6.1 Flashcards
What is the purpose of configuring devices for wired and wireless networks?
To enable communication and data transfer between devices in a network
This includes setting up physical connections for wired networks and configuring settings for wireless networks.
What does MAC stand for in networking?
Media Access Control
MAC addressing is used to identify devices on a local network.
What are the two parts of an IPv4 address?
- Network
- Host
The network part identifies the specific network, while the host part identifies the device on that network.
What is the purpose of a subnet mask?
To determine which part of an IP address is the network part
Subnet masks are essential for routing traffic within and between networks.
What are the main differences between IPv4 and IPv6 addressing?
- IPv4 uses decimal, IPv6 uses hexadecimal
- IPv6 supports a larger address space
- IPv6 has address compression rules
IPv4 addresses are limited, while IPv6 was developed to accommodate the growing number of devices.
What is static addressing in IP configuration?
IP addresses are manually assigned and do not change
Static addresses are used for devices that require consistent IP addressing.
What does DHCP stand for?
Dynamic Host Configuration Protocol
DHCP automatically assigns IP addresses to devices on a network.
What is the role of a DNS server?
To resolve domain names to IP addresses
DNS servers maintain a database of domain names and their corresponding IP addresses.
What is a VLAN?
Virtual Local Area Network
VLANs allow segmentation of networks based on logical connections instead of physical ones.
What is the function of a DMZ in networking?
To provide services to an untrusted network
A DMZ often contains servers that are accessible from the internet while protecting the internal network.
What does NAT stand for, and what is its purpose?
Network Address Translation; it converts private IP addresses to public IP addresses
NAT allows multiple devices on a local network to share a single public IP address.
What is the ping command used for?
To test connectivity between devices
The ping command is part of the Internet Control Message Protocol (ICMP).
Fill in the blank: The _______ allows devices to dynamically add themselves to a wireless network without intervention.
Universal Plug and Play (UPnP)
UPnP is considered a security risk due to its lack of security measures.
What is the purpose of MAC address filtering?
To restrict access to a network based on MAC addresses
This enhances network security by allowing only authorized devices.
What are the four steps in the DHCP lease process?
- Discover
- Offer
- Request
- Acknowledge
This process allows a client to obtain an IP address from a DHCP server.
True or False: A link-local IPv4 address is used when a device cannot obtain an IPv4 IP address.
True
Link-local addresses are automatically configured for local communication.
What is the role of a firewall in a network?
To control incoming and outgoing network traffic based on predetermined security rules
Firewalls help protect networks from unauthorized access.
What is the significance of the default gateway in static addressing?
It is the address of the router used to send information to other networks
The default gateway is crucial for communication outside the local network.
What are some common security measures for DNS servers?
- Implementing anti-spam features
- Using TXT resource records
These measures help prevent DNS abuse by threat actors.
