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NEW QUESTION # 559
A network administrator deploys new network hardware. While configuring the network monitoring server, the server could authenticate but could not determine the specific status of the hardware. Which of the following would the administrator most likely do to resolve the issue?
Answer: B
Explanation:
MIBs (Management Information Bases) define the variables and objects that SNMP can query on a device. If the monitoring server authenticates but cannot interpret the data, it likely lacks the correct MIB for that vendor or model. Importing the proper MIB allows the monitoring server to correctly display device status and metrics.
A). Using a public community string is insecure and not related to missing MIBs.
C). Switchport analyzer (SPAN) captures traffic for packet analysis, not SNMP monitoring.
D). SNMPv3 privacy adds encryption but doesn't fix missing MIB interpretation.
References (CompTIA Network+ N10-009):
Domain: Network Operations - SNMP, MIBs, network monitoring systems.
NEW QUESTION # 560
A network engineer is completing a wireless installation in a new building. A requirement is that all clients be able to automatically connect to the fastest supported network. Which of the following best supports this requirement?
Answer: A
Explanation:
Band Steering: This technology encourages capable devices to use the faster and less congested 5 GHz band. It ensures clients automatically connect to the most optimal frequency, enhancing speed and performance.
Disabling the 5GHz SSID (B): Prevents access to the fastest network, defeating the purpose.
Adding a captive portal (C): Captive portals control access but do not affect network speed.
Configuring MAC filtering (D): Restricts access but does not influence network selection.
NEW QUESTION # 561
Which of the following kinds of targeted attacks uses multiple computers or bots to request the same resource repeatedly?
Answer: D
Explanation:
A Distributed Denial of Service (DDoS) attack leverages multiple computers or bots (botnet) to flood a target system with requests, overwhelming its resources and making it unavailable to legitimate users. This is a common tactic used by attackers to disrupt services. The document explains:
"A DDoS (Distributed Denial of Service) attack involves multiple computers (often called bots) simultaneously sending requests to a single resource, overwhelming the system and causing a denial of service to legitimate users."
NEW QUESTION # 562
What is the most likely cause for a new NIC not working when a port security feature is enabled on the switch?
Answer: C
Explanation:
If a switch has port security enabled (such as sticky MAC or a configured allowed MAC), the port will only allow the original NIC's MAC address. When a new NIC with a different MAC address is installed, the port rejects traffic, preventing network connectivity.
* B. BPDU guard protects against rogue switches, not end hosts.
* C. Link aggregation applies when bundling multiple uplinks, not a single PC connection.
* D. PoE budget applies to powered devices like APs, not PCs.
References (CompTIA Network+ N10-009):
* Domain: Network Troubleshooting - Port security, MAC address filtering, switch security features.
NEW QUESTION # 563
A laptop user gets an error when trying to access the company's intranet site. A technician runs ipconfig /all with the following results:
Autoconfiguration IPv4 Address: 169.254.0.5 (Preferred)
Subnet Mask: 255.255.0.0
Default Gateway:
DHCP Server:
Which of the following is most likely causing the issue?
Answer: C
Explanation:
The correct answer is C. Address pool exhaustion . The laptop has assigned itself an address in the 169.254.
x.x range, which is an APIPA address. That happens when the device is configured to use DHCP but cannot successfully obtain an address lease from a DHCP server. The missing default gateway and DHCP server entries support that conclusion.
Among the choices, the most likely reason is that the DHCP scope has run out of available addresses .
When the pool is exhausted, new clients cannot receive a valid IP configuration and fall back to an automatic private address. As a result, the laptop will not be able to reach internal company resources like the intranet because it is not properly configured for the network.
The other answers do not fit the evidence. A short DHCP lease duration may cause more frequent renewals, but it does not directly explain the self-assigned APIPA address. An IIS server malfunction would affect the web service itself, not the client's local IP configuration. An IDS misconfiguration also would not normally result in a 169.254 address on the host.
The output clearly indicates a DHCP assignment failure, and from the options provided, address pool exhaustion is the best match.
NEW QUESTION # 564
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