N10-009 practice questions 41–50

1. Question 41 · 610 in bank

   Which of the following is a characteristic of the application layer?

   • AIt relies upon other layers for packet delivery.
   • BIt checks independently for packet loss.
   • CIt encrypts data in transit.
   • DIt performs address translation.

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   Answer: A

   Explanation

   A. It relies upon other layers for packet delivery. The application layer is the topmost layer in the OSI model, and it provides services and protocols that directly interact with end-user applications. However, it relies on the transport layer (and lower layers) to ensure packet delivery, as it doesn't handle the actual transmission of data.

   Source: Adapted from community discussion — HeatSquad77

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2. Question 42 · 610 in bank

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

   • AESP
   • BAH
   • CGRE
   • DUDP
   • ETCP

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   Answer: A

   Explanation

   Encapsulating Security Payload (ESP) is a protocol that encrypts and authenticates data packets between devices in a virtual private network (VPN) or other IPsec-based networks

   Source: Adapted from community discussion — HeatSquad77

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3. Question 43 · 610 in bank

   Which of the following should be configured so users can authenticate to a wireless network using company credentials?

   • ASSO
   • BSAML
   • CMFA
   • DRADIUS

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   Answer: D

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4. Question 44 · 610 in bank

   A network engineer performed a migration to a new mail server. The engineer changed the MX record, verified the change was accurate, and confirmed the new mail server was reachable via the IP address in the A record. However, users are not receiving email. Which of the following should the engineer have done to prevent the issue from occurring?

   • AChange the email client configuration to match the MX record.
   • BReduce the TTL record prior to the MX record change.
   • CPerform a DNS zone transfer prior to the MX record change.
   • DUpdate the NS record to reflect the IP address change.

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   Answer: B

   Explanation

   B. Reduce the TTL record prior to the MX record change. TTL (Time to Live) determines how long DNS records are cached by resolvers and other DNS servers. By reducing the TTL value prior to making the MX record change, the network engineer would have ensured that the new MX record would be propagated faster, reducing the time it takes for DNS servers and mail clients to recognize the change.

   Source: Adapted from community discussion — HeatSquad77

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5. Question 45 · 610 in bank

   Which of the following should a network administrator configure when adding OT devices to an organization's architecture?

   • AHoneynet
   • BData-at-rest encryption
   • CTime-based authentication
   • DNetwork segmentation

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   Answer: D

   Explanation

   D. Network segmentation When adding Operational Technology (OT) devices to an organization's architecture, network segmentation is essential. OT devices often have specific security and operational requirements that differ from traditional IT devices. Segmenting OT networks from IT networks helps to protect critical OT systems from cyber threats, limit the spread of attacks, and ensure that the OT environment remains secure and isolated from the broader corporate network.

   Source: Adapted from community discussion — HeatSquad77

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6. Question 46 · 610 in bank

   Which of the following should be used to obtain remote access to a network appliance that has failed to start up properly?

   • ACrash cart
   • BJump box
   • CSecure Shell
   • DOut-of-band management

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   Answer: D

   Explanation

   The correct answer is D: Out-of-band management (OOB). OOB management provides access to devices even when they are: Powered down Unresponsive Without an operating system Unable to start properly Crash cart (A): Requires physical presence at the device location Jump box (B): While related to OOB, it's just one component and requires a functioning network4 Secure Shell (C): Requires the device to be operational and the OS to be functioning

   Source: Adapted from community discussion — chupapi_001

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7. Question 47 · 610 in bank

   To reduce costs and increase mobility, a Chief Technology Officer (CTO) wants to adopt cloud services for the organization and its affiliates. To reduce the impact for users, the CTO wants key services to run from the on-site data center and enterprise services to run in the cloud. Which of the following deployment models is the best choice for the organization?

   • APublic
   • BHybrid
   • CSaaS
   • DPrivate

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   Answer: B

   Explanation

   A hybrid cloud is a computing environment that combines public and private clouds, as well as on-premises data centers, to run applications

   Source: Adapted from community discussion — HeatSquad77

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8. Question 48 · 610 in bank

   Which of the following is used to describe the average duration of an outage for a specific service?

   • ARPO
   • BMTTR
   • CRTO
   • DMTBF

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   Answer: B

   Explanation

   "Mean Time to Repair" (MTTR) refers to the average time it takes to diagnose and fix a malfunctioning system or component, returning it to full operational status

   Source: Adapted from community discussion — HeatSquad77

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9. Question 49 · 610 in bank

   Select 2

   A network engineer is setting up a new VoIP network for a customer. The current network is segmented only for computers and servers. No additional switch ports can be used in the new network. Which of the following does the engineer need to do to configure the network correctly? (Choose two.)

   • AChange network translation definitions.
   • BEnable 802.1Q.
   • CImplement a routing protocol.
   • DSet up voice VLANs.
   • EReconfigure the DNS.
   • FPlace devices in the perimeter network.

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   Answer: BD

   Explanation

   B. Enable 802.1Q. D. Set up voice VLANs. Explanation: B. Enable 802.1Q: 802.1Q is a VLAN tagging protocol that allows multiple VLANs to be carried over a single physical link. Since the network is already segmented for computers and servers, enabling 802.1Q allows the switch ports to carry both data and voice traffic over the same physical connection, effectively supporting the new VoIP network without requiring additional switch ports. D. Set up voice VLANs: Voice VLANs are required to separate voice traffic from data traffic on the same network. This ensures that voice data is prioritized for quality and performance while keeping it logically isolated from other types of traffic, which is critical for VoIP performance.

   Source: Adapted from community discussion — HeatSquad77

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10. Question 50 · 610 in bank

    A network rack has four servers and four switches with dual power supplies. Only one intelligent PDU is installed in the rack. Which of the following is the reason to add a second PDU?

    • APower redundancy
    • BFailed PSU monitoring
    • CSurge protection
    • DElectricity conservation

    Show answer

    Answer: A

    Explanation

    A. Power redundancy The primary reason to add a second Power Distribution Unit (PDU) in this situation is to provide power redundancy. Since the rack already contains servers and switches with dual power supplies, having two PDUs ensures that if one PDU fails, the other can continue to supply power to the equipment, preventing a complete power loss.

    Source: Adapted from community discussion — HeatSquad77

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N10-009 practice, question 41. 610 questions available.