Interview Questions.

Question 1. What Is The Function Of Simics?

Answer :

Simics is used as an emulator that executes binary files. It is used to start the binaries of the hardware at high speed that aren't being modified and offer high overall performance. It emulates the host environment to run the guest working machine. It is a virtualization platform that simulates to increase software program for embedded hardwares.

Question 2. What Is The Difference Between Emulation And Virtualization?

Answer :

Emulation is a manner of changing the goal processor into software, whereas virtualization converts the physical processor into a couple of modules that runs the processor. 
Emulation is a slow manner, while virtualization is quicker than emulation.
Emulation may be labored round any processor, whereas virtualization calls for the proper processor to be virtualized.
System Administration Interview Questions
Question 3. How To Load Simics Inside An Operating System?

Answer :

The command this is used to run SIMICS is the load-unix command and the calling command will be like this

sh>simics

SimICS> load-unix "/bin/ls" "/bin/ls"

SimICS> run /bin/ls

SimICS> ptime

Number of cycles carried out (CPU 0): 606012

SimICS> quit

load-unix allow the terminal to study an executable report into SIMICS after which full path of the bin directory allow to drag the executable documents.

Question 4. How To Run Interactive Program Using Simics?

Answer :

SIMICS can be used to run interactive software thru the command line interface. The software need to be exceeded with a parameter “-tty”, it's far a flag and with the aid of doing this any software this is being completed receives its own window in which it is going to be going for walks. The input that is being entered may be exceeded to this system for in addition processing.

The command is as follows:

sh>simics

SimICS> load-unix -tty "/bin/telnet" "www.Google.Com 80"

SimICS> load-unix "idle"

SimICS> c

This program loads this system and executes it by using using the telnet it genuinely used for record transfer and for communicating with other servers.

Software Engineering Tutorial
Question five. Why “simics-backend" Is Used In Simics?

Answer :

Simics-backend is a binary that is used to create a symbolic link from the the front stop in an effort to be interacting with the consumer. Simics-backend is a strong command that lets in consumer to debug and profile the simics. This cope with the backend calls this is being made with the aid of the simic while a person enters any enter that needs to be displayed at the screen.

Computer Hardware Interview Questions
Question 6. How Does Simics Handle System Calls?

Answer :

Simics handle the system calls internally and would not let the consumer understand about the internal functionalities of it. It represents the System V model that consists of fashion statistics structures like web page tables, inode, processes, and so on. By doing so will make the simics to handle the machine calls like fork (), exec (), open (), and so forth. As simic is used to emulate the running device so it is not endorsed to touch the binaries and the libraries that are gift with the simics.

Question 7. What Is The Command That Will Tell How The System Calls Handled?

Answer :

Simics handle the machine calls internally and would not show any error if it running successfully. But if there's any mistakes occurs during some system call then it will print an error to reveal it. There is a possibility that when showing the error it can now not resume the going for walks of this system. The command that may be used to understand approximately the simics device call is “unix-supported-syscalls”. Run the command in trace mode by means of the use of the “-tr” parameter.

Software Engineering Interview Questions
Question 8. What Is The Use Of Instructions And Cycles In Simics?

Answer :

Simics see the execution of binaries as a regular execution of instructions. Each training in flip takes a few cycles ot whole till it does not give some execution or an interrupt does not occur. Memory instructions are the commands that take long time to finish. If a advantageous cost is go back through the processor then the education gets correctly achieved. So, the cycle just introduces approximately the commands that is going to be accomplished at a time.

Question nine. What Are Advantages Of Connecting Simics With Real Network?

Answer :

There are masses of benefits of connecting simics with actual community. These blessings are as follows:

Ease to download record from the server the use of FTP, TFTP or some other protocol
Accessing of other gadget remotely from anywhere using telnet or take a look at software program.
Ease to percentage data between exclusive structures at a unmarried time
Let customers to remain organized and permit the assets to be shared.
Hardware and Networking Interview Questions
Question 10. How To Access Host Ethernet Interface In Simics?

Answer :

Simics require low degree get admission to to the networking to share is sources between the host and guest machine. It calls for port forwarding for use to switch the packets. It provides a simulation of the host Ethernet’s interface to send and receive the statistics packets. As, working machine doesn't permit the usage of simulator for Ethernet interfaces, community needs to be manually configured to be used.

There are  approaches it could be configured.

Use of openif that allows the get right of entry to to the simulated host Ethernet’s interface.
Use of TAP or digital Ethernet this allows permissions to be set for each consumer for the getting access to and moving of the documents.