CompTIA N10-008 Online Practice Questions and Exam Preparation

CompTIA N10-008 Online Questions & Answers

• Question 1031:

  A company needs to virtualize a replica of its internal physical network without changing the logical topology and the way that devices behave and are managed. Which of the following technologies meets this requirement?

  A. NFV
  B. SDWAN
  C. VIP
  D. MPLS
  A. NFV

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  Explanation/Reference:

  Network Function Virtualization (NFV) is a technology that allows for the virtualization of a replica of a network's physical topology and the way it behaves without changing the logical topology and the way that devices are managed. NFV allows for the virtualization of network functions such as routers, firewalls, and switches, resulting in increased flexibility and scalability. This makes NFV an ideal technology for companies looking to virtualize a replica of their internal physical network.

• Question 1032:

  A company has wireless APS that were deployed with 802.11g. A network engineer has noticed more frequent reports of wireless performance issues during the lunch hour in comparison to the rest of the day. The engineer thinks bandwidth consumption will increase while users are on their breaks, but network utilization logs do not show increased bandwidth numbers. Which Of the following would MOST likely resolve this issue?

  A. Adding more wireless APS
  B. Increasing power settings to expand coverage
  C. Configuring the APS to be compatible with 802.1la
  D. Changing the wireless channel used
  C. Configuring the APS to be compatible with 802.1la

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  Explanation/Reference:

  802.11g is an older wireless standard that operates in the 2.4 GHz frequency band and has a maximum data rate of 54 Mbps. 802.11a is a newer wireless standard that operates in the 5 GHz frequency band and has a maximum data rate of 54 Mbps. By configuring the APS to be compatible with 802.11a, the network engineer can reduce interference and congestion in the 2.4 GHz band and improve wireless performance. References: Network+ Study Guide Objective 2.5: Implement network troubleshooting methodologies

• Question 1033:

  Several users from the same building are reporting connectivity issues. The SFP at that building's IDF switch is showing a link light, but there is no link light to the corresponding switch's SFP at the MDF. Which of the following is the MOST likely cause?

  A. A crossover cable is being used.
  B. DB loss is too high on all strands.
  C. Only TX or RX strand is working.
  D. TX and RX are reversed.
  C. Only TX or RX strand is working.

• Question 1034:

  A network administrator would like to enable NetFlow on a Layer 3 switch but is concerned about how the feature may impact the switch. Which of the following metrics should the administrator graph using SNMP to BEST measure the feature's impact?

  A. CPU usage
  B. Temperature
  C. Electrical consumption
  D. Bandwidth usage
  A. CPU usage

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  Explanation/Reference:

  CPU usage would be one of the key metrics to measure the impact of NetFlow on a Layer 3 switch as it would indicate if the switch is experiencing any increased processing workload due to the feature being enabled. It would be a good idea to also monitor the memory usage of the switch to ensure that it does not run out of memory when NetFlow is enabled.

  Reference: http://etutorials.org/Networking/network+management/Part+II+Implementations+on+the+Cisco+Devices/Chapter+7.+NetFlow/Deployment+Guidelines/

• Question 1035:

  A national cable company providing TV, telephone, and Internet service to home users over its IP network, has been tracking a large increase of network bandwidth due to P2P file sharing. Which of the following should the company deploy to ensure excellent TV and telephone service?

  A. QoS
  B. Load balancing
  C. High availability
  D. Fiber optics
  A. QoS

• Question 1036:

  A technician is troubleshooting intermittent connectivity between devices and viewing the following syslog entries from a switch:

  

  Which of the following are these entries indicative of?

  A. DDoS attack
  B. Jitter
  C. Latency
  D. Link flapping
  D. Link flapping

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  Explanation/Reference:

  The syslog entries are indicative of link flapping, which is when a switch port rapidly transitions between the up and down states. This can cause intermittent connectivity issues, network instability, and increased CPU utilization on the switch. Link flapping can be caused by various factors, such as faulty cables, misconfigured interfaces, duplex mismatches, or network attacks. To troubleshoot link flapping, the technician should check the physical layer, verify the interface settings, and monitor the network traffic for anomalies.

• Question 1037:

  A new network Technician is responsible for bringing a building onto the corporate network. The technician is not aware of the proper settings for the new switches. Which of the following should the technician reference to find these settings?

  A. iDF/MDF documentation
  B. Change management plan
  C. Configuration baseline
  D. Standard operating procedures
  C. Configuration baseline

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  Explanation/Reference:

• Question 1038:

  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?

  A. Assign static routing to advertise the local company's network.
  B. Assign an overlapping IP address range to both companies.
  C. Assign a new IP address range to the local company.
  D. Assign a NAT range to the local company.
  C. Assign a new IP address range to the local company.

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  Explanation/Reference:

  Assigning a new IP address range to the local company is the best option to quickly connect the two companies without causing any IP address conflicts or overlaps. This option requires reconfiguring the local company's network devices and updating the routing tables on both sides, but it avoids the need for any NAT or static routing solutions that may introduce additional complexity, cost, or performance issues12

• Question 1039:

  Due to concerns around single points of failure, a company decided to add an additional WAN to the network. The company added a second MPLS vendor to the current MPLS WAN and deployed an additional WAN router at each site. Both MPLS providers use OSPF on the WAN network, and EIGRP is run internally. The first site to go live with the new WAN is successful, but when the second site is activated significant network issues occur. Which of the following is the MOST likely cause for the WAN instability?

  A. A routing loop
  B. Asymmetrical routing
  C. A switching loop
  D. An incorrect IP address
  B. Asymmetrical routing

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  Explanation/Reference:

  Asymmetrical routing is the most likely cause for the WAN instability. When two different routing protocols are used, like OSPF and EIGRP, it can cause asymmetrical routing, which results in traffic being routed differently in each direction. This can lead to instability in the WAN. A CDP neighbor change, a switching loop, or an incorrect IP address are not likely causes for WAN instability.

• Question 1040:

  An administrator wants to host services on the internet using an internal server. The server is configured with an RFC1918 address, and the administrator wants to make the services that are hosted on the server available on one of the company's public IP addresses. Which of the following should the administrator configure to allow this access?

  A. IPv6 tunneling
  B. Virtual IP
  C. Dual stack
  D. EUI-64
  B. Virtual IP

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  Explanation/Reference:

  References

  What is a Virtual IP Address (VIP)? - Definition from Techopedia IPv6 Tunneling - an overview | ScienceDirect Topics Dual Stack Definition [EUI-64 - an overview | ScienceDirect Topics]