Which structural part of an email address uniquely identifies the specific inbox owner within a particular hosting provider's domain platform? MCQ with Answer and Explanation

Question

Which structural part of an email address uniquely identifies the specific inbox owner within a particular hosting provider's domain platform?

A. The domain extension (.org/.com)

B. The mail exchange header string

C. The IP address trace configuration

D. The local part (username preceding the @ sign)

Answer: Option D

Solution (By JKExamLibrary)

An email address consists of a local part (identifying the user mailbox) followed by the '@' sign and the domain host name.

This question belongs to: Computer Internet and Web Technologies

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Question #1

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What mechanism translates a human-readable domain name (like [www.google.com](https://www.google.com)) into a machine-readable IP address?

A. DHCP

B. ARP

C. NAT

D. DNS

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Correct Answer: Option D

Explanation:
DNS (Domain Name System) functions as the phonebook of the internet, resolving alphabetical domain names to numerical IP addresses.

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Question #2

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What is the function of the 'ping' tool in relation to a URL?

A. To test website speed

B. To resolve the domain to an IP

C. To check if the web server is reachable

D. To trace the network route

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Correct Answer: Option C

Explanation:
Ping sends ICMP echo requests to the host to determine connectivity and round-trip time.

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Question #3

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In internet technology, what is the term used for the quantitative capacity of a wired or wireless network link to transmit data over a specific period?

A. Bandwidth

B. Velocity

C. Latency

D. Frequency

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Correct Answer: Option A

Explanation:
Bandwidth measures the maximum volume of data that can be transferred across an internet connection in a given unit of time, typically calculated in Mbps or Gbps.

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