CompTIA CompTIA Network+ N10-008 Questions & Answers

• Question 1:

  A network administrator responds to a support ticket that was submitted by a customer who is having issues connecting to a website inside of the company network The administrator verities that the customer could not connect to a website

  using a URL.

  Which of the following troubleshooting steps would be BEST for the administrator to take?

  A. Check for certificate issues

  B. Contact the ISP

  C. Attempt to connect to the site via IP address

  D. Check the NTP configuration.

  Correct Answer: C

  The best option for the administrator to take would be to attempt to connect to the site via IP address. This will help to determine if the issue is related to the website's DNS address or if the site itself is not accessible. Checking for certificate issues may be necessary, but this should be done after the administrator has attempted to connect to the site via IP address. Contacting the ISP is unnecessary since the issue is related to the website inside of the company network, and checking the NTP configuration is not relevant to this issue.

  When a customer is having issues connecting to a website using a URL, one of the first troubleshooting steps a network administrator should take is attempting to connect to the site using the IP address of the website. This will help to determine if the issue is related to a DNS resolution problem or a connectivity problem. If the administrator is able to connect to the website using the IP address, then the issue may be related to a DNS problem. However, if the administrator is still unable to connect, then the issue may be related to a connectivity problem. In either case, further troubleshooting steps will be necessary. Checking for certificate issues or NTP configuration, and contacting the ISP would not be the BEST initial steps in this scenario.

• Question 2:

  Which of the following is an advanced distance vector routing protocol that automates routing tables and also uses some features of link-state routing protocols?

  A. OSPF

  B. RIP

  C. EIGRP

  D. BGP

  Correct Answer: C

  EIGRP is an advanced distance vector routing protocol that is able to automatically update routing tables and also uses features of link-state routing protocols, such as the ability to send updates about the current topology of the network. EIGRP also has the ability to use a variety of algorithms to determine the best route for a packet to take, allowing for more efficient routing across the network.

• Question 3:

  Which of the following is an example of on-demand scalable hardware that is typically housed in the vendor's data center?

  A. DaaS

  B. IaaS

  C. PaaS

  D. SaaS

  Correct Answer: B

• Question 4:

  Which of the following would enable a network technician to implement dynamic routing?

  A. An IPS

  B. A bridge

  C. A Layer 3 switch

  D. A hub

  Correct Answer: C

• Question 5:

  A technician is checking network devices to look for opportunities to improve security. Which of the following toots would BEST accomplish this task?

  A. Wi-Fi analyzer

  B. Protocol analyzer

  C. Nmap

  D. IP scanner

  Correct Answer: C

  Nmap is a tool that can be used to scan and identify network devices and can help identify potential security vulnerabilities. Wi-Fi analyzer is used to analyze wireless networks, protocol analyzers are used to analyze network traffic, and IP scanners are used to discover devices on a network.

• Question 6:

  Which of the following topologies is designed to fully support applications hosted in on- premises data centers, public or private clouds, and SaaS services?

  A. SDWAN

  B. MAN

  C. PAN

  D. MPLS

  Correct Answer: A

  SDWAN (Software Defined Wide Area Network) is a network architecture that enables the deployment of hybrid networks that can fully support applications hosted in on-premises data centers, public or private clouds, and SaaS services. SDWAN uses software-defined networking (SDN) concepts to simplify network management and reduce costs.

• Question 7:

  An engineer needs to verity the external record tor SMTP traffic. The engineer logged in to the server and entered the nslookup command. Which of the following commands should the engineer send before entering the DNS name?

  A. set type=A

  B. is -d company-mail.com

  C. set domain=company.mail.com

  D. set querytype=Mx

  Correct Answer: D

  Using the "set querytype=MX" command in the nslookup utility will allow you to query and retrieve the MX records for a domain. These MX records determine the mail servers responsible for receiving email traffic for that domain. This is directly related to verifying the external records for SMTP traffic, as SMTP is the protocol used for sending and receiving emails.

• Question 8:

  Network traffic is being compromised by DNS poisoning every time a company's router is connected to the internet. The network team detects a non-authorized DNS server being assigned to the network clients and remediates the incident by setting a trusted DNS server, but the issue occurs again after internet exposure. Which of the following best practices should be implemented on the router?

  A. Change the device's default password.

  B. Disable router advertisement guard.

  C. Activate control plane policing.

  D. Disable unneeded network services.

  Correct Answer: A

• Question 9:

  A new office space is being designed. The network switches are up. but no services are running yet A network engineer plugs in a laptop configured as a DHCP client to a switch. Which ol the following IP addresses should be assigned to the laptop?

  A. 10.1.1.1

  B. 169.254.1.128

  C. 172 16 128 128

  D. 192 168.0.1

  Correct Answer: B

  When a DHCP client is connected to a network and no DHCP server is available, the client can automatically configure a link-local address in the 169.254.0.0/16 range using the Automatic Private IP Addressing (APIPA) feature. So, the correct answer is option B, 169.254.1.128. This is also known as an APIPA address. Reference: CompTIA Network+ Study Guide, Exam N10-007, Fourth Edition, by Todd Lammle (Chapter 4: IP Addressing)

• Question 10:

  A company is considering shifting its business to the cloud. The management team is concerned at the availability of the third-party cloud service. Which of the following should the management team consult to determine the promised availability of the cloud provider?

  A. Memorandum of understanding

  B. Business continuity plan

  C. Disaster recovery plan

  D. Service-level agreement

  Correct Answer: D

  A Service-level agreement (SLA) is a document that outlines the responsibilities of a cloud service provider and the customer. It typically includes the agreed-upon availability of the cloud service provider, the expected uptime for the service, and the cost of any downtime or other service interruptions. Consulting the SLA is the best way for the management team to determine the promised availability of the cloud provider. Reference: CompTIA Cloud+ Study Guide, 6th Edition, page 28.