Jamia Millia Islamia Computer Networks Previous Year Questions (PYQs) – Page 1 of 3
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Internet works on —
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Solution
The Internet primarily uses packet switching, where data is broken into packets before transmission.
Which type of switching is used in Internet?
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Solution
Internet communication is based on packet switching.
What is the meaning of OSI in terms of computers?
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Solution
OSI stands for Open System Interconnection, a model for network communication.
The method of communication in which transmission takes place in both directions, but only one direction at a time, is called:
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Solution
Two-way but not simultaneous ⇒ half duplex.
The topology with the highest reliability is:
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Solution
Mesh provides multiple redundant paths; most reliable.
In IPv4, the length of an IP address is:
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Solution
IPv4 uses a 32-bit address space, typically written in dotted-decimal form (e.g., 192.168.1.1).
Which protocol is used to send messages from a mail client to a mail server?
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Solution
SMTP (Simple Mail Transfer Protocol) is used to send emails from client to mail server or between servers.
Which out of these does NOT support VoIP?
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Solution
Solution:
VoIP = Voice over Internet Protocol — used for calling over the internet.
All three — WhatsApp, FaceTime, and IMO — support VoIP.
So none of these options is correct.
The terms Goodput, Throughput, Maximum throughput are most closely associated with which among the following?
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Solution
They are network/data-transfer rate measures.
Which of the following is not a phase during communication via circuit switching?
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Solution
Circuit switching involves three phases —
1️⃣ Circuit establishment
2️⃣ Data transfer
3️⃣ Circuit disconnect
Tunneling is related to virtual private networks (VPN), not circuit switching.
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