Module 5
Which two statements apply to the Transport Layer protocols, TCP and UDP? (Choose two.) TCP provides reliability and data acknowledgement. TCP resends lost data and has low overhead. UDP is fast and delivers data as it arrives. UDP has low overhead and acknowledges packets received. Both TCP and UDP use port numbers and are considered to be reliable.
1. TCP provides reliability and data acknowledgement. 2. UDP is fast and delivers data as it arrives.
A technician has captured packets on a network that has been running slowly when accessing the internet. Which port number should the technician look for within the captured material to locate HTTP packets? 20 21 53 80 110
80
Which three Wi-Fi standards operate in the 2.4GHz range of frequencies? (Choose three.) 802.11a 802.11b 802.11g 802.11n 802.11ac
802.11b 802.11g
mobile hotspot
A cell phone configured to allow other devices to connect via Wi-Fi.
5G
A cellular technology that supports speeds of up to 3 Gb/s download and 1.5 Gb/s upload.
802.11g
A legacy WLAN standard with a maximum speed of 54 Mb/s.
Satellite
A popular choice for rural markets that do not have a DSL or cable provider.
Z-Wave
A proprietary smart home standard that can support up to 232 connected devices in the same wireless mesh network.
NFC
A secure close proximity transaction system typically used for wireless payments.
Zigbee
A smart home standard with some open source code that uses IEEE 802.15.4.
Fiber
An increasingly popular choice for internet connections to homes and businesses that uses light to transfer data.
What transport layer goes with Port 161/162 - SNMP (data)?
Both
Used to trace the remote end of a cable for testing and troubleshooting.
Cable tester
Acts like a mirror reflecting light to keep it traveling down the fiber.
Cladding
A device that allows administrators to remotely manage many devices through one dashboard interface.
Cloud-based network controller
DSL
Digital phone service that can also connect to the internet.
Sending low voltage electricity down a network cable to power devices.
Embeded
Which technology uses existing electrical wiring to connect devices to a network? 802.11 Ethernet over Power IPS Z-Wave
Ethernet over Power
A device that offers stateful packet inspection along with other advanced features.
Firewall
A legacy device that extended the number of devices that could be connected to the LAN.
Hub
A system that no longer be upgraded or patched.
Legacy
Test the functionality of the send and receive signals on computer ports.
Loopback adapter
Measures electrical characteristics to test the integrity of circuits.
Multimeter
Uses LED emitters and popular for LANs and runs up to 550 meters.
Multimode fiber
Which type of network will extend a short distance and connects printers, mice, and keyboards to an individual host? LAN MAN WLAN PAN
PAN
Special purpose microchips that are programmed to carry out specific functions.
Patch panel
Sending data down power lines to networked devices.
Power over Ethernet
A technician has been asked to assist with some LAN cabling. What are two standards that the technician should research before this project begins? (Choose two.) 802.11n 802.11c T568A T568B Zigbee Z-Wave
T568A T568B
Broadband
Technologies that use different frequencies to send multiple signals over the same medium.
Tethering
The process of connecting another device to a cell phone so that the connected device can access the internet.
802.11ac
The standard that all WLAN should use when implementing new devices.
Primarily used to determine signal strength so that access points can be positioned for maximum coverag.
Wi-Fi analyzer
Typically come with a variety of notches for different wire gauges.
Wire Stripper
Designed to snip aluminum and copper wire.
Wire cutter
Which smart home technology requires the use of a device, known as a coordinator, to create a wireless PAN? 802.11ac 802.11n Z-Wave Zigbee
Zigbee
What are two common media used in networks? (Choose two.) copper water nylon fiber wood
copper fiber
router
forwards traffic between networks.
LAN
local area network - Typically uses wire cable to connect devices to a switch in a small geographical area.
MAN
metroplex area network - A network that spans across a city.
PAN
personal area network - Connects devices in close proximity to the user, usually using Bluetooth.
VLAN
virtual LAN - Can extend beyond traditional LANs and group users based on administratively defined boundaries instead of physical boundaries.
VPN
virtual private network - Allows users to securely connect to another network across unsecure networks
WAN
wide area network - Connects networks across large geographical distance, such as the internet.
WLAN
wireless LAN - A LAN that wirelessly connects devices on the network.
WMN
wireless mesh network - Wireless APs connect together to extend the reach of a wireless network.
Authentication
Typically uses a AAA server.
A company is expanding its business to other countries. All branch offices must remain connected to corporate headquarters at all times. Which network technology is required to support this scenario? LAN MAN WAN WLAN Incomplete Question 3
WAN
modem
connects a home or small office to the Internet.
switch
connects multiple devices to the network.
RFID
A tag and reader system can accommodate ranges from 25 meters for passive tags and up to 100 meters for active tags.
LTE
A technology that meets the standards for fourth generation mobile phones.
Bluetooth
A wireless PAN technology that supports up to seven connected devices.
Which network service automatically assigns IP addresses to devices on the network? DHCP Telnet DNS traceroute
DHCP
A device placed between an internal and external network to filter traffic based on rules defined in an ACL.
Endpoint management server
Collection point for cable runs from networking devices.
Ethernet over Power
T or F Some application layer protocols use neither TCP nor UDP.
F
T or F The transport layer has only one protocol, like the internet layer.
F
Which network device regenerates the data signal without segmenting the network? hub modem switch router
Hub
A device that is installed inline on the network to evaluate traffic before forwarding it to the destination.
IDS
Which security technology is used to passively monitor network traffic with the objective of detecting a possible attack? IDS IPS firewall proxy server
IDS
A device that centralizes the view of all devices in the network so that administrators can manage them from one interface.
IPS
DHCP
Provides IP addresses to hosts on the network.
Syslog
Provides a method for storing system messages from networking devices.
Proxy
Provides the ability to cache web pages for quick access.
Repeater
Regenerates weak network signals.
A device that connects networks and forwards data based on the IP address.
Router
Uses a laser and popular for long distance runs FONTning hundreds of kilometers.
Single-mode fiber
A device that uses radio waves to extend the distance of a network.
Switch
T or F Some application layer protocols can use both TCP and UDP.
T
T or F Some application layer protocols use only UDP.
T
What transport layer goes with Port 110 - POP3?
TCP
What transport layer goes with Port 143 - IMAP?
TCP
What transport layer goes with Port 20 - FTP (data)?
TCP
What transport layer goes with Port 21 - FTP (control)?
TCP
What transport layer goes with Port 22 - SSH?
TCP
What transport layer goes with Port 23 - Telnet?
TCP
What transport layer goes with Port 25 - SMTP?
TCP
What transport layer goes with Port 389 - LDAP (control)?
TCP
What transport layer goes with Port 548 - AFP?
TCP
Which two protocols operate at the transport layer of the TCP/IP model? (Choose two.) TCP UDP IP ICMP FTP
TCP UDP
Checks for wiring shorts, faults, and wires connected to the wrong pins.
Tone generator and probe
DNS
Translates a domain name, such as cisco.com, to an IP address.
What transport layer goes with Port 67 - DHCP (server)?
UDP
What transport layer goes with Port 68 - DHCP (client)?
UDP
What transport layer goes with Port 69 - TFTP?
UDP
A device that copies traffic and forwards to a management station for evaluation.
UTM
Cable
Uses coaxial cables to deliver a variety of content including TV channels, internet, and voice calls.
File
Uses protocols such as FTPS, SFTP, and SCP.
Web
Uses protocols such as HTTP and HTTPS to display information in a browser.
Uses protocols such as SMTP and POP3 to send and receive messages.
Cellular
Uses towers distributed throughout a user's coverage area to provide seamless access to phone and internet services.
Technology used to send and receive on a single strand of fiber.
WDM
A device that microsegments a LAN and forwards data based on the MAC address.
Wireless AP
wireless router
connects multiple wireless devices to the network and may include a switch to connect wired hosts.
access point (AP)
connects to a wireless router and is used to extend the reach of a wireless network.
What transport layer goes with Port 3389 - RDP?
Both
What transport layer goes with Port 427 - SLP?
Both
What transport layer goes with Port 443 - HTTPS?
Both
What transport layer goes with Port 445 - SMB/CIFS?
Both
What transport layer goes with Port 53 - DNS?
Both
What transport layer goes with Port 80 - HTTP?
Both
What transport layer goes with Ports 137-139 - NetBIOS NetB?
Both
A legacy device that was used to divide a LAN into segments.
Bridges
NIC
Connects end devices to the network.
Element in a fiber optic cable through which light pulses travel.
Core
Used to attach RJ-45 and RJ-11 connectors to cables.
Crimper
