Alethea Communications Technologies Technical Support Engineer Interview Questions and Answers

2.5g refers to 2.5 GHz frequency band, while 5GHz refers to 5 GHz frequency band used in wireless communication.

• 2.5g operates in the 2.4 GHz frequency band, while 5GHz operates in the 5 GHz frequency band.

• 5GHz offers faster data transfer speeds and less interference compared to 2.5g.

• 2.5g is commonly used in older Wi-Fi standards like 802.11b/g, while 5GHz is used in newer standards like 802.11n/ac.

• Devices supporting 5G

DNS stands for Domain Name System, which translates domain names to IP addresses.

• DNS is like a phone book for the internet, translating human-readable domain names (like google.com) to IP addresses (like 172.217.3.206)

• It helps users access websites by typing in easy-to-remember domain names instead of complex IP addresses

• DNS servers store records of domain names and their corresponding IP addresses

RJ32 cable is a type of telephone cable used for connecting telecommunication devices.

• RJ32 cable has 4 conductors and is commonly used for connecting telephones to wall jacks.

• It is similar to RJ11 cable but has additional conductors for special applications.

• RJ32 cables are often used in commercial settings for connecting multiple lines to a single device.

Domain Name Service (DNS) is a system that translates domain names into IP addresses, allowing users to access websites using human-readable names.

• DNS is like a phone book for the internet, translating domain names (like google.com) into IP addresses (like 172.217.3.206).

• DNS helps users access websites by resolving domain names to the corresponding IP addresses.

• DNS servers store records of domain names and their corres...read more

A router is a device that forwards data packets between computer networks, while a modem is a device that modulates and demodulates signals for internet access.

• Router connects multiple devices to a network and routes data between them

• Modem connects a device to the internet by modulating and demodulating signals

• Examples: Router - TP-Link Archer C7, Modem - Motorola MB7420

Ping and tracert are network diagnostic tools used to test connectivity and troubleshoot network issues.

• Ping sends a packet to a specific IP address to check if it is reachable and measures the round-trip time.

• Tracert shows the route that packets take to reach a destination, displaying each hop along the way.

• Ping is used to test basic network connectivity, while tracert helps identify network latency and routing issues

RJ32 cable is a type of telephone cable used for connecting telecommunication devices.

• RJ32 cable has 4 conductors and is commonly used for connecting telephones to wall jacks.

• It is similar to RJ11 cable but has additional conductors for special applications.

• RJ32 cables are often used in commercial settings for connecting multiple lines to a single device.