Maksat Technologies Network Engineer L1 L2 Interview Questions and Answers

Network related questions

Q1. What is salary expectation?
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Q2. Document verification
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Q1. What is IPRAN solution
Ans. 
IPRAN solution stands for Internet Protocol Radio Access Network, which is a network architecture that combines IP/MPLS and mobile technologies.
• IPRAN solution is used to provide high-speed internet access to mobile users.

• It helps in optimizing network resources and improving network performance.

• Examples of IPRAN solution providers include Cisco, Huawei, and Juniper Networks.
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Q2. What is the different types of L2VPN we have
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Different types of L2VPN include Ethernet VPN (EVPN), Virtual Private LAN Service (VPLS), and Layer 2 Tunneling Protocol (L2TP).
• Ethernet VPN (EVPN) - Uses BGP as the control plane protocol for distributing MAC addresses across the network.

• Virtual Private LAN Service (VPLS) - Extends a LAN over the network, allowing multiple sites to appear as if they are on the same LAN segment.

• Layer 2 Tunneling Protocol (L2TP) - Creat...read more
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Q1. Volte call flow
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Q1. What is Application override ?
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Application override is a feature in network security that allows certain applications to bypass security policies.
• Application override allows specific applications to bypass firewall rules or other security measures.

• It is typically used for critical applications that may be blocked by default security settings.

• Administrators can configure application override rules to allow certain traffic to pass through the network ...read more
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Q2. What is inside the session table ?
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The session table typically stores information about active network connections and their associated details.
• Contains information such as source and destination IP addresses

• Stores port numbers being used in the connection

• Tracks the protocol being used (e.g. TCP, UDP)

• May include timestamps for when the connection was established and last active
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Q3. What is HA3 belongs to and work?
Ans. 
HA3 belongs to HMAC (Hash-based Message Authentication Code) and is used for secure authentication and integrity verification.
• HA3 stands for Hash-based Message Authentication Code 3

• It is used in cryptographic hash functions for secure authentication and integrity verification

• HA3 is commonly used in network security protocols such as TLS (Transport Layer Security) and IPsec (Internet Protocol Security)
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Q4. In Paloalto firewall if cluster failure occur then which log would tou have to check ?
Ans. 
Check the system logs for cluster failure in Paloalto firewall.
• Check the system logs for any error messages related to cluster failure

• Look for logs indicating cluster synchronization issues

• Review logs for any hardware or software failures in the cluster
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Q5. What is Heart Beat link ?
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Heart Beat link is a feature in network security that ensures continuous communication between devices.
• Heart Beat link is a mechanism used to maintain a connection between two devices by sending periodic signals.

• It helps in detecting if a device is still active and reachable on the network.

• If the Heart Beat link fails, it can trigger alerts or actions to address the issue.

• Example: In a VPN connection, Heart Beat link c...read more
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Q6. How many logs type we have in monitor tab in panorama?
Ans. 
There are four types of logs in the monitor tab in Panorama.
• Traffic logs

• Threat logs

• URL logs

• Data logs
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Q7. How to configure firewall from scratch and what will the first step thta we have to follow ?
Ans. 
To configure a firewall from scratch, the first step is to define the security policy.
• Define the security policy based on the organization's requirements and compliance standards

• Identify the network topology and determine the zones that need to be protected

• Select the appropriate firewall hardware or software based on the requirements

• Configure the firewall rules to allow or deny traffic based on the security policy

• Test ...read more
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Q8. What is statefull means ?
Ans. 
Stateful means the system or device keeps track of the state of active connections and can differentiate between different connections.
• Stateful devices maintain information about the state of active connections

• They can differentiate between different connections based on various parameters

• Stateful firewalls keep track of the state of network connections to make decisions on allowing or blocking traffic
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Q1. -tell us about yourself
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Q2. -what experience do u have as a network engineer
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Q3. What do you know about Huawei
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Q4. What is MPLS protocol and in what situations do we use it
Ans. 
MPLS (Multiprotocol Label Switching) is a protocol used in high-performance telecommunications networks to direct data packets along predefined paths.
• MPLS is used to improve network performance by efficiently routing data packets based on labels instead of IP addresses.

• It is commonly used in scenarios where quality of service (QoS) and traffic engineering are important, such as in large enterprise networks or service p...read more
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Q5. Explain the three different INTER_AS solutions their advantages and disadvantages
Ans. 
Three different INTER_AS solutions and their advantages and disadvantages
• Option 1: Option A - Advantages: Scalability, Disadvantages: Complexity

• Option 2: Option B - Advantages: Simplicity, Disadvantages: Limited scalability

• Option 3: Option C - Advantages: Flexibility, Disadvantages: Potential security risks
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It contains logical reasoning, quantitative aptitude, and technical questions

Q1. Technical questions based on networks
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Q1. Questions were based on wireless Communication
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Q1. What is a network and u now switch
Ans. 
A network is a group of interconnected devices that communicate with each other to share resources and information.
• A network can be wired or wireless

• Devices on a network can include computers, printers, routers, and switches

• Networks can be local (LAN) or wide area (WAN)

• Switches are devices that connect devices on a network and direct traffic between them
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Q2. What is power battery switch
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A power battery switch is a device used to control the flow of power from a battery to a circuit or device.
• It is typically used in situations where multiple batteries are connected to a circuit and need to be switched on or off.

• The switch allows for easy control and management of power sources.

• Examples include battery backup systems for network equipment, where the switch determines whether power is sourced from the ma...read more
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Q3. What optical fiber splicing
Ans. 
Optical fiber splicing is the process of joining two fiber optic cables together.
• Splicing is done to extend the length of a fiber optic cable or to repair a damaged cable.

• There are two types of splicing: fusion splicing and mechanical splicing.

• Fusion splicing involves melting the ends of two fibers together using an electric arc.

• Mechanical splicing involves aligning the two fibers and holding them together with a splic...read more
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Q4. Splicing mechanics otdr lsm
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Q1. How to do load balancing? What are the parameters, How to improve verious KPi, Like VDR, HOSR Initial ERAB, CQI,SSSR
Ans. 
Load balancing involves distributing network traffic across multiple servers to optimize resource utilization and prevent overload.
• Parameters for load balancing include server health, server capacity, and current network traffic.

• To improve various KPIs like VDR, HOSR, Initial ERAB, CQI, and SSSR, you can adjust load balancing algorithms, optimize server performance, and monitor network traffic.

• For example, you can use ...read more
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Q1. Salary expectation. Perks and benefits
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