CompTIA CompTIA Certifications N10-008 Questions & Answers

• Question 1141:

  The following instructions were published about the proper network configuration for a videoconferencing device:

  "Configure a valid static RFC1918 address accordingly to your network. Check the option to use a connection over NAT".

  Which of the following is a valid IP address configuration for the device?

  A. FE80::1

  B. 100.64.0.1

  C. 169.254.1.2

  D. 172.19.0.2

  E. 224.0.0.12

  Correct Answer: D

  172.19.0.2 is a valid IP address configuration for the device that uses a static RFC1918 address for the network and allows for a connection over NAT (Network Address Translation). RFC1918 addresses are private IP addresses that are not routable on the public Internet and are used for internal networks. The RFC1918 address ranges are 10.0.0.0/8, 172.16.0.0/12, and 192.168.0.0/16. NAT is a technique that translates private IP addresses to public IP addresses when communicating with external networks, such as the Internet. FE80::1 is an IPv6 link-local address that is not a static RFC1918 address and does not allow for a connection over NAT. 100.64.0.1 is an IPv4 address that belongs to the shared address space range (100.64.0.0/10) that is used for carrier-grade NAT (CGN) between service providers and subscribers, which is not a static RFC1918 address and does not allow for a connection over NAT. 169.254.1.2 is an IPv4 link-local address that is automatically assigned by a device when it cannot obtain an IP address from a DHCP server or manual configuration, which is not a static RFC1918 address and does not allow for a connection over NAT. 224.0.0.12 is an IPv4 multicast address that is used for VRRP (Virtual Router Redundancy Protocol), which is not a static RFC1918 address and does not allow for a connection over NAT.

• Question 1142:

  Which of the following use cases would justify the deployment of an mGRE hub-and-spoke topology?

  A. An increase in network securing using encryption and packet encapsulation

  B. A network expansion caused by an increase in the number of branch locations to the headquarters

  C. A mandatory requirement to increase the deployment of an SDWAN network.

  D. An improvement in network efficiency by increasing the useful packet payload.

  Correct Answer: B

  A network expansion caused by an increase in the number of branch locations to the headquarters

• Question 1143:

  A network administrator needs to extend an organization's network to a nearby building that has unused SMF already installed. The network administrator has decided to create a switch-to-switch uplink. Which of the following standards would be the BEST to use?

  A. 10BASE-T

  B. 100BASE-T

  C. 1000BASE-LX

  D. 1000BASE-SX

  Correct Answer: C

• Question 1144:

  A security team needs to restrict access to a wireless network in a certain area. Which of the following would be used to enforce this restriction?

  A. Geofencing

  B. WPA2-PSK

  C. EAP-TLS

  D. VLAN tagging

  Correct Answer: A

• Question 1145:

  Given the following information:

  

  Which of the following command-line tools would generate this output?

  A. netstat

  B. arp

  C. dig

  D. tracert

  Correct Answer: A

  -

  The "netstat" command displays network connections, routing tables, and network interface statistics.

  -

  The "dig" (Domain Information Groper) command is used for querying the Domain Name System (DNS) to obtain domain name or IP address mapping. -The "arp" (Address Resolution Protocol) command is used to view and manage the ARP cache, which contains mapping information between IP addresses and their corresponding physical (MAC) addresses on a network.

  -

  The "tracert" (or traceroute) command is used to determine the path that packets take from the source device to the destination device on an IP network

• Question 1146:

  Which of the following provides redundancy on a file server to ensure the server is still connected to a LAN even in the event of a port failure on a switch?

  A. NIC teaming

  B. Load balancer

  C. RAID array

  D. PDUs

  Correct Answer: A

  NIC teaming (also known as network interface card teaming or link aggregation) is a technique that allows multiple network interface cards (NICs) to be combined into a single logical interface. By using NIC teaming, the file server can be connected to the network through multiple physical connections, providing redundancy and increasing bandwidth.

  If one of the NICs or ports fails, the remaining NICs can continue to handle network traffic, ensuring that the file server remains connected to the LAN. This helps to improve network reliability and availability, and reduces the risk of downtime.

• Question 1147:

  Which of the following technologies is used to translate one public IP address to multiple private IP addresses?

  A. NAT

  B. ARP

  C. DHCP

  D. DNS

  Correct Answer: A

• Question 1148:

  A systems administrator is running a VoIP network and is experiencing jitter and high latency. Which of the following would BEST help the administrator determine the cause of these issues?

  A. Enabling RADIUS on the network.

  B. Configuring SNMP traps on the network.

  C. Implementing LDAP on the network.

  D. Establishing NTP on the network.

  Correct Answer: B

  -

  Configuring SNMP (Simple Network Management Protocol) traps on the network would BEST help the administrator determine the cause of the jitter and high latency in the VoIP network.

  -

  SNMP traps can provide real-time notifications of network events, such as high utilisation on a network interface or low memory on a device, that can indicate potential problems. By analysing the SNMP traps, the administrator can identify any underlying issues causing the jitter and high latency, such as network congestion, bandwidth constraints, or device failures.

  -

  While NTP (Option D) can help to ensure accurate timing in the network, which is important for VoIP, it would not necessarily help to directly determine the cause of the jitter and high latency issues. The other options, RADIUS (Option A) and LDAP (Option C), are primarily used for authentication and authorisation. They are not directly related to diagnosing jitter and high latency in a VoIP network.

• Question 1149:

  A Chief Information Officer (CIO) is reviewing a proposal to provide access security for the IT department's restricted area. Which of the following is a preventive measure that should be implemented?

  A. Motion detection

  B. Cameras

  C. Biometric lock

  D. Asset tags

  Correct Answer: C

• Question 1150:

  Which of the following attacks blocks access to resources by flooding that resource with invalid requests?

  A. On-path attack

  B. IP spoofing attack

  C. DoS attack

  D. DNS poisoning attack

  Correct Answer: C