between a service and a protocol?Both service and protocol define how operations are performed.A service defines what...

Which statement about left recursion in context-free grammars is accurate?Left recursion can be direct or indirect and may lead to infinite recursion in top-down parsers....

Consider the following grammar $\mathrm{G}$:$$\begin{array}{l}\mathrm{E} \rightarrow \mathrm{~T} \mathrm{E}^{\prime} \\\mathrm{E}^{\prime} \rightarrow+\mathrm{T} \mathrm{...

Identify the correct option for project operation in relational algebra:Statement-$1$: The project operation is a binary operation that returns its argument relation, wit...

Which of the following statements is true regarding the differentiability of a function at a point?A function may be discontinuous at a point and still be differentiable ...

You are tasked to construct a binary search tree (BST) from a stream of incoming sensor readings, where each reading is processed as it arrives. Midway, the sensor malfun...

A $32$-bit $\mathrm{IEEE~} 754$ single-precision floating-point number is represented as:$0100 \: 0001 \: 0100 \: 1001 \: 0000 \: 0000 \: 0000 \: 0000$What is the decimal...

Which scenario is least suitable for sparse matrix representation in computer memory?A matrix where most elements are nonzeroA diagonal matrixA large matrix with many zer...

Which of the following statements are TRUE about server and client side scripting in computer networks?$\text{S}1$: PHP is used for server side scripting$\text{S}2$: HTML...

Which statement best describes a zero-address instruction in stack-based architectures?The instruction contains two explicit operand fields.Operands are stored in accumul...

Given a code snippet in C programming language as follows:int a = 10; int *p; int w; p = &a;Which statement correctly assigns the address of 'p' to 'w'?w=p;w = &p;w=&&a;...

Which of the following correctly describes loopback addressing?Range from $127.0 .0 .0$ to $127.255 .255 .255$ used for internal host testing.Used to map private IP to pu...

Which of the following traversals can be used to reconstruct a unique binary tree, if combined with Preorder?InorderPreorder alone is enoughPostorderLevel Order

In a machine instruction, what does the opcode primarily define?The size of the instruction in bits.The memory address where data is stored.The type of operation the proc...

Why is it considered good practice to close files explicitly even if the programming language runtime may close them at program termination?To guarantee file permissions ...

Consider the following declaration of array in C language.int arr[5];Which of the following statements is TRUE about array '$\operatorname{arr}$'?The size of array '$\ope...