300-720 Question #133: Real Exam Question with Answer & Explanation

The correct answer is C: Device route. An IPv6 route specifying a full 128-bit address like 2620:104:4360:9232::23 represents a device route, which directs traffic to a singular host endpoint.

System Quarantines and Delivery Methods

Question

An engineer is reviewing the SMTP routing table on a Cisco ESA using the smtproutes CLI command and discovers an IPv6 route for 2620:104:4360:9232::23. What type of IPv6 route does this represent?

Options

ANetwork route
BSubnet route
CDevice route
DPrefix route

Explanation

An IPv6 route specifying a full 128-bit address like 2620:104:4360:9232::23 represents a device route, which directs traffic to a singular host endpoint.

Common mistakes.

A. A network route typically refers to a broader range of IP addresses, often denoted with a CIDR prefix shorter than /128, representing a network segment.

Concept tested. Cisco ESA SMTP IPv6 route types

Reference. https://www.cisco.com/c/en/us/td/docs/security/esa/esa12-0/user_guide/b_ESA_Admin_Guide_12_0/b_ESA_Admin_Guide_12_0_chapter_01000.html#con_1143899

Topics

#IPv6 routing#Cisco ESA CLI#SMTP routing#Host routes

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