N10-008 practice questions 671–680

1. Question 671 · 871 in bank

   Which of the following should be configured on a separate network segment without access to the primary company network when security is a concern?

   • AEmail server
   • BIoT devices
   • CWireless LAN controller
   • DVoice gateway

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   Answer: B

   Explanation

   B. IoT devices Internet of Things (IoT) devices often have security vulnerabilities and may be targeted by attackers. Placing them on a separate network segment, isolated from the primary company network, can help contain potential security breaches and limit the impact of any compromises.

   Source: Adapted from community discussion — subaie503

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2. Question 672 · 871 in bank

   A firewall administrator observes log entries of traffic being allowed to a web server on port 80 and port 443. The policy for this server is to only allow traffic on port 443. The firewall administrator needs to investigate how this change occurred to prevent a reoccurrence. Which of the following should the firewall administrator do next?

   • AConsult the firewall audit logs.
   • BChange the policy to allow port 80.
   • CRemove the server object from the firewall policy.
   • DCheck the network baseline.

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   Answer: A

   Explanation

   A. Consult the firewall audit logs. Consulting the firewall audit logs would be the most appropriate next step for the firewall administrator. These logs typically record all changes to firewall rules and policies, including who made the changes and when they were made. By reviewing the audit logs, the administrator can determine how the change allowing traffic on port 80 occurred and take steps to prevent a reoccurrence, such as tightening access controls or implementing stricter change management procedures.

   Source: Adapted from community discussion — subaie503

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3. Question 673 · 871 in bank

   A customer hired a network consultant to provide advice on the installation of new wireless access. The customer has several devices that operate in either the 5.0GHz range or the 2.4GHz range, and the best performance must be available. Which of the following standards should the technician suggest?

   • A802.11a
   • B802.11b
   • C802.11g
   • D802.11n

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   Answer: D

   Explanation

   D. 802.11n 802.11n operates in both the 2.4GHz and 5.0GHz frequency bands, providing support for multiple-input multiple-output (MIMO) technology, which improves performance and range. It offers higher data rates and improved reliability compared to earlier standards like 802.11a, 802.11b, and 802.11g. Therefore, it would be the most suitable option for the customer's requirements.

   Source: Adapted from community discussion — subaie503

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4. Question 674 · 871 in bank

   A technician is assisting a user who cannot connect to a network resource. The technician first checks for a link light. According to troubleshooting methodology, this is an example of:

   • Ausing a bottom-to-top approach.
   • Bestablishing a plan of action.
   • Cdocumenting a finding.
   • Dquestioning the obvious.

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   Answer: D

   Explanation

   Those questions aim to trick you - and to make you fail. It all about the money. _________ This stage may require significant research on your part. Vendor documentation, your organization’s own documentation and a good old-fashioned Google search may all be required to provide the basis for your theory. Specific steps here may include: Questioning the obvious Considering multiple approaches, including top-to-bottom or bottom-to-top for layered technologies (such as networks) One of the main issues that I’ve observed with newer troubleshooters is failing to question the obvious. In my classes, I rephrase this as “start simple and work toward the complex.” Yes, I am aware that operating systems, networks and cloud deployments are all very complex. However, that does not mean that your issue is complex. I have found over the years that careful note-taking is important at this point. Your notes can include data copied from websites, web URLs, suggestions from your team members, etc. ________ https://www.comptia.org/blog/troubleshooting-methodology

   Source: Adapted from community discussion — veli_117

   References

   • comptia.org documentation

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5. Question 675 · 871 in bank

   A technician is expanding a wireless network and adding new access points. The company requires that each access point broadcast the same SSID. Which of the following should the technician implement for this requirement?

   • AMIMO
   • BRoaming
   • CChannel bonding
   • DExtended service set

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   Answer: D

   Explanation

   D. Extended service set In a scenario where multiple access points need to broadcast the same SSID to provide seamless wireless connectivity across an area, the technician should implement an Extended Service Set (ESS). An ESS is a group of interconnected BSSs (Basic Service Sets), where each BSS is represented by an access point.

   Source: Adapted from community discussion — subaie503

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6. Question 676 · 871 in bank

   Which of the following DNS records maps an alias to a true name?

   • AAAAA
   • BNS
   • CTXT
   • DCNAME

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   Answer: D

   Explanation

   D. CNAME A Canonical Name (CNAME) record in DNS maps an alias (or canonical name) to a true name (or canonical name). This allows a domain name to be an alias for another domain name. When a DNS lookup is performed on the alias, the CNAME record redirects the query to the true name specified in the record. This is commonly used for creating aliases for hosts or domains. Therefore, option D, CNAME, is the correct answer.

   Source: Adapted from community discussion — subaie503

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7. Question 677 · 871 in bank

   Select 2

   Which of the following combinations of single cables and transceivers will allow a server to have 40GB of network throughput? (Choose two.)

   • ASFP+
   • BSFP
   • CQSFP+
   • DMultimode
   • ECat 6a
   • FCat 5e

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   Answer: CD

   Explanation

   C. QSFP+ D. Multimode QSFP+ (Quad Small Form-factor Pluggable Plus) transceivers are designed for high-density, high-speed networking applications such as 40 Gigabit Ethernet. They can support data rates of 40 Gbps, making them suitable for achieving 40GB of network throughput. Multimode fiber optic cable is often used with QSFP+ transceivers for short-range data transmission, such as within data centers or between buildings in close proximity. Multimode fiber can support the high data rates required for 40GB of network throughput over relatively short distances, typically up to 100 meters, depending on the specific type of multimode fiber used

   Source: Adapted from community discussion — subaie503

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8. Question 678 · 871 in bank

   A global company has acquired a local company. The companies are geographically separate. The IP address ranges for the two companies are as follows: • Global company: 10.0.0.0/16 • Local company: 10.0.0.0/24 Which of the following can the network engineer do to quickly connect the two companies?

   • AAssign static routing to advertise the local company's network
   • BAssign an overlapping IP address range to both companies.
   • CAssign a new IP address range to the local company.
   • DAssign a NAT range to the local company.

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   Answer: C

   Explanation

   C. Assign a new IP address range to the local company. Given that both companies are currently using overlapping IP address ranges, the most straightforward and effective solution to quickly connect the two companies without causing IP address conflicts would be to reassign a new, non-overlapping IP address range to the local company. This change would ensure that both companies can communicate without any IP address conflicts or the need for complex routing rules to manage the overlap.

   Source: Adapted from community discussion — subaie503

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9. Question 679 · 871 in bank

   A user is unable to navigate to a website because the provided URL is not resolving to the correct IP address. Other users are able to navigate to the intended website without issue. Which of the following is most likely causing this issue?

   • AHosts file
   • BSelf-signed certificate
   • CNameserver record
   • DIP helper

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   Answer: A

   Explanation

   The answer is A. Hosts file If the other users weren't able to access the site, you could argue it's C. But the problem is specific to this user's environment. Host files can be manually configured to override DNS resolution and if it contains an old entry for that URL, then the user won't be able to access the site because the URL is mapping to incorrect IP address.

   Source: Adapted from community discussion — YorkieTeaTime

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10. Question 680 · 871 in bank

    A technician completed troubleshooting and was able to fix an issue. Which of the following is the best method the technician can use to pass along the exact steps other technicians should follow in case the issue arises again?

    • AUse change management to build a database.
    • BSend an email stating that the issue is resolved.
    • CDocument the lessons learned.
    • DClose the ticket and inform the users.

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    Answer: C

    Explanation

    They actually got it right on this question. The answer is within the question " the best method the technician can use to pass along the exact steps other technicians should follow in case the issue arises again?" That is the definition of the lessons learned document. A guide on how to fix certain issues that were dealt by other technicians in the past!

    Source: Adapted from community discussion — 5H4K1R

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N10-008 practice, question 671. 871 questions available.