CALLISTO INFOSOLUTIONS Desktop Support Engineer Interview Questions and Answers

Q1. Software related
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Company new software installation and new apps Activity in admin login and billing test check
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Q2. OS and Inventory related
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New system company OS Installation and PC Ghosting and SCCM Done and antivirus software installation
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Q1. Network related
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Switch and Access Point Congratulations and System assigned IP Address admin login
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Q2. Hardware related
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Daily group discussion

Q1. Discuss with company format
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Q2. Discuss with salary related
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Q1. Tell me about yourself.
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I am a dedicated and experienced Desktop Support Engineer with a strong background in troubleshooting and resolving technical issues.
• Over 5 years of experience in providing desktop support to end users

• Proficient in diagnosing and resolving hardware and software issues

• Skilled in setting up and configuring desktops, laptops, and peripherals

• Excellent customer service and communication skills

• Certified in CompTIA A+ and Mic...read more
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Q2. What is your salary expectation?
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Q1. What is dora process.
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The DORA process stands for Discover, Offer, Request, and Acknowledge. It is a method used in DHCP to assign IP addresses to devices.
• Discover: Device sends a broadcast message to discover DHCP servers on the network

• Offer: DHCP server responds with an IP address offer to the device

• Request: Device requests the offered IP address from the DHCP server

• Acknowledge: DHCP server acknowledges the request and assigns the IP addr
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Q2. What is incident and service request?
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An incident is an unplanned interruption to an IT service or reduction in the quality of an IT service. A service request is a formal request from a user for something to be provided.
• An incident is a disruption to normal operation that requires immediate attention to restore service.

• A service request is a formal request from a user for information, advice, a standard change, or access to a service.

• Examples: Incident -
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Q3. Which outlook file is responsible for taking backup?
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The outlook file responsible for taking backup is the PST file.
• PST file stores emails, contacts, calendar events, and other data in Outlook.

• Users can manually backup their PST file by exporting it from Outlook.

• Third-party backup software can also be used to automatically backup the PST file.
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Q4. What is port number of SMTP/POP/IMAP?
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SMTP - 25, POP - 110, IMAP - 143
• SMTP uses port 25 for sending emails

• POP uses port 110 for receiving emails

• IMAP uses port 143 for accessing emails
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There was a aptitude test for 1 hr.

Q1. Doora process, DSCP Process
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Q2. IPV4, NETWORK, ITIL , BLACK SCREEN OF DEATH
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Q1. What is OS What is pst and ost What is outlook What is group policy What is AD What is users Whai is OU
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OS stands for Operating System, which is the software that manages computer hardware and software resources.
• OS is the foundation of a computer system, providing a user-friendly interface and managing tasks and resources.

• Examples of popular operating systems include Windows, macOS, and Linux.
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Q1. Self introduction
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Q1. Troubleshooting steps for APIPA
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APIPA stands for Automatic Private IP Addressing. It is a feature in Windows that allows a computer to automatically assign itself an IP address when a DHCP server is not available.
• Check if the computer has an IP address in the range of 169.254.0.1 to 169.254.255.254

• Verify if the computer is unable to obtain an IP address from a DHCP server

• Ensure that the network cable is properly connected and the DHCP server is funct...read more
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Q1. What is router What is switch Osi model Vlan Basic discussion Osi model
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Q2. What is Trunk What is ospf What is BGP
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Trunk is a network port that carries multiple VLANs. OSPF and BGP are routing protocols used in networking.
• Trunk is used to connect switches and carry multiple VLANs over a single link.

• OSPF (Open Shortest Path First) is a link-state routing protocol used to determine the shortest path for data packets in a network.

• BGP (Border Gateway Protocol) is an exterior gateway protocol used to exchange routing information between...read more
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Q3. What is router how it works how to configure
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A router is a networking device that forwards data packets between computer networks.
• Routers operate at the network layer of the OSI model.

• They use routing tables to determine the best path for data to travel.

• Routers can be configured using a web interface or command line interface.

• Examples of routers include Cisco, Netgear, and TP-Link.

• Configuration involves setting up IP addresses, subnet masks, and default gateways.
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