CompTIA N10-008 Online Practice Questions and Exam Preparation

CompTIA N10-008 Online Questions & Answers

• Question 611:

  Which of the following BEST prevents unauthorized access to spare workstation inventory?

  A. Asset tags
  B. Tamper detection
  C. Security camera
  D. Locking cabinet
  E. Smart lockers
  D. Locking cabinet

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  Explanation/Reference:

  A locking cabinet physically secures spare workstation inventory, preventing unauthorized access to the equipment. It offers a tangible barrier that restricts entry unless authorized personnel have the necessary keys or access codes.

• Question 612:

  A technician needs to verify an Ethernet run is functioning properly. Which of the following tools should be used?

  A. Protocol analyzer
  B. Crimper
  C. Cable tester
  D. Punch down tool
  C. Cable tester

• Question 613:

  The security department is looking to install a new IP-based camer Plugging the camera into the available Ethernet jack does not power on the camera. Upon further investigation, the cable tests fine, and it does provide power to a VoIP phone.

  Which of the following is MOST likely causing the issue?

  A. The brown pair UTP has a short.
  B. The camera requires 802. 3at power
  C. The camera requires Cat 7 cabling.
  D. The switchport has PoE disabled.
  C. The camera requires Cat 7 cabling.

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  Explanation/Reference:

• Question 614:

  A network technician is investigating an issue with a desktop that is not connecting to the network. The desktop was connecting successfully the previous day, and no changes were made to the environment. The technician locates the switchport where the device is connected and observes the LED status light on the switchport is not lit even though the desktop is turned on Other devices that arc plugged into the switch are connecting to the network successfully. Which of the following is MOST likely the cause of the desktop not connecting?

  A. Transceiver mismatch
  B. VLAN mismatch
  C. Port security
  D. Damaged cable
  E. Duplex mismatch
  D. Damaged cable

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  Explanation/Reference:

  A damaged cable is most likely the cause of the desktop not connecting to the network. A damaged cable can cause physical layer issues such as loss of signal, attenuation, interference, or crosstalk. These issues can prevent the desktop from establishing a link with the switch and result in the LED status light on the switchport being off. Other possible causes of physical layer issues are faulty connectors, ports, or transceivers.

  References: https://www.cisco.com/c/en/us/support/docs/lan-switching/ethernet/14119-37.html

• Question 615:

  A network administrator is investigating a performance issue on a dual-link connection--VPN and MPLS--to a partner network. The MPLS is the primary path, and the VPN is used as a backup. While communicating, the delay is measured at 18ms, which is higher than the 6ms expected when the MPLS link is operational but lower than the 30ms expected tor the VPN connection. Which of the following will MOST likely point to the root cause of the Issue?

  A. Checking the routing tables on both sides to ensure there is no asymmetric routing
  B. Checking on the partner network for a missing route pointing to the VPN connection
  C. Running iPerf on both sides to confirm the delay that Is measured is accurate
  D. Checking for an incorrect VLAN assignment affecting the MPLS traffic
  A. Checking the routing tables on both sides to ensure there is no asymmetric routing

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  Explanation/Reference:

  Asymmetric routing can occur when two routers have different paths for the same two hosts, resulting in increased latency and possible packet loss. According to the CompTIA Network+ Study Manual, "If the path from the source to the destination is not the same in both directions, the packets will take different routes and the latency can increase significantly." To confirm this, the network administrator should check the routing tables on both sides of the connection and ensure that the same path is used in both directions.

• Question 616:

  A Fortune 500 firm is deciding on the kind of data center equipment to install given its five-year budget outlook. The Chief Information Officer is comparing equipment based on the life expectancy of different models. Which of the following concepts BEST represents this metric?

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

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  Explanation/Reference:

  Mean Time Between Failures (MTBF) represents the life expectancy of equipment, it is a metric that predicts the time interval between two failure events of a device. It is typically measured in hours and it is used to predict the reliability of a device over time. MTTR (Mean Time To Recovery), RPO (Recovery Point Objective), and RTO (Recovery Time Objective) are related to disaster recovery and business continuity, they don't represent the life expectancy of equipment. MTTR is the average time to repair a failed component, RPO is the maximum acceptable period in which data might be lost from an IT service due to a major incident, and RTO is the target time within which an IT service should be restored after a disaster or disruption.

• Question 617:

  A customer wants to log in t o a vendor's server using a web browser on a laptop. Which of the following would require the LEAST configuration to allow encrypted access to the server?

  A. Secure Sockets Layer
  B. Site-to-site VPN
  C. Remote desktop gateway
  D. Client-to-site VPN
  A. Secure Sockets Layer

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  Explanation/Reference:

  Secure Sockets Layer (SSL) would require the least configuration to allow encrypted access to the server. SSL is a protocol used for secure communication over the internet and is widely used for web applications. By enabling SSL on the vendor's server, the customer can access it securely using a web browser without requiring additional configurations such as setting up a VPN or remote desktop gateway.

• Question 618:

  A network administrator is given the network 80.87.78.0/26 for specific device assignments. Which of the following describes this network?

  A. 80.87.78 0 - 80.87.78.14
  B. 80.87.78 0 - 80.87.78.110
  C. 80.87.78 1 - 80.87.78.62
  D. 80.87.78.1 - 80.87.78.158
  C. 80.87.78 1 - 80.87.78.62

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  Explanation/Reference:

  The network 80.87.78.0/26 is a Class A network with a subnet mask of /26, which means that it contains 26 bits of network information and 6 bits of host information. The range of valid host addresses for this network is 80.87.78.1 to

  80.87.78.62. Any addresses outside of this range are reserved for special purposes or are not used.

• Question 619:

  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
  C. A Layer 3 switch

• Question 620:

  Which of the following IP packet header fields is the mechanism for ending loops at Layer 3?

  A. Checksum
  B. Type
  C. Time-to-live
  D. Protocol
  C. Time-to-live

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  Explanation/Reference:

  The time-to-live (TTL) field is the mechanism for ending loops at Layer 3, which is the network layer of the OSI model. The TTL field is an 8-bit field that indicates the maximum time or number of hops that an IP packet can travel before it is discarded. Every time an IP packet passes through a router, the router decrements the TTL value by one. If the TTL value reaches zero, the router drops the packet and sends an ICMP message back to the source, informing that the packet has expired. This way, the TTL field prevents an IP packet from looping endlessly in a network with routing errors or cycles123. The other options are not mechanisms for ending loops at Layer 3. The checksum field is a 16-bit field that is used to verify the integrity of the IP header. The checksum field is calculated by adding all the 16-bit words in the header and taking the one's complement of the result. If the checksum field does not match the calculated value, the IP packet is considered corrupted and discarded12. The type field, also known as the type of service (TOS) or differentiated services code point (DSCP) field, is an 8-bit field that is used to specify the quality of service (QoS) or priority of the IP packet. The type field can indicate how the packet should be handled in terms of delay, throughput, reliability, or cost12. The protocol field is an 8-bit field that is used to identify the transport layer protocol that is encapsulated in the IP packet. The protocol field can indicate whether the payload is a TCP segment, a UDP datagram, an ICMP message, or another protocol12.