SA Travels Network Administrator Interview Questions and Answers for Freshers

Interview questions for Network Administrator role

• Architecture of Firewalls

• Previous role & responsibilities

• Troubleshooting end-user website/server access issues

• Handling latency issues

• Exceptional cases in firewall troubleshooting

• Understanding 3-way handshake

• HSRP and its feasibility with different geolocations

• TCP vs UDP differences

• Understanding ISO OSI model

The formula for power is the rate at which work is done or energy is transferred.

• Power = Work / Time

• Power = Force x Velocity

• Power = Voltage x Current

• Power = (Current)^2 x Resistance

Ohm's Law states that the current flowing through a conductor is directly proportional to the voltage applied across it, and inversely proportional to the resistance of the conductor.

• Ohm's Law is represented by the formula V = I * R, where V is voltage, I is current, and R is resistance.

• It helps in calculating the relationship between voltage, current, and resistance in an electrical circuit.

• For example, if a circuit h...read more

Designed and implemented a network infrastructure upgrade for a medium-sized company.

• Researched and selected new networking equipment to improve performance and security

• Created a detailed project plan outlining tasks and timelines

• Worked with cross-functional teams to minimize downtime during implementation

• Conducted testing and troubleshooting to ensure smooth transition

• Provided training to IT staff on new network confi

Network is a collection of interconnected devices that communicate with each other using protocols.

• DHCP (Dynamic Host Configuration Protocol) is a network protocol that automatically assigns IP addresses to devices on a network.

• A switch is a networking device that connects devices on a local area network (LAN) and forwards data packets between them.

• A router is a networking device that connects multiple networks and for...read more

STP is a network protocol that prevents loops in Ethernet networks. Ping is a network utility used to test connectivity. OSI model is a framework for understanding how networks operate. IP address is a unique identifier for devices on a network. MAC address is a hardware address for network devices. ARP is a protocol used to map IP addresses to MAC addresses. RRRP is not a standard networking term.

• STP stands for Spanni...read more