Networking Module 5 Quiz

Module 5

• Network Device Regeneration: A hub regenerates the data signal without segmenting the network.
• Wide Area Network (WAN): A WAN is needed for connecting branch offices to corporate headquarters across geographical distances.
• Dynamic Host Configuration Protocol (DHCP): DHCP automatically assigns IP addresses to devices on a network.
• Intrusion Detection System (IDS): IDS passively monitors network traffic to detect potential attacks.
• Transport Control Protocol (TCP) and User Datagram Protocol (UDP): TCP and UDP are transport layer protocols in the TCP/IP model.
• Personal Area Network (PAN): A PAN connects devices like printers, keyboards, and mice to an individual host.
• Wi-Fi Standards (2.4 GHz): 802.11b, 802.11g, and 802.11n operate in the 2.4GHz frequency range.
• Network Media: Copper and fiber optic cables are common network media.
• HTTP Port: Port 80 is used for HTTP packets.

Module 6

• Multipurpose Network Device Components: A multipurpose network device typically integrates a switch, router, and wireless access point.
• Power over Ethernet (PoE): PoE powers devices like access points and IP phones.
• Patch Panel: A patch panel terminates cable runs and keeps them secure.
• Signal Interference Reduction: Shielded Twisted-Pair (STP) cable reduces radio frequency interference (RFI) and electromagnetic interference (EMI) more effectively than Unshielded Twisted-Pair (UTP) cable.
• 568A/568B Wire Pairs: The green and orange wires change termination order between the 568A and 568B standards.
• Proxy Server Function: A proxy server stores frequently accessed web pages on the internal network.
• DHCP Client Port: Port 68 is used by the DHCP client protocol.

Module 7

• TCP/IP Model Layers (Top to Bottom): Application, Transport, Internet, Network Access
• LEO Satellite Service: LEO satellites provide high-bandwidth, low-latency internet access compared to traditional satellite.
• Email Server Protocols: SMTP, POP, and IMAP are protocols used with email servers.
• Modem Connector: An RJ-11 connector is used with analog modems.
• Wide Area Network (WAN): A WAN connects multiple networks that are geographically separated.
• PoE Standard: The IEEE 802.3af standard is used for PoE.
• Unified Threat Management (UTM): A UTM device provides stateful packet filtering, email filtering, and VPN services.
• Bluetooth Devices: A Bluetooth device can connect to 7 devices simultaneously.
• Access Point Function: An access point provides wireless connectivity to users.
• DSL Modem: If a user connects to an ISP through a telephone network, a DSL modem is required.
• IPv6 Address: A device with the IPv6 address 2001:0db8:cafe:4500:1000:00d8:0058:00ab/64 has a network identifier of 2001:0db8:cafe:4500.
• Network Filtering: Whitelisting uses IP addresses to specify allowed devices on a network.

Module 8

• NetBIOS Description: NetBIOS is an obsolete and insecure Windows network protocol.
• DNS Server Issue: If a user can ping the IP address of a web server but cannot ping the web server's hostname, the DNS server is malfunctioning.
• DHCP Server Issues: If a computer is assigned an IP address in the 169.254.x.x range, the DHCP server is unreachable.
• Network Troubleshooting: Network issues, such as a user reporting that the workstation cannot connect, might be caused by static IP addresses.
• DHCP Server Failure, IP Address Assignment, and Gateway Issues: Workstations may obtain IP addresses from 169.254.0.0/16 if DHCP servers are not operational, or the network's gateway settings may not be configured properly.
• Network Device Filtering: Using MAC address filtering can control which devices access a specific network.

General

• Laptop Component Throttling: Laptops' CPUs use throttling to reduce power consumption and heat.
• Laptop Motherboard Form Factor: Laptop motherboard form factors vary by manufacturer.
• SO DIMM: SODIMM is a small form factor memory type suitable for laptops.
• Geocaching and Geotagging: GPS signals and cellular/Wi-Fi networks are used in geocaching and geo-tagging.
• Email Protocol POP3: POP3 downloads email to a client and deletes it from the server.
• Laptop Cleaning: Mild cleaning solution and cotton swabs are useful for cleaning laptops.
• Laptop Input Devices: Web camera, fingerprint reader, and touchpad are typical laptop input devices.
• Laptop Screen Issues: A laptop's screen could not display due to sleep mode, damaged screen cutoff switch.
• Laptop Memory and FRU: Pressing outward on the clips removes the SODIMM memory modules; a display is a replaceable unit (FRU).
• Mobile Device Connectivity: Wi-Fi and cellular are common mobile device connectivity methods;
• Wireless Devices: Devices commonly connect wirelessly using a wired network.
• High-Speed Data Communications: Digital Subscriber Line (DSL) uses telephone lines for high-speed data communications.
• Interoperability Settings: For a WLAN with both old and new devices, the best interoperability choice is an 802.11n device.
• FTP Servers: FTP servers are used for two-way communication, transferring files, and receiving commands.
• Wireless Router Features: Broadcast SSID and well-known admin password can negatively affect network security.