HCL Infosystems Network Engineer Interview Questions and Answers

An aptitude is a component of a competence to do a certain kind of work at a certain level. Outstanding aptitude can be considered "talent", or "skill". Aptitude is inborn potential to perform certain kinds of activities, whether physical or mental, and whether developed or undeveloped

Coding is the process of allowing humans to speak to computers. As computers only understand binary language — a series of zeros and ones — humans need to use a programming language as a translator of sorts.

Group discussion is a discussion between a group of participants on a given subject. A group discussion typically forms a part of the selection process used by organisations and educational institutions. The candidates talk about the given topic to present facts, opinions and conclusions.

An assignment is a task that someone in authority has asked you to do. The word assignment is just the noun form of the common verb assign, which you use when you want to give someone a duty or a job. When you assign something, that something is called an assignment.

Case study is an appropriate research design when you want to gain concrete, contextual, in-depth knowledge about a specific real-world subject. It allows you to explore the key characteristics, meanings, and implications of the case. Case studies are often a good choice in a

Q1. Human resources (HR) is the division of a business responsible for finding, recruiting, screening, and training job applicants.
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Q2. Finding, recruiting, screening, and training job applicants
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Q3. Human resources (HR) is the division of a business responsible for finding, recruiting, screening, and training job applicants. HR departments also handle employee compensation, benefits, and terminations.
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Q1. Examples of more advanced technical skills that a job might require include programming languages, technical writing, or data analysis. Unlike workplace skills, also called soft skills, such as communicati...read more
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Technical skills often require specific education, such as programming languages, technical writing, or data analysis.
• Programming languages: Examples include Java, Python, C++, etc.

• Technical writing: Ability to write technical documentation, manuals, and reports.

• Data analysis: Skills in analyzing and interpreting data using tools like Excel, SQL, or R.
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Q2. Programming languages, technical writing, or data analysis
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Q1. Basic of network working
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Q2. Lan wan man topology
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Q3. Vpn ssl ipsec and proxies
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Q4. Ssl tls decryption and encryption
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Q5. Groupingclassing manager
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Q1. How can you avoid loop in IBGP and EBGP
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To avoid loop in IBGP and EBGP, use route reflectors or confederations.
• Use route reflectors to avoid full mesh IBGP and confederations to avoid full mesh EBGP.

• Configure the router to not advertise the same prefix received from one neighbor to another neighbor.

• Use AS path prepending to influence the path selection in EBGP.

• Configure loopback interfaces on routers to avoid the use of physical interfaces in BGP updates.

• Use...read more
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Q2. How to resolve DNS issue?
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DNS issue can be resolved by checking DNS server settings, clearing cache, flushing DNS, and checking network connectivity.
• Check DNS server settings and ensure they are correct

• Clear DNS cache on the client machine

• Flush DNS resolver cache on the DNS server

• Check network connectivity and ensure there are no firewall or routing issues

• Use tools like nslookup or dig to troubleshoot DNS issues
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Q3. What is STP and how DP and RP elected
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STP is a protocol used to prevent network loops. DP and RP are elected based on their bridge priority and MAC address.
• STP stands for Spanning Tree Protocol

• It prevents network loops by blocking redundant paths

• Designated Port (DP) is the port that forwards traffic on a segment

• Root Port (RP) is the port that has the shortest path to the root bridge

• DP and RP are elected based on their bridge priority and MAC address

• The bri...read more
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Q1. Palo Alto firewall packet flow
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Q2. Palo Alto related
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Q3. Template vs template stack
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Template is a single document or file, while template stack is a collection of templates organized in a hierarchy.
• Template is a standalone document or file used as a starting point for creating new documents.

• Template stack is a collection of templates organized in a hierarchy, where each template can inherit properties from templates above it.

• Template stack allows for easier management and consistency in document creat...read more
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Q4. HA upgradations
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Q5. Troubleshoot related
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Q1. DHCP Dns Vtp Vlan Switching basics
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Q2. Wireless basics 4 way handshake
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Q1. 1. Tell me about yourself. 2. Explain Data link from OSI model.
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Q2. 3. How DHCP works ? 4. What is APIPA IP addressing ? 5. Tell me about EIGRP ?
Ans. 
DHCP is a network protocol that dynamically assigns IP addresses to devices on a network. APIPA is a feature in Windows that assigns a default IP address when DHCP fails. EIGRP is a routing protocol used in networking.
• DHCP stands for Dynamic Host Configuration Protocol

• DHCP server assigns IP addresses to devices on a network dynamically

• APIPA (Automatic Private IP Addressing) assigns a default IP address in the range of ...read more
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Q1. Network l2 and L3
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Q2. Firewall, Load balancer
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