CompTIA CompTIA Certifications N10-008 Questions & Answers

• Question 471:

  A company is opening a new building on the other side of its campus. The distance from the closest building to the new building is 1,804ft (550m). The company needs to connect the networking equipment in the new building to the other buildings on the campus without using a repeater. Which of the following transceivers should the company use?

  A. 10GBASE-SW

  B. 10GBASE-LR

  C. 10GBASE-LX4 over multimode fiber

  D. 10GBASE-SR

  Correct Answer: B

  10GBASE-SW (MMF 984ft)

  10GBASE-LR (SMF 6 Miles)

  10GBASE-LX4 over multimode fiber (MMF 984ft)

  10GBASE-SR (MMF 1000 ft)

• Question 472:

  A technician uses a badge to enter a security checkpoint on a corporate campus. An unknown individual quickly walks in behind the technician without speaking. Which of the following types of attacks did the technician experience?

  A. Tailgating

  B. Evil twin

  C. On-path

  D. Piggybacking

  Correct Answer: A

  Tailgating is a type of physical security attack where an unauthorized person follows an authorized person into a restricted area without their consent or knowledge. Tailgating can allow an attacker to bypass security measures and gain access to sensitive information or resources. In this scenario, the technician experienced tailgating when the unknown individual walked in behind the technician without speaking. Piggybacking is similar to tailgating, but it involves the consent or cooperation of the authorized person. Evil twin is a type of wireless network attack where an attacker sets up a rogue access point that mimics a legitimate one. On-path is a type of network attack where an attacker intercepts and modifies traffic between two parties. References: CompTIA Network+ Certification Exam Objectives Version 7.0 (N10-007), Objective 3.2: Given a scenario, use appropriate network hardening techniques.

• Question 473:

  A fiber patch cable, which was being stored in an unsecure telecommunications closet with janitorial supplies, was damaged and caused an outage. A network technician replaced the broken cable with a new cable from a sealed bag. However, this solution did not resolve the outage. Which of the following is the MOST likely explanation?

  A. Incorrect pinout

  B. Incorrect transceivers

  C. Reversed transmit and receive

  D. Dirty optical cables

  Correct Answer: C

  Reference: https://www.flukenetworks.com/blog/cabling-chronicles/b-c-s-fiber-polarity

• Question 474:

  A customer called the help desk to report a network issue. The customer recently added a hub between the switch and the router in order to duplicate the traffic flow to a logging device. After adding the hub, all the other network components that were connected to the switch slowed more than expected. Which of the following is the MOST likely cause of the issue?

  A. Duplex mismatch

  B. Flow control failure

  C. STP malfunction

  D. 802.1Q disabled

  Correct Answer: A

  A duplex mismatch is a situation where two devices on a network have different duplex settings, such as full-duplex or half-duplex. Full-duplex means that a device can send and receive data simultaneously, while half-duplex means that a device can only send or receive data at a time. A duplex mismatch can cause performance issues, such as collisions, errors, or slow throughput. In this scenario, the customer added a hub between the switch and the router. A hub is a device that operates at half-duplex and broadcasts all traffic to all ports. A switch and a router are devices that operate at full-duplex and forward traffic to specific ports. Therefore, adding a hub between the switch and the router can cause a duplex mismatch and slow down all the other network components that were connected to the switch. References: https://www.comparitech.com/net-admin/hub-vs-switch-vs-router/ https://www.cisco.com/c/en/us/support/docs/lan-switching/ethernet/10561-3.html

• Question 475:

  An engineer is designing a network topology for a company that maintains a large on-premises private cloud. A design requirement mandates internet-facing hosts to be partitioned off from the internal LAN and internal server IP ranges. Which of the following defense strategies helps meet this requirement?

  A. Implementing a screened subnet

  B. Deploying a honeypot

  C. Utilizing network access control

  D. Enforcing a Zero Trust model

  Correct Answer: A

  A screened subnet is a network segment that is isolated from both the internal LAN and the Internet by firewalls. A screened subnet can be used to host internet- facing hosts such as web servers, email servers, or DNS servers. A screened

  subnet provides an additional layer of security and prevents direct access to the internal network from the Internet.

  References: Network+ Study Guide Objective 3.1: Explain the purposes and use cases for advanced networking devices.

• Question 476:

  An IT technician installs five old switches in a network. In addition to the low port rates on these switches, they also have improper network configurations. After three hours, the network becomes overwhelmed by continuous traffic and eventually shuts down. Which of the following is causing the issue?

  A. Broadcast storm

  B. Collisions

  C. IP settings

  D. Routing loops

  Correct Answer: A

  A broadcast storm is a situation where a network is flooded with broadcast packets, which are sent to all devices on the network. This can consume bandwidth, cause congestion, and degrade performance. A broadcast storm can be caused by improper network configurations, such as loops or misconfigured switches. In this scenario, the old switches may have created loops or failed to filter broadcast packets, resulting in a broadcast storm that overwhelmed the network. References: CompTIA Network+ Certification Exam Objectives Version 7.0 (N10-007), Objective 2.4: Given a scenario, use appropriate software tools to troubleshoot connectivity issues.

• Question 477:

  An organization would like to implement a disaster recovery strategy that does not require a facility agreement or idle hardware. Which of the following strategies MOST likely meets the organization's requirements?

  A. Cloud site

  B. Cold site

  C. Warm site

  D. Hot site

  Correct Answer: A

  They want no binding contract with a building and they want no hardware, therefore Cloud is the best and only option the company wants.

• Question 478:

  A network technician is working at a new office location and needs to connect one laptop to another to transfer files. The laptops are newer models and do not have Ethernet ports. Access points are not available either. Which of the following types of wireless network SSIDs does the network technician need to configure to be able to connect the laptops together?

  A. Independent Basic Service Set

  B. Extended Service Set

  C. Distribution System Service

  D. Basic Service Set

  Correct Answer: A

• Question 479:

  Many IP security cameras use RTSP to control media playback. Which of the following default transport layer port numbers does RTSP use?

  A. 445

  B. 554

  C. 587

  D. 5060

  Correct Answer: B

  RTSP stands for Real Time Streaming Protocol and is an application-level network protocol designed for controlling media playback on streaming media servers. RTSP uses the default transport layer port number 554 for both TCP and

  UDP1. Port 445 is used for SMB (Server Message Block), a protocol for file and printer sharing. Port 587 is used for SMTP (Simple Mail Transfer Protocol), a protocol for sending email messages. Port 5060 is used for SIP (Session Initiation

  Protocol), a protocol for initiating and managing multimedia sessions.

  References:

  Real Time Streaming Protocol - Wikipedia (https://en.wikipedia.org/wiki/Real_Time_Streaming_Protocol)

• Question 480:

  A non-employee was able to enter a server room. Which of the following could have prevented this from happening?

  A. A security camera

  B. A biometric reader

  C. OTP key fob

  D. Employee training

  Correct Answer: B