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This section includes 1917 Mcqs, each offering curated multiple-choice questions to sharpen your UGC-NET knowledge and support exam preparation. Choose a topic below to get started.
1901. |
An example of a layer that is absent in broadcast networks is: |
A. | Physical layer |
B. | Presentation layer |
C. | Network layer |
D. | Application layer |
Answer» D. Application layer | |
1902. |
The technique of temporarily delaying outgoing acknowledgements so that they can be hooked onto the next outgoing data frame is known as |
A. | Bit stuffing |
B. | Piggy backing |
C. | Pipelining |
D. | Broadcasting |
Answer» C. Pipelining | |
1903. |
Coaxial cables are categorized by Radio Government rating are adapted for specialized functions. Category RG-59 with impedance 75Ω used for |
A. | Cable TV |
B. | Ethernet |
C. | Thin Ethernet |
D. | Thick Ethernet |
Answer» B. Ethernet | |
1904. |
AES is a round cipher based on the Rijndal Algorithm that uses a 128-bit block of data. AES has three different configurations. ______ rounds with a key size of 128 bits, ______ rounds with a key size of 192 bits and ______ rounds with a key size of 256 bits. |
A. | 5, 7, 15 |
B. | 10, 12, 14 |
C. | 5, 6, 7 |
D. | 20, 12, 14 |
Answer» C. 5, 6, 7 | |
1905. |
The GSM network is divided into the following three major systems : |
A. | SS, BSS, OSS |
B. | BSS, BSC, MSC |
C. | CELL, BSC, OSS |
D. | SS, CELL, MSC |
Answer» B. BSS, BSC, MSC | |
1906. |
The design issue of Datalink Layer in OSI Reference Model is |
A. | Framing |
B. | Representation of bits |
C. | Synchronization of bits |
D. | Connection control |
Answer» B. Representation of bits | |
1907. |
Data Encryption Techniques are particularly used for _______. |
A. | protecting data in Data Communication System |
B. | reduce Storage Space Requirement |
C. | enhances Data Integrity |
D. | decreases Data Integrity |
Answer» B. reduce Storage Space Requirement | |
1908. |
In propositional logic P ⇔ Q is equivalent to (Where ~ denotes NOT): |
A. | ~ (P ˅ Q) ˄ ~ (Q ˅ P) |
B. | (~ P ˅ Q) ˄ (~ Q ˅ P) |
C. | (P ˅ Q) ˄ (Q ˅ P) |
D. | ~ (P ˅ Q) → ~ (Q ˅ P) |
Answer» C. (P ˅ Q) ˄ (Q ˅ P) | |
1909. |
Back propagation is a learning technique that adjusts weights in the neural network by propagating weight changes. |
A. | Forward from source to sink |
B. | Backward from sink to source |
C. | Forward from source to hidden nodes |
D. | Backward from sink to hidden nodes |
Answer» C. Forward from source to hidden nodes | |
1910. |
Which of the following neural networks uses supervised learning?(A) Multilayer perceptron(B) Self organizing feature map(C) Hopfield network |
A. | (A) only |
B. | (B) only |
C. | (A) and (B) only |
D. | (A) and (C) only |
Answer» B. (B) only | |
1911. |
Match the following knowledge representation techniques with their applications:List – I List – II(a) Frames (i) Pictorial representation of objects, their attributes and relationships(b) Conceptual dependencies (ii) To describe real world stereotype events(c) Associative networks (iii) Record like structures for grouping closely related knowledge(d) Scripts (iv) Structures and primitives to represent sentencescode:a b c d |
A. | (iii) (iv) (i) (ii) |
B. | (iii) (iv) (ii) (i) |
C. | (iv) (iii) (i) (ii) |
D. | (iv) (iii) (ii) (i) |
Answer» B. (iii) (iv) (ii) (i) | |
1912. |
A neuron with 3 inputs has the weight vector [0.2 -0.1 0.1]^T and a bias θ = 0. If the input vector is X = [0.2 0.4 0.2]^T then the total input to the neuron is: |
A. | 0.20 |
B. | 1.0 |
C. | 0.02 |
D. | -1.0 |
Answer» D. -1.0 | |
1913. |
An artificial neuron receives n inputs x1, x2, x3............xn with weights w1, w2, ..........wn attached to the input links. The weighted sum_________________ is computed to be passed on to a non-linear filter Φ called activation function to release the output. |
A. | Σ wi |
B. | Σ xi |
C. | Σ wi + Σ xi |
D. | Σ wi* xi |
Answer» E. | |
1914. |
Consider the following statements :(a) Assignment problem can be used to minimize the cost.(b) Assignment problem is a special case of transportation problem.(c) Assignment problem requires that only one activity be assigned to each resource.Which of the following options is correct? |
A. | (a) and (b) only |
B. | (a) and (c) only |
C. | (b) and (c) only |
D. | (a), (b) and (c) |
Answer» E. | |
1915. |
Consider the following statements:(a) If primal (dual) problem has a finite optimal solution, then its dual (primal) problem has a finite optimal solution.(b) If primal (dual) problem has an unbounded optimum solution, then its dual (primal) has no feasible solution at all.(c) Both primal and dual problems may be infeasible.Which of the following is correct? |
A. | (a) and (b) only |
B. | (a) and (c) only |
C. | (b) and (c) only |
D. | (a), (b) and (c) |
Answer» E. | |
1916. |
Slots and facets are used in |
A. | Semantic Networks |
B. | Frames |
C. | Rules |
D. | All of these |
Answer» C. Rules | |
1917. |
Identify the following activation function :φ(V) = Z + (1/ 1 + exp (– x * V + Y) ),Z, X, Y are parameters |
A. | Step function |
B. | Ramp function |
C. | Sigmoid function |
D. | Gaussian function |
Answer» D. Gaussian function | |