Answer:
The correct answer to the following question will be "Safe and relatively low data and voice transmission".
Explanation:
Frequently, the word narrow band corresponds to ultra-high-frequency, S and L bands where the reasonable range is restricted compared to the bands of high-frequency.
- It is desirable throughout the extremely-high-frequency, L-, including S-bands due to the beneficial propagation characteristics of the wavelengths.
- Narrow band Satellite systems facilitate the efficient delivery of both wireless mobile networks at comparatively low bandwidths.
So, By the safe and low data transmission, it's the right answer.
The program Nslookup, is available on all operating systems and provides all types of information from a DNS server and allows you to query all types of information from a DNS server and change how your system uses DNS.
The network administration command-line tool nslookup can be used to verify that your DNS servers can resolve external domain names.
Email client as port 25 is the default port for an email server.
Answer:
1. A
2. B
3. C
hope this helps in some way
