Network+ Chapter 2: Network Infrastructure and Documentation

What is the first steps of inventory management? A. Interview users B. Back up network data C. List an administrative accounts user name and password for each device on a network D. List all components on the network

D. List all components on the network - Inventory Management refers to the monitoring and maintaining of all the assets that make up a network. List all components on the network, hardware, software.

Why is it important to minimize cable clutter in a rack?

- Minimizing cable clutter can help prevent airflow blockages and heat buildup.

Why is it important to use plenum-rated cabling in the area above the ceiling tile?

- Plenum Cabling, if you run cable in the plenum, the area above the ceiling tile or below the subflooring, make sure the cable sheath is plenum-rated, and consult with local electric installation codes to be certain you are installing it correctly. A plenum-rated cable is coated with a flame-resistant jacket that produces less smoke than regular cable.

List some good names for devices on your home network or on the network in your school's lab. Demonstrate the use of best practices when creating a naming scheme for devices on a computer network.

- Applying Concepts: phx-09-nw-01-rtr3 - The first field tell is abbreviated for Phoenix - The second field refers to the 9th floor - The third field refers to the location which is the North West corner - The fourth field refers to the Rack Number - The last field refers to the type of device (a router) and number of the router (3)k.

For what time period should you schedule a network change?

- Avoid disrupting normal work flow, if problems arise as the maintenance is in progress and you realize that you are about to exceed the maintenance window, be sure to inform technical staff and users of the anticipated delay and what to expect.

How can you go about gathering the information needed to assemble a thorough operations manual?

- Essential documentation covers logical and physical connections on a network; inventory management; IP address utilization; vendors (such as contact information, warranty information, service agreements, and troubleshooting instructions); and internal operating procedures, policies and standards.

What is the unit of measurement that defines the space available in a rack? How tall are standard racks?

- Height, Rack height is measured in Rack Units (RU or U) with the industry standard being 42U tall. (about 6 feet). Half racks are usually 18U-22U tall.

There is only one ______ per network, but there can be many ______ connecting internal portions of the network.

- MDF (main distribution frame or main distribution facility) - IDF (intermediate distribution frame) - Tour Stop 2: Data Room in Building B, There is only one MDF per campus, but there can be many IDF's connecting internal portions of the network.

What are some elements that are typically included in network diagrams?

- Network Diagram, which are graphical representations of a networks devices and connections. These diagrams may shw physical layout, logical topology, IP address reserves, names of major network devices, and types of transmission media.

In a large organization, how do you typically request permission to perform a network change?

- Submit a change request document - Understand and follow the approval process - The change is project-managed - Provide additional documentation - Close the change

Why is it important to use a structured cabling standard when installing and managing cabling systems?

- The standard known as the TIA/EIA-568 Commercial Wiring Standard, describes uniform, enterprise-wide cabling systems, regardless of who manufacturers or sells various parts used in the system. The Structured Cabling system describes the best way to install networking media to maximize performance and minimize upkeep.

You've decided to run a Nmap scan on your network. What app could you open to perform this task? Choose all that apply. A. Zenmap B. Microsoft Edge C. Command Prompt D. PowerShell

A. Zenmap C. Command Prompt D. PowerShell - Nmap, originally designed for Linux as a command-line utility but has since been expanded for compatibility on several other OS's. GUI form called Zenmap

A transceiver was recently damaged by a lightning strike during a storm. How might you decide whether the ISP is responsible for replacing this device, or whether your company must foot the bill? A. Look at whether the device is located on the ISP's side of the demarc B. Look at the manufacturer information on the device's label C. Look at purchase records for the device to determine when it was acquired D. Look at what kinds of cables are connected to this device

A. Look at whether the device is located on the ISP's side of the demarc - Demarc (demarcation point), for most situations, the device that marks where a telecommunications service providers network ends and the organizations network begins is the demarc, or demarcation point. For example, an ISP (Internet Service Provider) might be responsible for fiber-optic cabling to your building to connect to your LAN. Demarc for Internet service to a campus network; might be located inside a small data room and is mounted to a wall near two racks that house routers, switches, servers, and UPS's.

Which of the following devices are you likely to find in the MDF? Choose all that apply. A. Routers B. Switches C. Network Printer D. KVM Switch

A. Routers B. Switches D. KVM Switch - MDF (main distribution frame or main distribution facility), also known as the MC (main cross-connect), the MDF is the centralized point of interconnection for an organization LAN or WAN. In practice, the term MDF can refer either to the racks holding the network equipment or the room that houses both the racks and the equipment. The MDF and the entrance facility might be in the same data room, or they could be in separate rooms, depending on the layout of the building. Imagine a star topology with the MDF at the canter. Besides serving as a connection for cables, an MDF might contain the demark, a transceiver that converts the incoming signal from the ISP into Ethernet, other connectivity devices (such as switches and routers), network servers, and transmission media (such as fiber optic cable, which is capable of the greatest throughput).

You need to connect a new network printer to a nearby wall jack. What kind of cable should you use? A. Fiber-Optic Cable B. Patch Cable C. Backbone Cable D. Plenum-Rated Cable

B. Patch Cable - Patch Cable, a patch cable is relatively short (usually between 3 and 25 feet) length of cabling with connectors at both ends.

If you're shopping for a rack switch, what component on the switch tells you it can be mounted to a rack? A. AC Adapter B. Rack Ears C. Padded Feet D. Large Fans

B. Rack Ears - Rack Systems, The side posts in a rack provide bracketing for attaching devices, such as routers, servers, switches, patch panels, audiovisual equipment, or telephony equipment. This equipment often comes with attached or attachable brackets, called rack ears, for securing the device to the posts

What type of diagram shows a graphical representation of a network's wired infrastructure? A. Rack Diagram B. Wiring Schematic C. Network Map D. Network Topology

B. Wiring Schematic - Wiring Schematic, is a graphical representation of a networks wired infrastructure. In its most detailed form, it shows every wire necessary to interconnect network devices and the locations of those wires. Example looking for a fault

Which of these is considered a secure place to store a list of documented network passwords? A. The CEO's smartphone B. A sticky note under the keyboard C. A Password Manager D. The MDF

C. A Password Manager - You need to keep password documentation very secure. However, multiple people should have access to it. A password manager, such as KeePass or LastPass, can be invaluable in this situation.

Which device converts signals from a campus's analog phone equipment into IP data that can travel over the internet? A. VoIP PBX B. VoIP Endpoint C. VoIP Gateway D. VoIP Switch

C. VoIP Gateway - VoIP telephone equipment, voice over IP, also known as IP telephony, is the use of any network (either public or private) to carry voice signals using TCP/IP protocols. In one or more data rooms on a campus network, you might find a VoIP gateway device, which converts signals from a campus's analog phone equipment into IP data that can travel over the internet, or which converts VoIP data from an internal IP network to travel over a phone company's analog telephone lines.

A technician from your ISP has arrived to help you troubleshoot a weak WAN connection. To what location do you take her? A. IDF B. Work Area C. CEO's Office D. Entrance Facility

D. Entrance Facility - Entrance Facility, this is the location where an incoming network, such as the Internet, connects with the school or corporate network. For large networks, the entrance facility might be an equipment room or data closet. For small networks, it might simply be equipment and cabling mounted to the side of a building.