Selectsys Network Administrator Interview Questions and Answers

Yes, I have knowledge of Windows OS configuration.

• I am familiar with configuring network settings, such as IP addresses and DNS servers.

• I know how to manage user accounts and permissions.

• I am experienced in installing and updating software and drivers.

• I am proficient in troubleshooting common issues, such as blue screens and slow performance.

• I am knowledgeable in configuring security settings, such as firewalls and ant

Yes, I have completed network training.

• I have completed courses in CCNA, CCNP, and CompTIA Network+.

• I have also attended workshops on network security and troubleshooting.

• I keep myself updated with the latest technologies and industry trends.

Yes, I have completed the CCNA certification.

• I have a strong understanding of networking concepts and protocols.

• I am proficient in configuring and troubleshooting Cisco routers and switches.

• I have experience in designing and implementing network solutions.

• I am familiar with network security and have knowledge of VPNs and firewalls.

Yes, I have plans to pursue CCNA certification in the near future.

• I have already started studying for the CCNA exam

• I believe that obtaining the CCNA certification will enhance my skills and knowledge in network engineering

• I plan to take the exam within the next 6 months

STP stands for Spanning Tree Protocol. It is used to prevent loops in a network and ensure redundancy.

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

• It ensures that there is only one active path between any two network devices.

• STP works by creating a tree-like structure of the network, with one root bridge and multiple branches.

• If a link fails, STP will automatically reroute traffic to an alte...read more

HSRP is a protocol used to provide redundancy for IP networks. It allows two or more routers to share a virtual IP address.

• Configure HSRP on two or more routers with the same group number and virtual IP address

• One router is elected as the active router and forwards packets sent to the virtual IP address

• The other router(s) are in standby mode and take over if the active router fails

• HSRP can be used to provide default ga...read more

VLANs are used to logically separate network traffic and improve network performance and security.

• VLANs allow for better network management and organization by grouping devices based on their function or location.

• They also reduce network congestion by limiting broadcast traffic to devices within the same VLAN.

• VLANs can improve network security by isolating sensitive data or devices from the rest of the network.

• For exam...read more

Firewalls are used to protect networks from unauthorized access and have features like packet filtering, NAT, VPN, and IDS/IPS.

• Firewalls prevent unauthorized access to a network by filtering incoming and outgoing traffic based on predefined rules.

• They can also perform Network Address Translation (NAT) to hide the internal IP addresses from external networks.

• Firewalls can establish Virtual Private Networks (VPNs) to sec...read more

L2 switches operate at the data link layer and L3 switches operate at the network layer of the OSI model.

• L2 switches forward traffic based on MAC addresses while L3 switches forward traffic based on IP addresses.

• L2 switches are used for LANs while L3 switches are used for both LANs and WANs.

• L2 switches are simpler and less expensive than L3 switches.

• L3 switches can perform routing functions while L2 switches cannot.

• Exa...read more

Routers are used to connect different networks together and route traffic between them.

• Routers provide network segmentation and security by separating broadcast domains.

• They can also prioritize traffic and optimize network performance.

• Examples of routers include Cisco, Juniper, and MikroTik.

• Routers are essential for connecting to the internet and accessing remote networks.