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You have a network that uses a logical ring topology. How do messages travel through the network? Messages travel from one device to the next until they reach the destination device. In a logical ring topology, messages travel to each device in turn. If the message is not intended for that device, the message is forwarded to the next on the network.
You have implemented an ad hoc wireless network that doesn't employ a wireless access point. Every network card can communicate directly with others on the network. What type of physical network topology has been implemented in this type of network? mesh. There's no central connecting point. Any host can communicate directly with any other host on the network. impractical on a wired network. However, a mesh topology can be implemented with relative ease on a wireless network due to the lack of wires.
You have been asked to implement a network infrastructure that will accommodate failed connections. Which of the following network topologies provides redundancy for a failed link? star, bus, ring, mesh In a mesh topology, each network device is interconnected with all other network nodes. This creates multiple data paths. And in the event of a failed link, the data has an alternate route to arrive at its destination.
The ______ ________connects network devices to the network with a single patch cable, and the failure of a patch cable will make the connected device unavailable. star topology
The _______ ________ has a single point of failure. If there is a break in the network media, the network will be unavailable. A single break in a physical ring topology will disable the network. bus topology
which topologies connects each network device to a central hub? Star topologies connect each device on the network to a central hub.
What device is used to create a physical star topology? Router, Repeater, Switch, or Bridge A physical star topology uses a switch or a hub. Routers are used to connect multiple subnets together. A repeater regenerates a network signal so that it can be transmitted for longer distances.
_____ is a network in a small geographic area, like in an office LAN
A _____ is a network whose computers and servers are geographically far apart, but still connected. WAN
A _____ is the interconnection of components, such as laptops, mobile devices, printers, mice, keyboards, and other Bluetooth equipped devices, using some form of wireless technology within a personal range (typically 10 meters or less). PAN (personal area network)
A ______is the extension of a private network over a shared or public network, such as the internet. VPN
A customer is upgrading the routers and switches in their network. The signal source in these network devices is a light-pulse. Which of the following network cabling options is MOST likely being used in this upgrade? Fiber optic, Twisted pair, Copper, Wi Fiber Optic The signal source used with Fiber optic cables is a light pulses. Fiber optic cabling can be a laser, but most often, it is an LED
users in company required to use IP addresses when connecting to other hosts.Since IP addresses difficult to remember, you implement a protocol on network that allows computers to find another host's IP address using a logical name. Which of the followin DNS Domain Name System (DNS) is an internet service that translates domain names into IP addresses. Because domain names are alphabetic, they're easier to remember. For example, the name www.mydomain.com would be identified with a specific IP address.
A protocol for finding the IP address from a known MAC address. ARP
A protocol used to assign IP addresses to hosts. DHCP
A technician determines that an older network hub that connects 24 workstations is performing poorly due to excessive network collisions. Which of the following network devices would be the BEST replacement? Switch Router Patch panel Bridge switch A switch maintains a table of MAC addresses by port and forwards network frames to only the port that matches the MAC address. This significantly reduces collisions.
Which of the following LAN devices receives a signal on one port and forwards that signal only to the port where the destination device is connected? Route Hub Network adapter Switch Switch A switch offers guaranteed bandwidth to each port, unlike a hub, which shares bandwidth among all the network ports
Which of the following best describes how a switch functions? Con. multi. cable segments/devices & broadcasts frames all ports. Con. multi. segments of diff.arch. It translates frames & broadcasts to all ports. Con. multi. segments diffarchitectures. Switches have multiple ports and can connect multiple segments or devices. The switch forwards frames to the appropriate port. They function similarly to a hub except, instead of sending packets to all ports, switches send packets only to the destination
Which of the following hardware devices regenerates a signal out all connected ports without examining the frame or packet contents? Hub Bridge Router Gateway Switch Hub A hub and a repeater send received signals out all other ports. These devices do not examine the frame or the packet contents. A switch or a bridge use the MAC address in a frame for forwarding decisions. A router uses the IP address in a packet for
How do switches and bridges learn where devices are located on a network? When a frame enters a port, the source MAC address is copied from the frame header.
which best describes where an RJ45 cable would likely be used? Voice over IP connection Fax machine connection Telephone connection Modem connection Voice over IP connection RJ45 ports are used to create Ethernet networks by connecting multiple computers and networking devices. RJ45 ports have eight connector pins. Voice over IP (VoIP).
Which of the following protocols carry phone calls over an IP-based network? VoIP TCP RTSP HTTP VoIP is a method for carrying phone calls over IP-based network. TCP is a protocol which guarantees that data arrives at a destination without errors. VoIP is usually implemented on top of UDP instead of TCP to reduce latency.
protocols streams multimedia content over IP-based network? RTSP is used to stream multimedia content over IP networks.
Which network component connects a device to the transmission media and allows it to send and receive messages? Switch Protocol Bridge Network interface card The network interface card (NIC) allows a device to send and receive messages over the transmission media.
accurately describes how a modem works? Modem is shorthand for modulator/demodulator. job is to convert (or modulate) digital data from PC to analog phone signals & transmit through phone network. also receives analog data from phone network & converts (or demodulates) into digital PC data.
Which of the following is a valid MAC address? 192.168.12.15 34-9A-86-1G-B3-24 C0-34-FF-15-01-8E 255.255.255.0 C0-34-FF-15-01-8E MAC address is unique identifier hard coded on network adapter card. it has a total of 12 hexadecimal number. Note an answer would be valid MAC address except it uses a G value, which is beyond the range of a hexadecimal number.
An 8-port switch receives a frame on port number 1. The frame is addressed to an unknown device. What will the switch do? Send the frame out the destination port. Drop the frame. Send the frame out all 8 ports. Send the frame out ports 2-8. Send the frame out ports 2-8. it will send the frame out all ports except for the port on which the frame was received. After the switch learns the port that is used to reach the destination device, it will send the frame out only that port.
have computer with an onboard LAN adapter, which has failed, you are unable to connect the computer to the network. What should you do? Replace motherboard. Add network card using a PCI slot. Clear CMOS settings. Add network card using an AGP slot. Add a network card using a PCI slot. computer would then use the new network adapter instead of the one integrated on the motherboard. While installing the new card, you should disable the onboard LAN adapter to prevent it from showing in Device Manager.
 

 



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