Teleysia Networks Field Engineer Interview Questions and Answers

Optical fiber works on the principle of total internal reflection of light.

• Light is transmitted through a core made of glass or plastic

• The core is surrounded by a cladding layer with a lower refractive index

• When light enters the core at an angle greater than the critical angle, it reflects back into the core

• This allows the light to travel long distances without significant loss of signal

• Used in telecommunications, inte

The backup port number for SQL is 1433.

• The default backup port number for SQL is 1433.

• This port number can be changed during installation or configuration.

• It is important to ensure that the backup port is open and accessible for backup and restore operations.

Network problem resolution involves identifying, troubleshooting, and fixing issues to restore network functionality.

• Identify the problem by gathering information from users and network devices

• Troubleshoot the issue by checking network configurations, cables, and devices

• Fix the problem by applying solutions such as restarting devices or reconfiguring settings

• Test the network to ensure the problem is resolved and functi

Testing processes like visual inspection, functional testing, and diagnostic testing can confirm a faulty part.

• Visual inspection for physical damage or defects

• Functional testing to check if the part is working as intended

• Diagnostic testing to identify specific issues or faults

• Using specialized tools like multimeters or oscilloscopes

• Consulting technical documentation for troubleshooting steps

There are several types of modems including cable, DSL, fiber, and satellite modems. Local lead refers to a person who is in charge of managing a team or project in a specific geographic area.

• Types of modems include cable, DSL, fiber, and satellite modems

• Local lead is a person responsible for managing a team or project in a specific geographic area

There are two main types of modems: dial-up modems and broadband modems.

• Dial-up modems use a phone line to connect to the internet at slower speeds.

• Broadband modems use cable, DSL, fiber optic, or satellite connections for faster internet speeds.

• Examples include DSL modems, cable modems, and fiber optic modems.

Router installation involves setting up a router device to establish a network connection.

• Physically connect the router to the modem using an Ethernet cable

• Access the router's settings through a web browser

• Configure the network settings such as SSID, password, and security protocols

• Test the connection to ensure proper functionality

Router troubleshooting involves identifying and resolving issues with network routers.

• Identifying connectivity issues

• Checking router configurations

• Updating firmware or software

• Resetting the router

• Checking for physical damage

• Analyzing network traffic

• Testing network cables

• Checking for interference from other devices

BGP (Border Gateway Protocol) is a standardized exterior gateway protocol used to exchange routing information between different autonomous systems on the internet.

• BGP is used to make routing decisions based on network policies, rules, and attributes.

• It is a path vector protocol that uses TCP as its transport protocol.

• BGP routers exchange routing information by advertising routes to their neighbors.

• BGP is commonly used...read more

BGP (Border Gateway Protocol) types refer to different categories of BGP messages exchanged between routers.

• BGP Update messages - used to advertise routing information between BGP routers

• BGP Open messages - used to establish a BGP session between routers

• BGP Keepalive messages - used to maintain the BGP session by confirming connectivity

• BGP Notification messages - used to report errors or terminate the BGP session

Routers are networking devices that forward data packets between computer networks.

• Routers operate at the network layer of the OSI model

• They use IP addresses to determine the best path for data packets

• Examples include Cisco, Juniper, and TP-Link routers

BGP state refers to the current status of a BGP session between two routers.

• BGP state can be in one of several states such as Idle, Connect, OpenSent, OpenConfirm, Established.

• The Established state indicates that the BGP session is fully established and routing information can be exchanged.

• The Idle state means that the BGP session is not active and no routing information is being exchanged.

• The Connect state indicates t...read more

Switch login and configuration involves accessing a switch's management interface to make changes to its settings.

• Switch login is the process of accessing a switch's management interface using a username and password.

• Configuration involves making changes to the switch's settings such as VLANs, port configurations, and security settings.

• Common protocols used for switch login and configuration include SSH, Telnet, and we...read more