CompTIA CompTIA Certifications N10-008 Questions & Answers

• Question 681:

  A company's primary ISP is experiencing an outage. However, the network administrator notices traffic continuing to flow through a secondary connection to the same ISP. Which of the following BEST describes this configuration?

  A. Diverse paths

  B. Load balancing

  C. Multipathing

  D. Virtual Router Redundancy Protocol

  Correct Answer: A

  Diverse paths, also known as path diversity, refers to the use of multiple network paths to ensure redundancy and high availability in case of network failures or outages. In this scenario, the company has set up a secondary connection to the same ISP to provide an alternate path for traffic when the primary connection fails. This allows the traffic to continue to flow without interruption, minimizing downtime and maximizing network uptime.

• Question 682:

  During the troubleshooting of an E1 line, the point-to-point link on the core router was accidentally unplugged and left unconnected for several hours. However, the network management team was not notified. Which of the following could have been configured to allow early detection and possible resolution of the issue?

  A. Traps

  B. MIB

  C. OID

  D. Baselines

  Correct Answer: A

  Traps are unsolicited messages sent by network devices to a network management system (NMS) when an event or a change in status occurs. Traps can help notify the network management team of any issues or problems on the network, such as a link failure or a device reboot. Traps can also trigger actions or alerts on the NMS, such as sending an email or logging the event. MIB stands for Management Information Base and is a database of information that can be accessed and managed by an NMS using SNMP (Simple Network Management Protocol). OID stands for Object Identifier and is a unique name that identifies a specific variable in the MIB. Baselines are measurements of normal network performance and behavior that can be used for comparison and analysis. References: CompTIA Network+ Certification Exam Objectives Version 7.0 (N10-007), Objective 2.5: Given a scenario, use remote access methods.

• Question 683:

  A desktop support department has observed slow wireless speeds for a new line of laptops using the organization's standard image. No other devices have experienced the same issue. Which of the following should the network administrator recommend troubleshooting FIRST to resolve this issue?

  A. Increasing wireless signal power

  B. Installing a new WAP

  C. Changing the protocol associated to the SSID

  D. Updating the device wireless drivers

  Correct Answer: D

  Wireless drivers can affect the performance and compatibility of your wireless connection5. If only a new line of laptops using the organization's standard image has experienced slow wireless speeds, it could be that their wireless drivers are outdated or incompatible with the network. Updating the device wireless drivers could resolve this issue. Wireless drivers play an important role in the performance of a wireless connection, as they control how the device interacts with the wireless network. If the laptops in question are using an outdated version of the wireless driver, it could be causing the slow speeds. The network administrator should recommend updating the device wireless drivers first to see if this resolves the issue.

• Question 684:

  A coffee shop owner hired a network consultant to provide recommendations for installing a new wireless network. The coffee shop customers expect high speeds even when the network is congested. Which of the following standards should the consultant recommend?

  A. 802.11ac

  B. 802.11ax

  C. 802.11g

  D. 802.11n

  Correct Answer: B

  802.11ax is the latest and most advanced wireless standard, providing higher speeds, lower latency, and more capacity than previous standards. It also supports OFDMA, which allows multiple devices to share a channel and reduce congestion. The other options are older standards that have lower bandwidth, range, and efficiency than 802.11ax. Therefore, 802.11ax is the best option for the coffee shop owner who wants to provide high speeds even when the network is congested.

• Question 685:

  Users are reporting intermittent Wi-Fi connectivity in specific parts of a building. Which of the following should the network administrator check FIRST when troubleshooting this issue? (Select TWO).

  A. Site survey

  B. EIRP

  C. AP placement

  D. Captive portal

  E. SSID assignment

  F. AP association time

  Correct Answer: AC

  The two things the network administrator should check FIRST when troubleshooting intermittent WiFi connectivity issues in specific parts of a building are:

  1.

  Site survey: This is important to check because it provides information about the wireless coverage area, signal strength, and potential sources of interference, which can help to identify areas of weak or unstable signal.

  2.

  AP placement: This is also important to check because access point placement can greatly impact the WiFi coverage and signal strength. Incorrect placement, such as access points placed too far apart, can lead to poor coverage or areas with no coverage at all.

• Question 686:

  A company wants to invest in new hardware for the core network infrastructure. The management team requires that the infrastructure be capable of being repaired in less than 60 minutes if any major part fails. Which of the following metrics is MOST likely associated with this requirement?

  A. RPO

  B. MTTR

  C. FHRP

  D. MTBF

  Correct Answer: B

  MTTR is directly related to how quickly a system can be repaired if any major part fails3. The management team requires that the infrastructure be capable of being repaired in less than 60 minutes, which means they have a low MTTR requirement. MTTR stands for Mean Time To Repair and is a metric used to measure the average amount of time it takes to repair a failed component or system. In this case, the requirement is for the infrastructure to be capable of being repaired in less than 60 minutes if any major part fails, which means the MTTR should be less than 60 minutes.

• Question 687:

  A network team is getting reports that air conditioning is out in an IDF. The team would like to determine whether additional network issues are occurring. Which of the following should the network team do?

  A. Confirm that memory usage on the network devices in the IDF is normal.

  B. Access network baseline data for references to an air conditioning issue.

  C. Verify severity levels on the corporate syslog server.

  D. Check for SNMP traps from a network device in the IDF.

  E. Review interface statistics looking for cyclic redundancy errors.

  Correct Answer: D

  "Baselines play an integral part in network documentation because they let you monitor the network's overall performance. In simple terms, a baseline is a measure of performance that indicates how hard the network is working and where network resources are spent. The purpose of a baseline is to provide a basis of comparison. For example, you can compare the network's performance results taken in March to results taken in June, or from one year to the next. More commonly, you would compare the baseline information at a time when the network is having a problem to information recorded when the network was operating with greater efficiency. Such comparisons help you determine whether there has been a problem with the network, how significant that problem is, and even where the problem lies."

• Question 688:

  A network administrator is configuring logging on an edge switch. The requirements are to log each time a switch port goes up or down. Which of the following logging levels will provide this information?

  A. Warnings

  B. Notifications

  C. Alert

  D. Errors

  Correct Answer: B

  Notifications are the lowest logging level and will provide the desired information regarding switch port up/down activity. According to the CompTIA Network+ Study Manual, notifications "are used for logging normal activities, such as port up/ down events, link changes, and link flaps."

• Question 689:

  Given the following Information:

  

  Which of the following would cause performance degradation between PC A and PC B'?

  A. Attenuation

  B. Interference

  C. Decibel loss

  D. Incorrect pinout

  Correct Answer: A

  "Attenuation is the weakening of a signal as it travels long distances and is caused when wave signals travel too far without help. As a cable run gets longer, the attenuation increases, and the signal becomes weaker."

• Question 690:

  Which of the following is most likely to have the HIGHEST latency while being the most accessible?

  A. Satellite

  B. DSL

  C. Cable

  D. 4G

  Correct Answer: A

  Satellite is most likely to have the HIGHEST latency while being the most accessible. While satellite internet may be available in remote or rural areas where other options like DSL or cable are not available, the signal has to travel long distances to reach the satellite in orbit and then back down to Earth, resulting in high latency.