Network+ N10-008 100%
VERIFIED ANSWERS
2024/2025
Telnet
tcp/23 - Unencrypted remote communication
SSH - Secure Shell
tcp/22 - Encrypted communication link
DNS - Domain Name System
udp/53 - Converts names to IP addresses
SMTP - Simple Mail Transfer Protocol
tcp/25 - serv-to-serv email transfer / send email
SFTP - Secure FTP
tcp/22 - SSH File Transfer Protocol
FTP - File Transfer Protocol
tcp/20 (active mode data), tcp/21 (control) - transfer files between systems with
authentication
TFTP - Trivial FTP
udp/69 - file transfer w/o authentication or encryption
DHCP - Dynamic Host Configuration Protocol

udp/67, udp/68 - Automated config of IP address, subnet mask and other options
HTTP - Hypertext Transfer Protocol
tcp/80 - communication in browser and other applications
HTTPS - HTTP Secure
tcp/443 - secure communication in browser
SNMP - SImple Network Management Protocol
udp/161 - gather data from network devices
SNMP Trap
tcp/162, udp/162 - notification sent from SNMP agent to SNMP manager
RDP - Remote Desktop Protocol
tcp/3389 - share desktop remotely
NTP - Network Time Protocol
udp/123 - Sync clocks between devices
SIP - Session Initiation Protocol
tcp/5060, tcp/5061 - Setup and manage VoIP sessions
SMB - Server Message Block
tcp/445 - file sharing/printer sharing Windows
POP3 - Post Office Protocol version 3
tcp/110 - basic mail transfer
IMAP - Internet Message Access Protocol v4

tcp/143 - Includes management of email inbox from multiple clients
LDAP - Lightweight Directory Access Protocol
tcp/389 - Store and retrieve info in a network directory
LDAPS - LDAP Secure
tcp/636 - non-standard LDAP over SSL
H.323 - H.32x protocol
tcp/1720 - VoIP setup and management
MGCP - Media Gateway Control Protocol
udp/2427, udp/2727 - Call control for VoIP
NetBIOS - Network Basic Input/Output System
tcp/139, udp/137, udp/138 - Network communication servers for LANs that use NetBIOS
NNTP - Network New Transport Protocol
tcp/119 - posting and reading articles on Usenet news servers
rsh - Remote Shell
tcp/514 - execute commands on computer from remote user
RTP - Real-time Transport Protocol
tcp/5004,5005 udp/5004,5005 - Deliver media-based data
RTSP - Real-time Streaming Protocol
tcp/554, udp/554 - communicates w/ media server and controls playback of media files
Layer 1

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Physical: electrical signaling, cabling, connectors (Cable, NIC, Hub)
Layer 2
Data Link: switching layer (Frame, MAC address, EUI-48, EUI-64, Switch)
Layer 3
Network: routing layer (IP address, router, packet)
Layer 4
Transport: "post office" later (TCP segment, UDP datagram)
Layer 5
Session: communication between devices (Control protocols, tunneling protocols)
Layer 6
Presentation: encoding and encryption (SSL/TLS)
Layer 7
Application: layer we see (HTTP, FTP, DNS, POP3)
CSMA/CD - Carrier Sense Multiple Access / Collision Detect
Senses data across multiple devices on network to detect when two stations talk at
once - Half-duplex Ethernet
CSMA/CA - CSMA / Collision Avoidance
Wireless (Ready To Send - Clear To Send)
STP - Spanning Tree Protocol
Prevent loops in switch

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10BASE5
Coax (thicknet) - 10Mbps, 500 m
10BASE2
Coax (thinnet) - 10Mbps, 185 m
10BASE-T
Cat 3 UTP - 10Mbps, 100 m
A 10BASE-T denotes an early implementation that works at 10 Mbps (10), uses a
baseband signal (BASE), and runs over twisted pair copper cabling (-T).
100BASE-TX
Cat 5 UTP - 100Mbps, 100 m
A 100BASE-TX refers to Fast Ethernet working over Cat 5 (or better) twisted pair
copper cable for speeds up to 100Mbps, and a maximum supported link length of 100
meters (328 feet).
100BASE-FX
MMF - 100Mbps, 2 km
Installers often use the 100BASE-FX Fast Ethernet firer standard for wiring backbones.
1000BASE-T
Cat 5e UTP - 1Gbps, 100 m
1000BASE-TX
Cat 6 UTP - 1Gbps, 100 m

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2024-2025 Network+ N10-008 Practice Exam with Answers (134 Solved Questions)

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