CompTIA N10-009 Online Practice Questions and Exam Preparation

CompTIA N10-009 Online Questions & Answers

• Question 81:

  Which of the following routing protocols needs to have an autonomous system set in order to establish communication with neighbor devices?

  A. OSPF
  B. EIGRP
  C. FHRP
  D. RIP
  B. EIGRP

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  Explanation

  EIGRP (Enhanced Interior Gateway Routing Protocol)is a Cisco proprietary advanced distance-vector routing protocol. While it operates within an Autonomous System (AS), it requires the AS number to be configured for routers to recognize each other as EIGRP neighbors.

  OSPF (Open Shortest Path First)uses areas and routers must be in the same area to form adjacencies, but it doesn't require AS numbers in the same way. FHRP (First Hop Redundancy Protocol)is not a routing protocol but a group of protocols (e.g., HSRP, VRRP) to ensure high availability at the default gateway level.

  RIP (Routing Information Protocol)does not use autonomous system numbers.

  References:

  CompTIA Network+ N10-009 Official Objectives: 3.1?Compare and contrast various routing technologies.

• Question 82:

  Which document defines service expectations and scope between provider and customer?

  A. NDA
  B. MOU
  C. SLA
  D. MTTR
  C. SLA

• Question 83:

  Which of the following facilities is the best example of a warm site in the event of information system disruption?

  A. A combination of public and private cloud services to restore data
  B. A partial infrastructure, software, and data on site
  C. A full electrical infrastructure in place, but no customer devices on site
  D. A full infrastructure in place, but no current data on site
  D. A full infrastructure in place, but no current data on site

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  Explanation

  A warm site typically has a full infrastructure ready, but it lacks the most up-to-date data or is not immediately operational. It requires some configuration or data restoration to become fully functional.

• Question 84:

  Which of the following IP transmission types encrypts all of the transmitted data?

  A. ESP
  B. AH
  C. GRE
  D. UDP
  E. TCP
  A. ESP

• Question 85:

  A technician is planning an equipment installation into a rack in a data center that practices hot aisle/cold aisle ventilation.

  Which of the following directions should the equipment exhaust face when installed in the rack?

  A. Sides
  B. Top
  C. Front
  D. Rear
  D. Rear

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  Explanation

  In a data center that uses hot aisle/cold aisle ventilation, equipment is typically installed so that cool air enters from the cold aisle (front) and hot air is exhausted to the hot aisle (rear). This configuration maximizes cooling efficiency.

• Question 86:

  A network administrator wants to increase network security by preventing client devices from communicating directly with each other on the same subnet.

  Which of the following technologies should be implemented?

  A. ACL
  B. Trunking
  C. Port security
  D. Private VLAN
  D. Private VLAN

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  Explanation

  Private VLANs (PVLANs)are used to segment devices on the same subnet and switch so they cannot communicate with each other, while still accessing a shared resource like a router or gateway. This is often used in shared hosting or DMZ environments.

  Option A. ACLs (Access Control Lists)control traffic between networks, not within the same VLAN.

  Option B. Trunkingcarries multiple VLANs between switches but does not isolate devices.

  Option C. Port securitylimits MAC addresses per port but doesn't isolate communication between ports.

  References:

  CompTIA Network+ N10-009 Official Objectives: 3.4?Compare and contrast access control methods.

• Question 87:

  A network administrator wants to block traffic from a specific IP address.

  Which of the following should be used?

  A. VLAN
  B. ACL
  C. NAT
  D. DHCP
  B. ACL

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  Explanation

  Access Control Lists (ACLs) are used to filter network traffic based on defined criteria such as IP address, protocol, or port number. By creating an ACL rule that denies traffic from a specific IP address, the administrator can effectively block that source from accessing network resources. VLANs are used for segmentation, NAT translates addresses, and DHCP assigns IP configurations. ACLs provide granular control over traffic flow and are commonly implemented on routers and switches for security and traffic management.

• Question 88:

  HOTSPOT

  You have been tasked with implementing an ACL on the router that will:

  1.Permit the most commonly used secure remote access technologies from the management network to all other local network segments.

  2.Ensure the user subnet cannot use the most commonly used remote access technologies in the Linux and Windows Server segments.

  3.Prohibit any traffic that has not been specifically allowed.

  INSRUCTIONS

  Use the drop-downs to complete the ACL.

  If at any time you would like to bring back the initial state of the simulation, please click the Reset All button.

  

  

  

• Question 89:

  Which of the following disaster recovery metrics describes the average length of time a piece of equipment can be expected to operate normally?

  A. RPO
  B. RTO
  C. MTTR
  D. MTBF
  D. MTBF

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  Explanation

  MTBF is the disaster recovery metric that describes the average length of time a piece of equipment can be expected to operate normally. MTBF stands for mean time between failures, which is a measure of the reliability and availability of a device or system. MTBF is calculated by dividing the total operating time by the number of failures that occurred during that time. MTBF indicates how often a device or system fails and how long it can run without interruption. A higher MTBF means a lower failure rate and a longer operational life span.

• Question 90:

  A network administrator is reviewing north-south traffic to determine whether a security threat exists.

  Which of the following explains the type of traffic the administrator is reviewing?

  A. Data flowing between application servers
  B. Data flowing between the perimeter network and application servers
  C. Data flowing in and out of the data center
  D. Data flowing between local on-site support and backup servers
  C. Data flowing in and out of the data center