Q1: If an Ethernet port on router was assigned an IP address of 172.16.112.1/20‚ what is the maximum number of hosts allowed on this subnet? A. 1024 B. 2046 C. 4094 D. 4096 E. 8190 Answer: C Explanation: Given IP address of 172.16.112.1 / 20‚ subnet mask: 255.255.240.0 max. num of hosts =(( 2^12) -2 ) = 4096-2 = 4094 Q2.:An access list was written with the four statements shown in the graphic. Which single access list statement will combine all four of these statements into a single statements that
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Computer Network I. Computer Dynamics Computer Dynamics is a microcomputer software development company that has a 300-computer network. The company is located in three adjacent five-story buildings in an office park‚ with about 100 computers in each building. The current network is a poorly designed mix of Ethernet and token ring (Ethernet in two buildings and token ring in the other). The networks in all three buildings are heavily overloaded‚ and the company anticipates significant growth in
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Cut through frame processing by a switch allows the switch to discard frames that fail the fcs check. –false When a switch Receives an Ethernet frame to a destination Mac address which is not in the devices Mac address tableThe switch applies the following logic – Floods that Ethernet frame out All interfaces except the received interface Which of the following correctly describe silk collation Domain design Trade offs – Single coalition domain requires all devices on a segment to share available
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1. Introduction to Network Devices All networks are made up of basic hardware building blocks to interconnect network nodes‚ such as Network Interface Cards (NICs)‚ Bridges‚ Hubs‚ Switches‚ and Routers. In addition‚ some method of connecting these building blocks is required‚ usually in the form of galvanic cable (most commonly Category 5 cable). Less common are microwave links (as in IEEE 802.12) or optical cable ("optical fiber"). An ethernet card may also be required. Network interface cards
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creation of different routes between a source and a destination on a purely router-based Internet backbone. Service providers who use MPLS can save money and increase revenue and productivity. Procedures for configuring MPLS are provided in the “Configuring Multiprotocol Label Switching” chapter later in this publication. Note Label switching on a router requires that Cisco Express Forwarding (CEF) be enabled on that router. Refer to the CEF feature documentation for configuration information
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EQUIPMENT AT THE LAYERS Some of the layers use equipment to support the identified functions. Hub related activity is “Layer One”. The naming of some devices designates the functional layer such as “Layer Two Switch” or “Layer Three Switch”. Router functions focus on “Layer Three”. User workstations and servers are often identified with “Layer Seven”. HUB Hub is a hardware device that contains multiple‚ independent ports that match the cable type of the network. Most
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devices. An administrator enters terminal no history sizeat the command prompt on a Cisco Catalyst switch and receives no error messages back‚ but the command history buffer is still available. What is the problem? The command contained a syntax error. The Cisco IOS version does not support disabling the command history buffer. The command history can only be disabled on a router‚ not a switch. The size parameter reset the default buffer size but did not disable access to the buffer. 40
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each other to the Local Area Networking (LAN)‚ to enable them share one internet line to get connected to the Internet. This is a basic idea on how to connect all your hardware to the LAN. Connecting the Computers All PCs have to connect to the switch/hub‚ which are merge as a LAN. A local area network (LAN) is a group of computers and associated devices that share a common communications line and typically share the resources of a single processor or server within a small geographic area (for
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255.255.255.0 192.168.1.1 PC-A NIC 192.168.1.3 255.255.255.0 192.168.1.1 Objectives Part 1: Configure Basic Device Settings Part 2: Configure the Router for SSH Access Part 3: Examine a Telnet Session with Wireshark Part 4: Examine a SSH Session with Wireshark Part 5: Configure the Switch for SSH Access Part 6: SSH from the CLI on the Switch Background / Scenario In the past‚ Telnet was the most common network protocol used to remotely configure network devices. However‚ protocols such as Telnet
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1. Straight-through cable (39-40): connects the wire at pin 1 on one end of the cable to pin 1 at the other end of the cable; the wire at pin 2 needs to connect to pin 2 on the other end of the cable; pin 3 on one end connects to pin 3 on the other; and so on. (To create a straight-through cable‚ both ends of the cable use the same TIA pinout standard on each end of the cable.) Crossover cable: a cable that swaps the wire pairs inside the cable 2. Collision domain (43): the set of devices whose
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