Allied Digital Services System Administrator Interview Questions, Process, and Tips

DNS stands for Domain Name System, which translates domain names to IP addresses.

• DNS is like a phone book for the internet, translating human-readable domain names (like google.com) to IP addresses (like 172.217.3.206).

• It helps users access websites by typing in easy-to-remember domain names instead of complex IP addresses.

• DNS servers store records of domain names and their corresponding IP addresses, allowing for effi...read more

DHCP assigns IP addresses to devices on a network automatically

• DHCP server receives a request from a device for an IP address

• DHCP server assigns an available IP address to the device

• DHCP server also provides other network configuration information like subnet mask and default gateway

• DHCP lease time determines how long the IP address is valid for

• DHCP uses a client-server model

To troubleshoot browser slowness, check for network issues, clear cache and cookies, disable extensions, update browser, and check for malware.

• Check for network issues such as slow internet connection

• Clear browser cache and cookies to improve performance

• Disable unnecessary browser extensions that may be causing slowness

• Update the browser to the latest version for better performance

• Scan for malware or viruses that could

Current CTC is $70,000 and expected CTC is $80,000

• Current CTC: $70,000

• Expected CTC: $80,000

AD is Active Directory, a directory service developed by Microsoft. ISO layers refer to the OSI model, and TCP/IP is a protocol suite.

• Active Directory is a directory service used to manage resources in a network.

• ISO layers refer to the Open Systems Interconnection model, which is a conceptual model used to describe network communication.

• TCP/IP is a protocol suite used for communication between devices on a network.

• TCP/...read more

Increasing swap space involves creating a new swap file or resizing an existing swap partition.

• Create a new swap file using the 'dd' command

• Format the new swap file using 'mkswap'

• Enable the new swap file using 'swapon'

• Update the /etc/fstab file to automatically mount the new swap file on boot

• Resize an existing swap partition using tools like 'resize2fs' or 'gparted'

Oops concepts refer to Object-Oriented Programming concepts which include inheritance, polymorphism, encapsulation, and abstraction.

• Inheritance: Allows a class to inherit properties and behavior from another class.

• Polymorphism: Allows objects to be treated as instances of their parent class.

• Encapsulation: Bundling data and methods that operate on the data into a single unit.

• Abstraction: Hides the complex implementation...read more

Interprocess communication is the mechanism by which processes in a computer system share data and information.

• IPC allows processes to communicate and synchronize with each other

• Common methods include pipes, sockets, shared memory, and message queues

• IPC can be synchronous or asynchronous

• Examples include client-server communication, file sharing, and remote procedure calls

Yes, I have experience working with Production Environments.

• Managed and maintained production servers to ensure uptime and performance

• Deployed software updates and patches in production environments

• Troubleshooted and resolved issues in live production systems

Automating SDLC involves using tools and scripts to streamline and optimize the software development process.

• Use continuous integration and continuous deployment (CI/CD) tools to automate build, test, and deployment processes.

• Implement configuration management tools to automate infrastructure provisioning and management.

• Utilize automation scripts for repetitive tasks such as code reviews, testing, and deployment.

• Integr...read more