Engineering Knowledge Test - Computer Science

Engineering Knowledge Test (EKT) - Computer Science

• Instructions: The test has 50 questions, each worth 3 marks, and one mark is deducted for incorrect answers. No marks are deducted for unattempted questions.

Question 1

• Network Address Translation (NAT): A flavor of NAT is used to allow many users to connect to the global internet using a single IP address.

Question 2

• Structured Programming Languages: Pascal is more suited to structured programming than the other options.

Question 3

• Number Sequence: The next number in the series 1, 3, 11, 19, 37, ... is 55.

Question 4

• Access Control Lists (ACLs): Standard ACLs and Extended ACLs are the two main types.

Question 5

• Probability of Dice Roll: The probability that the minimum value is not less than 2 and the maximum value is not greater than 5 when an unbiased die is rolled four times is 65/81.

Question 6

• Stub Network: A stub network has only one entry point and no exit point.

Question 7

• Vector Projection: The projection of a vector on another vector is a scalar.

Question 8

• IPv6 Address Length: An IPv6 address is 128 bits long.

Question 9

• Probability of House Choice: The probability that all three persons choose the same house out of three available houses is 1/9.

Question 10

• Ones Complement: The 1's complement of 10 is 110.

Question 11

• ASCII Meaning: ASCII stands for American Standard Code for Information Interchange.

Question 12

• Single Packet: A single packet on a data link is called a frame.

Question 13

• Sine and Cosine: The value of sin θ + cos θ is greatest when θ = 45°.

Question 14

• Machine Instruction Time: The time required to fetch and execute one simple machine instruction is a CPU cycle.

Question 15

• Valid Host IDs: Valid host IDs for a router with IP address 172.16.2.1/23 include 172.16.1.100 and 172.16.1.198, but not 172.16.2.255 or 172.16.3.0.

Question 16

• Logic Function: Inverting the input of an AND gate results in a NAND gate.

Question 17

• Data Conversion Program: A program that converts data into a different code system is called an encoder.

Question 18

• Logical Database Structures: The chain structure is not considered a logical database structure.

Question 19

• Non-Volatile Memory: ROM (Read-Only Memory) and NVRAM (Non-Volatile RAM) are examples of computer memories that do not forget.

Question 20

• CPU Components: The control unit and the arithmetic logic unit (ALU) are the two main components of the CPU.

Question 21

• NOT Gate Output: The output of a NOT gate given an input of 10100 is 01011 (invert).

Question 22

• LAN Transmission Device: A router is a device that allows frames from one LAN to be transmitted to another.

Question 23

• TCP Services: SMTP, HTTP, and FTP services employ TCP.

Question 24

• Decimal to Binary: The binary equivalent of decimal 6110 is 110011102

Question 25

• Transmission Speeds: Fibre optic cable has the fastest transmission speeds, followed by coaxial cable, and then twisted pair wires.

Question 26

• Data Transfer Medium: A communication channel or bus is used for transferring data between two locations.

Question 27

• CPU Function: A CPU reads, interprets, and processes data and instructions.

Question 28

• Concurrent Program Execution: Multitasking enables a computer to execute multiple programs seemingly simultaneously by switching between them.

Question 29

• Computer Program Composition: A computer program is composed of discrete logical steps.

Question 30

• Data Transmission Device: A multiplexer allows data from multiple sources to be sent over a single transmission line.

Question 31

• Nuclear Particles: Mesons are assumed to hold nucleons together.

Question 32

• Refreshable Memory: Dynamic RAM (DRAM) requires refreshing many times per second.

Question 33

• Instruction Register: The instruction register holds the instruction to be executed.

Question 34

• Voltage and Current Relationship: A closed circuit allows voltage to influence current.

Question 35

• Hard Disk Sectors: A hard disk is divided into sectors.

Question 36

• Resistor Values: If doubling the voltage across a resistor doubles the current, it implies that the resistor value does not change.

Question 37

• Dimensionally Unequal Quantities: Pressure and modulus of elasticity have similar dimensions, while a Planck constant and angular momentum do not.

Question 38

• Distance between Persons: The maximum distance between two persons is 3 km, and the minimum distance is 0.2 km, if the speed of sound is 300 m/s.

Question 39

• Adder Types: Half-adders are the simplest type of adder.

Question 40

• Internal Computer Components: The motherboard holds the CPU, ROM, RAM, and expansion cards.

Question 41

• Electronegativity: Fluorine is the most electronegative element in the given options.

Question 42

• Radioactive Emissions: Radioactive substances emit electromagnetic radiations, electrons, alpha particles, and neutrons.

Question 43

• Abundant Rare Gas: Argon (Ar) is the most abundant rare gas in the atmosphere.

Question 44

• Temperature-Sensitive Component: A thermistor is a temperature-sensitive resistive component.

Question 45

• Frequency Attenuation: High frequencies are attenuated by inductance or shunt capacitance.

Question 46

• Steel Alloying Elements: Nickel is an alloying element of steel that does not sacrifice ductility as much as the others.

Question 47

• Resistance Change Effect: Increasing the resistance in a circuit with constant voltage will reduce the current.

Question 48

• Antenna Directivity: Increase in antenna size or number of feed horns will have an effect on antenna directivity.

Question 49

• Satellite Transponder: A transponder receives a signal, amplifies it, and retransmits it.

Question 50

• Friction Factor Dependence: The friction factor for fluid flow in pipes is independent of the mass flow rate.