Preparing for the GATE 2025 Computer Science exam requires more than just textbooks—it demands clarity, consistency, and real-time practice with actual exam-level questions. That’s why we’ve curated this comprehensive question bank, covering all 65 questions from the official GATE 2024 CSE (Set 1) paper. Each question is presented exactly as it appeared in the exam, with detailed explanations, step-by-step LaTeX-based solutions, and the officially released answer key. This resource is ideal for aspirants looking to benchmark their performance, understand exam trends, and sharpen their problem-solving approach. Whether you are preparing for GATE 2025 or revising fundamental concepts, this archive will serve as a reliable practice companion. Dive in, test yourself, and reinforce your confidence with every question you solve.
Q.1
If ‘→’ denotes increasing order of intensity, then the meaning of the words
[ dry → arid → parched ] is analogous to
[ diet → fast → ________ ] Which one of the given options is appropriate to fill the blank?
(A) starve
(B) reject
(C) feast
(D) deny
Q.2
If two distinct non-zero real variables x and y are such that
(x + y) is proportional to (x − y),
then the value of x/y is:
(A) depends on xy
(B) depends only on x and not on y
(C) depends only on y and not on x
(D) is a constant
Q.3
Consider the following sample of numbers:
9, 18, 11, 14, 15, 17, 10, 69, 11, 13
What is the median of the sample?
(A) 13.5
(B) 14
(C) 11
(D) 18.7
Q.4
The number of coins of ₹1, ₹5, and ₹10 denominations are in the ratio 5:3:13.
What is the percentage of the total money that is in ₹5 coins?
(A) 21%
(B) 14 2/7 %
(C) 10%
(D) 30%
Q.5
If log(p² + q²) = log(p) + log(q) + 2 log(3),
then what is the value of (p⁴ + q⁴)/(p²q²)?
(A) 79
(B) 81
(C) 9
(D) 83
Q.6
Steve was advised to keep his head _______ before heading _______ to bat;
for, while he had a head _______ batting, he could only do so with a cool head _______ his shoulders.
(A) down, down, on, for
(B) on, down, for, on
(C) down, out, for, on
(D) on, out, on, for
Q.7
A paper sheet of size 54 cm × 4 cm is rolled into a cylinder by joining the longer edges.
A cube has the same surface area as the sheet.
What is the ratio of the volume of the cylinder to that of the cube?
(A) 1/π
(B) 2/π
(C) 3/π
(D) 4/π
Q.8
The pie chart presents the percentage contribution of different macronutrients to a typical 2,000 kcal diet of a person.
The typical energy density (kcal/g) of these macronutrients is given in the table below:
\[
\begin{array}{|c|c|}
\hline
\text{Macronutrient} & \text{Energy density (kcal/g)} \\
\hline
\text{Carbohydrates} & 4 \\
\text{Proteins} & 4 \\
\text{Unsaturated fat} & 9 \\
\text{Saturated fat} & 9 \\
\text{Trans fat} & 9 \\
\hline
\end{array}
\]
The total fat (all three types), in grams, this person consumes is:
(A) 44.4
(B) 77.8
(C) 100
(D) 3,600
Q.9
A 20 cm × 8 cm sheet is folded 3 times along its width (perpendicular to long edge).
What is the perimeter of the final folded sheet?
(A) 18
(B) 24
(C) 20
(D) 21
Q.10
How many squares must be added to make AB a line of symmetry in the given pattern?
(A) 6
(B) 4
(C) 5
(D) 7
Q.11
Let \( f: \mathbb{R} \rightarrow \mathbb{R} \) be a function defined as:
\[ f(x) = \max(x, x^3) \] The set of all points where \( f(x) \) is NOT differentiable is:
(A) {−1, 1, 2}
(B) {−2, −1, 1}
(C) {0, 1}
(D) {−1, 0, 1}
Q.12
The product of all eigenvalues of the matrix
\[ A = \begin{bmatrix} 1 & 2 & 3 \\ 4 & 5 & 6 \\ 7 & 8 & 9 \end{bmatrix} \] is:
(A) −1
(B) 0
(C) 1
(D) 2
Q.13
Consider a system that uses 5 bits to represent signed integers in 2’s complement format.
Two integers A and B are represented as:
A = 01010, B = 11010
Which one of the following operations will result in an arithmetic overflow or underflow?
(A) A + B
(B) A − B
(C) B − A
(D) 2 × B
Q.14
A permutation is sampled uniformly at random from all permutations of {1, 2, 3, …, n}, with \( n \geq 4 \).
Let X be the event that 1 occurs before 2, and Y be the event that 3 occurs before 4.
Which of the following statements is TRUE?
(A) The events X and Y are mutually exclusive
(B) The events X and Y are independent
(C) Either event X or Y must occur
(D) Event X is more likely than event Y
Q.15
Which one of the following statements is FALSE?
(A) In the cycle stealing mode of DMA, one word of data is transferred between an I/O device and main memory in a stolen cycle
(B) For bulk data transfer, the burst mode of DMA has a higher throughput than the cycle stealing mode
(C) Programmed I/O mechanism has a better CPU utilization than the interrupt-driven I/O mechanism
(D) The CPU can start executing an interrupt service routine faster with vectored interrupts than with non-vectored interrupts
Q.16
A user starts browsing a webpage hosted at a remote server.
The browser opens a single TCP connection to fetch the entire webpage.
The webpage consists of a top-level index page with multiple embedded image objects.
Assume all caches (DNS, browser) are initially empty.
Packets that leave the user’s computer (in some order):
(i) HTTP GET request for the index page
(ii) DNS request to resolve the web server’s name to IP
(iii) HTTP GET request for an image
(iv) TCP SYN to open a connection
Which is the CORRECT chronological order?
(A) (iv), (ii), (iii), (i)
(B) (ii), (iv), (iii), (i)
(C) (ii), (iv), (i), (iii)
(D) (iv), (ii), (i), (iii)
Q.17
Given an integer array of size N, we want to check if it is sorted (either ascending or descending).
An algorithm makes a single pass and compares each element only with its adjacent element.
What is the worst-case time complexity?
(A) both O(N) and Ω(N)
(B) O(N) but not Ω(N)
(C) Ω(N) but not O(N)
(D) neither O(N) nor Ω(N)
Q.18
Consider the C code:
#include <stdio.h>
int main() {
int a = 6;
int b = 0;
while(a < 10) {
a = a / 12 + 1;
a += b;
}
printf(“%d”, a);
return 0;
}
What is the output?
(A) 9
(B) 10
(C) infinite loop
(D) 6
Q.19
Consider this C code:
#include <stdio.h>
void fX();
int main() {
fX();
return 0;
}
void fX() {
char a;
if ((a = getchar()) != ‘\n’)
fX();
if (a != ‘\n’)
putchar(a);
}
Input: 1234 (followed by Enter)
What is the output?
(A) Program will not terminate
(B) Terminates with no output
(C) Terminates with 4321
(D) Terminates with 1234
Q.20
Specification:
“Instructors teach courses. Students register for courses. Courses are allocated classrooms. Instructors guide students.”
Which ER diagram represents the specification correctly?
(A) (i)
(B) (ii)
(C) (iii)
(D) (iv)
Q.21
In a B+ tree, the requirement of at least half-full (50%) node occupancy is relaxed for which one of the following cases?
(A) Only the root node
(B) All leaf nodes
(C) All internal nodes
(D) Only the leftmost leaf node
Q.22
Which of the following statements about a relation R in first normal form (1NF) is/are TRUE?
(A) R can have a multi-attribute key
(B) R cannot have a foreign key
(C) R cannot have a composite attribute
(D) R cannot have more than one candidate key
Q.23
Let L1 and L2 be regular languages and L3 a language which is not regular.
Which of the following statements is/are always TRUE?
(A) L1 = L2 if and only if L1 ∩ L2̅ = ∅
(B) L1 ∪ L3 is not regular
(C) L3̅ is not regular
(D) L1̅ ∪ L2̅ is regular
Q.24
Which of the following statements about threads is/are TRUE?
(A) Threads can only be implemented in kernel space
(B) Each thread has its own file descriptor table for open files
(C) All the threads belonging to a process share a common stack
(D) Threads belonging to a process are by default not protected from each other
Q.25
Which of the following process state transitions is/are NOT possible?
(A) Running to Ready
(B) Waiting to Running
(C) Ready to Waiting
(D) Running to Terminated
Q.26
Which of the following is/are Bottom-Up Parser(s)?
(A) Shift-reduce Parser
(B) Predictive Parser
(C) LL(1) Parser
(D) LR Parser
Q.27
Let A and B be two events in a probability space with P(A) = 0.3, P(B) = 0.5, and P(A ∩ B) = 0.1. Which of the following statements is/are TRUE?
(A) The two events A and B are independent
(B) P(A ∪ B) = 0.7
(C) P(A ∩ Bᶜ) = 0.2, where Bᶜ is the complement of the event B
(D) P(Aᶜ ∩ Bᶜ) = 0.4, where Aᶜ and Bᶜ are the complements of the events A and B, respectively
Q.28
Consider the circuit shown below where the gates may have propagation delays. Assume that all signal transitions occur instantaneously and that wires have no delays. Which of the following statements about the circuit is/are CORRECT?
(A) With no propagation delays, the output Y is always logic Zero
(B) With no propagation delays, the output Y is always logic One
(C) With propagation delays, the output Y can have a transient logic One after X transitions from logic Zero to logic One
(D) With propagation delays, the output Y can have a transient logic Zero after X transitions from logic One to logic Zero
Q.29
TCP client P successfully establishes a connection to TCP server Q. Let Nₚ denote the sequence number in the SYN sent from P to Q. Let N_Q denote the acknowledgement number in the SYN ACK from Q to P. Which of the following statements is/are CORRECT?
(A) The sequence number Nₚ is chosen randomly by P
(B) The sequence number Nₚ is always 0 for a new connection
(C) The acknowledgement number N_Q is equal to Nₚ
(D) The acknowledgement number N_Q is equal to Nₚ + 1
Q.30
Consider a 5-stage pipelined processor with Instruction Fetch (IF), Instruction Decode (ID), Execute (EX), Memory Access (MEM), and Register Writeback (WB) stages. Which of the following statements about forwarding is/are CORRECT?
(A) In a pipelined execution, forwarding means the result from a source stage of an earlier instruction is passed on to the destination stage of a later instruction
(B) In forwarding, data from the output of the MEM stage can be passed on to the input of the EX stage of the next instruction
(C) Forwarding cannot prevent all pipeline stalls
(D) Forwarding does not require any extra hardware to retrieve the data from the pipeline stages
Q.31
Which of the following fields is/are modified in the IP header of a packet going out of a network address translation (NAT) device from an internal network to an external network?
(A) Source IP
(B) Destination IP
(C) Header Checksum
(D) Total Length
Q.32
Let A and B be non-empty finite sets such that there exist one-to-one and onto functions
(i) from A to B and
(ii) from A × A to A ∪ B.
The number of possible values of |A| is ___________
Q.33
Consider the operator precedence and associativity rules for the *integer* arithmetic operators given in the table below:
\[
\begin{array}{|c|c|c|}
\hline
\text{Operator} & \text{Precedence} & \text{Associativity} \\
\hline
+ & \text{Highest} & \text{Left} \\
– & \text{High} & \text{Right} \\
* & \text{Medium} & \text{Right} \\
/ & \text{Low} & \text{Right} \\
\hline
\end{array}
\]
The value of the expression
\[
3 + 1 + 5 * 2 / 7 + 2 – 4 – 7 – 6 / 2
\] as per the above rules is ________
Q.34
The number of spanning trees in a complete graph of 4 vertices labelled A, B, C, and D is ________
Q.35
Consider the following two relations, \( R(A, B) \) and \( S(A, C) \):
\[
\begin{array}{|c|c|}
\hline
\textbf{R} & \\
A & B \\
\hline
10 & 20 \\
20 & 30 \\
30 & 40 \\
30 & 50 \\
50 & 95 \\
\hline
\end{array}
\quad
\begin{array}{|c|c|}
\hline
\textbf{S} & \\
A & C \\
\hline
10 & 90 \\
30 & 45 \\
40 & 80 \\
\hline
\end{array}
\]
We are asked to evaluate:
\[
\sigma_{B < C} (R \bowtie_{R.A = S.A} S)
\]
Q.36
Consider a network path P—Q—R between nodes P and R via router Q. Node P sends a file of size \(10^6\) bytes to R via this path by splitting the file into chunks of \(10^3\) bytes each. Node P sends these chunks one after the other without any wait time between the successive chunk transmissions. Assume that the size of extra headers added to these chunks is negligible, and that the chunk size is less than the MTU.
Each of the links P—Q and Q—R has a bandwidth of \(10^6\) bits/sec, and negligible propagation latency. Router Q immediately transmits every packet it receives from P to R, with negligible processing and queueing delays. Router Q can simultaneously receive on link P—Q and transmit on link Q—R.
Assume P starts transmitting the chunks at time \(t = 0\).
Which one of the following options gives the time (in seconds, rounded off to 3 decimal places) at which R receives all the chunks of the file?
(A) 8.000
(B) 8.008
(C) 15.992
(D) 16.000
Q.37
Consider the following syntax-directed definition (SDD):
\[
\begin{array}{|c|c|}
\hline
\text{Production Rule} & \text{Semantic Rule} \\
\hline
S \to DHTU & S.val = D.val + H.val + T.val + U.val \\
D \to “M” D_1 & D.val = 5 + D_1.val \\
D \to \epsilon & D.val = -5 \\
H \to “L” H_1 & H.val = 5 \cdot 10 + H_1.val \\
H \to \epsilon & H.val = -10 \\
T \to “C” T_1 & T.val = 5 \cdot 100 + T_1.val \\
T \to \epsilon & T.val = -5 \\
U \to “K” & U.val = 5 \\
\hline
\end{array}
\]
Given the input string: **”MMLK”**
Q.38
Consider the following grammar G, with S as the start symbol. The grammar G has three incomplete productions denoted by (1), (2), and (3).
S → daT | (1)
T → aS | bT | (2)
R → (3) | ε
The set of terminals is {a, b, c, d, f}. The FIRST and FOLLOW sets of the different non-terminals are as follows.
FIRST(S) = {c, d, f}
FIRST(T) = {a, b, ε}
FIRST(R) = {c, ε}`
FOLLOW(S) = FOLLOW(T) = {c, f, $}
FOLLOW(R) = {f}
Which one of the following options CORRECTLY fills in the incomplete productions?
(A) (1) S → Rf (2) T → ε (3) R → cTR
(B) (1) S → fR (2) T → ε (3) R → cTR
(C) (1) S → fR (2) T → cT (3) R → cR
(D) (1) S → Rf (2) T → cT (3) R → cR
Q.39
Consider the following pseudo-code.
L1: t1 = −1
L2: t2 = 0
L3: t3 = 0
L4: t4 = 4 * t3
L5: t5 = 4 * t2
L6: t6 = t5 * M
L7: t7 = t4 + t6
L8: t8 = a[t7] L9: if t8 <= max goto L11
L10: t1 = t8
L11: t3 = t3 + 1
L12: if t3 < M goto L4
L13: t2 = t2 + 1
L14: if t2 < N goto L3
L15: max = t1
Which one of the following options CORRECTLY specifies the number of basic blocks and the number of instructions in the largest basic block, respectively?
(A) 6 and 6
(B) 6 and 7
(C) 7 and 7
(D) 7 and 6
Q.40
Consider the following two threads T1 and T2 that update two shared variables a and b. Assume that initially a = b = 1. Though context switching between threads can happen at any time, each statement of T1 or T2 is executed atomically without interruption.
T1 T2
a = a + 1; b = 2 * b;
b = b + 1; a = 2 * a;
Which one of the following options lists all the possible combinations of values of a and b after both T1 and T2 finish execution?
(A) (a = 4, b = 4); (a = 3, b = 3); (a = 4, b = 3)
(B) (a = 3, b = 4); (a = 4, b = 3); (a = 3, b = 3)
(C) (a = 4, b = 4); (a = 4, b = 3); (a = 3, b = 4)
(D) (a = 2, b = 2); (a = 2, b = 3); (a = 3, b = 4)
Q.41
An array [82, 101, 90, 11, 111, 75, 33, 131, 44, 93] is heapified. Which one of the following options represents the first three elements in the heapified array?
(A) 82, 90, 101
(B) 82, 11, 93
(C) 131, 11, 93
(D) 131, 111, 90
Q.43
Consider a binary min-heap containing 105 distinct elements. Let \(k\) be the index (in the underlying array) of the maximum element stored in the heap. The number of possible values of \(k\) is:
(A) 53
(B) 52
(C) 27
(D) 1
Q.44
The symbol \( \rightarrow \) indicates functional dependency in the context of a relational database. Which of the following options is/are TRUE?
(A) \((X, Y) \rightarrow (Z, W)\) implies \(X \rightarrow (Z, W)\)
(B) \((X, Y) \rightarrow (Z, W)\) implies \((X, Y) \rightarrow Z\)
(C) \(((X, Y) \rightarrow Z \text{ and } W \rightarrow Y)\) implies \((X, W) \rightarrow Z\)
(D) \((X \rightarrow Y \text{ and } Y \rightarrow Z)\) implies \(X \rightarrow Z\)
Q.45
Let \(G\) be a directed graph and \(T\) a depth first search (DFS) spanning tree in \(G\) that is rooted at a vertex \(v\). Suppose \(T\) is also a breadth first search (BFS) tree in \(G\), rooted at \(v\). Which of the following statements is/are TRUE for every such graph \(G\) and tree \(T\)?
(A) There are no back-edges in \(G\) with respect to the tree \(T\)
(B) There are no cross-edges in \(G\) with respect to the tree \(T\)
(C) There are no forward-edges in \(G\) with respect to the tree \(T\)
(D) The only edges in \(G\) are the edges in \(T\)
Q.46
Consider the following read-write schedule \( S \) over three transactions \( T_1, T_2, T_3 \), where the subscripts in the schedule indicate transaction IDs:
\[
S: r_1(z); \ w_1(z); \ r_2(x); \ r_3(y); \ w_3(y); \ r_2(y); \ w_2(x); \ w_2(y);
\]
Which of the following transaction schedules is/are conflict equivalent to \( S \)?
(A) \( T_1 T_2 T_3 \)
(B) \( T_1 T_3 T_2 \)
(C) \( T_3 T_2 T_1 \)
(D) \( T_3 T_1 T_2 \)
Q.47
Consider a Boolean expression given by
\[
F(X, Y, Z) = \Sigma(3, 5, 6, 7)
\]
Which of the following statements is/are CORRECT?
(A) \( F(X, Y, Z) = \Pi(0, 1, 2, 4) \)
(B) \( F(X, Y, Z) = XY + YZ + XZ \)
(C) \( F(X, Y, Z) \) is independent of input \( Y \)
(D) \( F(X, Y, Z) \) is independent of input \( X \)
Q.48
Consider the following C function definition:
\[
\texttt{int f(int x, int y) \{} \\
\quad \texttt{for (int i = 0; i < y; i++) \{} \\
\quad\quad \texttt{x = x + x + y;} \\
\quad \texttt{\}} \\
\texttt{return x;} \\
\texttt{\}}
\]
Which of the following statements is/are TRUE about the above function?
(A) If the inputs are \( x = 20, y = 10 \), then the return value is greater than \( 2^{20} \)
(B) If the inputs are \( x = 20, y = 20 \), then the return value is greater than \( 2^{20} \)
(C) If the inputs are \( x = 20, y = 10 \), then the return value is less than \( 2^{10} \)
(D) If the inputs are \( x = 10, y = 20 \), then the return value is greater than \( 2^{20} \)
Q.49
Let \( A \) be any \( n \times m \) matrix, where \( m > n \). Which of the following statements is/are TRUE about the system of linear equations \( Ax = 0 \)?
(A) There exist at least \( m – n \) linearly independent solutions to this system
(B) There exist \( m – n \) linearly independent vectors such that every solution is a linear combination of these vectors
(C) There exists a non-zero solution in which at least \( m – n \) variables are 0
(D) There exists a solution in which at least \( n \) variables are non-zero
Q.50
Consider the 5-state DFA \( M \) accepting the language \( L(M) \subset (0 + 1)^* \) shown below.
For any string \( w \in (0 + 1)^* \), let \( n_0(w) \) be the number of 0’s in \( w \) and \( n_1(w) \) be the number of 1’s in \( w \).
Which of the following statements is/are FALSE?
(A) States 2 and 4 are distinguishable in \( M \)
(B) States 3 and 4 are distinguishable in \( M \)
(C) States 2 and 5 are distinguishable in \( M \)
(D) Any string \( w \) with \( n_0(w) = n_1(w) \) is in \( L(M) \)
Q.51
The chromatic number of a graph is the minimum number of colours used in a proper colouring of the graph.
Let \( G \) be any graph with \( n \) vertices and chromatic number \( k \).
Which of the following statements is/are always TRUE?
(A) \( G \) contains a complete subgraph with \( k \) vertices
(B) \( G \) contains an independent set of size at least \( \frac{n}{k} \)
(C) \( G \) contains at least \( \frac{k(k-1)}{2} \) edges
(D) \( G \) contains a vertex of degree at least \( k \)
Q.52
Consider the operators \( \diamond \) and \( \text{□} \) defined by:
\[
a \diamond b = a + 2b,\quad a \text{□} b = ab
\] for positive integers.
Which of the following statements is/are TRUE?
(A) Operator \( \diamond \) obeys the associative law
(B) Operator \( \text{□} \) obeys the associative law
(C) Operator \( \diamond \) over the operator \( \text{□} \) obeys the distributive law
(D) Operator \( \text{□} \) over the operator \( \diamond \) obeys the distributive law
Q.53
Consider two set-associative cache memory architectures: WBC, which uses the write-back policy, and WTC, which uses the write-through policy. Both of them use the LRU (Least Recently Used) block replacement policy. The cache memory is connected to the main memory.
Which of the following statements is/are TRUE?
(A) A read miss in WBC never evicts a dirty block
(B) A read miss in WTC never triggers a write-back operation of a cache block to main memory
(C) A write hit in WBC can modify the value of the dirty bit of a cache block
(D) A write miss in WTC always writes the victim cache block to main memory before loading the missed block to the cache
Q.54
Consider a 512 GB hard disk with 32 storage surfaces. There are 4096 sectors per track and each sector holds 1024 bytes of data.
The number of cylinders in the hard disk is _________
Q.55
The baseline execution time of a program on a 2 GHz single-core machine is 100 nanoseconds. 90% of the execution time can be fully parallelized. The overhead for using an additional core is 10 ns.
The number of cores that minimize the execution time is _______
Q.56
A given program has 25% load/store instructions.
Ideal CPI without memory stalls = 2
Instruction cache miss rate = 2%, data cache miss rate = 8%
Miss penalty = 100 cycles
The speedup (rounded off to two decimal places) with perfect cache is _________
Q.57
Consider the following code snippet using the `fork()` and `wait()` system calls.
“`c
int x = 3;
while(x > 0) {
fork();
printf(“hello”);
wait(NULL);
x–;
}
“`
Assume the code runs without errors. The total number of times the `printf` statement is executed is _______
Q.58
Consider the entries shown below in the forwarding table of an IP router:
\[
\begin{array}{|c|c|}
\hline
\textbf{Prefix} & \textbf{Next hop router} \\
\hline
10.1.1.0/24 & R1 \\
10.1.1.128/25 & R2 \\
10.1.1.64/26 & R3 \\
10.1.1.192/26 & R4 \\
\hline
\end{array}
\]
The router forwards 20 packets each to 5 hosts:
10.1.1.16, 10.1.1.72, 10.1.1.132, 10.1.1.191, 10.1.1.205
The number of packets forwarded via R2 is _______
Q.59
Let \( G = (V, \Sigma, S, P) \) be a context-free grammar in Chomsky Normal Form, with
\(\Sigma = \{a, b, c\}\), \(V\) has 10 variables including the start symbol \(S\),
and the string \( w = a^{30}b^{30}c^{30} \) is derivable from \(S\).
The number of steps (rule applications) in the derivation \( S \Rightarrow^{*} w \) is _______
Q.60
The number of edges present in the forest generated by the DFS traversal of an undirected graph \( G \) with 100 vertices is 40.
The number of connected components in \( G \) is _______
Q.61
Consider the following two regular expressions over the alphabet \(\{0,1\}\):
\[
r = 0^* + 1^*, \quad s = 01^* + 10^*
\]
The total number of strings of length less than or equal to 5, which are neither in \( r \) nor in \( s \), is _______
Q.62
Consider a memory management system with 2KB page size.
Pages 0, 1, 2, 3 are stored in frames 1, 3, 2, 0 respectively.
Find the physical address corresponding to virtual address 2500.
Q.63
A bag contains 10 red balls and 15 blue balls.
Two balls are drawn without replacement.
Find the probability that both are red.
Q.64
Consider a digital logic circuit consisting of three 2-to-1 multiplexers M1, M2, and M3 as shown below.
X1 and X2 are inputs of M1. X3 and X4 are inputs of M2.
A, B, and C are select lines of M1, M2, and M3, respectively.
For an instance of inputs:
\( X1 = 1, \quad X2 = 1, \quad X3 = 0, \quad X4 = 0 \),
the number of combinations of \( A, B, C \) that give the output \( Y = 1 \) is _______
Q.65
An IP datagram of size 1420 bytes (including 20-byte IP header) is sent from sender to receiver over two links with a router in between.
– First link MTU = 542 bytes
– Second link MTU = 360 bytes
What is the number of fragments delivered to the receiver? _______
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