ANCC – PMHNP Test Questions and Answers Latest 2023 Rated A+, Exams of Nursing

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Questions and Answers Latest 2023 Graded A+

protocol - ans ✅ The set of rules established for users to exchange information topology - ans ✅ The network architecture used to interconnect the networking equipment deterministic network - ans ✅ Each station connected to the network is ensured access for transmission of its messages at regular or fixed time intervals bus topology - ans ✅ The computers share the media (coaxial cable) for data transmission ThinNet - ans ✅ The coaxial cable used in a bus network. star topology - ans ✅ Twisted-pair cables connect the devices to a central hub or switch hub - ans ✅ A multiport repeater device used at the center of a star topology multiport repeater - ans ✅ The data it receives is broadcast and seen by all devices connected to its ports. A hub. broadcast - ans ✅ Transmission of data by a hub to all devices connected to its ports switch - ans ✅ Device used at the center of a star topology that forwards a frame it receives directly out the port associated with its destination address

WGU C172 Network and Security – Foundations Test

Questions and Answers Latest 2023 Graded A+

mesh topology - ans ✅ All networking devices are directly connected to each other, allows for full redundancy OSI model - ans ✅ The seven layers describing network functions Physical layer - ans ✅ Provides the electrical and mechanical connection to the network (cabling, NICs). 1st OSI layer Data link layer - ans ✅ Handles error recovery, flow control (synchronization), and sequencing (MAC, Ethernet). 2nd OSI layer Network layer - ans ✅ Accepts outgoing messages and combines messages or segments into packets, adding a header that includes routing information (IP, IPX). 3rd OSI layer Transport layer - ans ✅ Concerned with message integrity between source and destination (TCP, UDP). 4th OSI layer

WGU C172 Network and Security – Foundations Test

Questions and Answers Latest 2023 Graded A+

Session layer - ans ✅ Provides the control functions necessary to establish, manage, and terminate the connections (NSF, SQL). 5th OSI layer Presentation layer - ans ✅ Accepts and structures the messages for the application (ASCII, JPEG). 6th OSI layer Application layer - ans ✅ Interacts with application programs that incorporate a communication component such as your Internet browser and email (HTTP, FTP, SMTP). 7th OSI layer 3 basic steps to isolate network problem - ans ✅ Is the connection to the machine down? (layer 1) Is the network down? (layer 3) Is a service on a specific machine down? (layer 7) CSMA/CD - ans ✅ The Ethernet LAN media-access method, carrier sense multiple access with collision detection Ethernet - ans ✅ LAN protocol created in 1972 and standardized in 1980 using CSMA/CD.

WGU C172 Network and Security – Foundations Test

Questions and Answers Latest 2023 Graded A+

Frame - ans ✅ Contains the header, data, and trailer (the padding and 4-byte CRC frame check sequence) Frame header - ans ✅ Consists of the preamble, start frame delimiter, destination and source addresses, and length/type field 64 bytes - ans ✅ Minimum length of an Ethernet frame 1518 bytes - ans ✅ Maximum length of an Ethernet frame MAC address - ans ✅ A unique 6-byte/48-bit address assigned by the vendor of the network interface card displayed in 12 hex digits Organizationally unique identifier (OUI) - ans ✅ The first 3 bytes of the MAC address that identifies the manufacturer of the network hardware ipconfig /all - ans ✅ Enables the MAC address information to be displayed from the command prompt

WGU C172 Network and Security – Foundations Test

Questions and Answers Latest 2023 Graded A+

IANA - ans ✅ The agency that assigns IP addresses to computer networks IP address - ans ✅ Unique 32-bit address that identifies on which network the computer is located as well as differentiates the computer from all other devices on the same network Class A networks - ans ✅ Governments, very large networks. Range from 0.0.0. to 126.255.255.255. Example: 44.x.x.x Class B networks - ans ✅ Midsize companies, universities, and so on. Range from 128.0.0.0 to 191.255.255.255. Example: 128.123.x.x Class C networks - ans ✅ Small networks. Range from 192.0.0.0 to 223.255.255.255 Example: 192.168.1.x Class D networks - ans ✅ Reserved for multicast groups. Range from 224.0.0.0 to 239.255.255.255. Example: 224.x.x.x

WGU C172 Network and Security – Foundations Test

Questions and Answers Latest 2023 Graded A+

Class E networks - ans ✅ Experimental, not used on the Internet. Range from 240.0.0.0 to 254.255.255. Network number - ans ✅ The portion of the IP address that defines which network the IP packet is originating from or being delivered to Host number - ans ✅ The portion of the IP address that defines the location of the networking device connected to the network; also called the host address Host address - ans ✅ Another name for the host number ipconfig - ans ✅ Command used to display the computer's address Private addresses - ans ✅ IP addresses set aside for use in private intranets Intranet - ans ✅ An internal network that provides file and resource sharing but is not accessed from the Internet

WGU C172 Network and Security – Foundations Test

Questions and Answers Latest 2023 Graded A+

IP internetwork - ans ✅ A network that uses IP addressing for identifying devices connected to the network 3 blocks for private IP addresses - ans ✅ 10.0.0.0-10.255.255. 172.16.0.0-172.31.255. 192.168.0.0-192.168.255. Wired network - ans ✅ Uses cables and connectors to establish the network connection Wireless network - ans ✅ Uses radio signals to establish the network connection Wi-Fi - ans ✅ Wi-Fi Alliance—an organization that tests and certifies wireless equipment for compliance with the 802.11x standards 802.11a - ans ✅ Wireless standard, 54Mbps, 75 ft, 5Ghz 802.11b - ans ✅ Wireless standard, 11Mbps, 100-150 ft, 2.4GHz

WGU C172 Network and Security – Foundations Test

Questions and Answers Latest 2023 Graded A+

802.11g - ans ✅ Wireless standard, 54Mbps, 150 ft, 2.4GHz 802.11n - ans ✅ Wireless standard, 4 x 802.11g speeds (200+Mbps). 2.4GHz or 5GHz 802.11ac - ans ✅ Latest wireless standard, single-station data transfer rates of 500Mbps, 5Ghz wireless router - ans ✅ Device used to interconnect wireless networking devices and to give access to wired devices and establish the broadband Internet connection to the ISP access point - ans ✅ A transceiver used to interconnect a wireless and a wired LAN Broadband gateway - ans ✅ Combines a modem and router in one unit. Also referred to as a broadband modem range extender - ans ✅ Device that relays the wireless signals from an access point or wireless router into areas with a weak signal/no signal

WGU C172 Network and Security – Foundations Test

Questions and Answers Latest 2023 Graded A+

hotspots - ans ✅ A limited geographic area that provides wireless access for the public Service Set Identifier (SSID) - ans ✅ Wireless network name Wi-fi Protected Setup (WPS) - ans ✅ Simplifies Wi-Fi configuration but vulnerable to brute force attacks Stateful Packet Inspection (SPI) - ans ✅ Firewall technique that inspects incoming data packets to make sure they correspond to an outgoing request Virtual Private Network (VPN) - ans ✅ Establishes a secure network connection, a way to protect your LAN's data from being observed by outsiders Overloading - ans ✅ Technique where NAT translates the home network's private IP addresses to a single public IP address Port Address Translation (PAT) - ans ✅ A port number is tracked with the client computer's private address when translating to a public address

WGU C172 Network and Security – Foundations Test

Questions and Answers Latest 2023 Graded A+

CAT6 - ans ✅ Class E twisted-pair cables capable of up to 1000Mbps/1Gbps up to a length of 100 m RJ-45 - ans ✅ The 8-pin modular connector used with CAT6/5e/5 cable Numerics - ans ✅ A numerical representation (used to describe the data rates for the twisted-pair/coaxial media) 10Base2 - ans ✅ ThinNet. 10Mbps over coax, up to 185 m 10Base5 - ans ✅ ThickNet. 10Mbps over coax, up to 500 m 10BaseT - ans ✅ 10Mbps over twisted-pair 10BaseF - ans ✅ 10Mbps over multimode fiber-optic cable 10BaseFL - ans ✅ 10Mbps over 850 nm multimode fiber-optic cable

WGU C172 Network and Security – Foundations Test

Questions and Answers Latest 2023 Graded A+

100BaseT - ans ✅ Fast Ethernet. 100Mbps over twisted-pair 100BaseFX - ans ✅ 100Mbps over fiber 1000BaseT - ans ✅ Gigabit Ethernet. 1000Mbps over twisted-pair 1000BaseFX - ans ✅ 1000Mbps over fiber 10GE - ans ✅ 10Gb Ethernet 10GBaseT - ans ✅ Another name for 10GE when over copper Straight-through - ans ✅ Transmit and receive signal pairs are aligned end-to-end Crossover - ans ✅ Transmit and receive signal pairs are switched Uplink port - ans ✅ Allows the connection of a switch to another switch without having to use a crossover cable

WGU C172 Network and Security – Foundations Test

Questions and Answers Latest 2023 Graded A+

Link light - ans ✅ Indicates that the transmit and receive pairs are properly aligned Link integrity test - ans ✅ Protocol that verifies a communication link between two Ethernet devices has been established Link pulses - ans ✅ Sent by connected devices via twisted-pair when data is not being transmitted to indicate that the link is still up Ping - ans ✅ ICMP command used to test that a device on the network is reachable Internet Control Message Protocol - ans ✅ What ICMP stands for, verifies that messages are being delivered Open system interconnect - ans ✅ What OSI stands for TIA/EIA 568-A - ans ✅ The first major standard describing a structured cabling system for computer networks in 1995

WGU C172 Network and Security – Foundations Test

Questions and Answers Latest 2023 Graded A+

campus area network (CAN) - ans ✅ Interconnected LANs within a limited geographic area (college campus, military base, group of commercial buildings) EIA/TIA 568-B - ans ✅ The standard that defines the six subsytems of a structured cabling system. EIA/TIA-568-B.1 - ans ✅ Commercial cabling standard, master document EIA/TIA-568-B.2 - ans ✅ Standard for twisted-pair media EIA/TIA-568-B.3 - ans ✅ Optical fiber cabling standard Building entrance - ans ✅ The point where the external cabling and wireless services interconnect with the internal building cabling. Also called the entrance facilities. Entrance facilities (EF) - ans ✅ Another name for the building entrance

WGU C172 Network and Security – Foundations Test

Questions and Answers Latest 2023 Graded A+

Equipment room (ER) - ans ✅ A room set aside for complex electronic equipment such as the network servers and telephone equipment Telecommunications closet - ans ✅ The location of the cabling termination points that includes the mechanical terminations and the distribution frames. Also called telecommunications room (TR) or telecommunications enclosure (TE). Backbone cabling - ans ✅ Cabling that interconnects telecommunication closets, equipment rooms, and cabling entrances in the same building and between buildings Horizontal cabling - ans ✅ Cabling that extends out from the telecommunications closet into the LAN work area Telecommunications outlet (TCO) - ans ✅ The wall plate where the fiber or twisted-pair cable terminates in the room. Can include non-computer network comms Work area - ans ✅ The location of the computers and printers, patch cables, jacks, computer adapter cables, and fiber jumpers

WGU C172 Network and Security – Foundations Test

Questions and Answers Latest 2023 Graded A+

Main cross-connect - ans ✅ Typically the central telecommunications connection point for a campus or building. Also called the main distribution frame (MDF), main equipment room, or campus distributor (CD). Intermediate cross-connect - ans ✅ The building's connection point to the campus backbone. Also called the building distributor (BD). cross-connect - ans ✅ A space where you are going to take one or multiple cables and connect them to one or more cables or equipment Horizontal cross-connect - ans ✅ The connection between the building distributors and the horizontal cabling to the work area/outlet. Also called the floor distributors (FD). work area outlet (WO) - ans ✅ Used to connect devices to the cable plant. Also called the TCO. Terminated - ans ✅ Where the cable connects to a jack in a wall plate, a patch panel, or an RJ-45 modular plug

WGU C172 Network and Security – Foundations Test

Questions and Answers Latest 2023 Graded A+

Patch cable - ans ✅ A short cable used to make the physical connection between networking equipment Internet Control Message Protocol (ICMP) - ans ✅ Protocol used to control the flow of data, report errors, and perform diagnostics Internet Group Message Protocol (IGMP) - ans ✅ Protocol used when one host needs to send data to many destination hosts (i.e., to multicast) multicast addresses - ans ✅ The reserved addresses used to send a multicast data packet non-Internet routable IP addresses - ans ✅ IP addresses not routed on the Internet. Private address ranges, blocked by ISPs. subnetting - ans ✅ A technique used to break down (or partition) networks into subnetworks classful network - ans ✅ Term for when the IP and subnet addresses are within the same network

WGU C172 Network and Security – Foundations Test

Questions and Answers Latest 2023 Graded A+

supernetting - ans ✅ Technique allowing multiple networks to be specified by one subnet mask CIDR block - ans ✅ The grouping of two or more class networks together, also called supernetting supernets - ans ✅ The grouping of two or more class networks together, also called CIDR blocks full IPv6 address - ans ✅ All 32 hexadecimal positions contain a value other than 0 3 types of IPv6 address - ans ✅ unicast multicast anycast link-local address - ans ✅ Address designed to be used for and limited to communications on the local link

WGU C172 Network and Security – Foundations Test

Questions and Answers Latest 2023 Graded A+

multicast address - ans ✅ IPv6 addresses that start with FF00::/ anycast address - ans ✅ IPv6 address obtained from a list of addresses but is only delivered to the nearest node 6to4 prefix - ans ✅ A technique that enables IPv6 hosts to communicate over the IPv4 Internet Stateless address autoconfiguration (SLAAC) - ans ✅ Allows a server-less basic network configuration of the IPv6 computers social engineering - ans ✅ A way for an intruder to obtain enough information from people to gain access to the network password cracking - ans ✅ The attacker tries to guess the user's password dictionary attack - ans ✅ Uses known passwords and many variations to try to log in to an account

WGU C172 Network and Security – Foundations Test

Questions and Answers Latest 2023 Graded A+

brute force attack - ans ✅ Uses every possible combination of characters for the password to log in to an account packet sniffing - ans ✅ A technique in which the contents of data packets are watched IPsec - ans ✅ Where each packet is encrypted prior to transmission across the network link, used in VPNs netstat -a - ans ✅ Windows command to display currently open ports and who is connected netstat -b - ans ✅ Windows command to display what app is connected/listening to a port nmap - ans ✅ A Linux port scanner penetration testing - ans ✅ A way to evaluate the security of the user's network by trying to exploit vulnerabilities

WGU C172 Network and Security – Foundations Test

Questions and Answers Latest 2023 Graded A+

virus - ans ✅ A piece of malicious computer code that can damage your hardware, software, or other files worm - ans ✅ A type of virus, typically proliferates by itself, and can deny service to networks denial of service (DoS) - ans ✅ A service is being denied to a computer, network, or server directed broadcast - ans ✅ The broadcast is sent to a specific subnet firewall - ans ✅ Device/software that protects the network, prevent unauthorized access access lists (ACLs) - ans ✅ A basic form of firewall protection DMZs - ans ✅ Zone used to isolate the "outside" servers

WGU C172 Network and Security – Foundations Test

Questions and Answers Latest 2023 Graded A+

packet filtering - ans ✅ Firewall technique that limits the information that can enter the network or move between segments proxy server - ans ✅ Server clients go through to communicate with secure systems stateful firewall - ans ✅ A firewall that keeps track of the data packet flow perimeter firewall - ans ✅ A firewall physically placed between the public Internet and its internal networks intrusion prevention system (IPS) - ans ✅ Monitors and analyzes the network traffic in real time to identify misuse and anomalies IP tunnel - ans ✅ An IP packet encapsulated in another IP packet, secure VPN connection between 2 endpoints remote access VPN - ans ✅ VPN type used to let remote users log in to network. The client usually initiates the connection

WGU C172 Network and Security – Foundations Test

Questions and Answers Latest 2023 Graded A+

site-to-site VPN - ans ✅ VPN used to create a virtual link from one site to another. Network hardware makes the connection PPP - ans ✅ The de facto protocol of the dial-up networking Password Authentication Protocol (PAP) - ans ✅ A simple, clear-text (unencrypted) authentication method, superseded by CHAP Challenge Handshake Authentication Protocol (CHAP) - ans ✅ An encrypted authentication method that uses the MD5 hashing algorithm Extensible Authentication Protocol (EAP) - ans ✅ Collects the user authentication data and validates it against an auth server like a RADIUS server PPTP - ans ✅ Uses a modified GRE tunnel to carry its encapsulated packet for IP transmission Layer 2 Forwarding Protocol (L2F) - ans ✅ Cisco tunneling protocol on UDP port 1701, requires special hardware, passes PPP auth to corporate server

WGU C172 Network and Security – Foundations Test

Questions and Answers Latest 2023 Graded A+

Layer 2 Tunneling Protocol (L2TP) - ans ✅ IETF tunneling protocol on UDP port 1701, no special hardware, initiated directly from the client Authentication Header (AH) - ans ✅ IPsec security protocol guaranteeing packet authenticity (via MD5 or SHA-1) Encapsulating Security Payload (ESP) - ans ✅ IPsec security protocol providing confidentiality via encryption (DES, 3DES, AES) Diffie-Hellman - ans ✅ A key exchange algorithm used to generate a shared session secret key to encrypt the key exchange jamming - ans ✅ Attack where the wireless network is overwhelmed with wireless traffic, preventing use/access open authentication - ans ✅ A null authentication that can enable any client to authenticate to an AP as long as they know the SSID shared key authentication - ans ✅ Authentication method where both the client and the access point share a key called a pre-shared key (PSK)

WGU C172 Network and Security – Foundations Test

Questions and Answers Latest 2023 Graded A+

CAT6a - ans ✅ An improved version of CAT6 that supports 10GB Ethernet. Class Ea. Balanced mode - ans ✅ Neither wire in the wire pairs connects to ground network congestion - ans ✅ A slowdown on network data traffic movement bottlenecking - ans ✅ Another name for network congestion full duplex - ans ✅ Transmit and receive at the same time color map - ans ✅ The specification of which wire color connects to which pin on the connector T568A - ans ✅ Color map that begins with green T568B - ans ✅ Color map that begins with orange

WGU C172 Network and Security – Foundations Test

Questions and Answers Latest 2023 Graded A+

Link - ans ✅ Point from one cable termination to another Full channel - ans ✅ Consists of all the link elements from the wall plate to the hub or switch Attenuation - ans ✅ The amount of loss in the signal strength as it propagates down a wire or fiber strand near-end crosstalk (NEXT) - ans ✅ A measure of the level of crosstalk or signal coupling in a cable. A high (dB) value is desirable Insertion loss - ans ✅ Another name for attenuation Crosstalk - ans ✅ Signal coupling in a cable Return loss - ans ✅ The ratio of power transmitted into a cable to the amount of power returned or reflected

WGU C172 Network and Security – Foundations Test