HCLTech Desktop Support Engineer L1 Interview Questions and Answers

An IP address is a unique identifier assigned to devices on a network. There are two types of IP addresses: IPv4 and IPv6.

• IP address stands for Internet Protocol address

• It is a numerical label assigned to each device connected to a network

• IPv4 addresses are 32-bit and represented in dotted decimal notation (e.g. 192.168.0.1)

• IPv6 addresses are 128-bit and represented in hexadecimal notation (e.g. 2001:0db8:85a3:0000:000

Ping command is a network utility used to test the reachability of a host on an Internet Protocol (IP) network.

• Ping sends an ICMP echo request to the target host and waits for a response.

• It measures the round-trip time for messages sent from the originating host to a destination computer.

• It can also be used to determine the number of hops between two hosts.

• Ping is commonly used to troubleshoot network connectivity issu

Antivirus is a software program designed to prevent, detect, and remove malicious software from a computer system.

• Antivirus software scans files and directories for any malware or suspicious patterns.

• It uses various techniques like signature-based detection, behavioral analysis, and heuristics to identify and remove viruses.

• Some popular antivirus software in the market are Norton, McAfee, Kaspersky, Avast, and AVG.

POP and IMAP are email protocols used for retrieving emails from a mail server.

• POP downloads emails from the server to the local device and deletes them from the server.

• IMAP syncs emails between the server and the local device, allowing access to emails from multiple devices.

• POP is a one-way communication protocol while IMAP is a two-way communication protocol.

• POP is less secure than IMAP as it doesn't support encrypti...read more

Sharing the troubleshooting steps for resolving Outlook issues

• Document the issue and steps taken to troubleshoot

• Share the troubleshooting steps with the team or supervisor

• Collaborate with other team members to resolve the issue

• Provide feedback on the effectiveness of the troubleshooting steps

• Continuously update the troubleshooting steps for future reference

Network refers to a group of interconnected devices, while networking refers to the process of connecting these devices.

• Network is a noun, while networking is a verb.

• Network refers to the physical or logical connections between devices, while networking refers to the process of establishing and maintaining those connections.

• Examples of network devices include routers, switches, and servers, while examples of networking...read more

Switching and routing are two fundamental concepts in computer networking.

• Switching is the process of forwarding data packets between devices on the same network.

• Routing is the process of forwarding data packets between different networks.

• Switches operate at the data link layer of the OSI model, while routers operate at the network layer.

• Switches use MAC addresses to forward packets, while routers use IP addresses.

• Exam...read more

Explanation of DHCP, DNS, OSI model, and difference between OST and PST in Outlook.

• DHCP (Dynamic Host Configuration Protocol) assigns IP addresses to devices on a network.

• DNS (Domain Name System) translates domain names into IP addresses.

• OSI (Open Systems Interconnection) model is a conceptual framework for network communication.

• OST (Offline Storage Table) is a file format used by Outlook to store offline copies of ema...read more