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, Question: 01.
In which two situations does physical device redundancy make sense in a network design?
(Choose two.)
a) When zero impact to users and applications is required during device failures.
b) When device failures in the customer's WAN provider are a possibility.
c) When downtime is not acceptable for device upgrades.
d) When server load in the DMZ is a is higher than normal.
#
Explanation:
Option a: Physical device redundancy is necessary where network availability is paramount
and users or application cannot for any reason accept any loss of service, such as in the high
availability application scenarios.
Option c: Redundancy also determines as optimal when the allowed time for the maintenance
activities such as devices upgrades, is nil. This is because an extra device can be active all the
time, while the other is taken for servicing.
Question: 02.
You must design a campus that involves Ethernet switches that will be using Cat 6 copper
cables. What is the maximum distance between the Ethernet switches?
a) 100 feet
b) 1000 feet
c) 100 meters
d) 1000 meters
#Hint:
Copper based CAT 6 cables are often used in Ethernet applications and Cat 6 cables are best
optimized up to a distance of 100 meter … [approximately 328 feet]. There’s a limit up to which
Ethernet can be deployed in standard or high-speed without the signals being lost or merged
with other interferences.
Sizes such as 100 feet are inadequate and 1000 feet are too much for Cat 6 cables and 1000
meters is even more than the capability of Cat 6.