N10-008 practice questions 531–540

1. Question 531 · 871 in bank

   Which of the following would a network administrator configure to set NTP settings for a specific subnet within DHCP?

   • AReservation
   • BLease time
   • CScope options
   • DExclusion range

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   Answer: C

   Explanation

   C. Scope options To set NTP (Network Time Protocol) settings for a specific subnet within DHCP, a network administrator would configure "Scope options." Scope options allow you to define additional settings and parameters for a specific DHCP scope, including NTP server addresses. So, the correct answer is C. Scope options.

   Source: Adapted from community discussion — salah112

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2. Question 532 · 871 in bank

   A network administrator creates a new network, 10.10.0.0/24, on a DHCP server. The administrator wants to ensure that 10.10.0.10-10.10.0.15 are not allocated to other devices. Which of the following features should the administrator configure?

   • AExclusion
   • BReservation
   • CScope
   • DRelay

   Show answer

   Answer: A

   Explanation

   A. Exclusion To ensure that specific IP addresses within a DHCP scope are not allocated to other devices, a network administrator should configure an "Exclusion." Exclusions are used to specify a range of IP addresses that should not be assigned by the DHCP server. So, the correct answer is A. Exclusion.

   Source: Adapted from community discussion — salah112

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3. Question 533 · 871 in bank

   Which of the following protocols uses Dijkstra's algorithm to calculate the LOWEST cost between routers?

   • ARIP
   • BOSPF
   • CBGP
   • DEIGRP

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   Answer: B

   Explanation

   B. OSPF (Open Shortest Path First) OSPF (Open Shortest Path First) is the protocol that uses Dijkstra's algorithm to calculate the lowest cost or shortest path between routers. Dijkstra's algorithm is a link-state routing algorithm employed by OSPF to determine the best path based on the cost metric assigned to each link in the network.

   Source: Adapted from community discussion — salah112

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4. Question 534 · 871 in bank

   An on-call network technician receives an automated email alert stating that a power supply on a firewall has just powered down. Which of the following protocols would BEST allow for this level of detailed device monitoring?

   • ATFTP
   • BTLS
   • CSSL
   • DSNMP

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   Answer: D

   Explanation

   D. SNMP (Simple Network Management Protocol) SNMP (Simple Network Management Protocol) is commonly used for detailed device monitoring and management. It allows network administrators to monitor the status and performance of network devices, including routers, switches, firewalls, and other network equipment. SNMP can provide alerts and notifications, such as the power supply on a device powering down, through traps or informs. This makes SNMP the best choice for this level of detailed device monitoring among the options provided.

   Source: Adapted from community discussion — salah112

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5. Question 535 · 871 in bank

   A technician is investigating a SAN switch that has a high number of CRC errors. Which of the following is the MOST likely cause of the errors?

   • ABreak in the fiber
   • BBad switch port
   • CMismatched duplex
   • DMemory errors

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   Answer: A

   Explanation

   A. Break in the fiber Please reference link to Cisco page below. " Root Causes of CRC Errors The most common root cause of CRC errors is a damaged or malfunctioning component of a physical link between two devices. Examples include: vvvv 1. Failing or damaged physical medium (copper or fiber) or Direct Attach Cables (DACs). 2. Failing or damaged transceivers/optics. 3. Failing or damaged patch panel ports. 4. Faulty network device hardware (including specific ports, line card Application-Specific Integrated Circuits [ASICs], Media Access Controls [MACs], fabric modules, etc.), 5. Malfunctioning network interface card inserted in a host. " https://www.cisco.com/c/en/us/support/docs/ios-nx-os-software/nx-os-software/217554-understand-cyclic-redundancy-check-crc.html

   Source: Adapted from community discussion — Popeyes_Chicken

   References

   • Cisco documentation

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6. Question 536 · 871 in bank

   A customer runs a DNS lookup service and needs a network technician to reconfigure the network to improve performance. The customer wants to ensure that servers are accessed based on whichever one is topographically closest to the destination. If the server does not respond, then the next topographically closest server should respond. Which of the following does the technician need to configure to meet the requirements?

   • AMulticast addressing
   • BAnycast addressing
   • CBroadcast addressing
   • DUnicast addressing

   Show answer

   Answer: B

   Explanation

   B. Anycast addressing To achieve the goal of accessing servers based on topographical proximity and having the next closest server respond if the first one does not, the technician should configure Anycast addressing. Anycast is a networking technique where the same IP address is assigned to multiple devices, and the network routes the request to the topologically nearest node with that IP address. In Anycast, multiple servers share the same IP address, and the routing infrastructure directs the request to the nearest available server. If the nearest server is unreachable, the routing protocols redirect the request to the next topographically closest server. So, the correct answer is B. Anycast addressing.

   Source: Adapted from community discussion — salah112

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7. Question 537 · 871 in bank

   Which of the following would MOST likely be used to review disaster recovery information for a system?

   • ABusiness continuity plan
   • BChange management
   • CSystem life cycle
   • DStandard operating procedures

   Show answer

   Answer: A

   Explanation

   A. Business continuity plan The business continuity plan (BCP) is specifically designed to address disaster recovery and continuity of operations in the event of a disaster or disruptive incident. It outlines the processes, procedures, and policies to be followed to ensure the organization can continue its critical functions during and after a disaster. Therefore, to review disaster recovery information for a system, the most likely document to consult would be the business continuity plan (option A).

   Source: Adapted from community discussion — salah112

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8. Question 538 · 871 in bank

   A network technician is troubleshooting a connection to a web server. The technician is unable to ping the server but is able to verify connectivity to the web service using Telnet. Which of the following protocols is being blocked by the firewall?

   • AUDP
   • BARP
   • CICMP
   • DTCP

   Show answer

   Answer: C

   Explanation

   C. ICMP If the network technician is unable to ping the server but can establish connectivity using Telnet, it suggests that ICMP (Internet Control Message Protocol) traffic is being blocked by the firewall. Ping uses ICMP to test connectivity by sending Echo Request messages and expecting Echo Reply messages in response. If ICMP is blocked, ping will fail while other protocols like TCP (Telnet uses TCP) may still work. So, the correct answer is C. ICMP.

   Source: Adapted from community discussion — salah112

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9. Question 539 · 871 in bank

   A network administrator is configuring a firewall to allow for a new cloud-based email server. The company standard is to use SMTP to route email traffic. Which of the following ports, by default, should be reserved for this purpose?

   • A23
   • B25
   • C53
   • D110

   Show answer

   Answer: B

   Explanation

   B. 25 SMTP (Simple Mail Transfer Protocol) is the protocol commonly used for email transmission. By default, SMTP uses port 25 for communication. Therefore, to allow for a new cloud-based email server that uses SMTP, the network administrator should reserve port 25 in the firewall configuration.

   Source: Adapted from community discussion — salah112

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10. Question 540 · 871 in bank

    An engineer notices some late collisions on a half-duplex link. The engineer verifies that the devices on both ends of the connection are configured for half duplex. Which of the following is the MOST likely cause of this issue?

    • AThe link is improperly terminated
    • BOne of the devices is misconfigured
    • CThe cable length is excessive
    • DOne of the devices has a hardware issue

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    Answer: C

    Explanation

    Late collisions on a half-duplex link indicate that a collision occurred after the normal time frame for collision detection has passed. In a properly functioning network, late collisions on a half-duplex link are typically caused by: C. The cable length is excessive Late collisions can occur due to the time it takes for the electrical signal to propagate along the length of the cable. When the cable length is excessive, the electrical signal may not reach the other end of the cable before a collision occurs, resulting in late collisions. Therefore, an excessive cable length is the most likely cause of late collisions on a half-duplex link when both devices are correctly configured for half duplex.

    Source: Adapted from community discussion — stanislaus450

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N10-008 practice, question 531. 871 questions available.