Cisco
100-490 Exam
Supporting Cisco Routing & Switching Network Devices
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, Questions & Answers PDF Page 2
Version: 5.1
Topic 1, General Networking Knowledge
Question: 1
Which protocol does TFTP typically use for transport?
A. RSVP
B. TCP
C. HTTP
D. UDP
Answer: D
Explanation:
TFTP, or Trivial File Transfer Protocol, is a simple protocol used for transferring files. Unlike other file
transfer protocols, TFTP operates on top of the User Datagram Protocol (UDP), which is a
connectionless protocol. This means that TFTP does not establish a persistent connection between
the client and server, and it does not guarantee reliable delivery of packets, error checking, or
correction. TFTP is typically used in scenarios where simplicity and minimal memory footprint are
more critical than the need for reliable delivery, such as when booting a device over a
network123. Reference := Wikipedia, GeeksforGeeks, PyNet Labs
Question: 2
What is the correct IPv6 address notation?
A. 2001:0DB8::/128
B. 2001:0DB8:0::
C. 2001:0DB8::1:1:1:1:1
D. 2001:0DB8:130F:0000:0000:7000:0000:140B
Answer: D
Explanation:
The correct IPv6 address notation follows the format of eight groups of four hexadecimal digits,
separated by colons. The address must have exactly eight groups unless it uses the double colon (::)
to represent consecutive groups of zero value. The double colon can only appear once in an address
to avoid ambiguity.
Option A is incorrect because it includes a subnet mask (/128) which is not part of the actual address
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