Question 1easymulti select
Full question →easymulti selectObjective-mapped
A network analyst reviews packet captures from a subnet where users intermittently lose access to the gateway. Which two findings would most strongly indicate ARP spoofing? Select two.
Answer choices
Why each option matters
Good practice is not just finding the correct option. The wrong answers often show the exact trap the exam wants you to fall into.
A
Best answer
Repeated unsolicited ARP replies map the gateway IP to a different MAC address.
Repeated unsolicited ARP replies are a classic sign of spoofing on a LAN.
B
Best answer
Several hosts suddenly send gateway traffic to the same unexpected MAC address.
Multiple hosts sending gateway traffic to one unexpected MAC is suspicious behavior.
C
Distractor review
Extra DNS traffic appears during the lunch hour.
Extra DNS traffic can indicate many different issues, not necessarily ARP abuse.
D
Distractor review
A switch port negotiates a slower speed than usual.
A slower switch port usually points to cable or interface problems instead.
E
Distractor review
The wireless network name appears in a site survey.
Seeing the wireless network name tells you nothing about gateway address mapping issues.
Common exam trap
Common exam trap: usable hosts are not the same as total addresses
Subnetting questions often tempt you into counting all addresses. In normal IPv4 subnets, the network and broadcast addresses are not usable host addresses.
Technical deep dive
How to think about this question
Subnetting questions test whether you can identify the network, broadcast address, usable range, mask and correct subnet. Slow down enough to calculate the block size correctly.
KKey Concepts to Remember
- CIDR notation defines the prefix length.
- Block size helps identify subnet boundaries.
- Network and broadcast addresses are not usable hosts in normal IPv4 subnets.
- The required host count determines the smallest suitable subnet.
TExam Day Tips
- Write the block size before choosing the subnet.
- Check whether the question asks for hosts, subnets or a specific address range.
- Do not confuse /24, /25, /26 and /27 host counts.
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More questions from this exam
Keep practising from the same exam bank, or move into a focused topic page if this question exposed a weak area.
Question 1
A laptop is suspected of being used in a malware incident. It is still powered on and connected to Wi-Fi. What should the responder do before shutting it down?
Question 2
An employee reports a ransomware note on a file server. The server is still powered on, shares are still being accessed, and management wants service restored as quickly as possible. What should the incident response team do first?
Question 3
An employee reports a ransomware note on a finance laptop. The laptop is still powered on, connected to Wi-Fi, and the user says they were just working in a spreadsheet. Management wants the fastest safe response that also preserves evidence. What should the responder do first?
Question 4
You are handed a company laptop suspected in an insider theft case. Legal says the evidence may be needed in court. Which action best preserves admissibility?
Question 5
A developer wants to reduce the risk of SQL injection in a new customer search form. Which two changes are the best mitigations? Select two.
Question 6
A branch office uses a flat LAN, and a compromise on one user workstation could spread quickly to finance systems. Management wants finance workstations isolated from general users, but finance staff still need access to a central finance application and network printer. What is the best design change?
FAQ
Questions learners often ask
What does this SY0-701 question test?
CIDR notation defines the prefix length.
What is the correct answer to this question?
The correct answer is: Repeated unsolicited ARP replies map the gateway IP to a different MAC address. — ARP spoofing often shows up as unexpected ARP replies that claim the gateway IP belongs to a different MAC address. When that happens, nearby hosts may start sending traffic for the gateway to the attacker’s MAC instead of the real router. Those two findings together are strong evidence of address poisoning and help explain why users intermittently lose access or reach the wrong device. Why others are wrong: Extra DNS traffic and slower switch speed can happen for many non-malicious reasons, such as application changes or cable issues. Seeing a wireless network name in a survey has nothing to do with ARP resolution on a wired subnet. Those items may be worth checking in other cases, but they do not strongly indicate ARP spoofing the way gateway-IP-to-wrong-MAC behavior does.
What should I do if I get this SY0-701 question wrong?
Then try more questions from the same exam bank and focus on understanding why the wrong options are tempting.
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