N10-008 Online Practice Questions and Answers

Correct Answer: A

Correct Answer: B

Reference: https://en.wikipedia.org/wiki/Mantrap_(access_control)

Correct Answer: E

Change management: A structured approach for making changes to an organization's IT infrastructure, designed to minimize the risk of disruptions and ensure changes are implemented in a controlled and effective manner.

Correct Answer: B

Both an incorrect subnet mask and an incorrect default gateway can cause loss of Internet connectivity. However, given the information provided:

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The subnet mask is set to 255.255.255.224, but it should be 255.255.255.192 for a /26 network. This incorrect subnet mask could cause issues with routing and connectivity within the local network.

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The gateway IP address is set to 196.24.4.1, which is not in the same subnet as the IP address of the interface (196.26.4.30). This could prevent the router from correctly routing traffic to and from the Internet.

It's hard to definitively say which is the "main" cause without more information, as both could potentially lead to a loss of Internet connectivity. However, typically, an incorrect default gateway would more directly lead to a loss of Internet connectivity, as the default gateway is responsible for routing traffic between the local network and the Internet. So if forced to choose one, I would lean towards **B. The incorrect gateway was configured** as being the main cause.

Correct Answer: E

A hot site is a leased facility that contains all the resources needed for full operation. This environment includes computers, raised flooring, full utilities, electrical and communications wiring, networking equipment, and uninterruptible power supplies (UPSs). The only resource that must be restored at a hot site is the organization's data, usually only partially. It should only take a few minutes to bring a hot site to full operation.

Although a hot site provides the quickest recovery, it is the most expensive to maintain. In addition, it can be administratively hard to manage if the organization requires proprietary hardware or software. A hot site requires the same security controls as the primary facility and full redundancy, including hardware, software, and communication wiring.

Correct Answer: A

The network manager is most likely performing the task of implementing port security on the switches in the Intermediate Distribution Frames (IDFs). Port security is a feature commonly used in network switches to control access to the network by limiting the devices that can connect to individual switch ports.

By configuring port security, the network manager can enforce restrictions on the MAC (Media Access Control) addresses allowed to connect to specific switch ports. This prevents unauthorized client computers or devices from gaining access to the secure wired network.

Typically, the network manager would configure port security to allow only authorized MAC addresses to connect to each switch port. If an unauthorized device attempts to connect, the switch can take actions such as shutting down the port, generating an alert, or applying other security measures to protect the network.

Correct Answer: B

The fire suppression system is a design consideration when building out an IDF because it can affect the safety and reliability of the network equipment and cabling. A fire suppression system is a system that detects and extinguishes fires in

a building, using water, gas, or chemicals. Depending on the type of fire suppression system, it can have different impacts on the IDF design, such as:

Water-based systems, such as sprinklers, can damage the network equipment and cabling if they are activated by a fire or a false alarm. Therefore, the IDF should be designed to protect the equipment and cabling from water exposure, such

as using waterproof cabinets, drip pans, and conduits.

Gas-based systems, such as clean agent systems, can displace the oxygen in the IDF and cause suffocation for anyone inside. Therefore, the IDF should be designed to allow for ventilation and air circulation, as well as warning signs and

alarms to alert anyone in the IDF before the gas is released. Chemical-based systems, such as dry chemical systems, can leave a residue on the network equipment and cabling that can affect their performance and lifespan. Therefore, the

IDF should be designed to minimize the contact between the chemical and the equipment and cabling, as well as provide a means for cleaning and restoring them after a fire.

The other options are not correct because:

The source panel amperage is not a design consideration when building out an IDF, as it is determined by the electrical circuit and the power needs of the network equipment and cabling. The source panel amperage does not affect the

layout, location, or protection of the IDF.

The humidity levels are not a design consideration when building out an IDF, as they are controlled by the HVAC system and the ventilation of the IDF. The humidity levels do not affect the layout, location, or protection of the IDF. The cable transmission speeds are not a design consideration when building out an IDF, as they are determined by the type and quality of the network cabling and the network equipment. The cable transmission speeds do not affect the layout, location, or protection of the IDF.

Correct Answer: A

Correct Answer: A

The Address Resolution Protocol (ARP) is used to map a known IP address to a MAC address on a local network. If a technician needs to find the MAC address of a connecting router, they can use the ARP command.

Correct Answer: B