Movate Network Engineer Interview Questions, Process, and Tips

Packet flow between same network involves communication between devices within the same IP subnet.

• Devices communicate directly without needing to go through a router.

• Packet headers contain source and destination IP addresses for proper routing.

• Switches forward packets based on MAC addresses within the same network.

• Firewalls may inspect and filter packets within the same network.

• Examples: File sharing between devices on...read more

Packet flow between different networks involves routing, switching, and encapsulation.

• Packet travels from source device to destination device through routers and switches

• Routers determine the best path for the packet based on routing tables

• Switches forward the packet within the same network based on MAC addresses

• Encapsulation involves adding headers and trailers to the packet at each network layer

• Example: Packet from a...read more

A client can get an IP address through DHCP (Dynamic Host Configuration Protocol) or by manually configuring it.

• DHCP (Dynamic Host Configuration Protocol) assigns IP addresses automatically to clients on a network

• Clients can also manually configure their IP address, subnet mask, gateway, and DNS server

• IP addresses can be obtained through IPv4 or IPv6 protocols

The IP phone boot up process involves several steps to initialize the device and connect to the network.

• The phone powers on and performs a self-test

• It obtains an IP address from the DHCP server

• It downloads the firmware and configuration files from the TFTP server

• It registers with the call manager or PBX

• It is ready to make and receive calls

SIP call flow is the process of establishing, maintaining, and terminating a session initiated by Session Initiation Protocol (SIP).

• SIP INVITE message is sent from the caller to the callee

• Callee responds with a SIP 100 Trying message

• Callee sends a SIP 180 Ringing message to indicate the phone is ringing

• Callee sends a SIP 200 OK message to indicate the call is accepted

• Media negotiation takes place between the caller and...read more

Recently faced critical issue was network outage due to hardware failure.

• Hardware failure caused network outage

• Affected multiple departments and caused significant downtime

• Quickly identified and replaced faulty hardware to restore network

• Implemented redundancy measures to prevent future outages

A ticket can be managed by following a systematic approach.

• Acknowledge the ticket and assign it to the appropriate team member

• Set a priority level based on the severity of the issue

• Communicate with the customer and provide regular updates

• Resolve the issue and close the ticket

• Document the entire process for future reference

When we type www.google.com, the browser sends a request to the DNS server to resolve the domain name into an IP address.

• The browser sends a DNS query to the DNS server.

• The DNS server looks up the IP address associated with the domain name.

• The DNS server responds with the IP address.

• The browser establishes a TCP connection with the IP address.

• The browser sends an HTTP request to the IP address.

• The server at the IP addr...read more

Two computers communicate by sending and receiving data packets over a network using protocols such as TCP/IP.

• Computers communicate through a network by establishing a connection.

• Data is divided into packets and sent over the network.

• Protocols like TCP/IP ensure reliable delivery of packets.

• Each computer has a unique IP address to identify it on the network.

• Examples of communication methods include email, web browsing,

SSL handshake happens before TCP handshake.

• SSL handshake establishes a secure connection between client and server.

• TCP handshake establishes a connection between client and server.

• SSL handshake occurs after TCP handshake to secure the connection.

• SSL handshake involves exchanging certificates and negotiating encryption algorithms.

• TCP handshake involves SYN, SYN-ACK, and ACK packets to establish a connection.