HUB Networks using a Star topology require a central point for the devices to connect. Originally this device was called a concentrator since it consolidated the cable runs from all network devices. The basic form of concentrator is the hub. As shown in Figure; the hub is a hardware device that contains multiple, independent ports that match the cable type of the network. Most common hubs interconnect Category 3 or 5 twisted-pair cable with RJ-45 ends, although Coax BNC and Fiber Optic BNC hubs
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IT130 Introduction to Networking Final Exam Study Guide These are the facts from which your exam questions will be drawn. If you know these facts, you will do well on the exam. All models are a simplified representation of the real thing, having at least all the major functions of the real item. What constitutes a major rather than a minor function is open to opinion. Most networks use a cable known in the industry as an unshielded twisted pair (UTP), usually containing four pairs of wires that
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IT130 Introduction to Networking Final Exam Study Guide These are the facts from which your exam questions will be drawn. If you know these facts, you will do well on the exam. All models are a simplified representation of the real thing, having at least all the major functions of the real item. What constitutes a major rather than a minor function is open to opinion. Most networks use a cable known in the industry as an unshielded twisted pair (UTP), usually containing four pairs of wires that
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David | 4/30/2014 | | Exercise 7.1.1: Owning the entirety of a WAN is impractical for an organization because there are no limitations and they can be custom built to the organization. It is favorable for the organization to maintain a LAN for expansion purposes. Exercise 7.1.2: On a WAN there is no absolute limit for the distance of a leased line. Table 7-1 WAN Physical Media Media | Infrastructure | Summary | UTP | Phone lines | Uses copper lines between all locations, limited
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telecommunications system that facilitates communication in the most efficient manner. In order to achieve the desired connectivity, an array of products and services will be necessary. Logical Network Design The network topology used for Acme’s WAN should be a star topology with each site having only a direct connection to headquarters; the benefit is that network administration is centralized. The engineering and sales offices will connect to headquarters over the public WAN through a VPN configured
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100BASE-T-Hub, Hub, Bridge, Workgroup Switch, Router, Network Cloud • Repeaters – Layer 1, Physical Layer device. Similar to a hub. • Hubs – Layer 1, Physical Layer device. Used to regenerate & retime network signals. Connects segments of a LAN. Contains multiple ports. Also called Multiport Repeaters. Used in Ethernet 10BASE-T or 100BASE-T networks. • Difference between Hubs & Repeaters is the number of cable that connects to the device. Repeater- 2 ports & Hubs- 4 to 20 & more
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d4 1.4.2.2: 1.5.1.2: 1.5.3.2: 3.1.1.5: 3.1.3.2: 3.1.4.3: 3.2.4.4: 3.3.3.2: 3.4.3.3: 5.2.2.3: 5.3.2.2: 5.3.4.2: 5.5.3.2: 6.1.1.4: 6.1.2.2: 6.1.3.2: 6.2.3.4: 6.2.5.3: 7.1.4.3: 7.2.2.3: 7.2.3.2: 7.2.4.2: 7.2.5.2: 7.3.2.3: 7.3.4.3: 8.1.2.3: Creating Topologies . . . . . . . . . . . . . . . . . . . . Observing and Recording Server Traffic . . . . . . . . . Using Redundant Links on Server Farm Devices . . . . Investigating Existing Network Devices . . . . . . . . . Creating Modular Block Diagrams . . . .
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three main decisions to be made with most organizations when choosing the kind of network they want and how it would be established, which would be the following: What type of network is desired? LAN, MAN, WAN, VLAN, PAN or a mixture of networks can be created to convene business and customers. What topology is needed based on the organizations budget and need for efficiency? And lastly, how will these networks connect? This will also be based on the organization’s budget and/or need for security. Applying
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tch Lab 4.4.2 VTP Configuration Challenge Topology [pic] Addressing Table |Device |Interface |IP Address |Subnet Mask |Default Gateway | |(Hostname) | | | | | |S2 |VLAN 99 |172.17.99.12 |255.255.255.0 |N/A
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Chapter 3—Security Part I: Auditing Operating Systems and Networks TRUE/FALSE 1. In a computerized environment, the audit trail log must be printed onto paper documents. ANS: F PTS: 1 2. Disguising message packets to look as if they came from another user and to gain access to the host’s network is called spooling. ANS: F PTS: 1 3. A formal log-on procedure is the operating system’s last line of defense against unauthorized access. ANS: F PTS: 1 4. Computer viruses usually spread throughout
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