Network Engineer Interview Preparation (Part - 7)

Welcome back, everyone! Today, we are excited to kick off a new journey focused on preparing for network engineer interviews. This will be a complete series designed to help our subscribers, featuring 100 articles. This is the 7th article in the series. To stay updated and receive notifications for future posts, be sure to subscribe!

61. What is a network file system (NFS)?

Network File System (NFS) is a distributed file system protocol that allows remote file access and sharing over a network. It enables clients to access files on a server as if they were on their local systems.

62. What is the purpose of a network demilitarized zone (DMZ)?

A network DMZ is a separate network segment that sits between an internal network and an external network, providing an additional layer of security by isolating publicly accessible services from the internal network.

63. What is the purpose of a network analyzer?

A network analyzer, also known as a packet sniffer or protocol analyzer, captures and analyzes network traffic at the packet level, providing insights into protocols, performance, and security issues.

64. What is a network address translation (NAT) overload?

NAT overload, also known as port address translation (PAT), is a technique that allows multiple private IP addresses to share a single public IP address by translating source ports to differentiate between connections.

65. What is the purpose of a network time protocol (NTP)?

The Network Time Protocol (NTP) is used to synchronize clocks on network devices to a reliable time source, ensuring consistent timekeeping for accurate logging, security, and coordination.

66. What is a network anomaly detection system?

A network anomaly detection system uses statistical analysis and machine learning algorithms to identify abnormal network behavior and potential security threats, such as DoS attacks or network intrusions.

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67. What is the purpose of a network packet filter?

A network packet filter examines network packets based on predefined rules or criteria, allowing or blocking packets based on their content, source/destination, or other attributes.

68. What is a network link aggregation group (LAG)?

A network link aggregation group, also known as link aggregation or port trunking, combines multiple physical links into a single logical link, increasing bandwidth and providing redundancy.

69. What is the purpose of a network access control (NAC) system?

A network access control (NAC) system enforces security policies by authenticating and authorizing devices or users before granting access to a network, ensuring only authorized and compliant devices are allowed.

70. What is a network virtualization?

Network virtualization is the process of creating virtual network infrastructure or segments within a physical network, allowing multiple logical networks to share the same physical resources.

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