WGU C172 Network and Security Protocol and Layers Exam Review Questions with certified Answers 2024/2025
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Course
WGU C172 Network & Security
Institution
WGU C172 Network & Security
WGU C172 Network and Security Protocol and Layers Exam Review Questions with certified Answers 2024/2025
Fiber cables, or fiber-optic cables - correct answer use glass or plastic threads within cables to transfer the data using light (lasers or LEDs) as opposed to traditional metal cables using ...
WGU C172 Network and Security Protocol
and Layers Exam Review Questions with
certified Answers 2024/2025
Fiber cables, or fiber-optic cables - correct answer use glass or plastic threads within
cables to transfer the data using light (lasers or LEDs) as opposed to traditional metal
cables using electricity.
Single-mode cables - correct answer made up of one single glass or plastic fiber. The
benefit of a single fiber cable is the ability to carry higher bandwidth for 50 times the
distance of a multimode cable. This requires higher cost electronics to create the light
and thus is typically used for longer distances (hundreds or thousands of kilometers)
and higher bandwidth applications.
Multimode cables - correct answer wider in diameter due to light modes being sent
across the cable. Multimode fibers are highly effective over medium distances (500
meters or less at higher speeds) and are generally used within a LAN. They are also
less expensive than single-mode fiber due to the potential for use with LEDs and other
lower-cost options for creating the light.
ping - correct answer one of the most basic tools for testing connectivity to other hosts
useful in troubleshooting connectivity with other devices
traceroute/tracert - correct answer used to trace the route an IP packet takes to a
destination isplays each hop (next router) in a numerical list with the hop's IP address
and the time it takes to receive the packet
traceroute - correct answer used for Linux systems
tracert - correct answer used for Windows systems
traceroute/tracert - correct answer can be useful in determining where a ping fails,
troubleshooting performance issues, and other aspects regarding connectivity.
,tracepath - correct answer is similar to traceroute or tracert in that it displays the path
taken by a packet from its source to its destination. This command is useful because it
can be used by any user instead of needing superuser privileges. It is primarily used in
Linux.
ipconfig - correct answer provides the user with the IP, subnet mask, and default
gateway for each network adapter by default with the /all option information, such as
MAC address, DHCP status, and lease information.
ifconfig - correct answer used to configure the kernel network interfaces. It is
implemented at the time of booting to configure the necessary interfaces. Once the
interfaces are configured, it is used for debugging or tuning the system. It is primarily
used in Linux.
ARP - correct answer displays the IP to physical (MAC) address mappings for hosts
that have been discovered in the ARP cache. ARP can be used to add, remove, or
modify entries in the ARP cache.
netstat - correct answer displays information about active ports and their state and can
be useful in troubleshooting and capacity management. It is available in Windows,
MacOS, and Linux.
nslookup - correct answer displays information for displaying DNS information and
troubleshooting DNS problems. It is useful in displaying names to IP address mappings.
dig - correct answer is a command used to query the DNS name servers. It is helpful in
troubleshooting DNS problems. It is also used for lookups and will display answers from
the query. It is a replacement for nslookup.
name server lookup - correct answer nslookup
network statistics - correct answer netstat
,Address Resolution Protocol - correct answer ARP
internet protocol configuration - correct answer ipconfig
whois - correct answer a tool most often used to look up who owns a domain or block
of IP addresses on the internet, including name, email address, and physical address.
However, there are many privacy options that hide this information from being returned.
It is primarily used in Linux.
route - correct answer used to display the current route tables on a host. Can also be
used to add or remove routes. This is used by the local host to determine where to send
traffic (0.0.0.0 means the default gateway, where the router sends things if it is not
otherwise defined in the routing table).
scp - correct answer command is used to securely copy files between servers,
leveraging SSH (secure shell) for authentication and encryption.
(Secure Copy Protocol - correct answer scp
ftp - correct answer data is unencrypted copies the file from one host to another host
FTPS - correct answer ___________encryption is needed uses SSL/TLS (Secure
Sockets Layer, replaced by Transport Layer Security
tftp - correct answer transfers a file from either a client to a server or from a server to a
client using UDP (user datagram protocol) instead of TCP, and so it is usually used on
reliable (local) networks.
finger - correct answer displays information about a user or users on a remote system,
including things such as last log-in time and username. It is primarily used in Linux.
, nmap - correct answer scans networks to see what it can find in terms of hosts and
open ports commonly used to determine what is deployed on a network for vulnerability
analysis, security scans, and related activities. is not native to either Linux or Windows
but can be downloaded for free and used with both.
tcpdump - correct answer displays TCP/IP packets and other network packets that are
being transmitted over the network system. It is a form of protocol analyzer (sometimes
called a sniffer) and is designed to show the contents of network packets in human-
readable form for troubleshooting, security analysis,
telnet/ssh - correct answer allow a user to manage accounts and devices remotely.
The main difference between the two is that SSH is encrypted, and thus all data is
secure from eavesdropping, while telnet is unencrypted.
.PAN - correct answer a network that is centered around a person and their devices.
LAN - correct answer consists of computers connected within a limited area.
WLAN - correct answer A wireless local area network
WLAN - correct answer Users and devices can be placed anywhere and move
anywhere in the coverage area. This is a popular choice for small businesses, as it is
easy and inexpensive to install and allows guests to use the network as well with a
hotspot service.
SAN - correct answer storage area network
SAN - correct answer a network that allows access to storage devices specifically
instead of the more general networking that can be used for any purpose.
CAN - correct answer campus area network,
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