SAC Networking and Security Fundamentals 3

Question 1

Which wireless security protocol is currently considered the strongest for enterprise networks?

Accepted Answer

WPA3-Enterprise

Answer

WPA3-Enterprise provides the strongest wireless security with 192-bit encryption and improved authentication.

Question 2

A user reports they cannot reach any websites but can ping the default gateway. What is the MOST likely cause?

Accepted Answer

DNS server failure

Answer

If the gateway is reachable but websites are not, DNS is likely failing to resolve domain names to IP addresses.

Question 3

Which OSI layer is responsible for end-to-end error detection and flow control?

Accepted Answer

Layer 4 – Transport

Answer

The Transport layer (Layer 4) manages end-to-end communication, error recovery, and flow control using protocols like TCP.

Question 4

What is the default subnet mask for a Class C IP address?

Accepted Answer

255.255.255.0

Answer

Class C networks use a /24 prefix, corresponding to the subnet mask 255.255.255.0.

Question 5

Which attack involves sending unsolicited emails to trick users into revealing credentials?

Accepted Answer

Phishing

Answer

Phishing uses deceptive emails that impersonate trusted sources to steal usernames, passwords, or other sensitive data.

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