CompTIA CompTIA Certifications N10-008 Questions & Answers

• Question 831:

  Which of the following topologies requires the MOST connections when designing a network?

  A. Mesh

  B. Star

  C. Bus

  D. Ring

  Correct Answer: A

  Mesh topology requires the MOST connections when designing a network as it uses a point-to-point connection between every pair of devices in the network, resulting in a large number of connections.

• Question 832:

  A corporate client is experiencing global system outages. The IT team has identified multiple potential underlying causes throughout the enterprise Each team member has been assigned an area to trouble shoot. Which of the following approaches is being used?

  A. Divide-and-conquer

  B. Top-to-bottom

  C. Bottom-to-top

  D. Determine if anything changed

  Correct Answer: A

  The "divide-and-conquer" approach is a problem-solving strategy where a large, complex problem is broken down into smaller, more manageable parts. In this case, the IT team has identified multiple potential underlying causes for the global system outages, and each team member has been assigned an area to troubleshoot. This is an example of the divide-and-conquer approach, as the IT team is breaking down the large problem of global system outages into smaller, more manageable parts that can be investigated and resolved individually.

• Question 833:

  To access production applications and data, developers must first connect remotely to a different server From there, the developers are able to access production data. Which of the following does this BEST represent?

  A. A management plane

  B. A proxy server

  C. An out-of-band management device

  D. A site-to-site VPN

  E. A jump box

  Correct Answer: E

  A jump box (also known as a jump server or a bastion host) is a dedicated server or virtual machine that provides secure access to other systems on a network. In the scenario described in the question, the jump box is the server that the developers connect to remotely in order to access production applications and data.

  The purpose of the jump box is to provide an additional layer of security by restricting direct access to the production servers. This helps to protect the production servers from potential security threats that could be introduced through the developers' remote connections.

• Question 834:

  A network technician needs to determine the IPv6 address of a malicious website. Which of the following record types would pre-ride this information?

  A. A

  B. AAAA

  C. CNAME

  D. PTR

  Correct Answer: B

  The IPv6 address of a website can be determined by looking up the website's AAAA (quad-A) record.

  A AAAA record is a type of DNS record that maps a domain name to an IPv6 address. It is used to associate a hostname with an IPv6 address in the DNS system. When a client computer performs a DNS lookup for a hostname, it will query the DNS server for the hostname's AAAA record to find the corresponding IPv6 address.

  An A record, CNAME record and PTR record are used for different purposes. An A record maps a domain name to an IPv4 address, a CNAME record maps a domain name to another domain name and a PTR record is used to map an IP address to a hostname, it's used for reverse DNS lookups. So, in this case, to determine the IPv6 address of a malicious website, the technician should look for the AAAA record.

• Question 835:

  A network engineer receives the following when connecting to a switch to configure a port:

  telnet 10.1.200.1

  Connecting to 10.1.200.1..Could not open connection to the host, on port 23: Connect failed.

  Which of the following is the MOST likely cause for the failure?

  A. The network engineer is using the wrong protocol

  B. The network engineer does not have permission to configure the device

  C. SNMP has been secured with an ACL

  D. The switchport the engineer is trying to configure is down

  Correct Answer: A

  Syslog server messages would provide the most detailed data in an investigation to determine how the firewall was compromised. Syslog is a standard protocol used to send system log or event messages to a specific server, allowing administrators to centralize and monitor log data. In this scenario, the syslog server would have recorded all firewall configuration and activity data prior to the network outage caused by the attack.

  The MIB of the firewall, network baseline reports, and NetFlow aggregate data could also provide valuable information, but are less likely to be as detailed as the syslog data.

• Question 836:

  Which of the following is the primary function of the core layer of the three-tiered model?

  A. Routing

  B. Repeating

  C. Bridging

  D. Switching

  Correct Answer: A

  https://www.omnisecu.com/cisco-certified-network-associate-ccna/three-tier-hierarchical-network-model.php

  Core Layer consists of biggest, fastest, and most expensive routers with the highest model numbers and Core Layer is considered as the back bone of networks. Core Layer routers are used to merge geographically separated networks. The Core Layer routers move information on the network as fast as possible. The switches operating at core layer switches packets as fast as possible.

• Question 837:

  A technician performed a manual reconfiguration of a firewall, and network connectivity was reestablished. Some connection events that were previously sent to a syslog server are no longer being generated by the flrewal. Which of Vie following should the technician perform to fix the Issue?

  A. Adjust the proper logging level on the new firewall.

  B. Tune the filter for logging the severity level on the syslog server.

  C. Activate NetFlow traffic between the syslog server and the firewall

  D. Restart the SNMP service running on the syslog server.

  Correct Answer: A

  Logging level is a setting that determines what types of events are recorded by a device and sent to a syslog server. Different logging levels have different severity levels, ranging from emergency to debug. If the technician performed a manual reconfiguration of the firewall, it is possible that the logging level was changed or reset to a lower level that does not include the connection events that were previously sent to the syslog server. To fix the issue, the technician should adjust the proper logging level on the new firewall to match the desired level of detail and severity for the connection events. References: Network+ Study Guide Objective 3.4: Explain common scanning, monitoring and patching processes and summarize their expected outputs. Subobjective: Syslog.

• Question 838:

  A technician is troubleshooting reports that a networked printer is unavailable. The printer's IP address is configured with a DHCP reservation, but the address cannot be pinged from the print server in the same subnet. Which of the following is MOST likely the cause of me connectivity failure?

  A. Incorrect VLAN

  B. DNS failure

  C. DHCP scope exhaustion

  D. Incorrect gateway

  Correct Answer: A

• Question 839:

  At which of the following OSI model layers does an IMAP client run?

  A. Layer 2

  B. Layer 4

  C. Layer 6

  D. Layer 7

  Correct Answer: D

  An IMAP client runs at Layer 7, the application layer, of the OSI model. The OSI model is a framework used to understand how data is transmitted over a network. It consists of seven layers, each of which performs a specific function. Layer 7, the application layer, is the top layer of the OSI model. It is the layer at which application programs, such as an IMAP client, operate. The application layer is responsible for providing services to the application programs and for providing the interface between the application programs and the network.

• Question 840:

  A network technician receives a support ticket about an employee who has misplaced a company-owned cell phone that contains private company information. Which of the following actions should the network technician take to prevent data loss?

  A. Disable the user account.

  B. Lock the phone.

  C. Turn off the service.

  D. Execute remote wipe.

  Correct Answer: D

  Executing a remote wipe is the only way to ensure that company data is not released into the public or the wrong hands.

  Other answers will not release the data in the hard drive of the phone. Any attacker can take out the hard drive of the phone and extract the data.