Windy Street Consultants Interview Questions and Answers

Tools for identifying and solving problems as a System Administrator

• Monitoring tools like Nagios, Zabbix, and PRTG

• Log analysis tools like Splunk, ELK Stack, and Graylog

• Network analysis tools like Wireshark and tcpdump

• Remote access tools like SSH and RDP

• Scripting languages like Python and Bash

• Virtualization tools like VMware and VirtualBox

• Backup and recovery tools like Veeam and Backup Exec

Stack is a data structure used to store and retrieve data in a last-in-first-out (LIFO) manner. ROM cannot be used as stack.

• Stack is a collection of elements with two main operations: push (add element) and pop (remove element).

• Stack follows the LIFO principle, meaning the last element added is the first one to be removed.

• Stack can be implemented using arrays or linked lists.

• ROM (Read-Only Memory) cannot be used as stack because it is a non-volatile memory used for permanent ...read more

RJ45 and RJ11 connectors are types of connectors used in networking and telecommunications.

• RJ45 connectors are used for Ethernet connections and have 8 pins.

• RJ11 connectors are used for telephone connections and have 6 pins.

• RJ45 connectors are larger in size compared to RJ11 connectors.

• RJ45 connectors are commonly used in home and office networks.

• RJ11 connectors are commonly used for landline telephones and DSL connections.

Some of the latest computer processors include Intel Core i9, AMD Ryzen 9, and Apple M1.

• Intel Core i9

• AMD Ryzen 9

• Apple M1

DHCP stands for Dynamic Host Configuration Protocol. It is a network protocol that automatically assigns IP addresses to devices.

• DHCP is used to simplify network administration by automatically assigning IP addresses to devices.

• It allows devices to join a network without manual configuration.

• DHCP servers can also assign other network information such as subnet mask, default gateway, and DNS server addresses.

• DHCP leases are temporary and must be renewed periodically.

• DHCP can b...read more

POP3 (Post Office Protocol version 3) is a protocol used to retrieve emails from a mail server.

• POP3 is used to download emails from a mail server to a local email client.

• It works by connecting to the server and downloading any new messages to the client's inbox.

• POP3 typically uses port 110 for unencrypted connections and port 995 for encrypted connections.

• Once emails are downloaded via POP3, they are usually removed from the server unless configured otherwise.

• POP3 is one of t...read more

IMAP stands for Internet Message Access Protocol, used for retrieving emails from a mail server.

• IMAP allows users to access their emails from multiple devices

• It keeps emails stored on the server, allowing for easy access and synchronization

• IMAP is commonly used by email clients like Outlook, Thunderbird, and Apple Mail

SMTP (Simple Mail Transfer Protocol) is a communication protocol used for sending and receiving email.

• SMTP is used to send emails between servers.

• It works in conjunction with POP3 or IMAP protocols for email retrieval.

• SMTP uses port 25 for communication.

• Example: When you send an email from your email client, SMTP is used to send the email to the recipient's email server.