Network Addressing and Basic Troubleshooting: Checkpoint Exam Modules 1-3
In what communication mode does an Ethernet switch operate by default?
full-duplex
Which feature on a Cisco router permits the forwarding of traffic for which there is no specific route?
gateway of last resort
When troubleshooting network problems, where would a network administrator find the configuration information, such as the computer names and the IP addresses that are used?
logical topology diagram
You are asked to document your school network. What type of topology diagram would you draw to show how devices are connected to the network?
logical topology diagram
A technician has been asked to develop a physical topology for a network that provides a high level of redundancy. Which physical topology requires that every node is attached to every other node on the network?
mesh
Which portion of the network layer address does a router use to forward packets?
network portion
In which hybrid logical topology are some devices fully interconnected with all other devices, while some are not?
partial mesh
What routing table entry has a next hop address associated with a destination network?
remote routes
Which statement describes the logical topology for a LAN?
It describes how computers access the LAN medium.
What is a characteristic of STP cable?
It provides better noise protection than UTP cabling provides.
If the default gateway is configured incorrectly on the host, what is the impact on communications?
The host can communicate with other hosts on the local network, but is unable to communicate with hosts on remote networks.
A computer has to send a packet to a destination host in the same LAN. How will the packet be sent?
The packet will be sent directly to the destination host.
Why are two strands of fiber used for a single fiber optic connection?
They allow for full-duplex connectivity.
How do hosts ensure that their packets are directed to the correct network destination?
They have to keep their own local routing table that contains a route to the loopback interface, a local network route, and a remote default route.
What is a primary role of the Physical layer in transmitting data on the network?
create the signals that represent the bits in each frame on to the media
Which statement describes an extended star topology?
End devices connect to a central intermediate device, which in turn connects to other central intermediate devices.
What network address and subnet mask combination would be used to create a default static route that matches any IPv4 destination?
0.0.0.0 0.0.0.0
Which physical layer network standard would use 8B/10B encoding?
1000BASE-T
In addition to the cable length, what factor could interfere with the communication carried over UTP cables?
electromagnetic interference
Two network interns are working for a company that is installing new networks with both copper and fiber-optic cabling. The interns are reviewing information in preparation for the work. What is a property of a fiber-optic connector?
A straight-tip connector locks securely with a "twist-on/twist-off" bayonet-style mechanism.
How do goodput, throughput, and bandwidth relate to network data transmissions?
Goodput is always lower than throughput, which is generally lower than bandwidth.
