What is the MOST effective countermeasure against packet sniffing?

The correct answer is A. Using encrypted protocols such as HTTPS. Encrypting traffic with protocols like HTTPS renders intercepted packets unreadable to an attacker - even if they capture the data, they cannot interpret it without the decryption key, which directly neutralizes sniffing attacks. Disabling unused switch ports (B) is a physical ac

Attacks and Countermeasures

Question

Options

AUsing encrypted protocols such as HTTPS
BDisabling unused switch ports
CUpdating antivirus software regularly
DIncreasing password complexity

How the community answered

(35 responses)

A
74% (26)
B
14% (5)
C
3% (1)
D
9% (3)

Explanation

Encrypting traffic with protocols like HTTPS renders intercepted packets unreadable to an attacker - even if they capture the data, they cannot interpret it without the decryption key, which directly neutralizes sniffing attacks. Disabling unused switch ports (B) is a physical access control measure that addresses unauthorized device connections, not data interception on active links. Antivirus software (C) detects malware on endpoints and has no bearing on network traffic being captured in transit. Password complexity (D) strengthens authentication but does nothing to protect data flowing across the wire.

Memory tip: Think "sniffing = seeing your data" - the only way to stop someone from using what they see is to make it unreadable. Encryption is the lock on the envelope, not just the lock on the mailbox.

Topics

#packet sniffing#encryption#HTTPS#network countermeasures

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