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Infinite Computer Solutions Network Support Engineer Interview Questions, Process, and Tips

Updated 30 Jan 2024

Infinite Computer Solutions Network Support Engineer Interview Experiences

1 interview found

Interview experience
4
Good
Difficulty level
Moderate
Process Duration
Less than 2 weeks
Result
Selected Selected

I applied via Naukri.com and was interviewed in Dec 2023. There was 1 interview round.

Round 1 - Technical 

(14 Questions)

  • Q1. What is STP full form ?
  • Ans. 

    STP stands for Spanning Tree Protocol.

    • STP is a network protocol used to prevent loops in Ethernet networks.

    • It works by creating a loop-free logical topology by blocking redundant paths.

    • STP elects a root bridge and calculates the shortest path to it for each network segment.

    • It uses Bridge Protocol Data Units (BPDU) to exchange information between switches.

    • STP is defined by the IEEE 802.1D standard.

  • Answered by AI
  • Q2. What is the main function of the Root bridge switch ?
  • Ans. 

    The main function of the Root bridge switch is to control the flow of data traffic in a spanning tree network.

    • The Root bridge switch is elected as the central point of the spanning tree network.

    • It determines the shortest path for data traffic to reach all other switches in the network.

    • The Root bridge switch sends Bridge Protocol Data Units (BPDUs) to other switches to exchange information and maintain the spanning tree...

  • Answered by AI
  • Q3. In which layer the Ip address is working on if it working on L3 so how can we assisgn an Ip address on Layer 2 Switch descibe in the details ?
  • Ans. 

    The IP address works at Layer 3 of the OSI model. Assigning an IP address on a Layer 2 switch is not possible.

    • IP addresses are used for network layer communication (Layer 3)

    • Layer 2 switches operate at the data link layer (Layer 2)

    • Layer 2 switches use MAC addresses for communication within a local network

    • IP addresses are assigned to devices connected to Layer 2 switches, not to the switch itself

  • Answered by AI
  • Q4. What is the port number of dns and how it's work?
  • Ans. 

    DNS uses port number 53. It works by translating domain names into IP addresses and vice versa.

    • DNS stands for Domain Name System.

    • Port number 53 is used for both TCP and UDP protocols.

    • DNS works by resolving domain names to their corresponding IP addresses.

    • It uses a hierarchical distributed database system.

    • DNS queries and responses are sent over port 53.

    • DNS operates through a client-server model.

    • Example: When you type a ...

  • Answered by AI
  • Q5. What is the dhcp dora process?
  • Ans. 

    DHCP DORA process is the sequence of steps followed by a client to obtain an IP address from a DHCP server.

    • DORA stands for Discover, Offer, Request, and Acknowledge.

    • Discover: Client broadcasts a DHCP Discover message to find available DHCP servers.

    • Offer: DHCP servers respond with DHCP Offer messages containing IP address lease information.

    • Request: Client selects one DHCP Offer and sends a DHCP Request message to reques...

  • Answered by AI
  • Q6. What is the 2G and 3G and 5G service ?
  • Ans. 

    2G, 3G, and 5G are different generations of mobile network technology.

    • 2G refers to second-generation mobile network technology, which primarily provided voice and basic data services.

    • 3G refers to third-generation mobile network technology, which introduced faster data speeds and enabled mobile internet access.

    • 5G refers to fifth-generation mobile network technology, which offers significantly faster data speeds, lower l...

  • Answered by AI
  • Q7. Did you take a any participation in deployment activtiy if you have so described me about the roles and responsibilities for the deployment team ?
  • Q8. What is the HTTPS port number ?
  • Ans. 

    The HTTPS port number is 443.

    • HTTPS uses port 443 for secure communication.

    • It is the default port for secure HTTP connections.

    • HTTPS encrypts data using SSL/TLS protocols.

    • Examples: https://www.example.com:443 or https://192.168.0.1:443

  • Answered by AI
  • Q9. What is the HTTP port number ?
  • Ans. 

    The HTTP port number is 80.

    • The default port number for HTTP is 80.

    • It is used for communication between web servers and clients.

    • Other common port numbers for HTTP include 8080 and 8888.

  • Answered by AI
  • Q10. What is the ssh port number and why we used the ssh service ?
  • Ans. 

    SSH port number is 22. SSH service is used for secure remote access and secure file transfer.

    • SSH port number is 22 by default

    • SSH stands for Secure Shell

    • SSH service provides secure remote access to servers

    • It encrypts the data transmitted over the network

    • SSH service is used for secure file transfer (SFTP) and remote command execution

    • It provides authentication and encryption for secure communication

  • Answered by AI
  • Q11. What is the OSI model and describe about the each and every layer of that layer function and functionality?
  • Ans. 

    The OSI model is a conceptual framework that standardizes the functions of a communication system into seven layers.

    • Layer 1 (Physical): Deals with the physical transmission of data over the network.

    • Layer 2 (Data Link): Provides error-free transmission of data frames between nodes on the same network.

    • Layer 3 (Network): Handles routing and logical addressing to enable data transfer between different networks.

    • Layer 4 (Tra...

  • Answered by AI
  • Q12. What is the tcp/ip model and why we used this model in current scenario?
  • Ans. 

    The TCP/IP model is a network protocol suite that defines how data is transmitted over the internet.

    • The TCP/IP model consists of four layers: Network Interface, Internet, Transport, and Application.

    • It is used in the current scenario because it provides a standardized framework for communication between devices on a network.

    • The TCP/IP model allows for reliable and efficient data transmission, ensuring that data packets ...

  • Answered by AI
  • Q13. What is the dtp porotocol ?
  • Ans. 

    DTP (Dynamic Trunking Protocol) is a Cisco proprietary protocol used to negotiate trunking between switches.

    • DTP is used to automatically negotiate trunking on a link between Cisco switches.

    • It allows switches to dynamically form trunk links without manual configuration.

    • DTP operates in three modes: dynamic auto, dynamic desirable, and trunk.

    • Dynamic auto mode waits for the other end to initiate trunking.

    • Dynamic desirable ...

  • Answered by AI
  • Q14. Which series you have worked on router device and the vendors?
  • Ans. 

    I have worked on various router devices and vendors.

    • Cisco routers (e.g. Cisco 2900 series)

    • Juniper routers (e.g. Juniper MX series)

    • Huawei routers (e.g. Huawei NE series)

    • MikroTik routers (e.g. MikroTik RB series)

  • Answered by AI

Skills evaluated in this interview

Interview questions from similar companies

I was interviewed in Apr 2017.

Interview Preparation Tips

Round: Group Discussion
Experience: They asked us to place our opinions and justify our points during the discussion.They analyzed the way we speak and also the points that we make.They also analyzed the way we make a counter opinion (if we had one)
Tips: Be confident in what you say
Duration: 5 minutes

Skills: Communication And Confidence, Technical Skill And Speaking Skill
College Name: MIT College Of Engineering
Interview experience
4
Good
Difficulty level
Moderate
Process Duration
Less than 2 weeks
Result
No response
Round 1 - Technical 

(4 Questions)

  • Q1. Ospf more deep knowledge
  • Q2. Ospf scenario based question
  • Q3. STP loop prevention how its working
  • Ans. 

    STP loop prevention is achieved by blocking redundant paths in a network to prevent loops.

    • STP (Spanning Tree Protocol) identifies redundant paths in a network

    • STP selects a root bridge to be the central point of the network

    • STP blocks certain ports to prevent loops while still allowing for redundancy

    • If a link fails, STP will unblock a previously blocked port to maintain connectivity

  • Answered by AI
  • Q4. More info about Routing if you good any one routing just inform based on they will ask

Interview Preparation Tips

Interview preparation tips for other job seekers - If looking Network engineer just learn more about routing and switching

Any routing protocol recommend OSPF
VLAN
STP
HSRP

how traffic flow

Skills evaluated in this interview

I applied via Naukri.com and was interviewed in Aug 2021. There were 5 interview rounds.

Interview Questionnaire 

14 Questions

  • Q1. Interview advice on DNS-DHCP domain
  • Q2. - What is DNS
  • Ans. 

    DNS stands for Domain Name System. It is a system that translates domain names into IP addresses.

    • DNS is like a phonebook for the internet

    • It helps to locate websites by translating domain names into IP addresses

    • DNS servers store information about domain names and their corresponding IP addresses

    • DNS queries are sent by web browsers to DNS servers to resolve domain names

    • DNS can also be used for other purposes such as emai

  • Answered by AI
  • Q3. - Query types, Iterative, Recursive
  • Q4. Zone types, Zone Transfer
  • Q5. Forwarding vs Delegation vs Stub zone
  • Ans. 

    Forwarding, delegation, and stub zones are all methods of DNS resolution.

    • Forwarding involves sending DNS queries to another DNS server for resolution.

    • Delegation involves assigning responsibility for a subdomain to another DNS server.

    • Stub zones are a copy of a zone's NS records used to reduce DNS query traffic.

    • All three methods can improve DNS performance and reliability.

    • Forwarding and delegation can be configured at th...

  • Answered by AI
  • Q6. DNS response Codes, NXDOMAIN, SRVFAIL, NOERROR etc.
  • Q7. Authoritative, non-authoritative query
  • Q8. DNS record types
  • Q9. DHCP packets
  • Q10. DORA process with same network and different network
  • Ans. 

    The DORA process is used for IP address assignment in a network. It consists of four steps: Discover, Offer, Request, and Acknowledge.

    • Discover: The client sends a broadcast message to find available DHCP servers.

    • Offer: DHCP servers respond with an IP address lease offer.

    • Request: The client selects an IP address and sends a request to the DHCP server.

    • Acknowledge: The DHCP server acknowledges the request and assigns the

  • Answered by AI
  • Q11. DHCP Failover
  • Q12. EDNS, DNSSEC, TCP port 53, UDP port 53
  • Q13. DDNS workflow
  • Q14. Important Ports, 53,22,123,61,67,68 etc.

Interview Preparation Tips

Interview preparation tips for other job seekers - Read the RFC for a better understanding of the DNS-DHCP.

Skills evaluated in this interview

I applied via Newspaper Ad and was interviewed in Jul 2022. There were 2 interview rounds.

Round 1 - Resume Shortlist 
Pro Tip by AmbitionBox:
Keep your resume crisp and to the point. A recruiter looks at your resume for an average of 6 seconds, make sure to leave the best impression.
View all tips
Round 2 - Coding Test 

Coding test contains 2 questions

Interview Preparation Tips

Interview preparation tips for other job seekers - we want to prepare well for any assessment and interviews

Interview Questionnaire 

1 Question

  • Q1. Prepare c basic well,pointers,const,volatile,memory allocation then Linux command basic l2 like arc table,ping working,osi layer TCP and UDP.

Interview Preparation Tips

Interview preparation tips for other job seekers - Interviewer is well known person technical..
Interview experience
4
Good
Difficulty level
-
Process Duration
-
Result
-

I applied via Campus Placement

Round 1 - Resume Shortlist 
Pro Tip by AmbitionBox:
Don’t add your photo or details such as gender, age, and address in your resume. These details do not add any value.
View all tips
Round 2 - Coding Test 

Simple basic question of dsa were asked

Round 3 - Technical 

(3 Questions)

  • Q1. Questions asked from computer network . all the concepts of computer network are useful like osi layers, ipv4 vs ipv6, cloud computing , routers.
  • Q2. Question on virtualization.
  • Q3. Different layers of osi models.
  • Ans. 

    The OSI model has 7 layers that define how data is transmitted over a network.

    • Layer 1: Physical layer - deals with the physical aspects of transmitting data

    • Layer 2: Data link layer - responsible for error-free transfer of data between nodes

    • Layer 3: Network layer - handles routing of data between different networks

    • Layer 4: Transport layer - ensures reliable delivery of data between applications

    • Layer 5: Session layer - e...

  • Answered by AI
Round 4 - HR 

(2 Questions)

  • Q1. Questions on family backgound
  • Q2. Questions on introduce yourself.

Interview Preparation Tips

Interview preparation tips for other job seekers - one should prepare computer network thoroly and terms like cloud computing, routers,virtualization.

Skills evaluated in this interview

I applied via Naukri.com and was interviewed in Jun 2021. There were 4 interview rounds.

Interview Questionnaire 

7 Questions

  • Q1. Basic TCP/IP
  • Q2. DHCP process
  • Q3. Intervlan troubleshooting
  • Q4. Diff b/w l3 switch and router
  • Ans. 

    L3 switch is a switch with routing capabilities while a router is a dedicated device for routing.

    • L3 switch operates at layer 2 and layer 3 of the OSI model while a router operates only at layer 3.

    • L3 switch can perform routing functions like a router but also has the ability to switch frames between ports like a switch.

    • Routers are typically used to connect different networks while L3 switches are used to segment a netwo...

  • Answered by AI
  • Q5. Vlan leakage
  • Ans. 

    VLAN leakage is when traffic from one VLAN is mistakenly sent to another VLAN.

    • VLAN tagging should be properly configured to prevent leakage

    • Access control lists (ACLs) can be used to restrict traffic between VLANs

    • VLAN pruning can be used to limit the number of VLANs that are propagated throughout the network

    • Examples of VLAN leakage include a misconfigured switch port or a compromised network device

  • Answered by AI
  • Q6. TCP 3 way handshake
  • Ans. 

    TCP 3 way handshake is a process of establishing a connection between two devices over a network.

    • The client sends a SYN packet to the server

    • The server responds with a SYN-ACK packet

    • The client sends an ACK packet to the server to confirm the connection

    • This process is used to ensure reliable communication between devices

  • Answered by AI
  • Q7. Arp process

Interview Preparation Tips

Interview preparation tips for other job seekers - You need to prepare for basic topics with deep understanding
Communication and manager round is easy

Skills evaluated in this interview

I applied via LinkedIn and was interviewed in Oct 2022. There were 2 interview rounds.

Round 1 - Resume Shortlist 
Pro Tip by AmbitionBox:
Properly align and format text in your resume. A recruiter will have to spend more time reading poorly aligned text, leading to high chances of rejection.
View all tips
Round 2 - Technical 

(3 Questions)

  • Q1. 1. How router install routes in routing table 2. IPsec VPN types 3. application slowness troubleshooting 4 Some questions from F5 LTM.
  • Ans. 

    Questions on router routing table, IPsec VPN types, application slowness troubleshooting, and F5 LTM.

    • Router installs routes in routing table using routing protocols such as OSPF, BGP, etc.

    • IPsec VPN types include site-to-site, remote access, and extranet VPNs.

    • Application slowness troubleshooting involves checking network latency, server performance, and application code.

    • F5 LTM questions may include load balancing algori

  • Answered by AI
  • Q2. How to troubleshoot IPsec vpns
  • Ans. 

    To troubleshoot IPsec vpns, check configuration, logs, and network connectivity.

    • Check if the configuration is correct and matches on both ends

    • Check the logs for any error messages or warnings

    • Verify network connectivity between the two endpoints

    • Check for any firewall or NAT issues

    • Ensure that the correct encryption and authentication algorithms are being used

    • Check for any MTU issues

    • Verify that the VPN tunnel is up and ru

  • Answered by AI
  • Q3. What is ssl persistence in F5.
  • Ans. 

    SSL persistence is a feature in F5 that allows a client to maintain a secure connection with the same server during a session.

    • SSL persistence ensures that a client's SSL session is maintained with the same server throughout the session.

    • This feature is useful in scenarios where multiple servers are used to handle client requests.

    • SSL persistence can be configured based on SSL session ID, SSL session ticket, or SSL sessio...

  • Answered by AI

Interview Preparation Tips

Interview preparation tips for other job seekers - Please prepares basics well.
Try to focus more on IPsec conepts

Skills evaluated in this interview

I applied via Naukri.com and was interviewed in Jun 2021. There were 5 interview rounds.

Interview Questionnaire 

1 Question

  • Q1. TCP/IP layers, why is transport needed for communication? What is Subnet mask and how does it help in data communication. Why is Vlan needed? Based on what information does a switch and router send a packe...
  • Ans. 

    Questions related to TCP/IP layers, subnet mask, VLAN, ARP, port number, IP and MAC addresses.

    • Transport layer is needed for reliable communication and error correction.

    • Subnet mask is used to identify the network and host portions of an IP address.

    • VLAN is needed for network segmentation and security.

    • Switches and routers send packets or frames based on destination IP address.

    • Types of ARP include ARP request and ARP reply...

  • Answered by AI

Interview Preparation Tips

Interview preparation tips for other job seekers - This interview is basically to know if you have clarity on your basics and how things actually happen rather than just theory. My advice would be have a thorough knowledge and be very clear on the packet flow and how does it happen.
I was not asked any theory based questions. It was all why is this needed and how does that needed.
And just be confident.

Skills evaluated in this interview

Infinite Computer Solutions Interview FAQs

How many rounds are there in Infinite Computer Solutions Network Support Engineer interview?
Infinite Computer Solutions interview process usually has 1 rounds. The most common rounds in the Infinite Computer Solutions interview process are Technical.
What are the top questions asked in Infinite Computer Solutions Network Support Engineer interview?

Some of the top questions asked at the Infinite Computer Solutions Network Support Engineer interview -

  1. in which layer the Ip address is working on if it working on L3 so how can we a...read more
  2. what is the OSI model and describe about the each and every layer of that layer...read more
  3. What is the main function of the Root bridge switc...read more

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Infinite Computer Solutions Network Support Engineer Interview Process

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Interview experience

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Good
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