After extremely high temperatures cause a power outage, the servers automatically shut down, even though the UPSs for the servers still have hours of battery life. Which of the following should a technician recommend?
A. Include backup power for air-conditioning units.
B. Configure door locks to automatically lock during power outages.
C. Increase UPS battery size.
D. Add an IoT-enabled thermostat.
Show Answer
Correct Answer: A
Explanation: The servers still have UPS power, but if the building loses power, the air-conditioning may stop unless it is also backed up. Rising temperatures can trigger thermal protection, causing servers to shut down despite available UPS battery capacity. Providing backup power for the cooling system prevents overheating during outages.
Question 202
Which of the following actions should be taken as part of the first step of the troubleshooting methodology?
A. Conduct tests to verify ideas.
B. Handle multiple problems individually.
C. Create a theory about the possible root cause.
D. Use a top-down approach.
Show Answer
Correct Answer: B
Explanation: In the CompTIA troubleshooting methodology, step 1 is to identify the problem. One of the activities included in this step is handling multiple problems individually so each issue can be isolated and diagnosed. Conducting tests belongs to verification, creating a theory is step 2, and using a top-down approach is a technique used while establishing a theory of probable cause.
Question 203
Which of the following is enforced through legislation?
A. AUP
B. GDPR
C. Code of conduct
D. EULA
Show Answer
Correct Answer: B
Explanation: GDPR is a legal regulation established through legislation and is enforceable by law. An Acceptable Use Policy (AUP) is an organizational policy, a code of conduct is typically an internal or professional guideline, and a EULA is a contractual agreement between a software provider and user rather than legislation.
Question 204
Users in one building on the campus network report very slow network access. A network technician logs in to the router to see if there are any errors associated with traffic to and from that particular building. Which of the following commands will the technician most likely run?
A. show arp
B. show config
C. show route
D. show interface
Show Answer
Correct Answer: D
Explanation: The 'show interface' command displays interface status, packet counters, CRC/input/output errors, drops, bandwidth utilization, and other statistics that are directly used to diagnose slow network performance or interface problems affecting a specific building. The other commands display ARP entries, configuration, or routing information rather than interface error statistics.
Question 205
A user is unable to reach a website and wants to verify its IP information. Which of the following tools is used to resolve the authoritative server to its FQDN?
A. ipconfig
B. arp
C. nslookup
D. ping
Show Answer
Correct Answer: C
Explanation: nslookup is the DNS query tool used to resolve fully qualified domain names (FQDNs) to IP addresses and can query authoritative DNS information. ipconfig displays/configures IP settings, arp displays/manages the ARP cache, and ping tests reachability rather than resolving authoritative DNS information.
Question 206
Which of the following most directly secures sensitive information on a network?
A. Data-in-transit encryption
B. Principle of least privilege
C. Role-based access controls
D. Multifactor authentication
Show Answer
Correct Answer: A
Explanation: Data-in-transit encryption most directly secures sensitive information on a network by protecting the confidentiality and integrity of data as it travels between systems. The other options primarily control access to systems or resources rather than directly protecting the network traffic itself.
Question 207
Computer A cannot reach Computer B in this network:
Which of the following will resolve the issue?
A. Set up link aggregation between Switch A and Switch B on Gi0/9 and Gi0/10.
B. Configure spanning tree on Switch A and Switch
C. Establish a trunk connection between Switch A and Switch B.
D. Put Computer A and Computer B in the same /24 subnet.
Show Answer
Correct Answer: C
Explanation: If the two switches are connected by an access link, only a single VLAN traverses the inter-switch connection. Configuring the link as a trunk allows the required VLAN traffic to pass between the switches, enabling hosts in the same VLAN on different switches to communicate. Link aggregation does not address VLAN carriage, spanning tree prevents loops rather than fixing VLAN transport, and placing hosts in the same IP subnet does not solve a missing Layer 2 path.
Question 208
A network administrator is migrating the existing phone system to VoIP. The vendor requires a separate voice network for the phones to function. Which of the following technologies should the administrator use to allow for this configuration?
A. VLAN
B. VXLAN
C. VPN
D. VPC
Show Answer
Correct Answer: A
Explanation: A VLAN (Virtual LAN) creates a separate logical Layer 2 network over the same physical switching infrastructure. VoIP deployments commonly use a dedicated voice VLAN to isolate voice traffic, simplify QoS, and meet vendor requirements for a separate voice network. VXLAN is an overlay technology for large-scale virtualized networks, VPN provides secure remote connectivity, and VPC is a cloud networking construct.
Question 209
A network administrator is redesigning a wireless network in which corporate and guest users share a single SSID that is configured with WPA2 PSK. Which of the following capabilities should be configured in order to improve security? (Choose two.)
A. Wi-Fi Protected Access
B. New SSID for contractors
C. Password authentication
D. Wired Equivalent Privacy
E. Captive portal
F. Wi-Fi Protected Setup
Show Answer
Correct Answer: B, E
Explanation: The best security improvement is to separate user populations and apply different access controls. Creating a separate SSID for contractors/guests isolates them from corporate users, and a captive portal provides guest access control, authentication/acceptance, and policy enforcement. WPA2-PSK already relies on a shared password, so 'Password authentication' does not add a new capability. WPA and WEP are older or weaker technologies, and WPS reduces security.
Question 210
An organization is concerned about rogue devices connecting to the network and wants the network team to implement a solution. Which of the following types of filtering should the network team use to address this concern?
A. MAC
B. Content
C. URL
D. IP
Show Answer
Correct Answer: A
Explanation: MAC filtering is used to permit or deny network access based on a device's MAC (hardware) address, helping prevent unauthorized or rogue devices from connecting. Content and URL filtering control web access, while IP filtering operates on IP addresses rather than the device's hardware identity.
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