Refer to the exhibit. Shortly after SiteA was connected to SiteB over a new single-mode fiber path, users at SiteA report intermittent connectivity issues with applications hosted at SiteB. What is th

The correct answer is A. Interface errors are incrementing. reliability 255/255: When the input and output errors increase, they affect the reliability counter. This indicates how likely it is that a packet can be delivered or received successfully. Reliability is calculated like this: reliability = number of packets / number of total fra

Submitted by chen.hong· Mar 5, 2026Network Fundamentals

Question

Refer to the exhibit. Shortly after SiteA was connected to SiteB over a new single-mode fiber path, users at SiteA report intermittent connectivity issues with applications hosted at SiteB. What is the cause of the intermittent connectivity issue?

Exhibits

Options

AInterface errors are incrementing
BAn incorrect SFP media type was used at SiteA
CHigh usage is causing high latency
DThe sites were connected with the wrong cable type

How the community answered

(51 responses)

A
82% (42)
B
4% (2)
C
2% (1)
D
12% (6)

Explanation

reliability 255/255: When the input and output errors increase, they affect the reliability counter. This indicates how likely it is that a packet can be delivered or received successfully. Reliability is calculated like this: reliability = number of packets / number of total frames. The value of 255 is the highest value meaning that the interface is very reliable at the moment. The calculation above is done every 5 minutes.

Topics

#interface errors#fiber troubleshooting#SFP#physical layer

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