Madanswer Technologies Interview Questions Data|Agile|DevOPs|Python - Recent questions in Computational Fluid Dynamics

A company is planning to deploy a web server and database server, as shown in the architecture diagram below.

Sun, 05 Mar 2023 01:18:00 +0000

A company is planning to deploy a web server and database server, as shown in the architecture diagram below. You have to ensure that traffic restrictions are in place so that the database server can only communicate with the web server.

Microsoft Azure InfrastructureWhich of the following would you recommend for implementing these restrictions?

A. Network Security Groups (NSGs)

B. Azure Service Bus

C. A Local Network Gateway

D. A Virtual Private Gateway

Which of the following organizations is primarily concerned with military encryption systems?

Sun, 05 Mar 2023 01:14:47 +0000

Which of the following organizations is primarily concerned with military encryption systems?

a) NIST

b) NSA

c) ITU

d) IEEE

ESP does not provide ________.

Sun, 05 Mar 2023 01:14:06 +0000

ESP does not provide ________.

a) data integrity

b) source authentication

c) error control

d) privacy

In computer security _______ means that computer system assets can be modified only by authorized parities.

Sun, 05 Mar 2023 01:13:39 +0000

In computer security _______ means that computer system assets can be modified only by authorized parities.

a) integrity

b) confidentiality

c) authenticity

d) availability

IPsec defines two protocols: _ and __.

Sun, 05 Mar 2023 01:13:06 +0000

IPsec defines two protocols: _______ and ________.

a) PGP; ESP

b) AH; SSL

a) PGP; SSL

b) AH; ESP

IP Security operates in which layer of the OSI model?

Sun, 05 Mar 2023 01:12:32 +0000

IP Security operates in which layer of the OSI model?

a) Transport

b) Network

c) Physical

d) Application

Which two types of IPsec can be used to secure communications between two LANs?

Sun, 05 Mar 2023 01:12:02 +0000

Which two types of IPsec can be used to secure communications between two LANs?

a) ESP tunnel mode

b) AH tunnel mode

c) ESP transport mode

d) Both AH tunnel mode and ESP tunnel mode

______ provides authentication at the IP level.

Sun, 05 Mar 2023 01:11:15 +0000

______ provides authentication at the IP level.

a) ESP

b) AH

c) SSL

d) PGP

Which mode of IPsec should you use to assure the security and confidentiality of data within the same LAN?

Sun, 05 Mar 2023 01:10:40 +0000

Which mode of IPsec should you use to assure the security and confidentiality of data within the same LAN?

a) ESP transport mode

b) AH transport mode

c) AH tunnel mode

d) ESP tunnel mode

Which two types of encryption protocols can be used to secure the authentication of computers using IPsec?

Sun, 05 Mar 2023 01:10:00 +0000

Which two types of encryption protocols can be used to secure the authentication of computers using IPsec?

a) SHA

b) Kerberos V5

c) Both SHA and MD5

d) MD5

For unsteady turbulent flows, which of these averaging method is used?

Sun, 03 Oct 2021 11:34:05 +0000

For unsteady turbulent flows, which of these averaging method is used?

(a) Time averaging

(b) Ensemble averaging

(c) Spatial averaging

(d) Volume averaging

I got this question during an online interview.

This key question is from Turbulence Modelling topic in chapter Turbulence Modelling of Computational Fluid Dynamics

Which of these is related to convergence?

Sun, 03 Oct 2021 11:33:21 +0000

Which of these is related to convergence?

(a) Stopping criteria

(b) Peclet number

(c) Lax Equivalence Theorem

(d) Scarborough criteria

This question was addressed to me in a job interview.

I want to ask this question from Discretization Aspects topic in portion Basic Aspects of Discretization, Grid Generation with Appropriate Transformation of Computational Fluid Dynamics

Consider a model of finite control volume (volume V and surface area S) fixed in space with elemental volume dV,

Sun, 03 Oct 2021 11:30:03 +0000

Consider a model of finite control volume (volume V and surface area S) fixed in space with elemental volume dV, vector elemental surface area dS⃗ , density ρ and flow velocity V⃗ . What is the net mass flow rate out of the surface area?

(a) ∬VρV⃗ .dV

(b) ρV⃗ .dS⃗

(c) ∭VρV⃗ .dS⃗

(d) ∬VρV⃗ .dS⃗

I got this question in examination.

This question is from Continuity Equation topic in section Governing Equations of Fluid Dynamics of Computational Fluid Dynamics

The face-centred stencil is second-order _________

Sun, 03 Oct 2021 11:29:16 +0000

The face-centred stencil is second-order _________

(a) always

(b) only when the centroid of the face and the line connecting the two cells meet

(c) only when the centroid of the face and the line connecting the two cells do not meet

(d) never

This question was posed to me in an online interview.

My question is based upon Diffusion Problem in chapter Diffusion Problem of Computational Fluid Dynamics

What is the advantage of the hybrid differencing scheme compared to the QUICK scheme?

Sun, 03 Oct 2021 11:28:40 +0000

What is the advantage of the hybrid differencing scheme compared to the QUICK scheme?

(a) Transportiveness

(b) Accuracy

(c) Stability

(d) Conservativeness

I have been asked this question in final exam.

The doubt is from Convection-Diffusion Problems in section Convection-Diffusion Problems of Computational Fluid Dynamics

If the normalized difference between the cell face values is high, the convergence rate ___________

Sun, 03 Oct 2021 11:27:19 +0000

If the normalized difference between the cell face values is high, the convergence rate ___________

(a) tends to infinity

(b) is undisturbed

(c) is low

(d) is high

This question was posed to me during an interview.

This is a very interesting question from Deferred Correction for High-Resolution Schemes topic in section High Resolution Schemes of Computational Fluid Dynamics

Which of these is not a turbulent viscosity model?

Sun, 03 Oct 2021 11:26:46 +0000

Which of these is not a turbulent viscosity model?

(a) k-ω

(b) k-ε

(c) DNS

(d) SST

This question was addressed to me during an interview.

The query is from Turbulent Viscosity topic in portion Turbulence Modelling of Computational Fluid Dynamics

The process which is responsible for spreading of turbulent flows in the flow direction is __________

Sun, 03 Oct 2021 11:26:12 +0000

The process which is responsible for spreading of turbulent flows in the flow direction is __________

(a) Pluming

(b) Entrainment

(c) Turbulent mixing

(d) Turbulent generation

This question was addressed to me in a job interview.

My question is taken from Free and Wall Turbulence in chapter Turbulence Modelling of Computational Fluid Dynamics

The blending function used in the Shear Stress Transport model is a function of _____________

Sun, 03 Oct 2021 11:25:35 +0000

The blending function used in the Shear Stress Transport model is a function of _____________

(a) Turbulent kinematic viscosity, the ratio of turbulence and distance from the wall

(b) Turbulence Reynolds number, turbulent kinematic viscosity and distance from the wall

(c) Turbulence Reynolds number, the ratio of turbulence and turbulent kinematic viscosity

(d) Turbulence Reynolds number, the ratio of turbulence and distance from the wall

The question was posed to me in an internship interview.

This intriguing question originated from Turbulence Modelling in portion Turbulence Modelling of Computational Fluid Dynamics