N10-008 practice questions 31–40

1. Question 31 · 871 in bank

   After a firewall replacement, some alarms and metrics related to network availability stopped updating on a monitoring system relying on SNMP. Which of the following should the network administrator do FIRST?

   • AModify the device's MIB on the monitoring system.
   • BConfigure syslog to send events to the monitoring system.
   • CUse port mirroring to redirect traffic to the monitoring system.
   • DDeploy SMB to transfer data to the monitoring system.

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   Answer: A

   Explanation

   A. Modify the device's MIB on the monitoring system. In this scenario, the network administrator should first modify the device's Management Information Base (MIB) on the monitoring system. A MIB is a database used by SNMP to manage and monitor devices in a network. After replacing the firewall, the SNMP MIB on the monitoring system might not be updated to reflect the changes made on the new device, and this might cause some alarms and metrics related to network availability to stop updating. By modifying the device's MIB on the monitoring system, the administrator can ensure that the monitoring system can communicate properly with the new firewall and receive updated information on network availability. Configuring syslog, using port mirroring, or deploying SMB are all methods of transferring data to the monitoring system but they do not address the root cause of the problem, which is the lack of updated MIB on the monitoring system.

   Source: Adapted from community discussion — MelzTheArtist

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2. Question 32 · 871 in bank

   At the destination host, which of the following OSI model layers will discard a segment with a bad checksum in the UDP header?

   • ANetwork
   • BData link
   • CTransport
   • DSession

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   Answer: C

   Explanation

   Answer is C. Basic load balancers make forwarding decisions on IP address and TCP/UDP header values, working at the transport layer of the OSI model

   Source: Adapted from community discussion — RobJob

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3. Question 33 · 871 in bank

   Select 2

   A voice engineer is troubleshooting a phone issue. When a call is placed, the caller hears echoes of the receiver's voice. Which of the following are the causes of this issue? (Choose two.)

   • AJitter
   • BSpeed mismatch
   • CQoS misconfiguration
   • DProtocol mismatch
   • ECRC errors
   • FEncapsulation errors

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   Answer: AC

   Explanation

   - Jitter refers to the variation in the arrival time of packets, which can cause delays or disruptions in the delivery of audio or voice data. In the context of a phone call, jitter can cause the audio packets to arrive at the receiver at different times, leading to gaps in the audio and potential echoes. This is because some of the audio data may be repeated due to the receiver receiving the same audio packet more than once, resulting in an echo effect. - QoS (Quality of Service) misconfiguration can also lead to echoes by causing latency or delay in the transmission of audio data. QoS helps to prioritize network traffic, ensuring that voice or audio data is given priority over other types of traffic on the network. If QoS is misconfigured or not optimized properly, the voice data may experience delay or latency, leading to potential echoes or other audio artifacts. This is because the audio packets may arrive at the receiver at different times, causing overlapping audio and resulting in an echo effect.

   Source: Adapted from community discussion — StevenElev11n

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4. Question 34 · 871 in bank

   Which of the following VPN configurations should be used to separate Internet and corporate traffic?

   • ASplit-tunnel
   • BRemote desktop gateway
   • CSite-to-site
   • DOut-of-band management

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   Answer: A

   Explanation

   - A. Split-tunnel VPN configuration should be used to separate Internet and corporate traffic. This configuration only routes the corporate traffic through the VPN tunnel while allowing Internet traffic to access the Internet directly, providing a more secure connection and reducing the load on the VPN. - B. Remote desktop gateway (RD Gateway) is a type of VPN that enables remote access to a Windows-based computer or virtual machine (VM). It allows users to access their desktops or applications remotely over the Internet, but it doesn't separate Internet and corporate traffic. - C. Site-to-site VPN is a type of VPN that connects two or more networks together over the Internet. It is commonly used to connect remote offices or data centers, but it does not separate Internet and corporate traffic. It simply extends the network to another location. - D. Out-of-band management is a method of managing network devices (such as routers, switches, and firewalls) through a separate management channel or network. It is used for troubleshooting and configuration of network devices, but it is not a VPN configuration and does not separate Internet and corporate traffic.

   Source: Adapted from community discussion — StevenElev11n

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5. Question 35 · 871 in bank

   A technician is installing a new fiber connection to a network device in a datacenter. The connection from the device to the switch also traverses a patch panel connection. The chain of connections is in the following order: ✑ Device ✑ LC/LC patch cable ✑ Patch panel ✑ Cross-connect fiber cable ✑ Patch panel ✑ LC/LC patch cable ✑ Switch The connection is not working. The technician has changed both patch cables with known working patch cables. The device had been tested and was working properly before being installed. Which of the following is the MOST likely cause of the issue?

   • ATX/RX is reversed
   • BAn incorrect cable was used
   • CThe device failed during installation
   • DAttenuation is occurring

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   Answer: A

   Explanation

   It is a fiber network and fiber has insane range thus it is unlikely to be attenuation. Bad device and bad cable are out because they are explicitly tested as described. Therefore TX/RX is the only reasonable option.

   Source: Adapted from community discussion — Lu5ck

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6. Question 36 · 871 in bank

   Which of the following is required when connecting an endpoint device with an RJ45 port to a network device with an ST port?

   • AA media converter
   • BA bridge
   • CAn MDIX
   • DA load balancer

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   Answer: A

   Explanation

   GPT selects (A) Media converter, for these reasons: "When connecting an endpoint device with an RJ45 port (typically Ethernet port) to a network device with an ST port (a type of fiber optic port), you would need a media converter. A media converter is a device that can convert the signal from one type of media (in this case, Ethernet over copper) to another type (fiber optic) to enable communication between devices with different physical interfaces. Options (B) Bridge, (C) MDIX (Medium Dependent Interface Crossover), and (D) Load Balancer are not directly related to the specific situation of connecting an endpoint device with an RJ45 port to a network device with an ST port."

   Source: Adapted from community discussion — MitchF

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7. Question 37 · 871 in bank

   The management team has instituted a 48-hour RTO as part of the disaster recovery plan. Which of the following procedures would meet the policy's requirements?

   • ARecover all systems to a loss of 48 hours of data.
   • BLimit network downtime to a maximum of 48 hours per year.
   • CRecover all systems within 48 hours.
   • DRequire 48 hours of system backup maintenance.

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   Answer: C

   Explanation

   Answer is C. Recovery time objective (RTO) is the period following a disaster that an individual IT system may remain offline. This represents the maximum amount of time allowed to identify that there is a problem and then perform recovery (restore from backup or switch in an alternative system, for instance).

   Source: Adapted from community discussion — RobJob

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8. Question 38 · 871 in bank

   Which of the following cable types would MOST likely be used to provide high-speed network connectivity between nearby buildings?

   • AUTP
   • BCoaxial
   • CFiber
   • DCat 5
   • ETwinaxial

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   Answer: C

   Explanation

   Most likely is about the context. There is no need for FIber for this if it is "nearby" and it depends on how nearby. Fiber is an option but doesn't have to be. UTP and Cat 5 being there is an indication they expect FIber as the answer (only one to be selected). They also have "high speed" which is referred to as 100Mbps connection, for example 100-Base-T with cat5 could be an option, which is UTP. Probably, they want Fiber. I have to take this case to the supreme court

   Source: Adapted from community discussion — famco

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9. Question 39 · 871 in bank

   Which of the following is the physical security mechanism that would MOST likely be used to enter a secure site?

   • AA landing page
   • BAn access control vestibule
   • CA smart locker
   • DA firewall

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   Answer: B

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10. Question 40 · 871 in bank

    Which of the following BEST describes a North-South traffic flow?

    • AA public Internet user accessing a published web server
    • BA database server communicating with another clustered database server
    • CA Layer 3 switch advertising routes to a router
    • DA management application connecting to managed devices

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    Answer: A

    Explanation

    North-South exact traffic would be entering the Datacenter from outside. The management application connecting to managed devices doesn't give any indication of internal or external communication. Therefore, I would probably pick A. It is the only answer that indicates what was asked.

    Source: Adapted from community discussion — Timock

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N10-008 practice, question 31. 871 questions available.