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Questions and Answers
Which network device regenerates the data signal without segmenting the network?
Which network device regenerates the data signal without segmenting the network?
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?
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?
Which network service automatically assigns IP addresses to devices on the network?
Which network service automatically assigns IP addresses to devices on the network?
DHCP
Which security technology is used to passively monitor network traffic with the objective of detecting a possible attack?
Which security technology is used to passively monitor network traffic with the objective of detecting a possible attack?
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Which two protocols operate at the transport layer of the TCP/IP model? (Choose two.)
Which two protocols operate at the transport layer of the TCP/IP model? (Choose two.)
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Which type of network will extend a short distance and connects printers, mice, and keyboards to an individual host?
Which type of network will extend a short distance and connects printers, mice, and keyboards to an individual host?
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Which three Wi-Fi standards operate in the 2.4GHz range of frequencies? (Choose three.)
Which three Wi-Fi standards operate in the 2.4GHz range of frequencies? (Choose three.)
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What are two common media used in networks? (Choose two.)
What are two common media used in networks? (Choose two.)
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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?
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?
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Which smart home technology requires the use of a device, known as a coordinator, to create a wireless PAN?
Which smart home technology requires the use of a device, known as a coordinator, to create a wireless PAN?
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Study Notes
Module 5
- Network devices: A hub regenerates the data signal without segmenting the network. A WAN is needed when a company expands to other countries, maintaining constant connections with corporate headquarters.
- Network service: DHCP automatically assigns IP addresses to devices on a network.
- Security technology: IDS passively monitors network traffic to detect potential attacks.
- Transport layer protocols: TCP and UDP operate at the transport layer of the TCP/IP model.
- Types of networks: PANs (Personal Area Networks) connect devices like printers, keyboards, and mice to a host.
- Wireless standards: 802.11b, 802.11g, and 802.11n operate in the 2.4 GHz frequency range.
- Network media: Copper and fiber are common network media.
- HTTP packets: Technicians look for port 80 in captured network traffic to locate HTTP packets.
Module 6
- Multipurpose device: Switches, routers, and wireless access points are integrated into multipurpose devices for home networks.
- PoE-powered devices: Access points and IP phones are commonly powered using PoE.
- Cable termination: A patch panel terminates cable runs, keeping cables secure in walkways.
- Signal interference reduction: RFI and EMI interference is reduced by STP more effectively than UTP.
- Wire termination order: Green and orange wires change termination order between 568A and 568B standards.
- Proxy server function: A common function of a proxy server is to store frequently accessed web pages on the internal network.
- DHCP Client Protocol: Port 68 is used by the DHCP client protocol.
Module 7
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TCP/IP model layers: The correct order of the TCP/IP model layers, from top to bottom, is application, transport, internet, and network access.
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Satellite service: LEO satellite service can support up to ~100 Mbps with lower latency compared to standard satellite.
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Email server type: Email servers support SMTP, POP, and IMAP protocols.
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Modem connector: RJ-11 connectors are used to connect analog modems to telephone line sockets.
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WAN characteristic: A WAN connects geographically dispersed networks.
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Network device for filtering and VPNs: A UTM device is well-suited for stateful packet filtering, email filtering, and VPN services.
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Bluetooth devices: A Bluetooth device can connect to up to seven devices simultaneously.
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Wireless connectivity device: An access point provides wireless connectivity to users.
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DSL modem: A DSL modem is needed for users connecting to an ISP via the telephone network.
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Application tracking: Laptops track data flow between applications using the source port number.
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IPv6 address: The network identifier of a device with the IPv6 address 2001:0db8:cafe:4500:1000:00d8:0058:00ab/64 is 2001:0db8:cafe:4500
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Network filtering methods: Whitelisting is a network filtering method that specifies allowed devices.
Additional Information
- Network Device Troubleshooting: Troubleshooting domain name resolution issues can be done using the nslookup command. New network drivers for network interface cards (NICs) can often be found on the manufacturer's website.
- IP Addresses: A computer that has been assigned an IP address in the 169.254.x.x range is likely unable to communicate with networks outside its local network segment.
- Network issues: When a workstation or computer cannot access the Internet, a possible cause could be that the gateway IP address is misconfigured or there is a problem with the DHCP server.
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Description
This quiz covers essential concepts from Networking Modules 5 and 6, including network devices like hubs and switches, transport layer protocols such as TCP and UDP, and various network media types. Key topics also include network security technology and wireless standards. Test your understanding of these foundational networking principles!
